US1115819A - Perpetual calendar. - Google Patents

Description

J. E. HILL.- PERPETUAL CALENDAR. PPLIOATION FILED JAN. 1o, 1911.

Patented Nov. 3, 1914.

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JOHN E. HILL, 0F BOSTON, MASSACHUSETTS.

c ERPETUAL CALENDAR.

Specification of Letters Patent.

Patented Nov. 3,y 1914.

Application filed January 10, 1911. Serial No. 601,909.

To all whom t may concern Be it known that I, JOHN E. I-IILL, a eitizen of the United States, residing at Boston, county of Suimiolk, State of Massachusetts, have invented an Improvement in Perpetual Calendars, of' which the following description, in connection with the accompanying drawing, is a speciication, like characters on the drawing representing like parts.

This invention has for its object to provide a no-vel perpetual calendar which is very simple in its construction and which can be easily manipulated to set it for any month in any year.v y

The features wherein the invention resides Will first be described and then the novel features will be pointed out in the appended claim. c

Referring to the drawings, Figure 1 is a front vieiv of a calendar embodying my invention; Fig. 2 is a section on the line :za-a2, Fig. 1.

The calendar comprises a main body or backing 3 which may be of cardboard, sheet metal, or any suitable sheet material. This body 3 is provided With an aperture l through which some portion of a movable month-indicating member 5 can be seen. This month-indicating member is in the form of a strip of paper, cardboard or similar material, which lies against the back side of the backing 3 and passes under a guide or loop 6 secured to the backing, said guide preferably being situated directly in line With the opening 4 so that the portion ot' the strip 5 which is visible through the opening Will be held closely against the backing. This strip 5 has imprinted on its face the months of the year, as shown in Fig. 1, and by moving it up and down, the imprint designating any month niay be brought into line with the aperture t so that it Will be visible therethrough. As shown in the drawings the backing member 5 is set to display the Word January Pivotally mounted on the front of the backing member 3 is a disk 7 having imprinted thereon the days of the Week. Said disk is pivoted centrally to the backing member and may be secured thereto in any suitable Way, as by means of a rivet 8. The disk has imprinted on its face the days of tive full Weeks, that is, thirty-five successive days are displayed on the disk, as Clearly seen in Fig.- 1.

Pivotally mounted on the pin 8 is a pointer or indexmember 9 Which can be moved 'around said pin as a center, said pointer overlying the front tace ot the disk 7 and lying thereagainst. The backing 3 has imprinted thereon directly outside of the disk 7 and adjacent the periphery there-` ot the numbers from onel to thirty-one, as shown at 10, and these numbers are so spaced that one number Will come opposite each of the days marked on thedisk 7. The pointer 9 is long enough to extend beyond the disk 7 and point to or overlie the num` bers 10. The disk 7 can be turnedl through a limited arc to permit it to be set for different months, and as herein shown said disk is provided With a thumb-piece 11 which is secured to the back side thereof and which extend through a segmental slot l2 formed in the backing member, said thumb-piece being bent back on itself, as at 13, to frietionally rest against the back side of the backing. 3. r'The kthumb-piece 11 Will be preferably resilient, and the portion 13 thereotvvill bear against the backing 3 With suliicient pressure so that said `member Will act frictionally to hold the disk in any adjusted position.

It vvill be understood, kof course, that they pointer 9 mustbe adjusted `torwardjone step on each day of the month tvhile the disk 7.

and the strip 5 need to be adjusted only at the beginning of each month. If, for in-` stance, the calendar is to be set to indicate January 1, 1911, which comes in on Sunday, the strip 5 Will be adjusted to expose the Word January through'the opening 4,

as shown in the drawings. The disk 7 is then adjusted so as to bring the designation Sun. opposite the figure 1 which will position the disk 7 correctly relative tol the numbers 10 sothat by comparing the desig nation for any day on the disk 7 with the number standing opposite it, it can ybe readily observed on What day of the month any day of the Week occurs, and on What day of the Week any day of the month ooours. The pointerv 9 Will then be set to point to l as shown in the drawing, and the calendar will read Sun. January l. On the next `day the pointer 9 Will be advanced to indicate the ligure 2 for Mon. January 2, and so on through the days of the month. It Will be observed that J anuary runs out on a Tuesday, and consequently February comes in on a Vednesday. Therefore, at the end of the month it is necessary to shift the disk 7 backwardly sufficiently to bring the designation IN/ved. opposite the ligure l and then to advance the pointer 9 to said figure 1. Atthe same time the strip 5 must be adjusted to expose the Word February February runs out on av riuesday, and March comes in on a lVednesday, so that the disk 7 will require no Jfurther adjustment tor March. March runs out on a Friday, so that in order to adjust the disk 7 for April Will require setting it so that the designation Sat will come opposite the figure l One of the advantages of the calendar lies in the fact thatthe disk 7 has live full Weeks imprinted thereon, and there are, therefore, four days which stand opposite the gap betvveen the numbers 3l and l. By this ar rangement, the disk 7 may be adjusted for any month with less confusion than it i: had only 31 designations thereon.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is In a perpetual calendar, the combination with a backing having a sight opening, of a movable member behind the backing bearing the months of the year and adapted to be moved to expose any month through the sight opening, a disk pivoted to the front of the backing and bearing the days for ve full Weeks, a pointer pivotally mounted concentrically of the disk and overlying the latter, said backing having the days of the month printed thereon adjacent the periphery of the disk, said numbers having the same spacing angularly as the designations on the disk, said backing having a segmental slot in a portion that is covered by the disk, and a thumb-piece rigidly secured to the disk, extending through the slot and overlying and frictionally bearing against the back face of the backing, said thumb-pies constituting a means for adjusting the' disks and frictionally holding the same in adjust ed position.

In testimony whereof, I have signed my name to this speciiication, in the presence of two subscribing Witnesses.

` J OI-IN E. HILL. Wvitnesses LOUIS C. SMITH, THOMAS J. DRUMMOND.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Yatents.

Washington, D. C.

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