US2490425A - Frankfort - Google Patents

Description

Dec. 6, 1949 H. FRANKFORT TIME CARD CALCULATOR 2 Sheets-Sheet 1 Filed Oct. 14, 1948 flermarz INVENTOR ATTORNEYS 1949 H. FRANKFORT 2,490,425

TIME CARD CALCULATOR Filed 0st. 14, 1948 2 Sheets-Sheet 2 jleflmarz fiarzk/brt INVENTOR I 'll ATTORNEYS Patented Dec. 6, 1949 UNITED STATES PATENT OFFICE TIMEGARD CALCULATOR Herman- Frankfort, Brooklyn, N. Y.

Application October 14, 1948, Serial No. 54,520

4 Claims. 1-, This invention relates to improvements in time card calculators.

An object of. the invention is to: provide an. intproved form and construction of a. time cardv calculator which employs a fixed time indicia. bearing strip representing the hours on aclock, hereinafter termed a fixed clock strip, and a cooperating endless time calculating strip disposed upon supporting rollers for movement.

directly below said fixed clock. strip,,whereby the net elapsed payable time of a workman. may be instantly and accurately determined and indicated.

Anotherobject of: the invention is to provide an improved time card; calculator which will simultaneously compute the time that a workman puts in during any portion of a twenty four hour period, and subtract his time-out periods for lunch and rest periods, indicating the net elapsed payable time, all of which can be done by merely turning. an operating knob and without having to employ the services of a book.- keeper or accountant.

A further object of the invention is to provide an improved form of time card calculator which will be highly eflicient in operation, and relatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

In the accompanying drawings which form a part of this application:

Figure 1 is a perspective view of the improved time card calculator.

Fig. 2 is a transverse sectional view through the improved time card calculator.

Fig. 3 is a partial sectional view taken on line 33 of Fig. 2.

Fig. 4 is a side elevation, partly broken away and in section of one of the endless time calculating strip supporting rollers.

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 3. Fig. 6 is an enlarged detail view of portions of the fixed clock strip and cooperating endless time calculating strip illustrating the computation of a net payable time problem.

Like characters of reference are used throughout the following specification and the accompanying drawings to designate corresponding parts.

In carrying out the invention, there is shown and provided an improved form and construction of a time card calculator including an elongated solid supporting base I of substantially triangular shape in cross section. The bottom 2 of the base i will be the longest of its three sides, and the back 3 of the base I will extend vertically at right angles to the bottom 2 at its rear edge. The top side 4 of the base i will slope forwardly and downwardly, terminating in parallel spaced relation to theircnt edge of the. bottom 2. An upstanding bead 5 will be formed along the front edge of the bottom I,. providing a trough 6 between the same and the adjacent edge of the top side 4 for the reception of pencils (not shown).

An inverted- U-shape cover 1 will be formed with an out-turned flange 8 along the bottom front edge, while the rear lower edge of the cover i will be received in an elongated notch 9 formed along the top edge. of the back 3', and suitable screw fasteners Hiwill be passed through the flange 8 and the lower edge of the cover 1 into the base i for securing the cover firmlyin position thereon; An elongated cut-out opening U will be formed in the top of the inverted U-shape cover I. A sheet of felt 12 may be secured to the bottom 2 of the base I for cushioning the same.

A pair of elongated angle plates l3 having inwardly directed upper portions 14 will be suitably attached to the underneath surface of the top of the. inverted U-shape cover 1, preferably by means of the screw fasteners l5 which will extend through. the elongated and bowed frame It which overlies the opening H in the cover 1 and also holds the elongated arcuate magnifying glass I! in position over said opening I I.

Depending triangular shaped bearing ears I8 will be formed integrally upon each angle plate 13, and elongated longitudinally extending adjusting slots l9 will be formed in each end of the plates I3 for purposes hereinafter more fully described.

Roller assemblies 20 will be rotatably supported upon the shafts 2| in the slots l9, and will be held in the desired adjusted position by means of the nuts 22 threaded on the threaded ends 23 of the shafts 2|.

A sprocket assembly will be supported upon the actuating shaft 24 which will be mounted through suitable apertures (not shown) in the bearing ears I 8, and an operating knob 25 will be secured to the front end of said shaft 24 for manually rotating the same and the sprocket assembly. The sprocket assembly includes the sprocket 25 having teeth 21 about the peripheral edge and an integrally formed hub portion 28, through which the set screw I9 is threaded to contact the shaft 3 24 for locking the sprocket assembly upon the said shaft 24.

Reinforcing plates 30 and 3| will be attached to the opposite sides of the sprocket 26 by means of the bolts 32 and nuts 33. A cylindrical driving tube 34 which includes the section 34' will be welded at 35 to the peripheral edges of the plates 30 and 3|, and the teeth 21 of the sprocket 26 will extend between the adjacent edges of the tube 34 and section 34'.

An endless time calculating strip or band 31 is adapted to extend about the roller assemblies 20 and about the cylindrical driving tube 34, and is formed with a series of apertures 36 adjacent and parallel to one edge thereof for receiving the plates intermediate said guide rollers, and one teeth 21 of the driving sprocket 26 for moving the said strip or band 31 as the operating knob 25 is rotated. The strip or band 31 is provided with indicia 38 representing hours and indicia 39 representing each five minutes of each hour, with parallel lines 40 designating each indicia. An arrow or pointer 4| is printed or otherwise shown on'the strip or band 31 inwardly of the edge thereof upon which the indicia 38 and 39 appear, and five minute contrasting interval indicia 42 are provided over a two hour portion of said strip or band 31.

A fixed clock strip 43 is supported immediately above the strip or band 31 and contains indicia 44 showing the hours of a day and night with each hour having indicia 45 showing five minute intervals and parallel lines 46 leading thereto. In operation, the arrow 4| is set to the starting time of the workman. If the workman takes thirty-five minutes for lunch and two ten-minute rest periods, the knob 25 is turned until fiftyfive (the total lunch and rest periods) is in alignment with the starting time on the clock strip. By merely reading the clock strip 43 at the time the workman stopped Work and following down, the correct net elapsed payable time will be instantly shown.

While the preferred embodiment of the instant invention has been illustrated and described, it will be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be resorted to Without departure from the spirit of the invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the UnitedStates is:

of said indicia bearing time card calculating strips being in band form and disposed about said guide rollers and sprocket assembly.

2. The subject matter as claimed in claim 1,

-. and said time card calculating strip in band form having a series of spaced apertures formed therein engageable with and driven by the teeth on said sprocket assembly.

3. The subject matter as claimed in claim 1, said time card calculating strip in band form having a series of spaced apertures formed therein engageable with and driven by the teeth on said sprocket assembly. and means for adjusting said guide rollers to take up slack in said time card calculating band.

4. The subject matter as claimed in claim 1, said time card calculating strip in band form having a series of spaced apertures formed therein engageable with and driven by the teeth on said sprocket assembly, means for adjusting said guide rollers to take up slack in said time card calculating band, reinforcing plates secured to the opposite sides of said sprocket, and a band supporting cylinder welded to the peripheral edges of said plates.

HERMAN FRANKFURT.

REFERENCES CITED flhe following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 235,703 Richardson Dec. 21, 1880 484,538 Meyer Oct. 18, 1892 551,520 Yeamans et al. Dec. 17, 1895 925,377 Pitkin June 15, 1909 1,088,889 Flavey et a1. Mar. 3, 1914 1,118,950 Robinson Dec. 1, 1914

Images