FIELD
[0001] The present disclosure relates to amusement rides, and more particularly relates
to free-swinging amusement rides.
BACKGROUND
[0002] Swinging amusement rides are entertaining and provide exciting thrills to passengers.
Often, swinging amusement rides have a support or an anchor point to which a swinging
line is coupled. For some conventional swinging amusement rides that span large gaps,
the support can be a cable that extends in a horizontal direction and is elevated
a distance above the ground. In such configurations, the swinging motion is often
in a direction that is perpendicular to the horizontal direction of the support. In
other words, most conventional swinging systems have a bar extending horizontally
that is supported in the elevated position by mounting structures. A swing line is
attached to the bar and the swinging direction is orthogonal to the direction of the
bar.
[0003] However, in certain situations it is difficult to efficiently usher passengers through
a swinging amusement ride system. For example, after a ride is completed and the passenger(s)
has substantially stopped swinging, ride attendants must perform the loading/unloading
operations at the bottom of the swinging arc before returning the passenger carriage
to a launch point. Returning the passenger carriage to the launch point can be difficult
and time consuming. For example, since the swinging motion occurs in a direction perpendicular
to the direction of the support bar, conventional amusement systems must have mounting
structures at each end of the support and a launching structure at a third elevated
point separate from the two mounting structures. Thus, conventional swinging amusement
ride systems generally require three separate elevated points.
SUMMARY
[0004] From the foregoing discussion, it is apparent that a need exists for an amusement
ride system that more effectively ushers passengers through a ride and provides passengers
with a high thrill factor. Beneficially, such a system would allow passengers to efficiently
be loaded, swing across large gaps or chasms, and be unloaded. The subject matter
of the present disclosure has been developed in response to the present state of the
art, and in particular, in response to the problems and needs in the art that have
not yet been fully solved by currently available amusement ride systems. Accordingly,
the subject matter of the present disclosure has been developed to provide an amusement
ride system that may overcome many or all of the above-discussed or other shortcomings
in the art. An amusement ride system is disclosed. One embodiment of the amusement
ride system includes a support subsystem that includes a loading location, a first
location, and a second location that are all elevated a distance above the ground
and that are spaced apart in a triangular formation. The support subsystem further
includes a first anchor cable extending between the loading location and the first
location and a second anchor cable extending between the loading location and the
second location. The amusement ride system further includes a first trolley movably
attached to the first anchor cable and a second trolley movably attached to the second
anchor cable. Still further, the amusement ride system includes a trolley actuation
subsystem that moves the first trolley and the second trolley along the length of
the first anchor cable and the second anchor, respectively, and a swing subsystem
that includes a passenger carriage. The swing subsystem includes a first swing line
coupled to the passenger carriage and pivotally engaged to the first trolley and a
second swing line coupled to the passenger carriage and pivotally engaged to the second
trolley.
[0005] In one implementation, the first location and the second location are different locations
on a single interconnected tower structure. In another implementation, the amusement
ride system further includes a passenger loading subsystem. The passenger loading
subsystem includes a platform and a securing mechanism. The platform temporarily engages
the passenger carriage while loading and unloading passengers and the securing mechanism
temporarily secures the passenger carriage while loading and unloading passengers.
According to one implementation, the platform includes moveable floor panels that
can be retracted or rotated to a launch position and the passenger carriage can be
positioned so that passengers look substantially straight down to the ground when
the floor panels are retracted or rotated to the launch position.
[0006] According to one implementation, the passenger carriage is a first passenger carriage,
and the amusement ride further includes a passenger loading subsystem. The passenger
loading subsystem includes a tower and a second passenger carriage that is movably
coupled to the tower and that at least one of rapidly ascends and rapidly descends
translationally along the tower to position a passenger proximate the first passenger
carriage.
[0007] In another implementation, the swing subsystem further includes a swing line drive
motor for extending and retracting the first swing line and the second swing line.
The amusement ride system may further include a swing line tension subsystem to which
the first swing line and the second swing line are anchored. The swing line tension
subsystem controls slack and tension in the first swing line and the second swing
line. According to one implementation, the swing line tension subsystem includes a
swing line drive motor for extending and retracting the first swing line and the second
swing line. The swing line tension subsystem may include shock absorber elements and
the first anchor cable and the second cable may each include two cables tensioned
to 5,000 pounds. In one implementation, the passenger carriage has a seat for positioning
a passenger in a seated position and the seat is a tandem seat for positioning two
passengers side-by-side in the seating position.
[0008] The present disclosure also relates to another embodiment of an amusement ride system.
The amusement ride system includes a support subsystem that has a loading location,
a first location, and a second location that are all elevated a distance above the
ground and that are spaced apart in a triangular formation. The support subsystem
further includes a first anchor cable extending between the loading location and the
first location and a second anchor cable extending between the loading location and
the second location. The amusement ride system further includes a first trolley movably
attached to the first anchor cable and a second trolley movably attached to the second
anchor cable. The amusement ride system further includes a trolley actuation subsystem
that moves the first trolley and the second trolley along the length of the first
anchor cable and the second anchor, respectively. Still further, the system includes
a swing subsystem that includes a passenger carriage, a first swing line coupled to
the passenger carriage and pivotally engaged to the first trolley, and a second swing
line coupled to the passenger carriage and pivotally engaged to the second trolley.
The system may also include a swing line tension subsystem to which the first swing
line and the second swing line are anchored. The swing line tension subsystem controls
slack and tension in the first swing line and the second swing line. The system also
includes a passenger loading subsystem that includes a platform and a securing mechanism,
wherein the platform temporarily supports passengers and ride attendants while loading
and unloading passengers, and the securing mechanism temporarily secures the passenger
carriage while loading and unloading passengers.
[0009] In one implementation, the swing line tension subsystem includes a single drive motor
that controls extension and retraction of both the first swing line and the second
swing line.
[0010] The present disclosure also relates to one embodiment of an amusement ride method.
The method includes loading a passenger into a passenger carriage at a loading location.
A first swing line and a second swing line are interconnected between the passenger
carriage and a first trolley and a second trolley, respectively, with the first trolley
and the second trolley being movably attached to a first anchor cable and a second
anchor cable, respectively. The method also includes moving the first trolley and
the second trolley away from the loading location and positioning the passenger carriage
into a launching position at the loading location. The method further includes releasing
the passenger carriage from the loading location to swing and then moving the first
trolley and the second trolley towards the loading location to unload the passenger
from the passenger carriage.
[0011] According to one implementation, positioning the passenger carriage into a launching
position includes adjusting one or more of slack and tension in the first swing line
and the second swing line. According to another implementation, moving the passenger
carriage towards the loading location to unload the passenger from the passenger carriage
includes adjusting one or more of slack and tension in the first swing line and the
second swing line. In one implementation, a first length of the first swing line between
the passenger carriage and the first trolley and a second length of the second swing
line between the passenger carriage and the second trolley are elongated as the first
trolley and the second trolley move away from the loading location. According to the
same implementation, the first length and the second length are shortened as the first
trolley and the second trolley move toward the loading location.
[0012] Reference throughout this specification to features, advantages, or similar language
does not imply that all of the features and advantages that may be realized with the
subject matter of the present disclosure should be or are in any single embodiment
of the subject matter. Rather, language referring to the features and advantages is
understood to mean that a specific feature, advantage, or characteristic described
in connection with an embodiment is included in at least one embodiment of the subject
matter of the present disclosure. Thus, discussion of the features and advantages,
and similar language, throughout this specification may, but do not necessarily, refer
to the same embodiment.
[0013] The described features, structures, advantages, and/or characteristics of the subject
matter of the present disclosure may be combined in any suitable manner in one or
more embodiments and/or implementations. In the following description, numerous specific
details are provided to impart a thorough understanding of embodiments of the subject
matter of the present disclosure. One skilled in the relevant art will recognize that
the subject matter of the present disclosure may be practiced without one or more
of the specific features, details, components, materials, and/or methods of a particular
embodiment or implementation. In other instances, additional features and advantages
may be recognized in certain embodiments and/or implementations that may not be present
in all embodiments or implementations. Further, in some instances, well-known structures,
materials, or operations are not shown or described in detail to avoid obscuring aspects
of the subject matter of the present disclosure. The features and advantages of the
subject matter of the present disclosure will become more fully apparent from the
following description and appended claims, or may be learned by the practice of the
subject matter as set forth hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order that the advantages of the subject matter of the present disclosure will
be readily understood, a more particular description of the subject matter will be
rendered by reference to specific embodiments that are illustrated in the appended
drawings. Understanding that these drawings depict only typical embodiments of the
subject matter of the present disclosure and are not therefore to be considered to
be limiting of its scope, the subject matter will be described and explained with
additional specificity and detail through the use of the accompanying drawings, in
which:
Figure 1A depicts one embodiment of an amusement ride system for swinging a passenger
on a swing line;
Figure 1B depicts another embodiment of an amusement ride system for swinging a passenger
on a swing line;
Figure 2 depicts one embodiment of an amusement ride system for swinging a passenger
on a swing line with the swing line affixed to a first anchored segment of a support
component;
Figure 3 depicts one embodiment of an amusement ride system for swinging a passenger
on a swing line with the passenger in a loading position;
Figure 4 depicts one embodiment of an amusement ride system for swinging a passenger
on a swing line with the swing line affixed to a moveable trolley;
Figure 5 depicts one embodiment of an amusement ride system for swinging a passenger
on a swing line with the swing line affixed to a medial segment of a support component;
Figure 6 depicts one embodiment of a tower and a platform for an amusement ride system;
Figure 7 depicts one embodiment of a platform with a passenger carriage in a launching
position;
Figure 8 depicts one embodiment of a passenger loading subsystem; and
Figure 9 is a schematic flow chart diagram of a swing amusement ride method, according
to one embodiment;
Figure 10 depicts one embodiment of an amusement ride system for swinging a passenger
carriage on a first and second swing line between a first and second location;
Figure 11A depicts one embodiment of a trolley retraction subsystem that shows a trolley
line motor mounted to an anchoring structure;
Figure 11B depicts one embodiment of a trolley actuation subsystem that shows a first
weighted line coupled to a weight for pulling the first trolley to the first location
in preparation for a swinging ride;
Figure 12 depicts one embodiment of a swing line tension subsystem that controls slack
and tension in a first swing line and a second swing line; and
Figure 13 is a schematic flow chart diagram of swing amusement ride method, according
to one embodiment.
DETAILED DESCRIPTION
[0015] Reference throughout this specification to "one embodiment," "an embodiment," or
similar language means that a particular feature, structure, or characteristic described
in connection with the embodiment is included in at least one embodiment of the subject
matter of the present disclosure. Appearances of the phrases "in one embodiment,"
"in an embodiment," and similar language throughout this specification may, but do
not necessarily, all refer to the same embodiment. Similarly, the use of the term
"implementation" means an implementation having a particular feature, structure, or
characteristic described in connection with one or more embodiments of the subject
matter of the present disclosure, however, absent an express correlation to indicate
otherwise, an implementation may be associated with one or more embodiments.
[0016] Figure 1A depicts one embodiment of an amusement ride system for swinging a passenger
or passengers on a swing line. The depicted embodiment of the system includes a support
component 100 extending across a canyon 50, a trolley 200, a retraction subsystem
300, and a swing subsystem 400. The trolley 200, the retraction subsystem 300, and
the swing subsystem 400 are described below in greater detail with reference to Figures
2-5. Generally, the amusement ride of the present disclosure provides a system for
swinging a passenger carriage on a swing line, wherein the swing line pivots about
a trolley that is movably attached to a support component that is spanning a gap.
[0017] The system of the present disclosure provides a support component 100 extending between
two points 51, 52 in a first horizontal direction 56, which can be substantially horizontal
(e.g., slightly angled as shown or significantly angled if necessary). At least a
portion 104 of the support component 100 that extends between the two points 51, 52
is suspended a distance 53 above the ground. In other words, the support component
100 includes at least three segments, a first anchored segment 102 affixed to the
first point 51, a medial segment 104 suspended a distance 53 above the ground, and
a second anchored segment 106 affixed to the second point 52. Thus, the two points
51, 52 are elevated above the ground so that a user may achieve a swinging motion
while being supported by the support component 100. Therefore, throughout the present
disclosure, the term "ground" will be used to refer to a location that is lower in
elevation than the first and second points 51, 52 and does not necessarily refer to
ground level (i.e., the swing system may be constructed on top of a large structure
with towers comprising the first and second points 51, 52).
[0018] In one embodiment, as depicted in Figure 1A, the first point 51 and the second point
52 are actually walls or cliffs of a canyon 50 and the ground is actually the valley
floor. In other embodiments, the elevated points 51, 52 may be the walls/cliffs of
a gorge, valley, ravine, gap, gulch, or chasm. The support component 100 may be affixed
at the first and second points 51, 52 via conventional securing assemblies. For example,
steel supports may be driven into the face of the canyon and the support component
100 may be coupled thereto. Figure 1B, however, depicts another embodiment of an amusement
ride system for swinging a passenger or passengers on a swing line. In Figure 1B,
the first point 51 and the second point 52 may be man-made (e.g., manufactured) structures,
such as buildings and/or towers. For example, in one implementation, each of the first
and second points 51, 52 may be defined by respective first and second manufactured
towers (e.g., buildings, structures, beams) that extend from the ground. The first
tower 103 that defines the first point 51 may have stairs or an integrated elevator
that transports passengers up the tower to ride the amusement ride system and down
the tower to exit the amusement ride system after riding the amusement ride attraction.
The towers may be constructed of metal scaffolding, cement, and/or other construction
materials. In one embodiment, the first point 51 or the second point 52 may be a manufactured
tower while the other may be a wall or cliff of a canyon (i.e., a natural structure).
The manufactured towers may also include tensioned support cables anchored to the
ground (not depicted) configured to stabilize and shore up the towers.
[0019] The support component 100, in one embodiment, may be a cable or a plurality of cables.
For example, the support component 100 may comprise two % inch steel cables that extend
across the entire canyon 50, which can have walls that extend upwards of 4,000 feet
above the valley floor, in some implementations. The cables may be tensioned to around
5,000 pounds and may each have a rating of 85,000 pounds, according to one embodiment.
In another embodiment, the support component 100 may be constructed of a rigid material
spanning the distance between the two points 51, 52, such as a beam or a truss structure.
The support component may also include other elements, such as a tower 103. While
the system in Figures 1A and 1B depicts the tower 103 as an element of the first anchored
segment 102 of the support component 100, the distinction between whether the tower
103 is an element of the support component 100 or an element of the canyon 50 is not
important. In other words, throughout the present disclosure, the use of the word
"tower" as an element of the first anchored segment 102 of the support component 100
should not limit the scope of the disclosure in any way.
[0020] Figure 2 depicts one embodiment of an amusement ride system for swinging a passenger
on a swing line with the swing line affixed to the first anchored segment 102 of the
support component 100. As described above, the amusement ride system disclosed in
the present application includes a support component 100 (described above with reference
to Figures 1A and 1B), a trolley 200, a retraction subsystem 300, and a swing subsystem
400. The embodiment depicted in Figure 2 also includes a passenger loading subsystem
500, which is described below with reference to Figure 3. The trolley 200, the retraction
subsystem 300, and the swing subsystem 400 are all supported and sustained by the
support component 100. More specifically, the trolley 200 is movably attached to the
support component 100 so as to slide, roll, glide or otherwise move along the length
of the support component 100 in the first horizontal direction 56. The retraction
subsystem 300 powers the movement of the trolley 200 back and forth along the length
of the support component 100. The swing subsystem 400 attaches to or engages the trolley
200 in such a manner so as to allow a passenger to be pivoted about the trolley 200
in a swinging motion when the trolley 200 is located near the medial segment 104 of
the support component.
[0021] As mentioned, the trolley 200 is an element of the system that is movably attached
to the support component 100. The trolley 200 may be positioned near the medial segment
104 of the support component 100 while the passenger is swinging but may be positioned
near the first anchored segment 102 of the support component 100 while the passenger
is being loaded or unloaded into the amusement ride. For example, in one embodiment
the trolley 200 includes a pulley or a sheave engaged on a cable (support component
100) so as to be freely movable along the length of the cable. The trolley 200 may
also include a tethering mechanism 202 for temporarily anchoring the trolley to the
medial segment 104 of the support component 100 during swinging. The trolley 200 may
also be embodied in other devices that are capable of being moved along a cable or
a beam. For example, the trolley 200 may be a rollercoaster-type trolley with wheels
engaging both the upper and lower surfaces of the support component 100. The retraction
subsystem 300, as briefly described above, is configured to move the trolley 200 along
the support component 100 between the first anchored segment 102 and the medial segment
104. According to one embodiment, the retraction subsystem 300 may include a trolley
line 301 affixed to the trolley 200, a first pulley member 302 affixed to the first
anchored segment 102 of the support component 100, a medial pulley member 304 affixed
to the medial segment 104 of the support component 100, and a reversible trolley line
drive motor 306 for extending and retracting the trolley line 301. The trolley line
301 may comprise, for example, two ¼ inch cables extending between the two pulley
members 302, 304 and affixed to the trolley. In another embodiment, the trolley line
301 comprises belts or straps extending between the pulley members 302, 304. The pulley
members 302, 304 may include drums, sheaves, or barrels for engaging the trolley line
301.
[0022] According to one embodiment, the medial pulley member 304 may be affixed to the medial
segment 104 of the support component 100 by clamping or permanently fastening to the
support component 100. Also, the medial pulley member 304 may include a tethering
mechanism part 305 compatible with the tethering mechanism 202 on the trolley 200,
wherein the trolley 200 can be temporarily fastened and secured indirectly to the
medial segment 104 of the support component 100 (via the medial pulley member 304).
Throughout the pages of the disclosure, the term pulley is used to refer to a wheel
or roller that has a groove for engaging a belt, rope, or cable (e.g., a sheave).
[0023] Because the two pulley members 302, 304 are affixed to the support component 100,
the trolley line drive motor 306 can power the rotation of one of the pulley members
to retract/extend the trolley line 301, thus moving the affixed trolley 200 along
the length of the support component 100. The trolley line drive motor 306 may be affixed
to the first anchored segment 102 of the support component 100 (i.e. affixed to the
tower 103 as depicted in Figure 2) and may drive the rotation of the first pulley
member 302. In another embodiment, the trolley line drive motor 306 may be affixed
to the medial segment 104 of the support component 100 and may drive the rotation
of the medial pulley member 304. According to yet another embodiment, the pulley line
drive motor 306 may not actually be a stand-alone element of the system but may be
integrated into one of the pulley members 302, 304. It is contemplated the one of
ordinary skill in the art will recognize other retraction-type systems that may be
employed in the present disclosure for moving a trolley along a support line. For
example, the trolley 200 may include an integrated motor for moving the trolley along
the support component from the passenger unloading/loading location to the medial
location, such that a retraction subsystem 300 may not be needed.
[0024] The swing subsystem 400, according to one embodiment, includes a swing line 402,
a passenger carriage 404, a swing line drive motor 406, and a swing line pulley member
408. The swing line 402 may be any cable, rope, or cord capable of supporting the
weight of at least one passenger and the passenger carriage 404. According to one
embodiment, the swing line 402 is constructed of two ¼ inch cables. The passenger
carriage 404 may be a harness for securely holding a person to the swing line 402.
In another embodiment, the passenger carriage 404 may include a chair, reclining member,
or other personal supporting apparatus for positioning the passenger in various positions
during the swing trajectory (e.g., head forward and lying on one's stomach, sitting
down facing forwards, sitting down facing backwards, hanging upside down, etc.). According
to one embodiment, the passenger carriage 404 may be configured to hold a single passenger
or the carriage 404 may be configured to hold multiple passengers. For example, the
passenger carriage 404 may be a tandem seat that positions two passengers side-by-side.
The passenger carriage 404 may include straps, buckles, belts, fasteners, clamps,
ties, padding, arm supports, leg supports, neck/head supports, etc. It is contemplated
that those of skill in the art will recognize other devices and mechanisms for securely
swinging a person on a line that fall within the scope of this disclosure.
[0025] The swing line drive motor 406, according to the depicted embodiment, may be affixed
to the first anchored segment 102 of the support component 100 (i.e., affixed to the
tower 103) and the swing line pulley member 408 may be affixed to the trolley. Similar
to the trolley line drive motor 306 described above with reference to Figure 2, the
swing line drive motor 406 may be a component of a pulley, sheave, or drum or the
swing line drive motor 406 may drive the rotation of a pulley/drum upon and around
which the swing line 402 coils and uncoils during retraction and extension, respectively.
The swing line drive motor 406 is capable of retracting and extending the swing line
402 through and across the swing line pulley member 408, thereby decreasing and increasing,
respectively, the length 54 of the swing line 402 between the trolley 200 and the
passenger carriage 404. The length 54 of the swing line 402 between the trolley 200
and the passenger carriage 404 should be less than the distance 53 between the medial
segment 104 of the support component 100 and the ground to prevent the passenger carriage
404 from making contact with the ground during swinging. According to one embodiment,
the swing line drive motor 406 may be configured to perform rapid retraction and extension
actions, thus causing the length 54 of the swing line 402 to change throughout the
swinging motion, thus increasing the thrill and amusement experience of the passenger.
For example, the swing line drive motor 406 may be configured to raise and lower the
passenger carriage 404 during the swinging trajectory in order to correspond to the
various elevation contours of the canyon 50 floor. Figures 4 and 5 below include details
relating to additional embodiments for configuring the swing subsystem 400.
[0026] Figure 3 depicts one embodiment of an amusement ride system for swinging a passenger
on the swing line 402 with the passenger in a loading position. As briefly described
above, the amusement ride system of the present disclosure may also include a passenger
loading subsystem 500. The passenger loading subsystem 500 may include a platform
502 for temporarily engaging the passenger carriage 404 during loading/unloading and
securing mechanisms 504 for temporarily anchoring the passenger carriage and/or the
passenger during loading and unloading. For example, if the passenger carriage 404
is a board-like apparatus upon which a passenger lies, the platform 502 may include
a frame for engaging the shape of the passenger carriage 404. According to one embodiment,
the platform 502 may be configured to raise and lower to engage and disengage, respectively,
the passenger carriage 404. Additionally, the platform 502 may also be configured
to move and tilt in various directions in order to orient the passenger into a desired
position before swinging. For example, once a passenger is loaded into the carriage
404, the platform 502 may tilt the carriage 404 so that the passenger is looking straight
down the cliff face of the canyon 50. The securing mechanisms 504 may include supplementary
anchoring lines that tether all passengers (and ride attendants) safely to the first
point 51 or the first anchored segment 102. According to one embodiment, the securing
mechanisms 504 may also be configured to serve as a rip cord or a pull string that
the passenger may actuate in order to initialize the swing.
[0027] Using the embodiment depicted in Figure 3, the amusement ride process for loading,
swinging, and unloading passengers proceeds as follows, according to one example.
First, the passenger is positioned into the passenger carriage 404 and the harnesses
are securely fastened. The trolley 200 then, or concurrently, is moved along the support
component 100 by the retraction subsystem 300 towards the medial segment 104 where
it may be tethered (interaction between 202 and 305) to the medial pulley member 304,
(or temporarily fixed to the support component 100 via an internal or integral clamping
mechanism) in preparation for swinging, thus extending the swing line 402 to its swinging
length. The platform 502 may tilt and/or rise, preparing the passenger and the passenger
carriage 404 for launch. Once the passenger initiates the swinging action, either
the trolley line drive motor 306 may be configured to move the trolley 200 closer
to the medial segment 104 of the support component 100 or the swing line drive motor
406 may be configured to retract a portion of the swing line 402, thus ensuring that
when the passenger carriage completes one pendulum period it will not make contact
with the first point 51 (i.e., the canyon 50 wall) or the platform 502. After swinging,
the retraction subsystem 300 moves the trolley 200 back towards the first anchored
segment 102 and the platform 502 while the swing line drive motor 406 retracts the
swing line 402 to raise the passenger carriage 404 up to the platform 502.
[0028] Figure 4 depicts another embodiment of the amusement ride system for swinging a passenger
on the swing line 402 with the swing line affixed to the trolley 200. In the depicted
embodiment, the swing subsystem 400 only includes the swing line 402 and the passenger
carriage 404. In other words, in the depicted embodiment, there is no swing line drive
motor and no swing line pulley member. In such an embodiment, the passenger, while
swinging, still pivots about the trolley 200 and the trolley is still movable along
the length of the support component 100 between the first anchored segment 102 and
the medial segment 104. However, since the swing line 402 does not retract, the depicted
embodiment of the system may be implemented, for example, in situations where the
passengers are loaded into the carriage 404 at a different location than where they
are unloaded.
[0029] For example, passengers may be loaded into the carriage 404 at the first point 51
or at another elevated point along the wall of the canyon 50. After the passenger
has swung on the ride and the swinging motion has substantially ceased, the trolley
200 may be configured to move back towards the first anchored segment 102 of the support
component 100, thus allowing the passenger carriage 404 to come into contact with
the side walls of the canyon 50 for unloading the passengers. The passenger carriage
404 may then be manually hoisted, by ride attendants or other users, back to the first
point 51 for loading new passengers. Additionally, the retraction subsystem 300 may
also be configured manually. In other words, ride attendants or other users may pull
the trolley 200 back and forth along the support component 100 instead of using a
drive motor. Thus, Figure 4 depicts on embodiment of the swing system that includes
fewer components but still provides the same basic architecture for providing passengers
the thrill of swinging across a gap. In another embodiment, not depicted in Figure
4, a swing line drive motor may be included in the swing subsystem 400 but the motor
may be affixed to, or at least a component of, the trolley 200. In such an embodiment,
the swing line 402 may be extended or retracted directly from the trolley 200. Figure
5 depicts yet another embodiment of the amusement ride system for swinging a passenger
on the swing line 402 with the swing line 402 affixed to the medial segment 104 of
the support component 100. In the depicted embodiment, the swing line 402 is anchored
to the medial segment 104 of the support component 100, either directly or indirectly
via the medial pulley member 304, and the swing subsystem 400 includes a swing line
pulley member 408 affixed to the trolley 200 but does not include a swing line drive
motor. In such an embodiment, the retraction subsystem 300 can move the trolley 200
back and forth along the support component 100 between the first anchored segment
102 and the medial segment 104, thus causing the passenger carriage 404 to raise and
lower according to the position of the trolley 200.
[0030] For example, since the total length of the swing line 402 in the depicted embodiment
is fixed, the length 54 of the swing line 402 between the support component 100 and
the passenger carriage 404 increases as the trolley approaches the medial segment
104 and, conversely, the said length 54 decreases as the trolley approaches the first
anchored segment 102. Therefore, in such an embodiment, a swing line drive motor may
not be necessary because the retraction subsystem 300 and the movement of the trolley
200 raises and lowers the passenger carriage 404. However, although not depicted in
Figure 5, a passenger loading subsystem that movably extends outward and/or upward
from the cliff 50, 51 may be helpful in such an embodiment to ensure the safety of
the passengers and prevent the passenger carriage 404 from contacting the canyon during
the swinging action. In another embodiment, not depicted in Figure 5, a swing line
drive motor may be included in the swing subsystem 400 but the motor may be affixed
to the medial segment 104 of the support component 100 or to the medial pulley member
304.
[0031] Figure 6 depicts one embodiment of a tower 103 and a passenger loading subsystem
500 for an amusement ride system. Similar to the embodiments described above, the
embodiment of the tower 103 depicted in Figure 6 not only provides an anchoring point
for the various support cables and lines, but the tower 103 may also include walkways
and various other passenger amenities. For example, the tower 103 may house the passenger
loading subsystem 500. Although not shown in Figure 6 to avoid obscuring aspects of
the disclosure, the walkways may have safety walls or safety railings around the peripheral
edges to prevent passengers and/or ride attendants from falling off. According to
one embodiment, the trolley line drive motor 306 and the first pulley member 302 may
be mounted to a roof of the platform 103 so that the trolley line 301 extends above
the passengers (not depicted). The support component 100 may be affixed to the tower
103 at the same position as the trolley line drive motor 306. The tower 103 may also
include cable winches (not shown) for tensioning the support component cables. At
one end 105 of the tower 103, a walkway may extend out over the edge of the canyon
50 wall. A passenger loading subsystem 500 may be located at the end 105 of the walkway.
Also depicted in Figure 6 is a swing line 402 and a passenger carriage 404. Additional
details regarding one embodiment of the passenger loading subsystem 500 and the passenger
carriage 404 are shown in Figures 7 and 8.
[0032] Figure 7 depicts one embodiment of a platform 502 of a passenger loading subsystem
500 with a passenger carriage 404 in a launching position. According to one embodiment,
the platform 502 of the loading subsystem 500 may include rotatable floor panels that
pivot 501 outwardly about hinges 503 into a launch position. The passenger loading
subsystem 500 may also include an actuating lift 506 (e.g., a hydraulic/pneumatic
piston) that can be controlled to position the carriage 404 in the launch position,
as depicted. In other words, once a passenger is securely harnessed into the passenger
carriage 404, the floor panels below him may pivot outwards and the carriage 404 may
be tipped forward by the actuation of the lift 506 so that the passenger is looking
straight down at the canyon 50 and the ground below. As described above, the passenger
may then pull or trigger the release of the securing mechanism to initiate the swing.
In another embodiment, the passenger loading subsystem may automatically trigger the
release of the passenger carriage 404. According to another embodiment, and as described
below in greater detail with reference to Figure 8, the passenger loading subsystem
500 may have engagement arms 507 that have notches 508 (not shown in Figure 7, see
Figure 8) for receiving support bars 409 affixed to the support member 407 of the
passenger carriage 404. As the passenger carriage 404 is tilted forward by the lift
506, the support bars 409 may slide out of the notches 508 of the engagement arms
507 to commence the swinging action.
[0033] Figure 8 is a side view of one embodiment of a passenger loading subsystem 500 and
a passenger carriage 404. Figure 8 depicts the passenger loading subsystem 500 and
the passenger carriage 404 in both a loading position 509 (gray-dotted lines) and
a launch position 510. The passenger carriage 404 may include a passenger seat 405
permanently affixed to a passenger support member 407. As briefly described above,
the passenger seat 405 may hold a single passenger or may hold multiple passengers
(e.g., a tandem seat). The passenger support member 407 may have support bars 409
that extend horizontally across the support member 407. These support bars 409 may
be received into notches 508 on the engagement arms 507. Once again, the engagement
arms 507 are hingedly coupled to a fixed point on the platform and the lift 506 can
be actuated to extend and retract the loading subsystem 500 between the loading position
509 and the launch position 510. Once the lift 506 has tipped the engagement arms
507 to a certain position, the support bars 407 of the passenger carriage 404 may
slide out of the notches 508 on the engagement arms 507 and the passenger carriage
404, including the passenger support member 407, the passenger seat 405, and the passenger,
commences the swinging action.
[0034] It is contemplated that additional configurations of the various components and subsystems
of the amusement ride swing system fall within the scope of the present disclosure.
For example, the swing line drive motor 406 may be positioned and affixed to various
locations in the system or may not even be included at all in a certain embodiment,
as briefly described above. Additionally, it is contemplated that the components and
subsystems of the presently disclosed amusement ride swing system are scalable according
to the needs of a specific application. For example, multiple support components (e.g.,
multiple cables) 100 may extend across the canyon 50 (at least the multiple cables
would extend between the first anchored segment 102 and the medial segment 104) for
supporting multiple trolleys 200, multiple retraction subsystems 300, multiple swing
subsystems 400, and/or multiple loading subsystems 500 for expeditiously ushering
passengers through the ride.
[0035] Figure 9 is a schematic flow chart diagram of a swing amusement ride method 800,
according to one embodiment. The method 900 includes loading a passenger into a passenger
carriage on a platform at 902. A swing line is interconnected between the passenger
carriage 404 and the trolley 200. The trolley 200 is movably attached to the support
component 100 that extends in a direction across a canyon 50. The method 900 includes
positioning the passenger carriage into a launching position on the platform at 904.
The method 900 continues and the passenger carriage is released from the platform
to swing in the direction of the support component at 906. After the swinging ride
has stopped, the method 900 includes retracting the swing line to raise the passenger
carriage at 909 and moving the trolley towards the platform to unload the passenger
from the passenger carriage at 910.
[0036] Figure 10 depicts one embodiment of an amusement ride system 600 for swinging a passenger
carriage 604 on a first swing line 641 and second swing line 642. The first swing
line 641 extends from and swings about a first location 611 and the second swing line
642 extends from and swings about a second location 612. The first location 611 and
second location 612 are spaced apart from each other.
[0037] Figure 10 also depicts a magnified view of the first and second swing lines 641,
642 coupled to the passenger carriage 604.
[0038] In the depicted embodiment, the loading location 610, the first location 611, and
the second location 612 are all substantially elevated above the ground 40. As seen,
the loading location 610, the first location 611, and the second location 612 may
be coupled to or portions of separate, man-made towers. In one embodiment, one or
more of the locations 610, 611, 612 is a tower that is utilized for a separate amusement
ride 609 that may function as part of the passenger loading subsystem. For example,
the loading location 610 may be coupled to or may be a portion of rapid-rise/rapid-fall
type ride 609. The ride 609 may include a passenger carriage 613 movably secured about
the tower. The passenger carriage 613 retains one or more passengers, such as in a
seated position. Further, the passenger carriage 613 is driven upwardly and downwardly
along the tower as shown by directional arrows via a power source or mechanism (not
shown). The power source is configured to cause the passenger carriage to rapidly
ascend and/or rapidly descend translationally along the tower. In certain implementations,
passengers are loaded onto the passenger carriage 613 at a first loading location
on the ground. The passenger carriage 613 rapidly rises and falls, and ultimately
stops at a second loading proximate the top of the tower above the ground. The passengers
then unload from the passenger carriage 613, and then load into the passenger carriage
604. After experiencing the ride on the passenger carriage 604, the passengers then
unload from the passenger carriage 604, and load into the passenger carriage 613,
which descends to the first loading to allow the passengers to return to the ground.
In this manner, a passenger may experience two different types of rides as one continuous
experience, with one ride functioning as part of the loading subsystem of the other
ride.
[0039] In another embodiment, one or more of the locations 610, 611, 612 may be coupled
to or portions of a natural structure, such as the wall of a canyon. In yet another
embodiment, two or more of the locations 610, 611, 612 may be interconnected to have
an integrated structure. For example, the first and second locations 611, 612 may
be integrated together in an arch structure that allows the passenger carriage 604
to swing between the support legs of the arch structure. As depicted, and according
to one embodiment, the locations 610, 611, 612 are arranged in a triangular formation,
such that lines drawn from location to location form a triangle. In one embodiment,
the loading location 610 is similar to the first anchored segment 102 of the support
component 100 described above. Further, the loading location 610 may be similar to
and include components of the passenger loading subsystem 500 described above with
reference to Figures 6-8. The two swing lines 641, 642 are each pivotally engaged
on a respective one of two trolleys 631, 632. Respective ends of both swing lines
641, 642 are coupled to the passenger carriage 604 in a spaced-apart manner. With
two spaced-apart swing lines 641, 642 supporting the passenger carriage 604, the passenger
carriage 604can be more easily maintained in a desired rotational orientation and
lateral position during the swinging motion, compared to supporting the passenger
carriage with a single swing line. For example, the two swing lines 641, 642 cooperatively
function to substantially maintain the rotational orientation of the passenger carriage
604 in a forward facing direction and substantially maintain the lateral position
of the passenger carriage along a single vertical-longitudinal plane. Further, the
two spaced-apart swing lines 641, 642 of the system facilitate a decrease in loading/unloading
cycle times by increasing the stability of the carriage during a retraction operation
of the swing lines. As will be described in more detail below, the retraction operation
includes the retraction, or shortening, of the portions of the swing lines 641, 642
extending from the trolleys 631, 632 to the passenger carriage 604.
[0040] The trolleys 631, 632 of the amusement ride system 600 are movably attached to a
respective one of two anchor cables 621, 622. A first anchor cable 611 extends between
the loading location 610 and the first location 611, and a second anchor cable 612
extends between the loading location 610 and the second location 612. Each of the
anchor cables 621, 622 may have properties similar to the support component 100 described
above. The amusement ride system 600 further includes one or more trolley actuation
subsystems (not depicted in Figure 10) coupled to the trolleys 631, 632. The trolley
actuation subsystem is similar to the retraction subsystem described above. The trolley
actuation subsystems are controllable to move the trolleys back and forth along the
anchor cables 611, 612. Further details relating to the trolley actuation subsystem(s)
are included below with reference to Figures 11A and 11B.
[0041] The anchoring points of the swing lines 641, 642, the inclusion of a swing line drive
motor (not depicted in Figure 10), and the implementation details of the retraction
subsystems may be selected according to the specifics of a given application. For
example, the first swing line 641 and the second swing line 642 may be affixed to
the loading location 610 and pivotally engaged on pulley members of the trolleys 631,
632, in a manner similar to the embodiment described above in Figure 2. In such an
embodiment, the loading location 610 may include swing line drive motors for extending
and retracting a respective one of the swing lines 641, 642. In another embodiment,
the swing lines 641, 642 may be directly affixed to the trolleys 631, 632, respectively,
similar to the configuration of Figure 4. In yet a further embodiment, the swing lines
641, 642, may be affixed to the first and second locations 611, 612, respectively,
similar to the configuration described above with reference to Figure 5. Those of
ordinary skill in the art will recognize, in view of this disclosure, other various
configurations and positions of the swing line components and the retraction subsystem
components that may be implemented according to the specifics of a given application.
Such configurations and positions fall within the scope of the present disclosure.
In one embodiment, the amusement ride system 600 includes a swing line tension subsystem
650 as described below with reference to Figure 12. In another embodiment, the amusement
ride system 600 operates according to the method described below with reference to
Figure 13.
[0042] Figure 11A depicts one embodiment of a trolley actuation subsystem 630 that shows
a trolley line motor 633 mounted to an anchoring structure 615. In the depicted embodiment,
the trolley actuation subsystem 630 includes a single trolley line motor 633 that
is operably coupled to a first trolley sheave 634 and a second trolley sheave 635.
The first and second trolley sheaves 634, 635 are configured to controllably retract
and extend a first trolley line 636 and a second trolley line 637, respectively. The
first trolley line 636 is coupled to the first trolley 631 and the second trolley
line 637 is coupled to the second trolley 632. By utilizing a single trolley line
motor 633 in this manner to retract and extend both trolley lines 636, 637, both trolleys
631, 632 are evenly and uniformly pulled back towards the loading location (see, e.g.,
610 in Figure 10) and extended away from the loading location, thus maintaining the
passenger carriage 604 in a desired orientation. As depicted, the trolley line drive
motor 633 may also include a gearbox 733 for controlling the speed of retraction.
Additionally, as described in greater detail below, the gearbox 733 may also disengage
the sheaves 634, 635 from the trolley line drive motor 633, thus allowing the trolleys
631, 632, whether by gravity or by an active system, to move back across the anchor
cables 621, 622 towards the first and second locations 611, 612.
[0043] As described above, the mounting structure 615 may be coupled to or may be a portion
of the loading location 610. For example, as described above with reference to Figures
6 and 10, the first location 610 may include a man-made platform for loading and unloading
passengers. The mounting structure 615 may be coupled above or may form a raised portion
of the loading platform, thus allowing the trolleys 631, 632 to move over the platform
and situate the carriage 604 into the loading position.
[0044] The trolley lines 636, 637 may be, for example, 0.25-inch cables extending between
the respective trolley sheaves 634, 635 and the respective trolleys 631, 632. In another
embodiment, the trolley lines 636, 637 may be made from belts or straps. The trolley
sheaves 634, 635 may include drums, pulleys, or barrels for engaging the respective
lines. In one embodiment, the sheaves 634, 635 may be grooved with a plurality of
grooves such that each groove of a sheave receives a respective length of a trolley
line when the line is wound onto the sheave. In this manner, a trolley line is not
wound on top of, or overlap, itself, but rather is evenly and controllably positioned
in sections adjacent each other along an axis of the sheath. Figure 11A also shows
a first weighted line 638 and a second weighted line 639 coupled to the first and
second trolleys 631, 632, respectively. These weighted lines 638, 639 are described
in greater detail below with reference to Figure 11B.
[0045] Figure 11B depicts one embodiment of a trolley actuation subsystem 630 that shows
a first weighted line 638 coupled to a weight 832 for pulling the first trolley 631
to the first location 611 in preparation for the swinging ride. On one end, the first
weighted line 638 is coupled to the first trolley 631, and on the other end, the first
weighted line 638 may be coupled to a weight 832. The weight 832 may operably move
along a vertical track 618 that is integrated with the first tower 618 (i.e., first
location 611). The vertical track 618 allows the weight 832 to move up and down the
tower 616 in a controlled fashion and prevents the weighted line 638 from getting
tangled with itself and/or other components of the tower.
[0046] As described above, the trolley actuation subsystem 630 includes a trolley line drive
motor 633 for pulling the trolleys back towards the loading location 610. One or more
weights may be used to pull the trolleys 631, 632 back to the swinging position adjacent
the respective locations 611, 612. In such an embodiment, the trolley line drive motor
633 may disengage (via a clutch or other assembly), thus allowing the weight 832 to
pull the first trolley 631 back towards the first location 611. It is expected that
a similar configuration may be implemented with respect to the second trolley and
the second location. In another embodiment, a single weight may be utilized to pull
both trolleys back to the first and second locations, with cables and sheaves routed
accordingly. In another embodiment, a drive motor, instead of a weight, may be implemented
to pull the trolleys away from the loading location.
[0047] Figure 12 depicts one embodiment of a swing line tension subsystem 650 that controls
slack and tension in first and second swing lines 641, 642. Figure 12 is cross-sectional
view of an integrated tower structure 653 that includes both the first location 611
and the second location 612. The first and second trolleys 631, 632 are shown movably
supported on first and second anchor cables 621, 622. For clarity, components of the
trolley actuation subsystems, which are similar to the retraction subsystem described
above (including trolley lines, trolley pulleys, and trolley drive motors) for each
trolley 631, 632 are not shown in Figure 12.
[0048] The first and second swing lines 641, 642 are secured to the swing line tension subsystem
650, which is coupled to the tower structure 653. In one implementation, the swing
line tension subsystem 650 is coupled to a crossmember of the tower structure 653
that interconnects two vertical towers. The swing line tension subsystem 650 includes
various pulleys/sheaves for routing the swing lines 641, 642 to the swing line drive
motor 655. In one embodiment, the swing lines 641, 642 are each pivotally engaged
on sheaves 651, 652 within each trolley 631, 632, similar to the configuration shown
in Figures 5 and 11. In such a configuration, as the trolleys 631, 632 are pulled
back towards the loading location 610 (not depicted in Figure 12), the portions of
the swing lines 641, 642 between the trolleys 631, 632, respectively, and the passenger
carriage 604 are shortened, thereby effectively raising the passenger carriage 604
to an elevated position for loading/unloading passengers at the loading location 610.
[0049] The swing line tension subsystem 650 may include a single swing line drive motor
655 that retracts and extends both swing lines 641, 642. The swing line drive motor
655 can be actuated (e.g., rotated) to cause the first and second swing lines 641,
642 to move in the direction indicated by the movement arrows for retracting the swing
lines 641, 642. The drive motor 655 may be further actuated to operate in a reverse
direction (e.g., a direction opposite the direction indicated by the movement arrows),
thereby extending the swing lines 641, 642. According to one embodiment, the drive
motor 655 may be used to extend and retract substantial portions of the swing lines
641, 642 to facilitate elevating the passenger carriage for loading/unloading 604.
However, in the depicted embodiment, the swing line tension subsystem 650 may only
provide a small degree (e.g., several feet) of extension/retraction of the swing lines
641, 642.
[0050] As described above, the movement of the trolleys 631, 632 along the anchor cables
621, 622 and the sheave engagement between the swing lines 641, 642 and the trolleys
631, 632 may, to a major extent, facilitate the raising and lowering of the passenger
carriage 604, while the swing line tension subsystem 650 only minimally contributes
to the raising and lowering of the passenger carriage 604. For example, as the trolleys
631, 632 are pulled back towards the loading location 610, the portion of the swing
lines 641, 642 between the trolleys 631, 632 is shortened so that the passenger carriage
604 is drawn upwards toward and proximate the trolleys 631, 632, as well as the loading
location 610. However, a small degree of slack in the swing lines 641, 642 may be
useful in order to easily perform the load/unload operations. In such an embodiment,
the swing line tension subsystem 650 may be employed to provide the small degree of
flexibility to the swing line length. Further, upon loading and preparing passengers
for the ride, the swing line tension subsystem 650 may then be operatively controlled
to take up the slack in the swing lines 641, 642, thus allowing a passenger to experience
a smooth swinging motion (i.e., preventing the passengers from experiencing the sudden
acceleration jolt that would occur if the swing lines had slack). In another embodiment,
the swing line tension subsystem 650 may further include shock absorber elements 657
that further allow the user to experience a smooth ride.
[0051] The swing line tension subsystem 650 may further include safety mechanisms, such
as blocks or knots 658 affixed to the portion of the swing lines between two pulley
members that would catch and prevent the passenger carriage 604 from falling in the
event that the swing line drive motor 655 fails. Further, the swing line tension subsystem
650 may include guide panels or protective panels running along the routed swing lines
641, 642 to prevent undesired twisting/tangling of the swing lines 641, 642. In one
embodiment, the swing line tension subsystem may not be mounted to the tower structure
653 between the first and second locations 611, 612 but instead may be mounted to
one of the locations 611, 612 and may include pulleys and sheaves that route the tension
lines and/or shock absorber elements to the other location. In another embodiment,
instead of using a single drive motor 655, two drive motors may be employed, such
as one for each swing line. For example, the swing line tension subsystem may include
two separate assemblies on each of the first and second locations 611, 612 (i.e.,
towers).
[0052] Figure 13 is a schematic flow chart diagram of a swing amusement ride method 950,
according to one embodiment. The method includes loading a passenger into a passenger
carriage at a loading location (e.g., the loading location 610) at 952. A first swing
line and a second swing line of the swing amusement ride are interconnected between
the passenger carriage and first and second trolleys, respectively. As described above,
the first trolley and the second trolley can be movably attached to a first anchor
cable and a second anchor cable, respectively. The method 900 further includes moving
the first trolley and the second trolley away from the loading location at 954 and
positioning the passenger carriage into a launching position at the loading location
at 956. Positioning the passenger carriage may include using a swing line tension
subsystem (e.g., the swing line tension subsystem 650 of Figure 12) to adjust the
tension and/or slack of the swing lines. The method 950 also includes releasing the
passenger carriage from the loading location to swing at 958 and, once the ride is
over, moving the trolleys towards the loading location to unload the passenger(s)
from the passenger carriage at 958. Once again, moving the trolleys towards the loading
location may include using the swing line tension subsystem to adjust the tension
and/or slack of the swing lines.
[0053] The schematic flow chart diagrams included herein are generally set forth as logical
flow chart diagrams. As such, the depicted order and labeled steps are indicative
of one embodiment of the presented method. Other steps and methods may be conceived
that are equivalent in function, logic, or effect to one or more steps, or portions
thereof, of the illustrated method. Additionally, the format and symbols employed
are provided to explain the logical steps of the method and are understood not to
limit the scope of the method. Although various arrow types and line types may be
employed in the flow chart diagrams, they are understood not to limit the scope of
the corresponding method. Indeed, some arrows or other connectors may be used to indicate
only the logical flow of the method. For instance, an arrow may indicate a waiting
or monitoring period of unspecified duration between enumerated steps of the depicted
method. Additionally, the order in which a particular method occurs may or may not
strictly adhere to the order of the corresponding steps shown.
[0054] In the above description, certain terms may be used such as "up," "down," "upper,"
"lower," "horizontal," "vertical," "left," "right," and the like. These terms are
used, where applicable, to provide some clarity of description when dealing with relative
relationships. But, these terms are not intended to imply absolute relationships,
positions, and/or orientations. For example, with respect to an object, an "upper"
surface can become a "lower" surface simply by turning the object over. Nevertheless,
it is still the same object. Further, the terms "including," "comprising," "having,"
and variations thereof mean "including but not limited to" unless expressly specified
otherwise. An enumerated listing of items does not imply that any or all of the items
are mutually exclusive and/or mutually inclusive, unless expressly specified otherwise.
The terms "a," "an," and "the" also refer to "one or more" unless expressly specified
otherwise. Additionally, instances in this specification where one element is "coupled"
to another element can include direct and indirect coupling. Direct coupling can be
defined as one element coupled to and in some contact with another element. Indirect
coupling can be defined as coupling between two elements not in direct contact with
each other, but having one or more additional elements between the coupled elements.
Further, as used herein, securing one element to another element can include direct
securing and indirect securing. Additionally, as used herein, "adjacent" does not
necessarily denote contact. For example, one element can be adjacent another element
without being in contact with that element.
[0055] As used herein, the phrase "at least one of", when used with a list of items, means
different combinations of one or more of the listed items may be used and only one
of the items in the list may be needed. The item may be a particular object, thing,
or category. In other words, "at least one of" means any combination of items or number
of items may be used from the list, but not all of the items in the list may be required.
For example, "at least one of item A, item B, and item C" may mean item A; item A
and item B; item B; item A, item B, and item C; or item B and item C. In some cases,
"at least one of item A, item B, and item C" may mean, for example, without limitation,
two of item A, one of item B, and ten of item C; four of item B and seven of item
C; or some other suitable combination.
[0056] The described embodiments are to be considered in all respects only as illustrative
and not restrictive. The scope of protection is, therefore, indicated by the appended
claims rather than by the foregoing description. All changes which come within the
meaning and range of equivalency of the claims are to be embraced within their scope.