[0001] 1 - The present invention is titled Perpetual Blind calendars, abbreviated (PBC)
and deals with a variety of permanent advanced and combined calendars using basically
mobile monthly units with daily displays using common variable symbols of One Letter
Alphabet (OLA) system.
[0002] 2 - Comparison with the prior art revealed no substantial prior art in that field,
that could replace the present invention.
3 - Field of the invention.
[0003] 3-1 The present invention deals with a variety of advanced calendars, and combined
calendars involving a Gregorian calendar and Oriental short months moon calendars,
based on mobile months' units, where the month's units could be moved monthly or yearly
with respect to the weekdays, which units are of longitudinal shape, circular shape
or the like and are positioned and held with respect to each other and the weekdays
unit by means of: a) a base plate and guides guiding the units; b) opposite flexible
transparent films or suspenders interconnected in between the monthly units, with
the said films or suspenders suspended, or rolled in a form of a belt around a central
shaft; c) chains supporting the opposite sides of the monthly units in a venetion
blind pattern with a provision to move said units laterally; d) opposite solid transparent
plates pressed against the month's units to keep them in place; e) cylindrical transparent
concentric drums around which the longitudinal units are fastened; f) longitudinal
strips packed in a slide rule pattern; g) circular rings or discs rotating around
a common central pin, and a variety of cursors, flexible or solid,moved daily to indicate
the current weekday and the corresponding date of the month, and with additional large
display of the actual weekday and the corresponding date of the month, with coloured,
luminous or physical display means using a common variable symbol of One Letter Alphabet
(OLA) system, that could be visually seen at large distance and could be read by the
blind through touching process.
4 - Prior Art
[0004] 4-1 The Prior Art uses mainly disposable calendars hinging basically around the 7
days weekly unit and since the number of days in the months differs from one month
to the other, and while said numbers are not divisible by 7, it makes it difficult
to produce re-usable calendars hinging on the 7 days weekly unit.
[0005] Several attempts were made in the past to produce permanent calendars but failed
to come up with a satisfactory permanent calendar in relation to the mechanisms, positioning
of the units, displays of information, and the overall costs, to replace the present
calendars.
[0006] 4-2 On the other hand a calendar hinging around the monthly unit results with very
small figures hard to distinguish on a distant wall calendar and such are the problems
that the present invention tries to solve to create permanent practical calendars.
5 - Summary
[0007] 5-1 The present invention deals with a variety of perpetual calendars and combined
calendars hinging around monthly units aligned with a number of weekdays displayed
and positioned; a) in one row of weekdays and one parallel strip representing one
month at a time; b) in one row of weekdays and 12 parallel strips for the 12 months
of the year with the said strips, installed in between guides, suspended by transparent
suspenders, pressed in between transparent plates, strapped around transparent cylinders,
squeezed in a slide rule pattern, or the like; c) along circular discs or rings, with
the provision to move the strips or discs representing the monthly units with respect
to those representing the weekdays and with cursors to indicate the actual weekday
and the corresponding date of the month and overall with One Letter Alphabet variable
systems to display daily at a large scale the said actual day and its corresponding
date, etc., resulting in a variety of perpetual calendars adaptable for the wall,
for the wrist and the pocket, that could be visually read at long distance and understood
by the blind through touching process.
6 - Brief Description of the drawings
[0008]
Fig. 1 shows a perpetual calendar consisting of two strips displaying 37 weekdays
and one month at a time with One Letter Alphabet common variable symbols for larger
displays.
Fig. 1X shows a typical cursor used in Fig. 1.
Fig. 2 shows a perpetual calendar consisting of a base plate with 13 strips on it;
one for the weekdays and 12 for the 12 months of the year.
Fig. 2X shows a typical transparent cursor used in Fig. 2 and the like.
Fig. 2Y shows a typical baseboard with upper and lower protruding edges for pressing
thick strips calendars.
Fig. 3, 3X shows a dual perpetual calendar consisting of 26 strips representing solar
and moon calendars (a Western and an Oriental calendar) with one strip representing
the weekdays and 6 pairs representing 6 months of each calendar at opposite sides
of the base plate.
Fig. 4, 4X is similar to Fig. 3 showing a Gregorian and a corresponding Chinese calendar.
Fig. 5 shows a suspended, venetian blind pattern, combined perpetual calendar consisting
of 13 pairs of strips back to back, suspended at opposite ends by means of transparent
suspenders interconnected in between each pair of strips.
Fig. 5X shows a flexible cursor used in Fig. 5, or the like.
Fig. 6 shows a perpetual calendar comprising 13 strips mounted on concentric transparent
cylinders.
Fig. 7 shows a slide rule perpetual calendar consistinging of a transparent flat
sleeve casing, with pairs of back to back strips inside it and a cursor outside.
Fig. 8 shows a combined perpetual calendar with 13 pairs of strips back to back, held
by pressure, sticking or the like, in between two transparent plates.
Fig. 9 shows a circular perpetual calendar consisting of 2 discs, one for the weekdays
and one displaying one consecutive month at a time.
Fig. 10, 10V shows a perpetual calendar consisting of 13 discs, rings or the like,
one for the weekdays marked at the opposite sides and 6 discs on each side of it for
the 12 months of the year.
Fig. 10W shows a frame of opposite trifork plates to hold the circular calendars.
Fig. 10X shows a combined hanger/triangular flexible cursor used with circular calendars.
Fig. 10Y shows a circular cursor used with pocket sized circular calendars, showing
the first 6 months of the year.
Fig. 10Z shows a circular cursor, showing the last 6 months of the year and used opposite
to that shown in Fig. 10Y.
6-1 Description of Numbered Items on the Drawings.
[0009] 1- Baseboard, 1A- short baseboard, 1B-chassis, 2- weekdays strip, 2A- weekdays ring/disc,
2B- two opposite weekdays discs, 3- variable month strip, 3A- 12 months strips, 3B-
opposite months strips, 3C- variable months' ring/disc, 3D- 6 months' discs, 3E- opposite
6 months' rings/discs, 4- cursor, 4A- long cursor, 4B- double cursor, 4C- slide rule
cursor, 4D- hanger/flexible triangular cursor, 4E- circular transparent cursor, 5-
One Letter Alphabet (OLA) common variable symbols, 5A- O.L.A. current year display,
6- guides for strips, 6A- guides/connectors for strips, 6B- cursor guide, 7- holding
means for One Letter Alphabet (OLA) common variable symbols, 7A- central holding means,
8- wall hanging means, 9- cover for excess numbers, 10- One Letter Alphabet (OLA)
display means, 11- cursor window, 12- week separators, 13- cursor strings, 14- cursor
weights, 15- month indicator pin, or the like, 16- transparent suspenders, 17-attachment
means on strips, 18- top plate stiffner, 19- combined chains/holding means, 20- shaft,
21- transparent cylinders, 22- transparent casing, 23- tightening screws, 24- flat
spring loaded squeezer plate, 25- opposite transparent plates, 26- central pin, 27-
notches on ring 3C, 28- slot on ring 2A, 29- eccentric pin on slot 28, 29A- general
eccentric pin, 30- elastic month indicating band on transparent cursors, 31- hanger/spacer
for cursor band.
7 - Preferred Embodiments
[0010] The present invention, called the perpetual blind calendar and abbreviated as (PBC)
deals with a variety of perpetual calendars and related issues, described as follows:
[0012] 7-1-1 Fig. 1 shows a baseboard like No. 1, supporting a plurality of parallel strips
like No. 2, 3 with equal size divisions.
[0013] 7-1-2 One strip like No. 2, considered fixed, and representing a number of weekdays
equal to the number of days in the longest month, in the type of calendar under consideration,
plus 6.
[0014] For the western Gregorian calendar, the number of weekdays on the weekdays strip
No. 2 is 31 plus 6 = 37 occupying individually 37 consecutive divisions.
[0015] 7-1-3 The strip No. 3 is considered mobile and is marked with consecutive numbers
representing the number of days in the longest month in the year, in the calendar
under consideration.
[0016] For the western Gregorian calendar, the numbers marked on the months strip No. 3
are, from 1 to 31, occupying individually 31 divisions of the same size as the divisions
on the weekdays strip No. 2.
[0017] 7-1-4 The names of the consecutive months are displayed and changed on the same mouldings
of One Letter Alphabet (OLA) common variable symbols like No. 5, placed at one end
of the strip.
[0018] 7-1-5 The current weekday and the corresponding date of the month are identified
through the window of a cursor like No. 4, (see Fig. 1X), mounted on a guide fixed
on the baseboard. Every day the said cursor is slid by one weekday division to display
through its window the new weekday on strip No. 2 and its corresponding date on the
months strip No. 3 or the like. 7-1-6 Every month, the strip No. 3 is moved through
its guides like No. 6, to re-align the new month with respect to the weekday strip
No. 2.
[0019] While keeping the division No. 1 on the months strip No. 3, in the zone of the first
week of strip No. 2, said No. 1 division is re-aligned with the weekday on which the
new month begins.
[0020] 7-1-7 Holding means like No. 7 are located at the main intersection of the lines
of One Letter Alphabet (OLA) common variable symbols and are used as holding points
for coloured display means spread in betwen the said holding points to display at
a large scale the first letter of the actual weekday and its corresponding date.
[0021] 7-1-8 the current year is shown by means of One Letter Alphabet (OLA) common variable
symbols like No. 5A, installed on the main baseboard.
[0022] 7-1-9 No. 8 identifies hanging means for wall calendars, consisting of holding means
on the baseboard No. 1 and ties attachment.
[0023] 7-1-10 Coloured display means (not shown) spread in between the holding means No.
7, to show at a large scale the current weekday and its date.
[0024] 7-1-11 The item No. 9 is a decorative cover, tape or a sliding plate to hide the
excess number of days at the end of the months strip when the current month is shorter
than 31 days.
[0026] 7-2-1 Fig. 2 shows a perpetual calendar consisting of a baseboard like No. 1, supporting
a fixed weekday strip like No. 2, and 12 strips like No. 3A representing individually
the 12 consecutive months of the year.
[0027] Once a year each of the 12 months strips is moved along its guides like No. 6, to
re-align the No. 1 division of each month in line with the weekday on strip No. 2,
on which each month begins, in the same way described for Fig. 1.
[0028] 7-2-2 Week separation lines like No. 12 are permanently marked in between consecutive
weeks to show at any time the dates of the weekends and serve at the same time as
references in the alignment of the months' strips with the weekday strip.
[0029] 7-2-3 The items 5A, 7, 8, 9, 10, etc., are the same as described for Fig. 1.
[0030] 7-2X - (See Fig. 2X)
[0031] 7-2X-1 - Fig. 2X shows a long transparent cursor used to identify the weekday and
its date.
[0032] The names of the 12 months of the year are marked on the window of the said cursor
in line with the strips representing the corresponding months.
[0033] The current month is indicated by a marker, an elastic band, or the like slipped
down along the cursor arm and positioned opposite the current month to indicate said
month.
[0034] 7-3 (See Fig. 3, 3X)
[0035] 7-3-1 Fig. 3 shows a combined calendar consisting of a western Gregorian calendar
and a Middle East Oriental calendar based on the moon shorter months.
[0036] 7-3-2 The months' strips No. 3A are mounted alternatively with the shorter months
strip No. 3B to indicate at all times the correspondence of any day of the year on
either calendar.
[0037] 7-3-3 Another alternative is to install 6 months of each calendar on one side and
the remaining 6 months, back to back on the opposite side, with a weekday strip on
each side.
[0038] 7-3-4 Still another alternative is to install separate 12 months of the corresponding
calendars back to back on the opposite sides of the baseboard with a double cursor
like No. 4B, showing the correspondence between the two calendars, on the opposite
sides of the assembly.
[0039] 7-3-5 One of the corresponding calendars has to have the numbers indicating the dates
of the month housed on separate mobile divisions inserted through guides forming a
separate months strip each.
[0040] Each year, when adjusting the months' strips with respect to the weekdays strip,
some numbers, at the end of the months strip have to be removed and inserted at the
beginning of the strip of the following month or vice versa.
[0041] 7-4 (See Fig. 4, 4X)
[0042] 7-4-1 Fig. 4 shows a combined calendar similar to Fig. 3, with the difference that
it relates to a western Gregorian calendar combined with a far East Chinese calendar.
[0044] 7-5-1 Fig. 5 shows a perpetual foldable calendar in a venetian blind pattern consisting
of a short baseboard like 1A, combined with a fixed weekday strip like No. 2, and
12 mobile strips like No. 3A, suspended at their opposite sides from the baseboard
by means of:
A) Chains and hooks that could hook the months' strips through one of a plurality
of holes like No. 17, at the opposite sides of said strips.
B) Flexible transparent sheets, interconnected in between the strips to create guides
for said strips.
C) A pair of transparent flexible suspenders, like No. 16, interconnected in between
the strips to create guides for said strips, or the like.
[0045] 7-5-2 In the case of (B) where the suspenders are continuous transparent sheets the
marking of the week separators like No. 12, is made along the flexible transparent
sheets themselves.
[0046] 7-5-3 The top baseboard No. 1, is stiffened with a plate like No. 18, from which
additional ties like No. 19, are suspended and are used, at certain points along their
links, as holding points like No. 7, for the display means No. 10 (not shown) to show
at a large scale the first letter of the actual weekday and its corresponding date
of the month.
[0047] 7-5-4 At the same time holding means could be fastened along the suspenders so saving
the use of additional ties such as No. 19, or the like.
[0048] 7-5-5 The resultant foldable calendar is presented either: a) as a wall suspended
calendar in a venetian blind pattern; b) with both ends of the 12 strips joined together
and rolled around a central shaft.
[0049] 7-5X - (See Fig. 5X)
[0050] 7-5X-1 A flexible cursor like No. 4A is slid over guides mounted over the strips
assembly, and consisting of flexible strings like No. 13, stretching over the strips
No. 2, 3A, with weights like No. 14, suspended at the end of the strings to keep them
stretched and a month indicator like No. 15, made of a pin held between the twists
of the strings No. 13, and could be rolled inside the said twists and positioned
opposite the current month to identify said month.
[0051] The opposite strings No. 13, are twisted separately to form loose loops, then the
pin No. 15 is inserted through said loops resulting in an assembly allowing the pin
to roll up and down, moving the carrying loops with it, to indicate the new month.
[0052] 7-6 - (See Fig. 6)
[0053] 7-6-1 Fig. 6 shows a cylindrical perpetual calendar consisting of a chassis like
1 (b), supporting a plurality of concentric transparent cylinders like No. 21, 21A.
[0054] 7-6-2 The external cylinder No. 21 (a) is considered fixed and supports the weekdays
strip No. 2, while the internal cylinder No. 21 is mobile and supports 12 strips like
No. 3 (a), representing the 12 months of the year.
[0055] 7-6-3 The strips are either wrapped around the cylinders and fastened by means of
external flexible bands, by sticking means or the like, or rather they are inserted
through grooves provided for them on the periphery of the circular discs, etc.
[0056] 7-6-4 The weekdays and their dates are identified in between the strings of a flexible
cursor, suspended from a guiding edge mounted on the chassis 1 (b) above the said
cylinders. The weekdays are shown on the outer cylinder and their dates are seen on
the inner cylinder, on the month strip, seen adjacent to the weekdays strip.
[0057] 7-6-5 Every month the inner cylinder is rotated around the shaft No. 20 to bring
the strip representing the new month to be seen adjacent to the weekdays strip mounted
on the outer cylinder.
[0058] 7-6-6 The whole assembly is supported on a chassis that could be either standing
on a desk or suspended on the wall by means of a hanger.
[0059] 7-6-7 A set of minimum 3 chains (not shown) are stretched above the calendar assembly
or suspended below it to be used, at certain points, as holding means for One Letter
Alphabet common variable symbols to display at a large scale the current weekday and
its date.
[0060] 7-7 - (See Fig. 7)
[0061] 7-7-1 Fig. 7 shows a perpetual calendar made in a slide rule pattern, consisting
of a transparent longitudinal flat casing like No. 22, with a plurality of strips
inserted inside the said casing: A weekdays strip like No. 2 marked at its opposite
sides and 6 strips like No. 3(b) marked at opposite sides, representing the 12 months
of the year and installed in 3 pairs back to back to each other.
[0062] Every 6 months the 3 pairs of strips No. 3(b) are reversed to display the following
6 months of the year, and adjusted with respect to the weekdays strip as already described
for Fig. 1.
[0063] 7-7-2 The set of strips are squeezed inside the casing by means of a spring loaded
flat plate like No. 24 over pressed by a tightening screw like No. 23.
[0064] 7-7-3 The weekdays and their dates are identified by lines marked on a double cursor
sleeve like No. 4(c) sliding along the transparent casing No. 22.
[0065] 7-7-4 The opposite longitudinal edges of the casing used as holding means to display
at a large scale the weekdays and their dates, with coloured display means like No.
10 (not shown) or the like.
[0066] 7-7-5 The central holding points are provided by means of an elastic colourless string
wrapped longitudinally along the middle of the said calendar.
[0068] 7-8-1 Fig. 8 shows a perpetual calendar consisting of a weekday strip like No. 2
and 12 strips like No. 3A, parallel to the strip No. 2 and held altogether in place
by means of opposite transparent plates like No. 25, stuck, glued or pressed against
each other, by means of Chicago screws or the like, with the 13 strips squeezed in
between.
[0069] 7-8-2 Each year, the assembly is opened, and the month's strips No. 3A are adjusted
with respect to the weekdays strip No. 2 and the assembly is tightened again for the
whole year.
[0070] 7-8-3 The outer periphery of the transparent plates is provided with holding means
like No. 7 which could be:
A - Notches cut in the plates to hold the display ties.
B - Pins, screws or the like fastened on the plates, or the extension of the tightening
Chicago screws themselves, etc., with a central pin like No. 7B or similar one.
[0071] 7-8-4 The resulting calendar is also provided with a cursor like Fig. 5X, with week
separation lines like No. 12, with wall hanging means, etc.
[0072] 7-8-5 The same procedure of pressing the strips to hold them in place could be applied
to hold circular rings representing the months of the year, with the strips or the
rings mounted on one side, back to back at opposite sides or the like.
[0074] 7-9-1 Fig. 9 shows a perpetual circular calendar consisting of a plurality of concentric
rings marked on superimposed discs like No. 2A, 3C, rotating around a central pin
like No. 26.
[0075] 7-9-2 The outer, larger disc No. 2A is marked around its periphery with 37 consecutive
weekdays, housed on 37 equal divisions occupying each of them 360°/37.
[0076] 7-9-3 The inner, smaller disc No. 3C, representing the months of the year, is considered
mobile with respect to the weekdays disc No. 2A, and houses around its periphery numbers
from 1 to 31 occupying 31 divisions equal to 360°,/37 each.
[0077] 7-9-4 The number one division on the disc No. 3C is kept always in the sector of
the first week of the weekdays disc No. 2A and every month said division No. one is
turned to be in line with the weekday on which the new month begins.
[0078] 7-9-5 A wall hanger like No. 8 and a triangular flexible cursor like 4D are combined
to produce a cursor with its strings open by 360°/37.
[0079] 7-9-6 The two discs are fastened with respect to each other for the duration of the
month, and every day the circular calendar assembly is rotated by one division, and
the new weekday is read on the weekdays disc No. 2A in between the strings of the
cursor No. 4D and its corresponding date is read below it, on the months' disc No.
3C.
[0080] 7-9-7 To lock the calendar assembly in a fixed position for the whole month, an eccentric
spring loaded pin (not shown) is housed in a slot on disc No. 2A, which pin engages
in one of 7 notches cut on disc 3C to lock the two discs to each other.
[0081] 7-9-8 The accessories numbered 5, 5a, 9, 15, and 15X, etc. are similar to those described
in Fig. 1.
[0082] 7-10 (See Fig. 10, 10X)
[0083] 7-10-1 Fig. 10 shows a perpetual circular calendar consisting of a plurality of concentric
rings marked on superimposed variable sized discs like the weekdays disc No. 2B, and
two sets of 6 smaller back to back discs like No. 3D, 3E representing the 12 months
of the year, with the whole assembly of discs rotating around a central pin like No.
26.
[0084] 7-10-2 The larger weekdays disc No. 2B is marked with the weekdays at opposite sides
in the same way described for Fig. 9.
[0085] 7-10-3 The set of 6 smaller discs like No. 3D, representing the first 6 months of
the year, are installed on one side of the weekdays disc No. 2B while the 6 other
discs No. 3E are installed at the opposite side of the said weekdays disc.
[0086] 7-10-4 The 12 discs No. 3D, 3E, represent the 12 months of the year and each one
of them is marked around its periphery outside the border of the adjacent concentric
disc with consecutive numbers equal to the number of days in the month it represents,
said numbers occupy divisions, having the same number of degrees as the weekdays division
on disc No. 2B.
[0087] 7-10-5 Once a year the months' discs are adjusted with respect to the weekdays disc
in the manner described for Fig. 1 and Fig. 9 and are locked with repect to the said
weekdays disc by means of:
A - Eccentric pin (not shown) passing through one of a plurality of corresponding
holes perforated along the same circle on each of the 13 discs of the calendar assembly.
B - Detachable gluing/sticking means, (velcro, or the like) in between the various
discs.
C - By pressing the assembly in between opposite transparent plates as described for
Fig. 8, or the like.
[0088] 7-10-6 In certain cases the circular calendar consists of circular concentric rings
of a certain thickness, replacing the discs, rotating inside each other with a central
pin for the whole assembly. In such case, the 12 months of the year would be shown
on one side of the calendar, otherwise, the oppositely marked months' rings have to
be adjusted every 6 months with respect to the weekdays ring.
[0089] 7-10-7 The said circular calendar is adaptable for a large wall calendar and for
a pocket calendar, or the like.
[0090] For a wall calendar the assembly uses:
[0091] 7-10-8 (See Fig. 10W) Trifork transparent opposite plates used in conjunction with
circular calendars using thick concentric rings rotating around each other.
[0092] The weekday is shown through the provided window and its corresponding date is read
beside the indicated month above a flexible band like No. 30 (not shown) slided monthly
on the arm of the trifork plate.
[0093] The opposite trifork plates are installed at the opposite sides of the concentric
rings and pinned together with the said rings to prevent them from falling apart.
[0094] 7-10-9 (See Fig. 10X) A combined hanger with a triangular flexible cursor as described
for Fig. 9, with a month indicator pin like No. 15, the same as described for Fig.
5X.
[0095] To hold this type of circular calendar in place the strings of the flexible cursor
are made double at opposite sides of the said calendar and are passed through small
rings or beads above the circular calendar which beads, when pulled down they clamp
the opposite strings of the said cursor, against the calendar periphery and prevent
it from rotating.
[0096] 7-10-10 An additional baseboard connected to the calendar assembly through its central
pin with the flexible cursor fastened to the supporting baseboard, and with a separate
wall hanger on the said supporting baseboard.
[0097] 7-10-11 Thin concentric rings supported on a baseboard by means of Chicago screws,
fasteners, snaps or the like mounted in between the adjacent concentric rings with
certain allowance to rotate the rings around the said fasteners.
[0098] 7-10-12 Thin flat rings for the weekdays and the months of the year adjusted, once
a year, with respect to each other and pressed in between two transparent plates or
temporarily stuck or glued on or in between transparent plates.
[0099] For a pocket calendar, the calendar assembly uses:
[0100] 7-10-13 (See Figs 10Y, 10Z) Transparent double cursor as shown in Figs. 10Y, 10Z
rotating around the central pin No. 26, joining the whole disc assembly.
[0101] Said cursor represents one arm of the trifork plates described in Fig. 10W.
[0102] To lock the cursor in place with respect to the general discs assembly, a system
is used, consisting of a slot with a spring loaded pin mounted on the transparent
cursor and engaging through notches cut at the periphery of the largest disc in a
similar way to the system described for Fig. 9 and 10, No. 27, 28, 29, or the like.
[0103] 7-10-14 A simplified reference system (not shown) consisting of an elastic string
fastened at its opposite ends to the opposite sides of the central pin No. 26 joining
the whole discs assembly, and stretched out to engage in one of the 37 notches like
No. 28A (Fig. 10).
[0104] Every day said elastic string is stretched, pulled out and positioned in the following
notch over the new weekday to indicate the current day.
[0105] The current month is indicated by means of a small bead tightly slipped on the said
string and positioned opposite the current month.
[0106] Each month, the said bead is slipped along the said string and positioned in front
of the following month to indicate said month.
[0107] The notches cut around the periphery of the circular calendars, whether wall calendars
or pocket calendars are also used as holding points for colour display means to show
at a large scale the current weekday and its corresponding date.
1 - A perpetual advanced calendar using in combination, a plurality of parallel strips,
divided into equal divisions, with means to keep them in a proper position with relation
to each other, and with the first strip marked with a number of consecutive weekdays
equal to the number of days in the longest month, in the calendar system under consideration,
plus 6, occupying individually an equal number of divisions on the said first strip,
while the additional strip is marked with consecutive numbers beginning with 1 and
equal to the number of days in the longest month of the calendar system under consideration,
occupying individually an equal number of divisions on the said additional strip,
with the division marked No. 1, positioned always in the zone of the first week on
the first strip, and re-aligned each month in line with the weekday on which that
month begins, with a separate identification of the current month and a proper covering
of the excess numbers at the end of the said additional strip.
2- A perpetual calendar as in Claim 1, mounted on a main baseboard with the strips
mounted in between guides fastened to the said baseboard, the first strip marked with
37 consecutive weekdays and the additional strip with numbers from 1 to 31, using
one letter alphabet common variable symbols at one end of the additional strip to
identify the current month and similar common symbols placed on the main baseboard
to identify the current year, holding points on the main baseboard located at the
intersections of the main lines of large scale one letter alphabet common variable
symbols to be used as points of attachment for coloured display means to show on a
large scale, the current weekday and its corresponding date, and with a transparent
cursor sliding on a guide mounted over the said strips and provided with a window
through which the current weekday and its corresponding date are instantly identified.
3 - A perpetual calendar as in Claim 2 having 12 additional strips representing individually
the 12 months of the year with the said 12 strips mounted in between guides fastened
to the main baseboard where the said 12 strips are aligned individually once a year
with regard to the weekday on which each month begins, where a long cursor is used
to identify the current weekday and its corresponding date through its long window,
which window is marked with the names of the 12 months of the year in line with the
strips representing said months while the current month is identified with a marker,
an elastic band, or the like wrapped around the suspended arm of the said cursor and
is slipped every month to the next month to identify said month.
4 -A perpetual calendar as in Claim 1, made in a foldable pattern, using a short baseboard
supporting the first strip representing the weekdays with opposite pairs of flexible
transparent suspenders supporting 12 additional strips representing individually the
12 months of the year, which suspenders are interconnected to each other in between
the individual strips thereby providing adequate lateral guides to said 12 strips
which are slid once a year and adjusted with respect to the first day of each month
and the weekday on which said month begins, with the resulting assembly; a) joined
end to end and rotated around a central shaft in a belt like pattern with the weekday
strip separately fixed outside said belt; b) or suspended in a venetian blind pattern,
while a flexible cursor sliding along a guide mounted on the supporting baseboard,
consisting of a plurality of strings suspended in front of the whole assembly, with
weights, beads or the like at the bottom of said strings to keep them stretched and
with a pin held in between opposite twists made along the said strings which pin could
be rolled up and down along the said strings moving the supporting twists with it
to be positioned opposite the strip representing the current month to identify said
nonth while the current day is identified on the weekdays strip in between the suspended
strings of the said cursor, where, in addition to that, the top baseboard supports
a minimum of 3 chains suspended all along the said calendar to be used as holding
points to support coloured display means for alpha numeric common variable symbols
showing on a large scale the current weekday and its corresponding date.
5 - A perpetual calendar as in Claim 1, made in a cylindrical rotative pattern having
the first strip, representing the weekdays fastened longitudinally along a transparent
first cylinder while additional 12 strips representing the 12 months of the year are
mounted longitudinally along a second internal transparent cylinder, in a parallel
position to the weekdays strip, with means to hold them along the cylinder while
keeping them adjustable with respect to the weekdays strip, with both cylinders supported
on a main chassis that is suspended from a wall hanger, supported on a desk stand
or the like and with means to rotate the inner cylinder with respect to the outer
one where each year, the 12 strips representing the 12 months of the year are adjusted
with respect to the weekdays strip to have the first of each month in line with the
weekday on which it begins, where each month the inner cylinder is rotated to bring
the new month in an adjacent position to the weekdays strip while an indicator is
mounted on a horizontal string stretching over the weekdays strip, in between the
opposite ends of the supporting chassis or the suspending hanger, which indicator
that is consisting of a coloured chain or the like, is slid over the said horizontal
string and hangs over the weekdays strip to indicate the current weekday on the outer
cylinder and its adjacent corresponding date on the inner one, where, in addition
to that, a minimum of 3 chains are suspended from the main chassis or from the hanger
supporting it, to be used as holding points to support coloured display means for
alpha numeric common variable symbols showing on a large scale the current weekday
and its corresponding date.
6. A perpetual calendar as in Claim 1, made in a slide rule pattern, having the first
strip representing the weekdays marked at its opposite sides and 6 additional strips
representing at their opposite faces the 12 months of the year and installed in 3
pairs back to back inserted together with the weekdays strip into a flat transparent
casing, adjusted, 3 months' strips at a time on each face of the casing with respect
to the weekdays strip with a spring loaded longitudinal squeezer plate or the like
pressing down the set of plates inside the transparent casing and with an external
transparent double cursor in a form of a flat sleeve over the transparent casing to
indicate along reference lines marked on it, the weekday and its corresponding date
on either side of the transparent casing and every 6 months the six strips are reversed
back to back and adjusted to show the following 6 months of the year while on the
other hand the opposite longitudinal edges of the transparent casing are provided
with notches to be used in conjunction with a central longitudinal band wrapped at
mid distance in between the opposite notches, as holding points to support coloured
display means for alpha/numeric common variable symbols showing on a large scale
the current weekday and its corresponding date.
7 - A perpetual calendar as in Claim 1, having 12 additional strips representing individually
the 12 months of the year, set in a parallel position, adjusted in relation to the
weekdays strip and held in place; a) by detachable gluing/sticking means on a common
baseboard; b) by means of baseboard and sticking transparent film in the same way
as photos in a photo album; c) by having the strips made of a certain thickness, stacked
and pressed against each other to hold them in place; d) by pressing the said strips
in between opposite transparent plates, tightly bolted to each other across the said
strips, or the like which assembly is opened once a year to adjust the months' strips
in relation to the weekdays strip while a flexible cursor is slid at the upper edge
of the said transparent plates to show in between its strings the current day and
its corresponding date, which date is indicated. by means of beads or the like installed
along the strings of the said cursor which strings are restrung through the beads
to allow the said beads to be moved up and down along the said strings and to be held
opposite the current month to indicate that month while notches are made on the periphery
of the transparent plates to be used in conjunction with central pins made across
the opposite plates as holding points to support coloured display means, for alpha
numeric common symbols showing on a large scale the current weekday and its corresponding
date.
8 - A perpetual advanced calendar using in combination, a plurality of circular concentric
rings, divided into equal divisions, occupying equal number of degrees, with means
to keep them in a proper position in relation to each other, and with a first ring
marked with a number of consecutive weekdays equal to the number of days in the longest
month, in the calendar system under consideration, plus 6, occupying individually
an equal number of divisions on the said first ring, while the additional ring is
marked with consecutive numbers beginning with 1 and equal to the number of days in
the longest month of the calendar system under consideration, occupying individually
an equal number of divisions on the said additional ring with the division housing
number 1, positioned always in the sector of the first week on the first ring and
realigned each month in line with the weekday on which that month begins, with a
separate identification of the current month and a proper covering of the excess numbers
at the end of the daid additional ring.
9 - A perpetual circular calendar as in Claim 8, having the first ring marked with
37 consecutive weekdays occupying individually 37 divisions equal to 360°/37 each,
while the additional ring is marked with numbers from 1 to 31 occupying individually
31 divisions, equal to 360°/37 each, and with one letter alpha numeric common variable
symbols at one end of the said additional ring to remark said variable symbols each
month to identify the new month, while the said rings are separately marked on different
size superimposed discs, having the same central point and joined together with a
central pin around which the whole circular calendar rotates with an eccentric pin
joining the set of discs, through corresponding holes, slots, notches or the like,
made around the same circle on each one of the discs, to lock the discs together,
where each month the eccentric pin is removed and the set of discs are rotated to
have the No. 1 of the new month on the additional disc, re-aligned with the weekday
of the first disc, on which the new month begins, while the whole assembly is suspended
from its central pins, by means of a combination of a hanger/triangular flexible cursor,
with its strings opened by 360°/37 and each day the circular calendar is rotated around
its central pin by one weekday division to show the new weekday on the first ring
and the corresponding date on the adjacent additional ring, in between the triangular
strings of the said cursor, where the outer disc of the said circular calendar is
provided with notches that are used in conjunction with an extension of the said central
pin, as holding points to support coloured display means for alpha numeric variable
symbols, showing on a large scale the weekday and its corresponding date.
10 - A perpetual circular calendar as in Claim 9, having the first ring or disc showing
the weekdays, represented on the outermost disc with 12 additional concentric rings
representing the 12 months of the year, marked separately on 12 different size superimposed
discs, where each year the eccentric pin is removed and all the 12 months are re-aligned
with respect to the first day of each month and the weekday on which each month begins,
and to identify the date of the month on any of the 12 discs, the opposite strings
of the triangular cursor are twisted and a pin is passed through said twists which
pin could be rolled up and down along the strings of the said cursor moving the supporting
twists with it and could be positioned in front of the disc representing the current
month to identify said month, while to lock the circular calendar and prevent it from
rotating with respect to its combined hanger/cursor, double front and back opposite
flexible cursors are installed where the strings of the said opposite cursors, are
inserted, beyond the outer disc, through a narrow slot, separate beads or the like,
which beads are pulled up to allow the rotation of the calendar assembly or pulled
down to clamp the discs in between the strings of the opposite cursors, and prevent
them from rotating.
11 - A perpetual calendar as in Claim 10, having the 12 rings representing the 12
months of the year installed back to back, 6 on each side with the first 6 months
of the year on one side and the following 6 months on the opposite side which rings
are; a) represented on the largest concentric rings possible, marked on superimposed
discs; b) marked on the opposite sides of thick rings rotating around each other with
a common central point, adjusted every 6 months with respect to the weekdays and locked
in place by means of interconnected pins, transparent tape band, pressure in between
opposite transparent plates, pins at the joint circles, or the like; c) marked on
the opposite sides of thin rings and pressed in between transparent plates where the
whole assembly is opened once every 6 months to be adjusted with respect to the first
of each month and the weekday on which it begins.
12 - A perpetual circular calendar as in Claim 8, adapted for a miniature pocket calendar,
having the first ring representing the weekdays marked with 37 weekdays on an outer
disc, while the second ring is represented by 12 smaller concentric rings, representing
individually the 12 months of the year, on 12 superimposed discs, or the like, installed
back to back 6 on each side where the whole assembly is adjusted every 6 months or
every year with respect to the weekdays and locked in place by means of an eccentric
pin, or the like, while the current weekday is indicated by; a) a transparent double
cursor, rotating around the central pin that joins the whole calendar assembly, which
cursor is provided with a transversal trapezoidal window on each side, marked with
the name of each month, in line with the ring representing said month and every day
the said transparent cursor is rotated by one weekday division to show the new weekday
on the outer weekdays ring and its corresponding date, on the ring representing the
current month, identified by an elastic band or the like, slipped along the arm of
the said cursor; b) an elastic string tied at its opposite sides to the opposite ends
of the central pin and stretching out to engage through notches indented at the division
lines on the outer periphery of the weekdays disc and every day said elastic string
is moved from one division notch to the following one to indicate the new weekday,
while the corresponding date is indicated on the rings representing the current month
opposite a small bead, clamp, or the like, slipping tightly along the said elastic
string and positioned opposite the ring representing the current month to identify
that month.
13 - A perpetual calendar as in Claims 1 to 12, combining a plurality of calendar
systems, like the Gregorian calendar, combined with the Chinese calendar, the Middle
East calendar, the Biblical calendar, or the like, all of which could have short months
based on the moon cycle, which combined calendar would have additional 12 strips,
rings, or the like, installed in a parallel or concentric position with the original
strips, for example one strip representing a month of the Gregorian calendar and next
to it a strip representing a month of the shorter moon calendar or that the 12 strips
representing the Gregorian calendar are installed on one side and the 12 strips representing
the corresponding calendar installed back to back on the opposite face of the Gregorian
calendar with a double cursor showing the weekday and its corresponding date on one
face on the Gregorian calendar, while the opposite cursor shows the weekday and the
corresponding date on the moon calendar at the opposite face of the assembly, where,
in such case, one of the calendar systems should have each of the 28 or 31 divisions,
or the like, represented on each strip, to be independently removable from one strip
and insertable in the other strip through special guides, or the like, so that the
numbers with the divisions carrying them could be removed from one strip or ring and
inserted into the other to compensate for the shortage or the excess numbers in between
the corresponding strips.