US1567985A - Calculating machine - Google Patents

Description

Dec. '29, 1925 Y A. RElssER CALCULATING MACHINE File Jun@ 29, 192of s sheets-sheet 1 GALCULATING MACHINE Filed June Sheeis-Sheet 2 Patented Dec. 29, 1925.

UNllTEl) STATES 'PATENT orties.

ALEXANDER REISSER, 0F MQDLING, AUSTRIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO AKTEBOLAG-ET CALCULUS, 0F STOCKHOLM, SWEDEN.

CALCULATING MACHINE.

Application led. June `29, 1920. Serai No. 392,887.

To all whom t may concern.'

Be it known that I, ALEXANDER Rnrssnn, engineer, subject of Austria, residing at Modling, Wienerstrasse 57, Austria, have invented certain new and useful Improvements in Calculating Machines (for which l have filed applications in Austria, August 21,-

1913; Denmark, January 26, 1920; Norway, December 30th, 1919; Sweden, Becember 31, 1919; Italy, August 20, 1914:; Hunger August 8, 1914, and Spain, March 11, 1920 of which the following is aspeciflcation.

This invention relates to transfer mechanisms for calculating machines of the Odhner type in which all the numeral wheels are arranged side by side on a common shaft. In known machines of this type the movement for transferring the tens from each numeral lwheel to the wheel of the next order is generally effected by means of levers or the like pivotally mounted on a rotating shaft or drum so as to be swung laterally into engagement with the numeral wheels. According tothe present invention the afores id levers or the like are superseded by discs having teeth adaptedto en ge between the teeth of wheels secure to the numeral wheels of the totalizing counter for transferring the tens of each numeral wheel to the wheel of the next order, said discs beinglslidablyarranged on a shaft mounted parallel with the' shaft of the numeral wheels and continuously rotated from the driving mechanism of the machine and each of said discs being adapted to be operated by the corresponding numeral wheel so as to be brought into operative position upon the numeral wheel passing its zero-position.

The arrangement overcomes the diculty of providing a reliable transfer mechanism in the small space available between the numeral wheels of a machine of this type and gives a compact construction in which the total number of parts are considerably reduced.

In order that the invention may he clearly understood it will now be more fully described with reference to the annexed drawings which show a calculating machine provided with transfer mechanism according to this invention.

i Fig. 1 is a sectional ,i elevation of the machine adjusted for similar calculating op'- erations 'in both totaiizing counters and in a lwithi a numeral lwheel.

position where the number value set is being transferred to the totalizing counters Fig. 2 is a sectional elevation of the machine showing the mechanism in the normal position in which the `transfer Ytakes place, both totalizin counters then operat- Ving independently o each other.

Fig. 5 is a plan view of the machine partly I in section and with the cover of the casing removed and -parts omitted for the sake of clearness.

Fig. 6 is a side view of the machine with the left side wall removed, and showing the quotient mechanism of the carriage.

Fig. 7 illustrates schematically the gear mechanism for transmitting the movement from the setting mechanism to the mechanism of the carriage.

Fig. 8 is an elevational detail of the transfer disc, and

Fig. 9-is a fragmentary side elevational detail of the transfer disc and the parts for controlling the movement thereof.

By turning the cranlr 1 (Fig. 5) of the machine in a clockwise direction the setting mechanism, comprising the pin-wheel memhers 4.-, is rotated in a counter clockwise direction as seen in Fig. 1 by `Ymeans of spur wheels 2 and. 3. The number value set in the setting mechanism is then transferred to the numeral wheels 24 of the first totalizing counterzin the usual way through intermediate gears 28 and toothed wheels 25 each rigid From said toothed wheels 25v a movement is further transmitted to the numeral wheels 24J of the second totalizingcounter either .through a single group of intermediate gear wheels ,4.6, as shown in Fig. i or through two groups of gear wheels 45, 46, as shown in Fig. 3, said gear wheels being normally out of operatlon and in the positions shown in Figs. 2 and 4. @n rotating the setting mechanism, however, said gear wheels are temporarily thrown into engagement with the toothed wheels 25 and 25P as hereinafter described. For this purpose the gear wheels e5, es, which are YIS lil@

. carriage 7. By adjusting the frame 40 the second totalizing counter may therefore be brought into two different positions relatively to thefirst totalizing counter, as shown in Figs. 1 and 3, whereby in one case only the group of gear wheels 46 and in the other case both groups of gear wheels 45, 46, are interconnected between the two totalizing counters. In the first instance the numeral wheels 24 of the second totalizing counter will rotate in the same direction, and

`in the second instance in an opposite direction, relativel to the numeral wheels 24 of the firstl tota izing counter. It is thereby possible to carry out simultaneously similar or different calculating operations with the two totalizing counters.

' On rotating, the setting mechanism .movement is also transmitted to the transfer shaft 16 of the quotient mechanism and to the transfer shaft 41 of the second totalizing counter 24 through gear wheels 5 and 6 (Fig. 6) and intermediate gearing hereinafter described. In the pushed in position of the carriage 7 the gear wheel 6 meshes with some one of anumber of intermediate wheels 8 fixed on a shaft 9, and connection is thus maintained between. the driving mechanism and the mechanism `of the carriage.

A spur wheel 11 rigid with the shaft 9 meshes with a spur wheel 12 (Figs. 5 and 7) loosely mounted on an intermediate shaft 27. The wheel 12 engages the wheel 13 of a pair of rigidly connected wheels 13 and 31 mounted for rotation on the adjacent ends of aligned shafts 14, 15. The wheel 13 meshes 'with a spur wheel 17 rigidly secured to the transfer shaft 16 of the quotient mechanism while movement is transmitted from the` ready described, so as to be rotated with the same angular velocity, and when the direcwheel 31 to the transfer shaft 41 of the second totalizing counter through the medium of gearing compris'img two spur wheels which as to their arrangement and operation correspond to the gear wheels 45 and 46 (Fig. 1) with the exception that they are mounted directly in the left cheek of the rocking frame 40, as will be apparent from Fig. 5 where, however, only one of said wheels designated 46', is to be seen. The spur wheel 46 meshes with a spur wheel 32 loosely mounted on a shaft 33 carrying the numeral wheels 24 and toothed wheels 25 -of the second totalizing counter, and the spur izing counter, it is apparent from Figs. 1 and 3 that the direction of movement of the'v transfer shaft 41 of the second totalizing counter is automatically reversed by altering the position of the frame 40, which naturally is necessary in order that the transfer shaft 41 shall always rotate in an opposite direction relatively to the numeral wheels 24. The transfer mechanisms of the quotient calculating mechanism andA of the second totalizing counter are similar and operate in the same manner. Consequently. only thc operation of the transfer mechanism of the quotient willl be described.

Axially movable on the squarel shaft 16 (Figs. 5 and 6) of the transfer mechanism are discs 18, whose hubs 19 are each provided with an eccentric groove 20 terminating in the periphery of the hub. In the normal position of each disc the end of its groove 2O is located in a vertical plane passing through the axis of the shaft-16. Rotatably mounted between each disc 18 and its groove 20 is a spring actuated awl 22. Each disc 18 is normally retaine against axial movement by means of a blade spring 23. As will be seen from Fig. 1 the adjustable pins or teeth of each Wheel 4 of the settingmechanism extend round about one third of the periphery thereof and. consequently, the transfer .of the number value set takes place during one third of. a revolution of the setting mechanism. The remaining two thirds of the revolution are reserved for the transfer operation which must not take place until after the number value has been transferred to the totalizing counters, and, as the setting mechanism can be rotated in both directions, one third of the revolution is reserved for the transfer operation when the setting mechanism is rotated in one direction and the remaining third of the .revolution is reserved for the transfer operation when the setting mechanism is rotated in the opposite tion of movement of the setting mechanism is4 reversed, the movement of the transfer mechanism is also reversed, whereby thc discs 18 will always operate the numeral wheels in the `same Vdirection as said wheels are rotated from the setting mechanism. The arrangement of the teeth on the disc 18 must be such that the numeral wheels are! not operated` from the transfer mechanism during the transmission of the number value from the setting mechanism to the totalizing counters; that is to say, there must be no teeth on that part of the periphery of each disc 18 which corresponds to the part of the wheel 4 occupied by the adjustable pins or teeth. Each disc 18 (Fig. 5) has two teeth,

those on the first disc (that of the lowest denomination) being arranged in this case at an angle of 180o and those on the other discs being arranged at angles which decrease 18D successively or in such manner that the transferl of a higher order will not take place until the transfer of the next lower order has been performed as will be hereinafter apparent. Thus, the teeth of the discs 18 will be arranged along two helical lines, which in the normal position of the mechanism are symmetrical to a vertical plane passing through the axis of the shaft 41 in Fig. 1. starting close to each other at the disc of the highest denomination and diverging towards the disc of the lowest denomination. This arrangement corresponds exactly with the known arrangement of the adiustable transfer elements on the setting disc 4 operating the first totalizing counter. All teethl along the helical line located to the left of said plane will, therefore, be operative for the transfer of the tens when the transfer mechanism is rotated in one direction while the teeth located in the other helical line to the right of said plane will be operative when the mechanism is rotated in the opposite direction.

During the iii-st third of a revolution of the transfer mechanism say in a clock-wise direction Fig. 6) the correspondinl movement of t e shaft 16 will cause all vteeth on the discs 18 to the left of the aforesaid plane to be moved angularly past the teeth of the wheels 25 without engaging them owing to the fact that the numeral wheels 24 will not then have been set and, consequently, the discs 18 areinoperative. During the intermediate third of the revolution, when the transfer mechanism is still inoperative, a tooth 26 engages the intermediate Wheel 28 loosely mounted on the Y intermediate shaft 27, thus turning a wheel the l longing to the numeral wheel of the next 25 and therefore the corresponding numeral wheel 24 through a tenth of a revolution. Supposing the zero-position to be the starting position then, according to the direction of rotation, the numeral wheel 24 provided with numerals from 0 to 9, has now turned either'from 0 to l or from 0 to 9. A stud 29, at the numeral 6, on the left side of each wheel 25, is adapted to actuate the adjacent axially movable disc 18' durin the rotation of said wheel. The outer en of the stud 29 has a hooked portion for engagement with the groove so as to cause the disc 18 to move laterally when said portion comes into o erative engagement with the edge of t e disk 18. When'thisoccurs the disc is brought into ath of movement of the wheel behigher order. During the axial movement of the disc 18 the spring actuated pawl22' "engages the groove 2O in its hub 19 thus retaining the disc in the advanced position and preparin the transfer operation. The latter takes p ace during the last part of the revolution of the crank in the following manner -As already mentioned, the

tooth 26 provided in the setting mechanism has turned the wheel 25 of the quotient row, for instance durin a substraetion, in an opposite direction, t e numeral 9 then appearing in the peep hole 80. As the numeral wheel rotates, the stud 29 thereon moves the disc 18 into the range of the toothed wheel 25 of 'the next higher order. The pawl 22 engages the annular grooves 20 and retains the disc in this position until the transfer of the next higher order has been performed. This transfer is effected by the second tooth of the disc 18, which advances the correspondin numeral wheel from 0 to 9. During t is movement the stud 29 of this numeral wheel actuates the next adjacent disc, and the same operation is repeated as was performed in the preceding order. When the whole transfer operation up to the highest order 4has been performed the pawls 22 engaging the annular grooves 20 reach through the end of the grooves 19 to the periphery of the hub and owing to the springs 23, the discs 18 thus released are returned to the startin position, which takes place at the end of t e revolution of the crank. Y

The pair of wheels 13, 81, loosely mounted, by means of a bushing, on the shaft 14 of the quotient mechanism and on the shaft 15 of the first totalizing counter, eii'ect simultaneously the rotation of the transfer shaft of the second totalizing counter in the manner described.

As will appear from Figs. 1 and 5, the carriage comprising the frame 34 has three side walls or cheeks 36, 35, 37, carrying the various shafts for the quotient and first totalizing counter. The intermediate shaft 27 and the shafts 14, 15, for these are journalled in said walls of which 86, and 35 also forni bearings for the intermediate shaft 9 of the quotient counter mechanism, for the transfer shaft 16 and for the awl shaft 21. The shaft 38 of the first tota izing counter is jour'nalled in the cheeks 35 and 37 between'which, as previously` stated the frame 40 of the second totalizingcounterK is mounted to swing on the pins 39. f

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A calculating machine of the character described comprising in combination, main driving'mechanism, a totalizing counter including a shaft and numeral Wheels on the shaft and a transfer mechanism comprisin toothed wheels secured to the numera wheels, another shaft parallel with the shaft iso l i of said discs bein of the numeral wheels and continuously operzlited` from the driving mechanism, a plura it on t e lastmentioned shaft and adapted to engage the toothed wheels for transferring the tens of each wheel of the totalizing counter to the wheel of the next order, and each adapted to be operated by the correspon lng numeral wheel-'so as to be moved to the operative position upon the numeral Wheel passing to zero position, each of said toothed discs being provided in its hub with 4a groove and a locking device being provided for each' toothed disc consistin of a sprin awl adapted to engagedn t e groove o t e disc upon the'latof toothed discs slidably arranged eral displacement of the latter in -such a manner asto hold the disc in the corresponding position .until the tens-transfer operation is completed, whenv it is released and returnedllaterally to normal position by the action of the spring, substantially as described.

2. In a calculatin machine, a transfer mechanism as claime in claim 1 wherein the groove is so shaped as to bring the pawl out of engagement with the groove when the toothed disc is completing its revolution.

In testimony whereof I ax my signature.

ALEXANDER RE'ISSER.

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