US1948576A - Perpetual calendar - Google Patents

Description

Feb. 27, 1934. M. c. HALEY PERPEIUAL CALENDAR Filed April 24, 1933 Patented F eb. 27, 1934 PATENT oFFlcE PERPETUAL CALENDAR Martin C. Haley, Detroit, Mich. Application April 24, 1933. Serial No. 667,537

5 Claims.

This invention relates to a perpetual calendar. The invention is concerned particularly with certain improvements in a calendar of the type covered by my Patent No. 1,846,551 of February 23, 1932. This type of calendar consists in an arrangement where the days of the month are disposed in a circle or otherwise form a closed area and indicators or pointers are directed in a radial direction and point to the days of the month which are Sundays. The patent covers this type of calendar where each month is printed on a separate sheet of paper and adapted to be torn off or removed, and also a mechanical arrangement for perpetual use.

Some months have four Sundays and some months have five` Sundays, and accordingly, in such a calendar some months require four pointers or indicating devices and some require five. The present invention has as its principal object the provision of a mechanical structure wherein upon the setting of the device to show a month with five Sundays in it the fifth pointer or arm will automatically appear and indicate the fifth Sunday. Briefly, the calendar comprises an adn justable arrangement with four pointers or indieating devices thereon which may be in the form of printed, painted, or etched indicia; there is an equal spacing between the first and second, second and third, third and fourth pointers so that wherever these pointers or indicating devices are set, the first four Sundays in the month are indicated, and where a month only has four Sundays, all of the Sundays in that month are indicated. However, should there be a fifth Sunday in the month, such indicia therefor is automatically displayed when the said four indicators set to indicate the first four Sundays.

Fig. 1 is a face View of the calendar constructed in accordance with the invention showing the month of April, 1933.

Fig. 2 is a similar view of the same calendar adjusted to show the month of May, 1933, with parts cut away to illustrate the arrangement of the indicia for the fifth Sunday.

Fig. 3 is an enlarged sectional view taken substantially on line 3-3 of Fig. 1.

The structure may be simplified and formed from sheet metal stock. Cheaper calendars may be formed from paste board or Celluloid or the like. The structure shown herein which exemplifies the invention has a base member 1 (Fig. 3) superimposed upon which is a filler plate 2. This filler plate may have a central opening in which is rotatably mounted a ring member 3. Within the ring member 3 there may be another filler element 4 attached to the base and which may have a raised or embossed central pivot portion 5. Placed over the member 4 is a disc 6 having a central aperture 7 fitting over the raised part 5 and a depressed edge 8 which may lie under o a top plate 9, which top plate has preferably a central aperture into which the offset 10 of the member 6 substantially fits. Fastening devices 11 may pass through the top plate, plate 2 and into the base for holding the parts in assembly.

The ring 3 may be provided with suitable indicia to show the months of the year, and a part of the same may be arranged tc be exposed through an opening 15 in the plate 9. The ring 3 may be rotated as desired by catching a sharp instrument into openings 16 therein.

On the plate 9 near its central aperture the days of the month may be indicated by suitable markings as illustrated by the indicia of Figs. 1 and 2. The days of the month may be arranged in circular fashion as shown or in the form of any other substantially closed area. Suitable pointers a, b, c, and d are exposed upon the surface of the disc 6. These may be formed in any suitable manner, as for example, by painting, etching, printing, or otherwise showing the same. The disc 6 has a radially extending aperture therein as indicated at 17. The filler element 4 is preferably provided with three arrows or pointers as illustrated at e, f, and g.

The filler element 4 and the face plate 9 are, of course, fixed members and do not shift relative, to each other. The pointers e, y, and g are positioned so as to point to the 29th, 30th, and 31st days shown on the top plate 9. Now it will be obvious that any time a month has ve Sundays in it, that the fifth Sunday falls on one of the last three days of the month, viz. the 29th, 30th, and 31st. By the same token the first Sunday must fall upon the 1st, 2nd, or 3rd of the month. Therefore, the spacing between slot 17 and the arrow a is preferably such that when the slot is aligned with the 29th, 30th, or 31st days, the arrow a is aligned with the 1st, 2nd or 3rd days respectively. The surface finish of the disc 6 and the finish of the upper surface of the iiller element 4 is preferably similar so that the opening 17 is not particularly apparent.

The calendar is used as follows: As the months change, the ring 3 is moved to expose the proper indicia. Also, as the months change, the disc 6 is rotated to properly position the arrows. The disc 6 may be turned by the fingers or by engaging an instrument in the aperture 17 or by other suitable means. In adjusting the calendar, say

to the month of April, 1933, the operator adjusts the arrow a to the first Sunday of the month which is the 2nd. This automatically positions the arrows b, c, and d to the 2nd, 3rd, and 4th Sundays. Also, this automatically positions the opening 17 over the arrow f on the plate 4 which points to the 5th Sunday on the 30th. If the rst Sunday was on the 1st of the month, then the fth Sunday would be on the 29th, and the arrow e would be exposed. If the first Sunday was on the 3rd, the arrow g would be exposed showing the fifth Sunday on the 31st. Now, in adjusting the calendar, say to the month of May, 1933, as illustrated in Fig. 2, the disc 6 is rocked to position the arrow a to point to the first Sun day which is on the 7th. This automatically positions the arrows b, c, and d to the 2nd, 3rd and 4th Sundays, and the arrows e, f, and g are covered. The slot er opening 17 in this particular instance is lined up with the 3rd of the month but where the surfaces of the members 4 and 6 are similar the opening may be rendered inconspicuous.

I claim:

, 1. A calendar comprising, means having the days of the month arranged substantially in a closed area, a rotatable member within the area, indicating means on the member adapted to point respectively to the rst four Sundays of the month, said rotatable member having an opening therein located with respect to the indicating means for the first Sunday so as to be located at the fifth Sunday in a month, and indicating means for each of the last several days of the month located underneath the rotatable member and adapted to be exposed by said openmg.

2. A calendar comprising, means having the days of the month arranged substantially in a closed area, a rotatable member within the area, indicating means on the member adapted to point respectively to the rst four Sundays of the month, said rotatable member having an opening therein located with respect to the indicating means for the first Sunday so as to be located at the fth Sunday in a month, and indicating means for each of the lastl several days of the month and similar to the indicating means on the rotatable member and located underneath the rotatable member and adapted to be exposed by said opening.

3. A calendar comprising, means having the days of the month arranged substantially in the VLegame form of a closed area, a rotatable member within the area, indicating means on the rotatable member spaced with respect to each other so as to point respectively to the rst four Sundays of a month, indicating means which may be concealed by the rotatable member and pointing to each of the last several days of a month, said rotatable member having an opening therein of such size as to expose one of the underneath indicating means and to cover the others, and said opening being located with respect to the indicating means for showing the rst four Sundays of the month whereby a proper positioning of the rotatable member to indicate the rst four Sundays of the month automatically locates said opening at the fifth Sunday of the month and eX- poses the indicating means therefor.

Ll. A calendar comprising, means having the days of the month arranged substantially in the form of a closed area, a rotatable disc within the area, four pointers on the disc fiXedly located with respect to each other, said disc being rotatable to position the pointers so that the same point respectively to the first four Sundays of a month, a series of three pointers pointing respectively to the 29th, 30th, and 31st days of 'the month and located under the disc whereby 'the same may be concealed thereby, said disc having an opening of such size as to expose one pointer only when the disc is properly positioned to indicate the first four Sundays of a month.

5. A calendar comprising, means having the days of the month arranged substantially in the form of a closed area, a rotatable disc within the area, four pointers on the disc xedly located with respect to each other, said disc being rotatable to position the pointers so that the same point respectively to the first four Sundays of a month, a series of three pointers pointing respectively to the 29th, 30th, and 31st days of the month and located under the disc whereby the saine may be concealed thereby, said disc having an opening of such size as to expose one pointer only when the disc is properly positioned to indicate the first four Sundays of a month, said opening being so positioned with respect to the pointer for indicating the first Sunday of the month that said opening is positioned automatically in alignment with the day which is the fth Sunday of the month upon positioning the disc to show the rst four Sundays of the month.

MARTIN C. HALEY.

Images