US2411185A

US2411185A - Perpetual calendar

Info

Publication number: US2411185A
Application number: US578294A
Authority: US
Inventors: Bernstein Louis
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-02-16
Filing date: 1945-02-16
Publication date: 1946-11-19
Anticipated expiration: 1963-11-19

Description

Nov. 19, 1946. BERNSTEIN PERPETUAL CALENDAR 3 Sheets-Sheet 1 Filed Feb. 16, 1945 VINVENTOR. Louls BERNSTEIN Nov. 19, 1946. L. BERNSTEIN 2,411,185

PERPETUAL CALENDAR Filed Feb. 16, 1945 3 Sheets-Sheet 2 INVENTOR. [ouls BERNSTEIN L. BERNSTEIN PERPETUAL CALENDAR Filed Feb. 16, 1945 3 Sheets-Sheet 3 m .E R mw m :V

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Nov. 19, I946.

Patented Nov. 19, 1946 UNITED STATES PATENT OFFICE PERPETUAL CALENDAR Louis Bernstein, Brooklyn, N. Y. Application February 16, 1945, Serial No. 578,294

3 Claims.

This invention relates to new and useful improvements in calendars, and has more particularly reference to perpetual calendars.

More particularly the invention proposes a perpetual calendar which is characterized by a support sheet having an opening for viewing a year plate. It is proposed to movably mount the year behind said support sheet so that each year it may be turned to a new position and display the number of the year through the opening in said support sheet.

The invention proposes to turnably mount a small day of the week disc, and a medium month disc, and a large numeral disc coaxially with each other on the front tionary indicator is mounted on said support sheet and extends across said discs, and is provided with window openings for displaying one notation of eachof said discs. 7

The invention also proposes imprinting the support sheet at areas around the large numeral disc with sections indicating the months, and sections indicating the holidays contained in each of the months.

The invention also proposes a modified form of perpetual calendar, embodying means for holding the discs from turning and adjustably to free the discs individually, or as a unit so that the discs may be individually turned or turned as a group. p Still further the invention proposes the construction of a perpetual calendar as briefly described, which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying'drawings forming a material part of this disclosure:

Fig. 1 is an elevational View of a perpetual calendar constructed in accordance-with thisinvention. l

Fig. 2 is a perspective. View of the calendar shown in Fig. 1 but drawn on a reduced scale.

Fig. 3 is a vertical sectional view taken on the line 3-3 of Fig. 2.2 i

Fig. 4 is a front elevational view of a perpetual calendar constructed in accordance with a modified form of this invention.

Fig. 5 is a fragmentary enlarged detailed View of a portion of Fig. 4.

of said support sheet. A star months of the 7 support sheet Fig. 6 is a fragmentary enlarged vertical sectional view taken on the line 6-6 of Fig. 5.

Fig. 7 is a fragmentary enlarged sectional view taken on the line 7'! of Fig. 6.

Fig. 8 is a fragmentary enlarged horizontal sectional view taken on the line 8-8 of Fig. 6.

The perpetual calendar, in accordance with that form of the invention disclosed in Figs. 1 to 3 inclusive, includes a support sheet In having anopening II for viewing a year plate I12 which is rotatively mounted upon a pintle pin 4 3 supported on the support sheet Iii. The year plate 82 is imprinted with numbers, representing the years, which are viewable through the opening I2 when the year plate is turned to various positions.

As illustrated on the drawings it is in a position in which the year 1945 is displayed. It may beturned to display subsequent years, as needed. The support plate I ii is provided with alarge top area I5 which may be imprinted with a picture, or a puzzle, or other material to make the calendar attractive, and decorative.

A small day of the week disc I 1 is superimposed upon a medium month disc I 8, which in turn is superimposed upon a large numeral disc I9. These discs are coaxial with respect to each other, and are coaxially turnably mounted on said pintle pin 13. These discs are'provided with serrations 2| upon their edges by which they may be conveniently turned. The discs I! and I 8 are separated from each other by afriction washer 22. The discs lBand l9 are separated from each other by a friction washer 23, and the disc [9 is separated from the support sheet H] by a friction washer 24. These friction washers are mounted on the pintle pin I3. They serve to hold the said discs against free turning. However, each disc canbe manually turned.

The day of the week disc I! is divided into seven. peripheral areas imprinted with the days of the week; Monday, Tuesday, etc. The medium month disc I8 is divided into 12 areas which are imprinted with notations representing. the year, namely, January, February, etc. These areasare also imprinted with notations to indicate the numbers of days in each month, for example, January has 31 days, and February has 28 days, and leap years 29 days, etc. The large numeral disc I?! is imprinted with 31 areas numbered from 1 to days of the month.

The stationary indicator-His supported on the I ii and extends across said discs I'l, l9, and is provided with window openl8 and 31 and representing the the pintle pin. The support sheet l has a top opening 32 by which it may be hung up on a nail, or other support on a wall, or other object.

The support sheet It is also imprinted with a circular area 34 about the large numeral disc 19 which is formed with sections imprinted with the names of the months. Adjacent these sections 35 there are radiating sections 36 which are imprinted with the holidays contained in each I month. For example, the month of March is imprinted as having St. Patricks day on March 17.

The calendar is used by rotating the small day of the week disc l1 and the large numeral disc 19 each day so as to display the correct day. The medium disc I8 is turned each month so as to display the proper month. Theyear plate i2 is turned each year.

In Figs. 4 to 8 inclusive, a modified form of the invention has been disclosed which is very similar to the prior form distinguishing merely in the fact that means havelbeen provided for holding the discs ll, l8 and 19 from turning, and this means is adjustable to free the discs so that they may be turned individually, or as a unit. This means includes a slide plate 4-9 engaged across the back of the indicator 21 and having edge portions 4! engaged around the edges of the indicator 2?, and engaging cutouts 62 formed in the edge of the indicator 2'! by which the slide plate is limited to move a short distance upwards and downwards.

Leaf springs- 43 are mounted upon the bottom of the support block as and engage the top edge of the slide plate at normally urging it into its bottom position. The slide plate 40 has window openings 44 which are aligned with the window openings 28 of the indicator 2'! so as not to interfere with viewing the several discs through the window openings.

A plunger 46 is provided with each of the discs l1, l8 and I9 and each is slidably' mounted through a tubular socket ll fixedly mounted on the back of the slide plate til. The stationary indicator 2'! is formed with small ventical slots 48 through which the plungers 46 pass. These plungers 46 are square, in transverse cross section, and the sockets 41 are similarly shaped,

limiting the plungers to slide inwards and outwards, and restraining them from turning. Each plunger is provided with a knob t9 by which the plunger may be pressed inwards. Each plunger 4 has a small, spring 5!! located in back of the knob4-9 and acting against the front face of the stationar indicator 2] for normally urging the plunger 45 outwards Each plunger 45 has a tooth-like projection 51 onits inner end which normally engages the serrations 2! of said discs ll, l8 and 19. These tooth-like projections fixedly'hold the discsfrom bein turned.

The operation of this form of the invention is substantially identical to the prior form, distinguishing merely in the fact that it is necessary to free the discs ll, [8 and I9 before they may be turned. Each disc may be freed by pressing inwards the plunger d6 associated with the disc. When the knob 49 of a plungerilfi is pressed inwards, the tooth-like projection 5| will be ially turnably mounted a stationaryindicator supported on said support 4 moved back and out from the serrations 2! in the disc, and it may be turned.

If it is desired to free the discs l1, l8 and I9 simultaneously so that they may be turned, as desired, without interference, the flanges 4| of a slide plate 40 are manually gripped and moved upwards. Thus the slide plate 40 is raised, lifting all of the tooth-like projections 51 out from the serrations 2!. This is of particular advantage when the calendar was not used for some time and all of the discs are in wrong positions, and must be reset.

It is to be understood that this device may be used not only in connection with calendars but any other data may be inscribed on the various discs such as" information about geographical locations, mathematical calculations, etc.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus describedmy invention, what I claim as new, and desire to secure by United States Letters Patent is: l

1::A perpetual calendar, comprising a'support sheet having an opening for viewing a yearjplate, a serrated small day of the week disc superimposed on a serrated medium month disc superimposedon a serrated large numeral disc coaxially turnably mounted on said support sheet, afstationary indicator supported on 'said upport sheet and extending across'said discs and havingwindow openings for displaying one notation of each of said discs, a year plate turnably mounted in back of said support sheet, and means for holding said discs from turning and adjustably to free the discs individually, or as a unit, including a slide plate slidably mountedon said indicator and having window openings alignedwith the window openings of said indicator, resilient means for urging said slide plate downwards, a plunger for each of said discs mounted on said/slide plate through non-circular sockets, saidplungers being non-circular and complementary to said sockets, and tooth-like projections on the ends of" said plungers engaging theserrations on the discs. 7

2. A perpetual calendar, comprising a support sheet having anopening for viewing a year plate,

aserrated small day of the week disc superim-f posed on a serrated medium month disc super;

imposed on a serrated large numeraldisccoam, on said support sheet,

sheet'and extending across said discs and having window openings for displaying one notation of each of said discs, a year plate turnably mounted in back of said support sheet, and means for holding saiddiscs from turning and adlustably to' free the discs individually, or as a unit, including a slide plate slidably mounted on said indicator and having window opening-s aligned with the window openings of said indicator, resilient means for urging said slide plate downwards, a plunger for each of. 'saiddiscsmounted on said slide plate through non-circular sockets, said plungers being non-circular and complementary to said sockets, and tooth-like projections on the ends of said plungers engaging the serrationsv on the discs, and resilient means urging saidplungers outwards.

3. A perpetual calendar, comprising a support sheet having an opening for viewin a yearnplate',

a serrated small day of the week disc superimposed on a serrated medium month disc superimposed on a serrated large numeral disc coaxially turnably mounted on said support sheet, a stationary indicator supported on said support sheet and extending across said discs and having window openings for displaying one notation of each of said discs, a year plate turnably mounted in back of said support sheet, and means for holding said discs from turning and adjustably to free the discs individually, or as a unit, including a slide plate slidably mounted on said indicator and having window openings aligned with the window openings of said indicator, resilient means for urging said Slide plate downwards, a plunger for each of said discs mounted on said slide plate through non-circular sockets, said plungers being non-circular and complementary to said sockets, and tooth-like projections on the ends of said plungers engaging the serrations on the discs, edge portions of said slide plate being engaged around the edge portions of said stationary indicator.

LOUIS BERNSTEIN.