US1632393A - Desk calendar - Google Patents

Description

' 1,632, June 14, 1927. G w. ESAU 393 DES-K CALENDAR Filed Oct. 27. 1924 Z'Sheets-Sheet 1 INVENTOR. I

ATTORNEYS.

G. W. ESAU DESK CALENDAR June 14, 1927.

Filed Oct. 27,1924 1 z sheets -sneat 2 INVENTOR.

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Patented June 14, 1927.

PAT T-rt GEORGE, WALTERESAUMQF iviitwli unnn,. W sconsin.

DESK sewers?- npplicationnled October "27,1924. 7 Serial No. 746,033.

My invention relates to desk calendars,

and more specifically, to an improved mechanically operated desk calendar; One object of the invention is to provide a mechanically operated desk calendar of attractive appearance with indicia of suflicient size to make it a satisfactory calendaiyfas well as a mechanical ,toy. I

Another object is to provide for regular savings by requiring the deposit of coin each day to bring the calendar up, to date.

One of the primary diflicul ties in accomplishing the above object is in the provi on a-ndproper actuation of'separate indicating elements for theunits and tens digits ofthe number indicating the dateot the month, so that upon successive actuation, the indication willprogress to 31 and change to 1 on the next actuation; If the indicia are to be large enough to be easily seen and read at a glance,so that the device is really acalendar, it is obviously impracticable to have 31 numbers on a single indicating. element. This is apparent when it is considered that the numerals are tobe aninch high,'the diameter of the singlerotary indicatingfeflementcarrying numbers would need to be substantially one foot.

7 Another objectof the ,inventionis, therefore, to provide altransmissionbetween two indicating wheels, such that: the indication will increase by one upon each actuationup to 31 and on the next actuation return, not to Zero, ,but to one. I i i i lAnother object is to provide means for suitably indicating the montlisiin connection with the above mentioned meaiis for indicating the day ofthe m onth.

Further objects and advantages of my .invention will become apparent as the description proceeds. V

y In the accompanyingdrawings:

Fig. 1 is a front elevationo't an illustrative device embodying my invention, and

Fig. 2 is a central vertical sectionthr ugh theeasing and transmission, the indicating wheels being broken away rene in con struction more clearly.

Fig. Sis a section on line 33, Ot'Fig Q,

Figs. i and 5 are sections 911 lines" and 5-5 of Fig. 2; and

Fig. 6 is a section on line 44. the other direction. i

Fig. 7 is a detailsection on line 77 of Fig; 5.

looking in In the embodiment of myinvention sele cted for illustration, the entire casing 10 is preferablyformedfof a single sheet metal stamping. Suitableapertures are provided at 12 t'or mounting a transparent window, and at 14 for the admission of a coin, and the bottom of the casing is closed by a plate 16 provided with a door 18, preferably tastened closed position by a "spring catch 20.

The main pintle or shaft 222 extends longitudinally from end to .end and is riveted over outside the endsot the casing 10. The tens indicator 24 is carried on a sleeve 26 rotatable on shaft 22 and carrying at its e2:- treme'end's gear elements 28 and 30. The units indicator 32 is mounted on a sleeve 34c rotatable on sleeve 26 and carrying agear elem-ent 36 at its outer end. "The months indicator 38may be similarly mounted, but in this instance, the use of a sleeve is not necessary, and I- haveillustrated it as mounted directly on sleeve 26. It carries a gear ele' ment 4. 0 atits outer end. The primary drive means for these wheels comprises a plate 420i the same thickness as the coin to be employed, and having a plurality of serrations a4,;tl1irtyone in number, adapted to be successively engaged by successive coins to be rotated thereby one step at a time. Side plates a6; and 48 are suitably attached to" plate 42 and extend radially beyond the same-todefine a slot for receiving the coin. Two internal ring gears 50 and'52 are carried by plate 48, gear 50 lying in the plane of gear 36 gear 30.

"The interconnections between the parts for operating them in the proper sequence will now described. Each time a coin is inserted through aperture 14, it is held in operative engagement with one oi the serrations; a l by means of an inturned lip 5st on the casing, a sufficient. length of time to and gear 52 in the plane of move plate lQ. substantially one serration.

A suitable, spring 541- is provided, having a curved end to engage between the serrations and insure astep by step movement. Teeth of gear 50 mesh with an intermediate pinion 56, which pinion drives pinion 36 and the units indicator 32. As gear 50 is athirtyone toothed gear and: pinion .36 has ten teeth, each movement o'li plate 42 will. rotate the unitindicator 32 one-tenth of the revolution. This indicator. carries the series of indicia 1, 2, '3, a, 5, 6, 7, 8, 9, O.

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The tens indicator 24 is driven through pinion 30 and intermediate pinion 58 from ring gear 52, which has only four teeth spaced apart by intervals equal to ten, ten, nine and two actuations of plate Q2. The indicia carriedby indicator 2et comprise a series 1, 2, 3, blank, repeated three times, di-

viding the circle into twelve equal parts, and pinion 30 has twelve teeth. The parts are so assembled that tooth 30 will move indicator 2i from 3 to blank, after nine more actuations tooth 62 will move it from blank to l, after ten more actuations tooth Set will move it from 1 to 2, after ten more actua cator 32 reads 0. Upon the next actuation,

indicator will remain stationary, and the last tooth before space 68 willmove indi cator 32 from O to 1. On the next actuation, tooth will move indicator 2a from 3 to blank, but the movement of gear 50 will merely carry space 68 across, so that the first toot-h beyond it will engage pinion 56 on the next actuation. In this way, by driving bot-h indicators 21 and 32direct :trom plate 42 by independent transmissions, the correct sequence is obtained.

Gear 28 on the other endoi' sleeve 26 has three equidistantly spaced teeth, which mesh with an intermediate pinion 70 pivoted on the wall of casing 10. Pinion 70 is of double width, and is continuously in mesh with pinion it). It will be apparent that each time indicator 2a completes one-third of a revolution, one of the teeth of pinion 28' will move the months indicator 38 one step.

Suitable stop springs 72 are employed to prevent accidental displacement of each of the indicators, and assure step by step movement. I prefer to mount these springs on the end walls of casing 10, and to have them engage the intermediate drive pinion in each instance. The indicia carried by all three indicators should preferably be ot the same size, and the indicia on indicator 32 will be spaced further apart than on the other indicators. it should be noted that no indicater moves less than one-twelfth of a revoployed if thirty-one indicia were to be carried on a single indicator.

Without further elaboration, the foregoing will so fully explain the gist of my invention,that others may, by applying current knowledge, readily adapt the same, for use under various conditions of service. It will for instance be obvious, that the shape or" the casing may bevaried according to any one of a large number of pleasing designs, and that the sloping sides illustrated in the embodiment shown in the drawings may becorrugated to retain pens and pencils, if desired. 7 These and many other modifications and alterations. may readily be.

made without eliminating certain features which may properly be said to constitute the essential items oi novelty involved, which items are intended to be defined and secured to me by the following claims.

I claim as follows:

1. In a calendar of the class described, the combination of a housing, a shaft extending through and secured to the housing walls, a sleeve rotatable on said shaft, a

tens date wheel secured on said sleeve to rotate therewith, a units date wheel journaled oirsaid s-eeve to rotate thereon, an actuating member concentric with said shalt and adapted to rotate independently thereof and ot said units wheel, said actuating member having 31 teeth thereon, means for inserting coins into said housing and against said actuating member to advance such member one tooth for each coin inserted, a driving gear connected with said actuating member, a pinion secured to said units wheel, a transmission gear between said driving gear and said pinion, a second drivmg gear connected with said actuating memher, a pinion secured on said sleeve, and a transmission gear between said second driving gear and said sleeve pinion, said units wheel having ten date indications l to O thereon, said tens wheel having the indication series 1, 2, 3 and blank three times repeated, said transmission gears being proportioned to cause one step advancements of said wheels for each one tooth advancement of said actuating member.

2. In a calendar or the class described, the combination of a housing, a shai t secured in said housing, a sleeve journaled thereon, a tens date wheel secured on said sleeve to rotate therewith, a units date wheel journaled on said sleeve to rotate-thereon, an actuating member concentric with said shatt and rotatable relative thereto and to said wheels, said actuating member having 31 teeth, a coin slot, means controlled by the insertion of a coin for advancing said actuating member the distance of one tooth, an annular gear secured to said actuating member, a pinion connected with said units wheel, a transmission gear between said annular gear and said pinion, a second annular gear carried by said actuating member,

a pinionon said sleeve, and a transmission gear between said second annular gear and said sleeve pinion, said annular gears, pinions and transmission gears being proportioned to cause rotation of the date wheels to indicate successive dates when said actuating member is progressively advanced,

3. In a calendar device of the class described, the combination of a housing, a shaft supported in said housing, a sleeve journaled on said shaft, a units wheel journaled on said sleeve to rotate thereon, a tens date wheel secured on said sleeve to rotate therewith, a month Wheel journaled on said sleeve to rotate thereon, an actuating member concentric with said shaft and rotatable relative to said Wheels, coin inserting mechanism for said housing, means for causing an inserted coin to effect a 1/31 part of a complete revolution of said actuating member, and a transmission train between said actuating member and each of said Wheels, said trains being proportioned to cause said wheels to be set up to indicate the date as said actuating member is progressively advanced by the insertion of coins.

In witness whereof, I hereunto subscribe my name this 22nd day of October A. D., 1924;.

GEORGE W'. ESAU.

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