CROSS-REFERENCE TO RELATED PATENT APPLICATIONS
FIELD OF THE INVENTION
[0002] This invention generally relates to marking alignment tools and particularly to squares
and even more particularly to saddle squares.
BACKGROUND OF THE INVENTION
[0003] Construction and particularly woodworking often has to locate angles and particularly
mark angled lines relative to a side of a workpiece for cutting an angle at the end
of the workpiece.
[0004] Some marking guide tools such as squares have lines demarcated at various angles
that allow a user to align a marking tool such as a pencil with a desired angular
measurement and form a mark. For instance, a curved channel about a reference point
may have a plurality of demarcations at an edge of the channel that represent different
angular measurements. Other tools can use straight edges with angled demarcations
for identifying where to form a desired mark representing a desired angular offset.
[0005] Marking a workpiece using either arrangement suffers from the effects of parallax,
which can result in the user aligning the marking tool at an improper location, particularly
when the line of sight is not inline with the desired demarcation of the alignment
tool.
[0006] There is therefore a need to have improved alignment of a marking tool relative to
a workpiece for marking at a predetermined angular location.
BRIEF SUMMARY OF THE INVENTION
[0007] The present application provides new and improved alignment tools overcoming the
parallax issue. In particular, the present application provides a new and improved
square that allows for marking a workpiece at highly accurate angular orientations
relative to a side of the workpiece.
[0008] In an example, a saddle square configured for forming one or marks on a workpiece
at a desired angular position relative to a side of the workpiece is provided. The
saddle square includes a first leg and a second leg is provided. The first leg defines
a first workpiece abutment plane for abutting a first side of a workpiece. The second
defines a second workpiece abutment plane for abutting a second side of the workpiece.
The second workpiece abutment plane is generally orthogonal to the first workpiece
abutment plane. The first and second legs define an alignment point with the first
and second workpiece abutment planes passing through the alignment point. A continuous
angle marking channel is formed in the first leg. The continuous angle marking channel
includes a plurality of first marking channel portions that are equally angularly
spaced about the alignment point. Each first marking channel portion provides a first
marking channel abutment portion configured to guide a marking tool for forming a
mark on a workpiece at a predetermined angular location relative to the alignment
point.
[0009] In one example, the first marking channel abutment portion may be radially elongated.
[0010] In one example, each of the first marking channel portions are spaced radially outward
from the alignment point a same distance.
[0011] In one example, the continuous angle marking channel includes a plurality of second
marking channel portions. The plurality of second marking channel portions are radially
spaced from the plurality of first marking channel portions. The plurality of second
marking channel portions are equally angularly spaced apart about the alignment point.
Each second marking channel portion provides a first second marking channel abutment
portion configured to guide a marking tool for forming a mark on a workpiece at a
predetermined angular location relative to the alignment point at a first angular
offset from the predetermined angular location of the first marking channel portion
of an adjacent first marking channel portion in a first angular direction about the
alignment point.
[0012] In one example, each second marking channel portion includes a second second marking
channel abutment portion configured to guide a marking tool for forming a mark on
a workpiece at a predetermined angular location relative to the alignment point at
the first angular offset from the predetermined angular location of the first marking
channel portion of the adjacent first marking channel portion in a second angular
direction, opposite the first angular direction about the alignment point.
[0013] In one example, the continuous angle marking channel is continuous such that a marking
tool can travel into each of the plurality of first marking channel portions without
removing the marking tool from the continuous angle marking channel.
[0014] In one example, for each second marking channel portion, the first and second second
marking channel abutment portions face one another and form opposed sides of the second
marking channel portion.
[0015] In one example, the continuous angle marking channel includes a plurality of third
marking channel portions. The third marking channel portions are radially spaced from
the plurality of second marking channel portions. The plurality of third marking channel
portions are equally angularly spaced apart about the alignment point. Each third
marking channel portion provides a third marking channel abutment portion configured
to guide a marking tool for forming a mark on a workpiece at a predetermined angular
location relative to the alignment point and at the first angular offset from the
predetermined angular location of a mark formed using the first second abutment portion
of the second marking channel portion of an adjacent second marking channel portion
in the first angular direction about the alignment point.
[0016] The third marking channel portion could include a second third marking channel abutment
portion.
[0017] In one example, the continuous angle marking channel includes a plurality of fourth
marking channel portions. The plurality of fourth marking channel portions are radially
spaced from the plurality of second marking channel portions. The plurality of fourth
marking channel portions are equally angularly spaced apart about the alignment point.
Each fourth marking channel portion provides a fourth marking channel abutment portion
configured to guide a marking tool for forming a mark on a workpiece at a predetermined
angular location relative to the alignment point and at the first angular offset from
the predetermined angular location of a mark formed using the second second abutment
portion of the second marking channel portion of an adjacent second marking channel
portion in the second angular direction about the alignment point.
[0018] In one example, the plurality of fourth marking channel portions are at a same radial
spacing from the alignment point as the plurality of third marking channel portions.
[0019] In one example, the continuous angle marking channel includes a plurality of fifth
marking channel portions and a plurality of sixth marking channel portions. The plurality
of fifth marking channel portions are radially spaced from the plurality of third
marking channel portions. The plurality of fifth marking channel portions are equally
angularly spaced apart about the alignment point. Each fifth marking channel portion
provides a fifth marking channel abutment portion configured to guide a marking tool
for forming a mark on a workpiece at a predetermined angular location relative to
the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the third marking channel abutment portion of an adjacent
third marking channel portion in the first angular direction about the alignment point.
The plurality of sixth marking channel portions are radially spaced from the plurality
of fourth marking channel portions. The plurality of sixth marking channel portions
are equally angularly spaced apart about the alignment point. Each sixth marking channel
portion provides a sixth marking channel abutment portion configured to guide a marking
tool for forming a mark on a workpiece at a predetermined angular location relative
to the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the fourth marking channel abutment portion of an
adjacent fourth marking channel portion in the second angular direction about the
alignment point.
[0020] In one example, the continuous angle marking channel includes a plurality of seventh
marking channel portions. The plurality of seventh marking channel portions are radially
spaced from the plurality of fifth marking channel portions and the plurality of sixth
marking channel portions. The plurality of seventh marking channel portions are equally
angularly spaced apart about the alignment point. Each seventh marking channel portion
provides a first seventh marking channel abutment portion configured to guide a marking
tool for forming a mark on a workpiece at a predetermined angular location relative
to the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the fifth marking channel abutment portion of an adjacent
fifth marking channel portion in a first angular direction about the alignment point.
Each seventh marking channel portion includes a second seventh marking channel abutment
portion configured to guide a marking tool for forming a mark on a workpiece at a
predetermined angular location relative to the alignment point and at the first angular
offset from the predetermined angular location of a mark formed using the sixth marking
channel abutment portion of the adjacent sixth marking channel portion in the second
angular direction.
[0021] In one example, the first marking channel abutment portion, first second marking
channel abutment portion and the second second marking channel abutment portion of
adjacent first and second marking channel portions are aligned such that the first
marking channel abutment portion is angularly interposed between the first and second
second marking channel abutment portions.
[0022] In one example, the fifth and sixth marking channel portions are at a same radial
spacing from the alignment point.
[0023] In one example, the wherein the third and fourth marking channel portions are at
a same first radial spacing from the alignment point and the fifth and sixth marking
channel portions are at a same second radial spacing from the alignment point. The
second radial spacing is different than the first radial spacing.
[0024] In one example, adjacent ones of the first marking channel abutment portions of the
plurality of first marking channel portions are angularly spaced apart 10 degrees
about the alignment point. Adjacent ones of the first second marking channel abutment
portions of the plurality of second marking channel portions are angularly spaced
apart 10 degrees about the alignment point. Adjacent ones of the second second marking
channel abutment portions of the plurality of second marking channel portions are
angularly spaced apart 10 degrees about the alignment point.
[0025] In one example, the continuous angle marking channel includes at least eight first
marking channel portions spanning an angle of seventy degrees therebetween about the
alignment point.
[0026] In one example, a first one of the first marking channel portions is angularly spaced
from the second workpiece abutment plane about the alignment point by 10 degrees.
[0027] In one example, the alignment point is defined by the intersection of an edge of
the first leg and the second workpiece abutment plane.
[0028] In one example, each first marking channel portion is radially elongated and wherein
each first and second second marking channel abutment portion is radially elongated.
[0029] In another example, a saddle square including first and second legs is provided.
The first leg defines a first workpiece abutment for abutting a first side of a workpiece.
The second leg defining a second workpiece abutment for abutting a second side of
the workpiece. The second workpiece abutment being generally orthogonal to the first
workpiece abutment. The first and second legs define an alignment point with first
and second workpiece abutment planes extending through the alignment point. The first
leg includes a continuous angle marking channel. The continuous angle marking channel
being a stepped channel. The continuous angle marking channel may include a plurality
of radially offset levels.
[0030] In one example, one of the levels is a second level spaced a second radial distance
from the alignment point. The second level includes a plurality of second marking
channel portions. Each second marking channel portion has a first second marking channel
abutment portion for guiding a marking tool to form a mark on a workpiece aligned
with the alignment point. Adjacent ones of the first second marking channel abutment
portions are angularly offset from one another about the alignment point by 10 degrees.
Each second marking channel portion has a second second marking channel abutment portion
for guiding a marking tool to form a mark on a workpiece aligned with the alignment
point. Adjacent ones of the second second marking channel abutment portions are angularly
offset from one another about the alignment point by 10 degrees. The first and second
second marking channel abutment portions of a corresponding second marking channel
portion are angularly spaced apart from one another.
[0031] In one example, one of the levels is a third level spaced a third radial distance
from the alignment point. The third radial distance is less than the second radial
distance. The third level includes a plurality of third marking channel portions configured
for guiding a marking tool to form marks on a workpiece aligned with the alignment
point. Adjacent ones of the third marking channel portions are angularly offset from
one another about the alignment point by 10 degrees. The third level includes a plurality
of fourth marking channel portions configured for guiding a marking tool to form marks
on a workpiece aligned with the alignment point. Adjacent ones of the fourth marking
channel portions being angular offset from one another about the alignment point by
10 degrees.
[0032] In one example, one of the levels is a fourth level spaced a fourth radial distance
from the alignment point. The fourth radial distance is less than the third radial
distance. The fourth level includes a plurality of fifth channel portions configured
for guiding a marking tool to form marks on a workpiece aligned with the alignment
point. Adjacent ones of the fifth marking channel portions are angularly offset from
one another about the alignment point by 10 degrees. The fourth level includes a plurality
of sixth marking channel portions configured for guiding a marking tool to form marks
on a workpiece aligned with the alignment point. Adjacent ones of the sixth marking
channel portions are angular offset from one another about the alignment point by
10 degrees.
[0033] In one example, one of the levels is a fifth level spaced a fifth radial distance
from the alignment point. The fifth radial distance is less than the fourth radial
distance. The fifth level includes a plurality of seventh marking channel portions.
Each seventh marking channel portion has a first seventh marking channel abutment
portion for guiding a marking tool to form a mark on a workpiece aligned with the
alignment point. Adjacent ones of the first seventh marking channel abutment portions
re angularly offset from one another about the alignment point by 10 degrees. Each
seventh marking channel portion has a second seventh marking channel abutment portion
for guiding a marking tool to form a mark on a workpiece aligned with the alignment
point. Adjacent ones of the second seventh marking channel abutment portions are angularly
offset from one another about the alignment point by 10 degrees. The first and second
seventh marking channel abutment portions of a corresponding seventh marking channel
portion are angularly spaced apart from one another.
[0034] In one example, one of the levels is a first level spaced a first radial distance
from the alignment point. The first radial distance is greater than the second radial
distance. The first level includes a plurality of first marking channel portions configured
for guiding a marking tool to form marks on a workpiece aligned with the alignment
point. Adjacent ones of the first marking channel portions are angularly offset from
one another about the alignment point by 10 degrees.
[0035] As noted, the continuous angle marking channel could have more or fewer levels. At
a minimum, two levels would be provided. Preferably, levels one through five are provided.
[0036] In one example, each third marking channel portion provides a third marking channel
abutment portion. Each fourth channel portion provides a fourth marking channel abutment
portion. Each fifth channel portion provides a fifth marking channel abutment portion.
Each sixth channel portion provides a sixth marking channel abutment portion. No marking
channel abutment portion of the continuous angle marking channel is at a same angular
position about the alignment point such that no marking channel abutment portion angularly
aligns with another marking channel abutment portion of the continuous angle marking
channel.
[0037] In one example, the saddle square includes a radially extending first discrete marking
slot spaced 30 degrees from the second workpiece support plane and angularly aligned
about the alignment point with one of the first marking channel portions as well as
a radially extending second discrete marking slot spaced 60 degrees from the second
workpiece support plane and angularly aligned about the alignment point with a second
one of the first marking channel portions. The radially extending first and second
discrete marking slots are not connected to one another and are not connected to the
continuous angle marking channel.
[0038] In one example, a plurality of radially extending discrete marking slots are provided.
Each discrete marking slot is angularly between a first seventh marking channel abutment
portion and a second seventh marking channel abutment portion of an adjacent seventh
marking channel portion.
[0039] In one example, the plurality of radially extending discrete marking slots are radially
offset from the continuous angle marking channel and adjacent ones of the radially
extending discrete marking slots are angularly spaced apart 10 degrees about the alignment
point.
[0040] In one example, at least one of the radially extending discrete marking slots is
located 45 degrees about the alignment point from the second workpiece abutment plane.
[0041] The solutions in accordance with the present invention comprise, in particular, the
combinations of features defined by the following embodiments numbered consecutively.
- 1. A saddle square comprising: a first leg defining a first workpiece abutment plane
for abutting a first side of a workpiece; a second leg defining a second workpiece
abutment plane for abutting a second side of the workpiece, the second workpiece abutment
plane being generally orthogonal to the first workpiece abutment plane; the first
and second legs defining an alignment point with the first and second workpiece abutment
planes passing through the alignment point; a continuous angle marking channel formed
in the first leg, the continuous angle marking channel including: a plurality of first
marking channel portions that are equally angularly spaced about the alignment point,
each first marking channel portion providing a first marking channel abutment portion
configured to guide a marking tool for forming a mark on a workpiece at a predetermined
angular location relative to the alignment point.
- 2.The saddle square of embodiment 1, wherein each of the first marking channel portions
are spaced radially outward from the alignment point a same distance.
- 3. The saddle square of embodiment 1, wherein the continuous angle marking channel
includes: a plurality of second marking channel portions that are radially spaced
from the plurality of first marking channel portions, the plurality of second marking
channel portions are equally angularly spaced apart about the alignment point, each
second marking channel portion providing a first second marking channel abutment portion
configured to guide a marking tool for forming a mark on a workpiece at a predetermined
angular location relative to the alignment point at a first angular offset from the
predetermined angular location of the first marking channel portion of an adjacent
first marking channel portion in a first angular direction about the alignment point.
- 4. The saddle square of embodiment 3, wherein each second marking channel portion
includes a second second marking channel abutment portion configured to guide a marking
tool for forming a mark on a workpiece at a predetermined angular location relative
to the alignment point at the first angular offset from the predetermined angular
location of the first marking channel portion of the adjacent first marking channel
portion in a second angular direction, opposite the first angular direction about
the alignment point.
- 5. The saddle square of embodiment 1, wherein the continuous angle marking channel
is continuous such that a marking tool can travel into each of the plurality of first
marking channel portions without removing the marking tool from the continuous angle
marking channel.
- 6. The saddle square of embodiment 4, wherein for each second marking channel portion,
the first and second second marking channel abutments face one another and form opposed
sides of the second marking channel portion.
- 7. The saddle square of embodiment 4, wherein the continuous angle marking channel
includes: a plurality of third marking channel portions that are radially spaced from
the plurality of second marking channel portions, the plurality of third marking channel
portions are equally angularly spaced apart about the alignment point, each third
marking channel portion providing a third marking channel abutment portion configured
to guide a marking tool for forming a mark on a workpiece at a predetermined angular
location relative to the alignment point and at the first angular offset from the
predetermined angular location of a mark formed using the first second abutment portion
of the second marking channel portion of an adjacent second marking channel portion
in the first angular direction about the alignment point.
- 8. The saddle square of embodiment 7, wherein the continuous angle marking channel
includes: a plurality of fourth marking channel portions that are radially spaced
from the plurality of second marking channel portions, the plurality of fourth marking
channel portions are equally angularly spaced apart about the alignment point, each
fourth marking channel portion providing a fourth marking channel abutment portion
configured to guide a marking tool for forming a mark on a workpiece at a predetermined
angular location relative to the alignment point and at the first angular offset from
the predetermined angular location of a mark formed using the second second abutment
portion of the second marking channel portion of an adjacent second marking channel
portion in the second angular direction about the alignment point.
- 9. The saddle square of embodiment 8, wherein the plurality of fourth marking channel
portions are at a same radial spacing from the alignment point as the plurality of
third marking channel portions.
- 10. The saddle square of embodiment 8, wherein the continuous angle marking channel
includes: a plurality of fifth marking channel portions that are radially spaced from
the plurality of third marking channel portions, the plurality of fifth marking channel
portions are equally angularly spaced apart about the alignment point, each fifth
marking channel portion providing a fifth marking channel abutment portion configured
to guide a marking tool for forming a mark on a workpiece at a predetermined angular
location relative to the alignment point and at the first angular offset from the
predetermined angular location of a mark formed using the third marking channel abutment
portion of an adjacent third marking channel portion in the first angular direction
about the alignment point; a plurality of sixth marking channel portions that are
radially spaced from the plurality of fourth marking channel portions, the plurality
of sixth marking channel portions are equally angularly spaced apart about the alignment
point, each sixth marking channel portion providing a sixth marking channel abutment
portion configured to guide a marking tool for forming a mark on a workpiece at a
predetermined angular location relative to the alignment point and at the first angular
offset from the predetermined angular location of a mark formed using the fourth marking
channel abutment portion of an adjacent fourth marking channel portion in the second
angular direction about the alignment point.
- 11. The saddle square of embodiment 10, wherein the continuous angle marking channel
includes: a plurality of seventh marking channel portions that are radially spaced
from the plurality of fifth marking channel portions and the plurality of sixth marking
channel portions, the plurality of seventh marking channel portions are equally angularly
spaced apart about the alignment point, each seventh marking channel portion providing
a first seventh marking channel abutment portion configured to guide a marking tool
for forming a mark on a workpiece at a predetermined angular location relative to
the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the fifth marking channel abutment portion of an adjacent
fifth marking channel portion in a first angular direction about the alignment point;
wherein each seventh marking channel portion includes a second seventh marking channel
abutment portion configured to guide a marking tool for forming a mark on a workpiece
at a predetermined angular location relative to the alignment point and at the first
angular offset from the predetermined angular location of a mark formed using the
sixth marking channel abutment portion of the adjacent sixth marking channel portion
in the second angular direction.
- 12. The saddle square of embodiment 4, wherein the first marking channel abutment,
first second marking channel abutment and the second second marking channel abutment
of adj acent first and second marking channel portions are aligned such that the first
marking channel abutment is angularly interposed between the first and second second
marking channel abutments.
- 13. The saddle square of embodiment 10, wherein the fifth and sixth marking channel
portions are at a same radial spacing from the alignment point.
- 14. The saddle square of embodiment 11, wherein the third and fourth marking channel
portions are at a same first radial spacing from the alignment point and the fifth
and sixth marking channel portions are at a same second radial spacing from the alignment
point, the second radial spacing being different than the first radial spacing.
- 15. The saddle square of embodiment 4, wherein: adjacent ones of the first marking
channel abutment portions of the plurality of first marking channel portions are angularly
spaced apart 10 degrees about the alignment point; adjacent ones of the first second
marking channel abutment portions of the plurality of second marking channel portions
are angularly spaced apart 10 degrees about the alignment point; and adjacent ones
of the second second marking channel abutment portions of the plurality of second
marking channel portions are angularly spaced apart 10 degrees about the alignment
point.
- 16. The saddle square of embodiment 15, wherein the continuous angle marking channel
includes at least eight first marking channel portions spanning an angle of seventy
degrees therebetween about the alignment point.
- 17. The saddle square of embodiment 1, wherein a first one of the first marking channel
portions is angularly spaced from the second workpiece abutment plane about the alignment
point by 10 degrees.
- 18. The saddle square of embodiment 1, wherein the alignment point is defined by the
intersection of an edge of the first leg and the second workpiece abutment plane.
- 19. The saddle square of embodiment 4, wherein each first marking channel portion
is radially elongated and wherein each first and second second marking channel abutment
is radially elongated.
- 20. A saddle square comprising: a first leg defining a first workpiece abutment for
abutting a first side of a workpiece, the first workpiece abutment providing a first
workpiece abutment plane; a second leg defining a second workpiece abutment for abutting
a second side of the workpiece, the second workpiece abutment providing a second workpiece
abutment plane, the second workpiece abutment plane being generally orthogonal to
the first workpiece abutment plane; the first and second legs defining an alignment
point with the first and second workpiece abutment planes extending through the alignment
point; the first leg including a continuous angle marking channel, the continuous
angle marking channel being a stepped channel including: a second level being spaced
a second radial distance from the alignment point, the second level including a plurality
of second marking channel portions, each second marking channel portion having a first
second marking channel abutment for guiding a marking tool to form a mark on a workpiece
aligned with the alignment point, adjacent ones of the first second marking channel
abutments being angularly offset from one another about the alignment point by 10
degrees, each second marking channel portion having a second second marking channel
abutment for guiding a marking tool to form a mark on a workpiece aligned with the
alignment point, adjacent ones of the second second marking channel abutments being
angularly offset from one another about the alignment point by 10 degrees, the first
and second second marking channel abutments of a corresponding second marking channel
portion being angularly spaced apart from one another; a third level being spaced
a third radial distance from the alignment point, the third radial distance being
less than the second radial distance, the third level including a plurality of third
marking channel portions configured for guiding a marking tool to form marks on a
workpiece aligned with the alignment point, adjacent ones of the third marking channel
portions being angularly offset from one another about the alignment point by 10 degrees,
the third level including a plurality of fourth marking channel portions configured
for guiding a marking tool to form marks on a workpiece aligned with the alignment
point, adjacent ones of the fourth marking channel portions being angular offset from
one another about the alignment point by 10 degrees; a fourth level being spaced a
fourth radial distance from the alignment point, the fourth radial distance being
less than the third radial distance, the fourth level including a plurality of fifth
channel portions configured for guiding a marking tool to form marks on a workpiece
aligned with the alignment point, adjacent ones of the fifth marking channel portions
being angularly offset from one another about the alignment point by 10 degrees, the
fourth level including a plurality of sixth marking channel portions configured for
guiding a marking tool to form marks on a workpiece aligned with the alignment point,
adjacent ones of the sixth marking channel portions being angular offset from one
another about the alignment point by 10 degrees; and a fifth level being spaced a
fifth radial distance from the alignment point, the fifth radial distance being less
than the fourth radial distance, the fifth level including a plurality of seventh
marking channel portions, each seventh marking channel portion having a first seventh
marking channel abutment for guiding a marking tool to form a mark on a workpiece
aligned with the alignment point, adjacent ones of the first seventh marking channel
abutments being angularly offset from one another about the alignment point by 10
degrees, each seventh marking channel portion having a second seventh marking channel
abutment for guiding a marking tool to form a mark on a workpiece aligned with the
alignment point, adjacent ones of the second seventh marking channel abutments being
angularly offset from one another about the alignment point by 10 degrees, the first
and second seventh marking channel abutments of a corresponding seventh marking channel
portion being angularly spaced apart from one another.
- 21. The saddle square of embodiment 20 wherein the continuous angle marking channel
includes a first level being spaced a first radial distance from the alignment point,
the first radial distance being greater than the second radial distance, the first
level including a plurality of first marking channel portions configured for guiding
a marking tool to form marks on a workpiece aligned with the alignment point, adjacent
ones of the first marking channel portions being angularly offset from one another
about the alignment point by 10 degrees.
- 22. The saddle square of embodiment 20, wherein: each third marking channel portion
provides a third marking channel abutment, each fourth channel portion provides a
fourth marking channel abutment, each fifth channel portion provides a fifth marking
channel abutment portion, each sixth marking channel portion provides a sixth marking
channel abutment portion; and wherein no marking channel abutment of the continuous
angle marking channel is at a same angular position about the alignment point such
that no marking channel abutment angularly aligns with another marking channel abutment
of the continuous angle marking channel.
- 23. The saddle square of embodiment 21, further including a radially extending first
discrete marking slot spaced 30 degrees from the second workpiece support plane and
angularly aligned about the alignment point with one of the first marking channel
portions and a radially extending second discrete marking slot spaced 60 degrees from
the second workpiece support plane and angularly aligned about the alignment point
with a second one of the first marking channel portions, the radially extending first
and second discrete marking slots not being connected to one another and not being
connected to the continuous angle marking channel.
- 24. The saddle square of embodiment 20, further including a plurality of radially
extending discrete marking slots, each discrete marking slot being angularly between
a first seventh marking channel abutment and a second seventh marking channel abutment
of an adjacent seventh marking channel portion.
- 25. The saddle square of embodiment 24, wherein the plurality of radially extending
discrete marking slots are radially offset from the continuous angle marking channel
and adjacent ones of the radially extending discrete marking slots are angularly spaced
apart 10 degrees about the alignment point.
- 26. The saddle square of embodiment 24, wherein at least one of the radially extending
discrete marking slots is located 45 degrees about the alignment point from the second
workpiece abutment plane.
[0042] Other aspects, objectives and advantages of the invention will become more apparent
from the following detailed description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0043] The accompanying drawings incorporated in and forming a part of the specification
illustrate several aspects of the present invention and, together with the description,
serve to explain the principles of the invention. In the drawings:
FIG. 1 is a perspective illustration of an embodiment of a marking alignment tool;
FIG. 2 is an end view of the marking alignment tool of FIG. 1;
FIG. 3 is an end view of the marking alignment tool of FIG. 1 mounted on a workpiece;
FIG. 4 is a top view of the marking alignment tool of FIG. 1;
FIG. 5 is an enlarged partial top view of the marking alignment tool of FIG. 1; and
FIG. 6 is a side view of the marking alignment tool of FIG. 1.
[0044] While the invention will be described in connection with certain preferred embodiments,
there is no intent to limit it to those embodiments. On the contrary, the intent is
to cover all alternatives, modifications and equivalents as included within the spirit
and scope of the invention as defined by the appended claims.
DETAILED DESCRIPTION OF THE INVENTION
[0045] FIG. 1 illustrates a saddle square 100 used for making many measurements and marking
many workpieces during construction activities such as woodworking. The saddle square
100 is configured to provide more accurate marking of a workpiece and that addresses
the parallax issue outlined above.
[0046] With additional reference to FIG. 2, the saddle square 100 includes a first leg 102
and a second leg 104 that extends orthogonally to first leg 102. The first leg 102
provides a first workpiece abutment 106 that provides a first workpiece abutment plane
109. The second leg 104 provides a second workpiece abutment 108 that provides a second
workpiece abutment plane 111. The first and second workpiece abutment planes 109,
111 are preferably orthogonal to one another.
[0047] The first and second workpiece abutments 106, 108 are configured to locate the saddle
square 100 adjacent an edge 112 of a workpiece 114 defined by orthogonal sides 116,
118.
[0048] The saddle square 100 has a plurality of different measurement and marking sections
that may be used by a user to mark the workpiece 114 such as for locations where the
workpiece 114 is to be cut, drilled or otherwise manipulate the workpiece.
[0049] One particular measurement section is used for marking angled lines on the surface
of one of the sides 116, 118 of the workpiece 114. In particular, the first leg 102
includes a first angle marking channel 120. This angle marking channel 120 can be
used for locating an angled line to be marked on side 116 at a desired angle relative
to side 118 that extends through a desired point on edge 112 at the intersection of
sides 116, 118.
[0050] In particular, the angle marking channel includes a plurality of marking channel
portions that are angularly spaced about alignment point 122 for forming marks on
side 116.
[0051] The alignment point 122, in this example, is aligned with an edge of the first leg
102 that is generally orthogonal to the first workpiece abutment plane 111.
[0052] The angle marking channel is a continuous angle marking channel 120 such that the
single channel has a plurality of marking abutments for guiding a marking tool such
as a pencil or scribe used to mark an angular location that is offset from side 118
(i.e. the second workpiece abutment plane 111) a desired angle and that passes through
a desired point.
[0053] In this example, the continuous angle marking channel 120 includes a plurality of
steps that are angular offset from one another that define individual guide regions
for guiding the marking tool.
[0054] In the illustrated example, due to the stepped configuration, the continuous angle
marking channel 120 may be viewed as having numerous levels. In this example, the
continuous angle marking channel 120 includes a first level 130, a second level 132,
a third level 134, a fourth level 136 and a fifth level 138.
[0055] The first level 130 includes a plurality of first marking channel portions 140 configured
for guiding a marking tool to form marks on side 116 of workpiece 114 radially aligned
with the alignment point 122. The first marking channel portions 140 are equally angularly
spaced apart about alignment point 122. In this example, adjacent ones of the first
marking channel portions 140 are angularly offset from one another about the alignment
point 122 by ten degrees (10°). Further, the first one of the first marking channel
portions 140 is located ten degrees from the second workpiece abutment plane 111.
[0056] Thus, if a user wants to form a mark about a desired location on the workpiece that
is a multiple of 10 degrees offset from side 118 about a desired point, the user would
align the alignment point 122 with the desired point located at the edge 112 on the
workpiece 114 and then use the appropriate first marking channel portion 140 to form
a reference mark. Thereafter, if desired, the user could align a straight edge with
the desired point on edge 112 and the newly formed mark and mark a continuous line
between the desired point and the newly marked reference mark. The resulting line
would be at the desired angle relative to side 118 and pass through the desired point
on edge 112.
[0057] The first level 130 and associated first marking channel portions 140 are spaced
a first radial distance R1 from the alignment point 122. This distance R1 may be measured
to a center point, a radially innermost extent, or a radially outer most extent of
the first marking channel portions 140. In the illustrated example, R1 is measured
to a radial center point thereof.
[0058] The first marking channel portions 140 include at least one, and two in this example,
first marking channel abutments 142A, 142B that are radially elongated and that are
used to guide the marking tool to form the mark on side 116 of the workpiece 114.
[0059] In this example, the spacing between first marking channel abutments 142A, 142B,
identified as T1, is substantially equal to the dimension of the marking tool. In
one example, the spacing T1 is equal to a 0.9 mm pencil, but other dimensions of a
marking tool are contemplated.
[0060] The first marking channel abutments 142A are all equally angularly spaced about alignment
point 122 and are offset 10 degrees from one another in this example. Similarly, the
first marking channel abutments 142B are all equally angularly spaced about alignment
point 122 and are offset 10 degrees from one another in this example.
[0061] The second level 132 is spaced a second radial distance R2 from the alignment point
122. The second radial distance R2 is less than the first radial distance R1.
[0062] The second level 132 includes a plurality of second marking channel portions 144.
[0063] Each second marking channel portion 144 has a first second marking channel abutment
portion 146A for guiding a marking tool to form a mark on workpiece 114 radially aligned
with the alignment point 122. Adjacent ones of the first second marking channel abutments
146A are angularly offset from one another about the alignment point by 10 degrees.
The first second marking channel abutments 146A are angularly offset for forming a
desired mark 1 degree offset in a first angular direction 150 (illustrated by arrow
150) about alignment point 122 from the location a desired mark would be formed using
the adjacent first marking channel portion 140.
[0064] Each second marking channel portion 144 has a second second marking channel abutment
146B for guiding a marking tool to form a mark on workpiece 114 radially aligned with
the alignment point 122. Adjacent ones of the second second marking channel abutments
146B are angularly offset from one another about the alignment point 122 by 10 degrees.
The second second marking channel abutments 146B are angularly offset for forming
a desired mark 1 degree offset in a second angular direction 152 (illustrated by arrow
152) about alignment point 122 from the location a desired mark would be formed using
the adjacent first marking channel portion 140.
[0065] The first and second second marking channel abutments 146A, 146B of a corresponding
second marking channel portion 144 are angularly spaced apart from one another to
form marks on workpiece 114 that are substantially centered two degrees apart from
one another about alignment point 122. For example, if the second marking channel
portion 140 is adjacent the first marking channel portion 140 that is 20 degrees offset
from second workpiece abutment plane 111, the first second marking channel abutment
146A would be used for marking at 19 degrees offset from second workpiece abutment
plane 111 and the second second marking channel abutment 146B would be used for marking
at 21 degrees offset from second workpiece abutment plane 111.
[0066] The first and second second marking channel abutments 146A, 146B are generally spaced
a distance T2 that is double that of distance T1.
[0067] The third level 134 is spaced a third radial distance F3 from the alignment point
122. The third radial distance R3 is less than the second radial distance R2.
[0068] The third level 134 includes a plurality of third marking channel portions 148 configured
for guiding a marking tool to form marks on workpiece 114 radially aligned with the
alignment point 122. The plurality of third marking channel portions 148 are equally
angularly spaced apart. Adjacent ones of the third marking channel portions 148 are
angularly offset from one another about the alignment point 122 by 10 degrees.
[0069] Each third marking channel portion 148 includes at least one (and two in the illustrated
example) third marking channel abutment 158A, 158B for guiding the marking tool at
the desired angular location/orientation relative to the second workpiece abutment
plane 111.
[0070] Each third marking channel portion 148 is angularly offset from the second marking
channel portion 144 in the first angular direction 150 such that a mark formed by
the third marking channel portion 148 will be angularly offset from a mark formed
by the first second marking channel abutment 146A of the adjacent second marking channel
portion 144 by 1 degree in the first angular direction 150.
[0071] The third level 134 also includes a plurality of fourth marking channel portions
153 configured for guiding a marking tool to form marks on a workpiece radially aligned
with the alignment point 122. The plurality of fourth marking channel portions 153
are equally angularly spaced apart about alignment point 122. Adjacent ones of the
fourth marking channel portions 153 are angular offset from one another about the
alignment point 122 by 10 degrees.
[0072] Each fourth marking channel portion 153 includes at least one (and two in the illustrated
example) third marking channel abutment 154A, 154B for guiding the marking tool at
the desired angular location/orientation relative to the second workpiece abutment
plane 111.
[0073] Each fourth marking channel portion 153 is angularly offset from the second marking
channel portion 144 in the second angular direction 152 such that a mark formed by
the fourth marking channel portion 153 will be angularly offset from a mark formed
by the second second marking channel abutment 146B of the adjacent second marking
channel portion 144 by 1 degree in the second angular direction 152.
[0074] The third and fourth marking channel portions 148, 153 are thus at a same radial
spacing R3 from the alignment point 122 but provide different predetermined locations
for forming markings on the workpiece 114.
[0075] The third and fourth marking channel portions 148, 153 are angularly separated from
one another by portions of the first leg 102.
[0076] The fourth level 136 is spaced a fourth radial distance R4 from the alignment point
122. The fourth radial distance R4 is less than the third radial distance R3.
[0077] The fourth level 136 including a plurality of fifth channel portions 160 configured
for guiding a marking tool to form marks on the workpiece 114 radially aligned with
the alignment point 122. The plurality of fifth marking channel portions 160 are equally
angularly spaced apart. Adjacent ones of the fifth marking channel portions 160 are
angularly offset from one another about the alignment point 122 by 10 degrees.
[0078] Each fifth marking channel portion 160 includes at least one (and two in the illustrated
example) fifth marking channel abutment 162A, 162B for guiding the marking tool at
the desired angular location/orientation relative to the second workpiece abutment
plane 111.
[0079] Each fifth marking channel portion 160 is angularly offset from the adjacent third
marking channel portion 148 in the first angular direction 150 such that a mark formed
by the fifth marking channel portion 160 will be angularly offset from a mark formed
by the third marking channel portion 148 by 1 degree in the first angular direction
150.
[0080] The fourth level 136 including a plurality of sixth channel portions 164 configured
for guiding a marking tool to form marks on the workpiece 114 radially aligned with
the alignment point 122. The plurality of sixth marking channel portions 164 are equally
angularly spaced apart. Adjacent ones of the sixth marking channel portions 164 are
angularly offset from one another about the alignment point 122 by 10 degrees.
[0081] Each sixth marking channel portion 164 includes at least one (and two in the illustrated
example) sixth marking channel abutment 166A, 166B for guiding the marking tool at
the desired angular location/orientation relative to the second workpiece abutment
plane 111.
[0082] Each sixth marking channel portion 164 is angularly offset from the adjacent fourth
marking channel portion 153 in the second angular direction 152 such that a mark formed
by the sixth marking channel portion 164 will be angularly offset from a mark formed
by the fourth marking channel portion 153 by 1 degree in the second angular direction
152.
[0083] The fifth and sixth marking channel portions 160, 164 are thus at a same radial spacing
R4 from the alignment point 122 but provide different predetermined locations for
forming markings on the workpiece 114.
[0084] The fifth and sixth marking channel portions 160, 164 are angularly separated from
one another by portions of the first leg 102.
[0085] The fifth level is spaced a fifth radial distance R5 from the alignment point 122.
The fifth radial distance R5 is less than the fourth radial distance R4.
[0086] The fifth level includes a plurality of seventh marking channel portions 170, which
are similar to the second marking channel portions 144 described above.
[0087] Each seventh marking channel portion 170 has a first seventh marking channel abutment
172A for guiding a marking tool to form a mark on the workpiece 114 radially aligned
with the alignment point 122. Adjacent ones of the first seventh marking channel abutments
172A are angularly offset from one another about the alignment point 122 by 10 degrees.
The first seventh marking channel abutments 172A are angularly offset from the adjacent
fifth marking channel portion 160 for forming a desired mark 1 degree offset in the
first angular direction 150 about the alignment point 122 from the location a desired
mark would be formed using the adjacent fifth marking channel portion 160.
[0088] Each seventh marking channel portion has a second seventh marking channel abutment
172B for guiding a marking tool to form a mark on the workpiece 114 radially aligned
with the alignment point 122. Adjacent ones of the second seventh marking channel
abutments are angularly offset from one another about the alignment point by 10 degrees.
The second seventh marking channel abutments 172B are angularly offset from the adjacent
sixth marking channel portion 164 for forming a desired mark 1 degree offset in the
second angular direction 152 about the alignment point 122 from the location a desired
mark would be formed using the adjacent sixth marking channel portion 164.
[0089] The first and second seventh marking channel abutments 172A, 172B of a corresponding
seventh marking channel portion 170 being angularly spaced apart from one another.
[0090] The marking channel 120 is a continuous channel such that there are no breaks in
the channel such that the first, second third, fourth, fifth, sixth and seventh marking
channel portions 140, 144, 148, 153, 160, 164, and 170 are all part of one continuous
channel.
[0091] In one instance, a marking tool can transition between adjacent first marking channel
portions 140 by passing through intervening second, third, fourth, fifth, sixth, seventh
and second marking channel portions without removing the marking tool.
[0092] The continuous marking channel 120 allows for a user to make marks on the workpiece
at predetermined angular at predetermined angular offsets from the second workpiece
abutment plane 111.
[0093] In this example, no marking channel abutment of the continuous angle marking channel
120 is at a same angular position about the alignment point 122 relative to the second
workpiece abutment plane 111 such that no marking channel abutment angularly aligns
with another marking channel abutment of the continuous angle marking channel 120.
[0094] In this example, in most instances, each first marking channel portion 140 is connected
to a corresponding second marking channel portion 144. In most instances, each second
marking channel portion 144 is connected to a corresponding third marking channel
portion 148 and a corresponding fourth marking channel portion 153. In most instances,
each third marking channel portion 148 is connected to a corresponding fifth marking
channel portion 160. In most instances, each fourth marking channel portion 153 is
connected to a corresponding sixth marking channel portion 164. In most instances,
each fifth marking channel portion 160 is connected to a corresponding seventh marking
channel portion 170. In most instances, each sixth marking channel portion 164 is
connected to a corresponding seventh marking channel portion 170. In most instances,
each seventh marking channel portion 170 is connected to a corresponding fifth marking
channel portion 160 and a corresponding sixth marking channel portion 164.
[0095] However, as illustrated, the corresponding connected marking channel portions are
angularly offset so as to provide for different predetermined angular marking locations.
[0096] Preferably, the marking channel abutments are elongated relative to the dimension
of the intended marking tool so as to allow for a radially elongated mark to be formed.
[0097] While generally illustrated as having 10 degree increments, sets of individual marking
channels could have different angular spacing. Further, while levels 1-5 are radially
stepped in five different radial positions, more or fewer levels could be implements.
[0098] While not illustrated, in some embodiments, a sixth level may be provided. The sixth
level would be similar to the first level 130 and radially inward of the fifth level
and associated seventh marking channel portions 170. Such a level would have eight
marking channel portions that would be similar to the first marking channel portions
140. These marking channel portions would be used for forming desired marks at each
5 degree increment (5°, 15°, 25°, 35°, 45°, 55°, 65°, 75°) relative to the second
workpiece abutment plane 111 while the first marking channel portions 140, in this
example, are used to form desired marks at each 10 degree increment (e.g. 10°, 20°,
30°, 40°, 50°, 60°, 70°, 80°) relative to the second workpiece abutment plane 111.
[0099] Similarly, the first level 130 could be removed in some embodiments and only the
second-fifth levels 132, 134, 136, 138, may be implemented where the first and hypothetical
sixth level are provided by discrete marking slots. However, this arrangement allows
for 1 degree increment markings to be made with predetermined abutments.
[0100] However, in this example, the 5 degree increment guide features are provided by discrete
marking slots 176 that are radially extending and that are aligned with the alignment
point 122. Here, each discrete marking slot 176 is positioned angularly between the
first and second seventh marking channel abutments 172A, 172B of the adjacent most
seventh marking channel portion 170. These discrete marking slots 176 are equally
angularly spaced about alignment point 122 and adjacent discrete marking slots 176
are spaced 10 degrees apart about alignment point 122.
[0101] The illustrated example also includes three additional discrete marking slots 184,
186, 188 that are aligned at 30°, 45°, and 60° offset from the second workpiece abutment
plane 111 as these angular offsets are used more regularly than other angular offsets.
[0102] In this example, these three radially elongated marking slots 184, 186, 188 are,
optionally, radially longer than slots 176 to illustrate their more typical use. In
this example, the second leg 104 includes a second continuous angle marking channel
220 that is substantially identical to the first continuous angle marking channel
120 but that is used for marking at angular positions offset from the first workpiece
abutment plane 109.
[0103] All references, including publications, patent applications, and patents cited herein
are hereby incorporated by reference to the same extent as if each reference were
individually and specifically indicated to be incorporated by reference and were set
forth in its entirety herein.
[0104] The use of the terms "a" and "an" and "the" and similar referents in the context
of describing the invention (especially in the context of the following claims) is
to be construed to cover both the singular and the plural, unless otherwise indicated
herein or clearly contradicted by context. The terms "comprising," "having," "including,"
and "containing" are to be construed as open-ended terms (i.e., meaning "including,
but not limited to,") unless otherwise noted. Recitation of ranges of values herein
are merely intended to serve as a shorthand method of referring individually to each
separate value falling within the range, unless otherwise indicated herein, and each
separate value is incorporated into the specification as if it were individually recited
herein. All methods described herein can be performed in any suitable order unless
otherwise indicated herein or otherwise clearly contradicted by context. The use of
any and all examples, or exemplary language (e.g., "such as") provided herein, is
intended merely to better illuminate the invention and does not pose a limitation
on the scope of the invention unless otherwise claimed. No language in the specification
should be construed as indicating any non-claimed element as essential to the practice
of the invention.
[0105] Preferred embodiments of this invention are described herein, including the best
mode known to the inventors for carrying out the invention. Variations of those preferred
embodiments may become apparent to those of ordinary skill in the art upon reading
the foregoing description. The inventors expect skilled artisans to employ such variations
as appropriate, and the inventors intend for the invention to be practiced otherwise
than as specifically described herein. Accordingly, this invention includes all modifications
and equivalents of the subject matter recited in the claims appended hereto as permitted
by applicable law. Moreover, any combination of the above-described elements in all
possible variations thereof is encompassed by the invention unless otherwise indicated
herein or otherwise clearly contradicted by context.
1. A saddle square comprising:
a first leg defining a first workpiece abutment plane for abutting a first side of
a workpiece;
a second leg defining a second workpiece abutment plane for abutting a second side
of the workpiece, the second workpiece abutment plane being generally orthogonal to
the first workpiece abutment plane;
the first and second legs defining an alignment point with the first and second workpiece
abutment planes passing through the alignment point;
a continuous angle marking channel formed in the first leg, the continuous angle marking
channel including:
a plurality of first marking channel portions that are equally angularly spaced about
the alignment point, each first marking channel portion providing a first marking
channel abutment portion configured to guide a marking tool for forming a mark on
a workpiece at a predetermined angular location relative to the alignment point.
2. The saddle square of claim 1, wherein each of the first marking channel portions are
spaced radially outward from the alignment point a same distance.
3. The saddle square of claim 1, wherein the continuous angle marking channel includes:
a plurality of second marking channel portions that are radially spaced from the plurality
of first marking channel portions, the plurality of second marking channel portions
are equally angularly spaced apart about the alignment point, each second marking
channel portion providing a first second marking channel abutment portion configured
to guide a marking tool for forming a mark on a workpiece at a predetermined angular
location relative to the alignment point at a first angular offset from the predetermined
angular location of the first marking channel portion of an adjacent first marking
channel portion in a first angular direction about the alignment point,
in particular wherein each second marking channel portion includes a second second
marking channel abutment portion configured to guide a marking tool for forming a
mark on a workpiece at a predetermined angular location relative to the alignment
point at the first angular offset from the predetermined angular location of the first
marking channel portion of the adjacent first marking channel portion in a second
angular direction, opposite the first angular direction about the alignment point,
optionally, wherein in particular for each second marking channel portion, the first
and second second marking channel abutments face one another and form opposed sides
of the second marking channel portion,
optionally, wherein in particular the first marking channel abutment, first second
marking channel abutment and the second second marking channel abutment of adj acent
first and second marking channel portions are aligned such that the first marking
channel abutment is angularly interposed between the first and second second marking
channel abutments, optionally, wherein in particular each first marking channel portion
is radially elongated and wherein each first and second second marking channel abutment
is radially elongated.
4. The saddle square of claim 1, wherein the continuous angle marking channel is continuous
such that a marking tool can travel into each of the plurality of first marking channel
portions without removing the marking tool from the continuous angle marking channel.
5. The saddle square of claim 3, wherein the continuous angle marking channel includes:
a plurality of third marking channel portions that are radially spaced from the plurality
of second marking channel portions, the plurality of third marking channel portions
are equally angularly spaced apart about the alignment point, each third marking channel
portion providing a third marking channel abutment portion configured to guide a marking
tool for forming a mark on a workpiece at a predetermined angular location relative
to the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the first second abutment portion of the second marking
channel portion of an adjacent second marking channel portion in the first angular
direction about the alignment point.
6. The saddle square of claim 5, wherein the continuous angle marking channel includes:
a plurality of fourth marking channel portions that are radially spaced from the plurality
of second marking channel portions, the plurality of fourth marking channel portions
are equally angularly spaced apart about the alignment point, each fourth marking
channel portion providing a fourth marking channel abutment portion configured to
guide a marking tool for forming a mark on a workpiece at a predetermined angular
location relative to the alignment point and at the first angular offset from the
predetermined angular location of a mark formed using the second second abutment portion
of the second marking channel portion of an adjacent second marking channel portion
in the second angular direction about the alignment point,
in particular, wherein the plurality of fourth marking channel portions are at a same
radial spacing from the alignment point as the plurality of third marking channel
portions.
7. The saddle square of claim 6, wherein the continuous angle marking channel includes:
a plurality of fifth marking channel portions that are radially spaced from the plurality
of third marking channel portions, the plurality of fifth marking channel portions
are equally angularly spaced apart about the alignment point, each fifth marking channel
portion providing a fifth marking channel abutment portion configured to guide a marking
tool for forming a mark on a workpiece at a predetermined angular location relative
to the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the third marking channel abutment portion of an adjacent
third marking channel portion in the first angular direction about the alignment point;
a plurality of sixth marking channel portions that are radially spaced from the plurality
of fourth marking channel portions, the plurality of sixth marking channel portions
are equally angularly spaced apart about the alignment point, each sixth marking channel
portion providing a sixth marking channel abutment portion configured to guide a marking
tool for forming a mark on a workpiece at a predetermined angular location relative
to the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the fourth marking channel abutment portion of an
adjacent fourth marking channel portion in the second angular direction about the
alignment point,
in particular, wherein the fifth and sixth marking channel portions are at a same
radial spacing from the alignment point.
8. The saddle square of claim 7, wherein the continuous angle marking channel includes:
a plurality of seventh marking channel portions that are radially spaced from the
plurality of fifth marking channel portions and the plurality of sixth marking channel
portions, the plurality of seventh marking channel portions are equally angularly
spaced apart about the alignment point, each seventh marking channel portion providing
a first seventh marking channel abutment portion configured to guide a marking tool
for forming a mark on a workpiece at a predetermined angular location relative to
the alignment point and at the first angular offset from the predetermined angular
location of a mark formed using the fifth marking channel abutment portion of an adjacent
fifth marking channel portion in a first angular direction about the alignment point;
wherein each seventh marking channel portion includes a second seventh marking channel
abutment portion configured to guide a marking tool for forming a mark on a workpiece
at a predetermined angular location relative to the alignment point and at the first
angular offset from the predetermined angular location of a mark formed using the
sixth marking channel abutment portion of the adjacent sixth marking channel portion
in the second angular direction,
in particular, wherein the third and fourth marking channel portions are at a same
first radial spacing from the alignment point and the fifth and sixth marking channel
portions are at a same second radial spacing from the alignment point, the second
radial spacing being different than the first radial spacing.
9. The saddle square of claim 3, wherein:
adjacent ones of the first marking channel abutment portions of the plurality of first
marking channel portions are angularly spaced apart 10 degrees about the alignment
point;
adjacent ones of the first second marking channel abutment portions of the plurality
of second marking channel portions are angularly spaced apart 10 degrees about the
alignment point; and
adjacent ones of the second second marking channel abutment portions of the plurality
of second marking channel portions are angularly spaced apart 10 degrees about the
alignment point,
in particular, wherein the continuous angle marking channel includes at least eight
first marking channel portions spanning an angle of seventy degrees therebetween about
the alignment point.
10. The saddle square of claim 1, wherein a first one of the first marking channel portions
is angularly spaced from the second workpiece abutment plane about the alignment point
by 10 degrees.
11. The saddle square of claim 1, wherein the alignment point is defined by the intersection
of an edge of the first leg and the second workpiece abutment plane.
12. A saddle square comprising:
a first leg defining a first workpiece abutment for abutting a first side of a workpiece,
the first workpiece abutment providing a first workpiece abutment plane;
a second leg defining a second workpiece abutment for abutting a second side of the
workpiece, the second workpiece abutment providing a second workpiece abutment plane,
the second workpiece abutment plane being generally orthogonal to the first workpiece
abutment plane;
the first and second legs defining an alignment point with the first and second workpiece
abutment planes extending through the alignment point;
the first leg including a continuous angle marking channel, the continuous angle marking
channel being a stepped channel including:
a second level being spaced a second radial distance from the alignment point, the
second level including a plurality of second marking channel portions, each second
marking channel portion having a first second marking channel abutment for guiding
a marking tool to form a mark on a workpiece aligned with the alignment point, adjacent
ones of the first second marking channel abutments being angularly offset from one
another about the alignment point by 10 degrees, each second marking channel portion
having a second second marking channel abutment for guiding a marking tool to form
a mark on a workpiece aligned with the alignment point, adjacent ones of the second
second marking channel abutments being angularly offset from one another about the
alignment point by 10 degrees, the first and second second marking channel abutments
of a corresponding second marking channel portion being angularly spaced apart from
one another;
a third level being spaced a third radial distance from the alignment point, the third
radial distance being less than the second radial distance, the third level including
a plurality of third marking channel portions configured for guiding a marking tool
to form marks on a workpiece aligned with the alignment point, adjacent ones of the
third marking channel portions being angularly offset from one another about the alignment
point by 10 degrees, the third level including a plurality of fourth marking channel
portions configured for guiding a marking tool to form marks on a workpiece aligned
with the alignment point, adjacent ones of the fourth marking channel portions being
angular offset from one another about the alignment point by 10 degrees;
a fourth level being spaced a fourth radial distance from the alignment point, the
fourth radial distance being less than the third radial distance, the fourth level
including a plurality of fifth channel portions configured for guiding a marking tool
to form marks on a workpiece aligned with the alignment point, adjacent ones of the
fifth marking channel portions being angularly offset from one another about the alignment
point by 10 degrees, the fourth level including a plurality of sixth marking channel
portions configured for guiding a marking tool to form marks on a workpiece aligned
with the alignment point, adjacent ones of the sixth marking channel portions being
angular offset from one another about the alignment point by 10 degrees; and
a fifth level being spaced a fifth radial distance from the alignment point, the fifth
radial distance being less than the fourth radial distance, the fifth level including
a plurality of seventh marking channel portions, each seventh marking channel portion
having a first seventh marking channel abutment for guiding a marking tool to form
a mark on a workpiece aligned with the alignment point, adjacent ones of the first
seventh marking channel abutments being angularly offset from one another about the
alignment point by 10 degrees, each seventh marking channel portion having a second
seventh marking channel abutment for guiding a marking tool to form a mark on a workpiece
aligned with the alignment point, adjacent ones of the second seventh marking channel
abutments being angularly offset from one another about the alignment point by 10
degrees, the first and second seventh marking channel abutments of a corresponding
seventh marking channel portion being angularly spaced apart from one another.
13. The saddle square of claim 12 wherein the continuous angle marking channel includes
a first level being spaced a first radial distance from the alignment point, the first
radial distance being greater than the second radial distance, the first level including
a plurality of first marking channel portions configured for guiding a marking tool
to form marks on a workpiece aligned with the alignment point, adjacent ones of the
first marking channel portions being angularly offset from one another about the alignment
point by 10 degrees,
optionally in particular, further including a radially extending first discrete marking
slot spaced 30 degrees from the second workpiece support plane and angularly aligned
about the alignment point with one of the first marking channel portions and a radially
extending second discrete marking slot spaced 60 degrees from the second workpiece
support plane and angularly aligned about the alignment point with a second one of
the first marking channel portions, the radially extending first and second discrete
marking slots not being connected to one another and not being connected to the continuous
angle marking channel.
14. The saddle square of claim 12, wherein:
each third marking channel portion provides a third marking channel abutment, each
fourth channel portion provides a fourth marking channel abutment, each fifth channel
portion provides a fifth marking channel abutment portion, each sixth marking channel
portion provides a sixth marking channel abutment portion; and
wherein no marking channel abutment of the continuous angle marking channel is at
a same angular position about the alignment point such that no marking channel abutment
angularly aligns with another marking channel abutment of the continuous angle marking
channel.
15. The saddle square of claim 12, further including a plurality of radially extending
discrete marking slots, each discrete marking slot being angularly between a first
seventh marking channel abutment and a second seventh marking channel abutment of
an adjacent seventh marking channel portion,
optionally, wherein in particular the plurality of radially extending discrete marking
slots are radially offset from the continuous angle marking channel and adjacent ones
of the radially extending discrete marking slots are angularly spaced apart 10 degrees
about the alignment point,
optionally, wherein in particular at least one of the radially extending discrete
marking slots is located 45 degrees about the alignment point from the second workpiece
abutment plane.