US2110903A - Cash register - Google Patents

Description

bl U55 MIBFBHCB A March 15, 1938. E. BREITLING Er AL 2,110,903

CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed June 12, 1955 5 Sheets-Sheet l m C(ttorneg v! vuu llvlvl vuvv March 15, 1938. E. BREITLING ET AL 2,110,903

I CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed June 12, 1935 5 Sheets-Sheet 2 fl; (Ittorneg 235.REG13TERS. I wuss nwwmnw Hammer March 15, 1938. E. BREITLING ET AL 2,110,903

CASH REGISTER, ACCOUNTING, AND THE] LIKE MACHINE Filed June 12. 1935 5 Sheets-Sheet 3 Snventor;

LXHTHIHGT 235, Htmblmo.

March 15, 1938. E. BREITLING ET AL 2,110,903

AND THE LIKE MACHINE CASH REGISTER, ACCOUNTING,

Filed June 12, 1935 5 Sheets-Sheet 4 (lttorneg Lxummer 235. REGISTERS.

March 15, 1938. E. BREITLING ET AL CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Filed June 12, 1935 5 Sheets-5heet 5 Isnzentors M Gttorneg Patented Mar. 15, 1938 N UNITED STATES PATENT OFFICE CASH REGISTER, ACCOUNTING, AND THE LIKE MACHINE Ernst Breitling, Berlin-Tempelhof, and Julius Patzelt, Berlin, Germany, assignors to The National Cash Register Company, Dayton, Ohio, a corporation of Maryland Application June 12, 1935, Serial No. 26,114

3 Claims. (01. 101-93) The invention relates to a class of differential recesses l8 to be engaged by coupling tenons l9- devioes for cash registers, accounting and the of the crank hub 20. The gear I6 is in engagelike machines, and more particularly to such dement with a gear 22 on a shaft 23 by means of an vicesin which certain elements return to normal intermediate pinion 2|, rotatably mounted on a position during the machine operation, while stationary stud of the side wall H. The gears 5 other elements, such as those which are con- 22 and [6 are of like diameter, so that when the nected with the indicating devices, and with the crank II is r tated thr u h a full ro a ion, h type Wheels of the printer, remain in the set 110- shaft 23 is also rotated a full rota ion. sition at the end of a machine operation. The shaft 23, rotatably supported in the side The main object of the invention is to adapt Walls 44 and [5, has secured thereto a cam disk 1t)v such a differential device, for use with key banks 24 having a curved groove 25 5) engaged y for setting up data not to be added, as for ina roller 26 of an arc-shaped toothed arm 28 pivstance dates, ledger numbers and the like, for oted on a stationary stud 2! of the side wall I4. eliminating zeros and printing asterisks, letters he eeth of t e arm 23 me w a t ot ed See'- or the ,like in denominational orders preceding ment 29 fast on the hub of a carrier 30 secured to the highest digit of any number, the shaft !3. During each machine operation, Another object of the invention is to adapt the Cam disk 24 imparts t0 t m first. a the zero stop pawl for setting th ty h l rotary movement in counter-clockwise direction to asterisk printing position. and, thereafter, in clockwise direction. These Another object of the inv nti i t arrange two rocking movements are transmitted, through 20 the numerals of the indicator wheels and the the toothed Segment 29, in the reversed sense to types on the type wheels in a sequence best suited the shaft S that t latter during each m for printing asterisks or letters instead of zeros. Chine Operation, is rocked fi in Clockwise and Further objects of the invention will be pointed thereupon in Counter-Clockwise directionout in the following detailed description with refsides the m shaft l3 has s d theroerence to the annexed drawings, on an arm 3| (Fig. 2), both said arms supporting A preferred form of an embodiment of the ina Cross vention is shown in th nn d d i Further, the shaft 23 has mounted thereon a Of said drawings: gear 33 being, through two intermediate pinions 30 Fig, 1 is a top vi of a amount key board 35 and 35 rotatably mounted on stationary pins 30 and a number key board of a cash register, on Wall in engagement With a gea 33 fast to Fig. 2 is a cross section of the machine along- It tube 37 (Fig. 4) round ng the shaft l3. and side of a data key bank showing the differential rotated, during each machine Operation, in the device in a side view, direction opposite to that of the crank. Fig. 3 is a cross section of the machine along- 35 1 Ke banks 30 side of an amount key bank showing the differy ential device in a, id i Associated with each bank of keys 39 and 39' Fig. 4 is a transverse section of the machine 15 difierehtial de ce having ten positions to along line of Fig, 2 looking in the direction which the differential can be positioned, that is,

4 f th arrows, a zero position and one position for each key in Fig 5 i a id View of t machine drive, the bank. The data key banks are illustrated Fig, 6 i id View of t means f r moving herein with only nine keys, but if it is desired to the zero stop pawls into ineffective position, Set up any data req irin m re h n nin k y Fig. 7 i a t i of th zero stop pawls of the additional keyscan be provided. For exv l denominational d and ample, if it is desired to set up dates instead of 45 Fig, 8 a, sid i f th type h 1 ledger numbers, then twelve keys can be used in a bank, one for each month of the year. In this case the diiferential associated with such a bank The machine may be operated by means of a Would be constructed to have a range of movehand crank ll (Figs. 4 and 5) rotatably mounted ment upwardly three steps farther than that 50 on a shouldered end l2 of a shaft IS. The shaft shown herein. I3 is rotatably supported in the side walls H! and In each key bank. besides a detent 40 (Fig. 4) l5 of the machine frame. Further, on the shoulprovided to keep any key in depressed position, dered end 12 of the shaft I3 is rotatably mounted a second detent or a. slide 4| (Fig. 2) is mounted a gear IS, the hub I! of which is provided with which is shifted downwardly by means of a pin 55 Machine drive tive oblique edge 43.

The slide 4| has connected thereto a link 44,

the pin 98 of which contacts an oblique surface of a pawl 46 rotatably mounted on a shaft which pawl normally bears against a stationary pin 89 by the action of a torsion spring 41 coiled about the shaft 45. When the said pawl is in normal position, a bent over portion 9| thereof extends over a latch 48 pivoted on the differential device 49 holding the differential device in zero position. When, however, a key 39 has been depressed, and by means of its pin 42 the slide 4| is shifted into its lower position, the pin 90 glides on the oblique surface of the pawl 46 downwardly and comes into the path of a bail 92 extending over the pawls 46 of all the key banks. The bail 92 is rockably mounted on a shaft 93, and connected thereto at its lower end is the forward end of a pitman 94. The pitman 94 has a roller 99 (Fig. 6), guided in a cam groove of cam disk 95 fixed to the tube 31 (Figs. 4 and 6).

When, during the machine operation, the pitman 94 is forced to the right by the cam disk 95, the bail 92 is rocked in a counter-clockwise direction. During such movement the bail 92 strikes the pins 96, of those key banks in which a key 39 is depressed, and moves them against the oblique surfaces of the zero stop pawls 46 to rock the pawls 46 until the flanges 9| are out of the path of the latches 48. By this means the latches 48 and their connected differential devices 49 are enabled to be rocked upwardly and to be arrested by the foot of the depressed keys 39.

Difierentz'al device A differential device according to Fig. 3 is used in the amount bank. The amount difl'erential device has associated therewith a toothed segment 55 adapted to be engaged by a totalizer 56. The latch 48 in the amount bank is provided with a flange 48' normally held in engagement with 2. lug 55 on the segment 55, thus the actuating member 49 and the setting segment 55 are normally moved in unison. In order to obtain the right timing of engagement and disengagement of the zero stop pawls 46 and the latch 48 as well as of the flange 48' and the lug 55 in the various denominational orders, pins 91, hereinafter described are arranged on the Zero stop pawls in different planes in each order as shown in dotted lines in Fig. 3.

In order to prevent incorrect entries in the totalizers, the stop pawl 46 must remain in its effective position, when no key in its bank has been depressed, long enough to engage 48 and thus disengage 48' from 55', so that member 55, which meshes with the totalizer, will not advance to the extreme position with members 49, as it would otherwise do. In order to attain such operation, the pins 91 are set away from the flanges by such a distance that the lower order pawl will remain stationary long enough to cause 48 to release 55'. Any pawl 46 in a bank in which a key is depressed is moved directly by bail 92.

The amount differential and its special controls over the stop pawls 46 is not a part of the present invention, but is disclosed and illustrated in another application.

Each differential device for the data key bank 39' comprises a main setting member 49 (Fig. 2) rotatably supporting the latch 48, normally urged against a stop pin 88 by a spring 81, and rotatably mounted on the hub of a respective auxiliary setting member 50 (Fig. 4). Attached to a pin 5| of each of the setting members 49 is a spring 53 tending to rotate it clockwisely and, thus, to bear against the cross rod 32.

The auxiliary setting members 50 provided in each differential device, are rotatably mounted on tubes 62 mounted over the shaft |3 which tubes are interconnected with each other by tongues and grooves, and of which tubes the outermost left hand one as per Fig. 4 is connected in the same manner with the tube 31. The teeth 63 of each auxiliary setting member 59 are in mesh with a gear rotatably mounted on a shaft 64. Each gear 65 is fastened by pins 68, to a gear 66 meshing with a gear 61. The gears 61 are connected by means of nested tubes 69 to the type wheels H! of the printer.

A stud T9 of each auxiliary setting member 50 has pivoted thereon a bail formed coupling member 89. The one arm of the ball is pointed to engage the teeth 8| of the respective setting member 49. The other arm of the coupling member 80 carries a roller 82 cooperating with a cam disk 83 rotatably mounted on the shaft l3 and connected to the respective tube 62. By means of a spring 84 tensioned between the coupling member 80 and the auxiliary setting member 59, the pointed arm is normally held disengaged from the teeth 8|.

The device operates as follows:

Assuming a key 39 has been depressed. During the machine operation effected by turning the crank ll (Figs. 4 and 5), the shaft 23 is rotated clockwise by means of the gearing l6, 2| and 22. At the same time, the tube 31 is rotated counter-clockwise by shaft 23 and gearing 33, 35, 36, 38. The disk 95 is thus rotated counterclockwise with the tube 31 and urges the pitman 94 (Fig. 6) to the right at the beginning of the machine operation, in order to remove the pawl 46 out of path of the latch 48.

As before mentioned, the main shaft I3 is rocked first in clockwise direction by gears l6, 2|, and 22, cam 25, and segments 28 and 29, The cross rod 32 is moved thereby also in the same direction. The setting members 49 together with the toothed segments partake in this clockwise rocking of the cross rod 32 under the action of their springs 53, till the latch 48 strikes the foot of the depressed key 39, whereby the setting member 49 is prevented from continuing its movement. Further, during its clockwise rotation the cross rod 32 meets the auxiliary setting member 59 and restores it as well as the type wheels 10 by means of the gearing 65 to 69 to zero position. When, thereafter, the auxiliary setting members 58 have returned to their zero positions, the oblique surfaces 85 of the cam disks 83 performing a full rotation during every machine operation in counter-clockwise direction, strike the rollers 82 and force the pointed arms of the coupling members 80 to engage, against the action of their springs 84, the tooth 8| of the main setting members 49 set in accordance with the depressed keys 39. 'Ihereupon the shaft 3 starts its counter-clockwise rocking movement and the cross rod 32 restores the main setting members 49 to rest positions against the action of their springs 53. The auxiliary setting mem bers 50 coupled with the setting members 49 by the coupling member 80 actuated by the cam disk 83, are rocked out of their zero positions at the same time by a number of steps corresponding to the value of the key 39 depressed. Due thereto, also the type wheels 10 are set to the like amount.

After the setting of the type wheels 10 is completed, the high part of the cam disks 83 leaves the rollers 82, so that the coupling members 80 under the action of their springs 84 are disengaged from the teeth 8| of the main setting member 49.

The keys 39 are not interlocked during the machine operation. Thus it is possible, also during the machine operation, to release the depressed key 39 by pressing another key of the same bank. However, when the setting member 49 is set according to the key depressed, and if, now, a key of lower value is depressed in the same bank, the differential device is not controlled by the latch 48 during its return movement. During such return movement, the pawl 48, when striking the improperly depressed key, will by pass the key. This result is obtained since the pawl 48 is pivoted on the pin 86 of the setting member 49, and as pointed out before, it is normally urged against a stop pin 88 of the setting member 49 under the action of a spring 81. Thus, if the latch 48 meets the foot of a depressed key during its return movement, the said pawl is able to pass this key.

Zero printing device In order to effect zero printing in the denominational orders lower than the digit of the lowest denominational value printed, when no key is depressed in the key banks corresponding to said lower orders, each pawl 46 except that of lowest denominational value, has provided on its right hand side a pin 91 (Fig, 6) engaged by a flange 98 of the pawl 46 of the next lower denominational order. Thus, when a pawl 46 is brought out of engagement, all the other pawls of the lower denominational orders are carried along by said pawl while the position of the pawls 46 of the higher denominational orders is not altered,

If, now, in this manner, a zero stop pawl 46 in a key bank is disengaged, without a key being depressed, the appropriate setting element 49 performs its widest possible stroke until it is stopped by a stationary stop 96. Thereby, however, the setting element 49 as well as the proper type wheel 10 is displaced by ten steps. Each type wheel 10 (Fig. 8) has provided thereon two sets of types to print in two printing positions. The asterisks and the zeros are distanced. by ten steps from one another (Fig. 8). Thus, when the setting element 49 rocks up to the stationary stop 96, the zero type of the appropriate type wheel is movedinto printing position. Those differenti-al devices, however, which are held by the pawls 46 left in effective positions, move the asterisks of the respective type wheels 10 (Fig. 8) into printing position.

It is easily understood that, although only type wheel with the sequence of the numerals according to the invention is shown, also the numerals of the indicator wheels can be arranged in the same manner as well as the sequence of the numerals itself can be altered in that the zero is arranged on the lowest'position and the asterisks on the highest one, without departing from the scope of the invention,

While the form of mechanism herein shown I and described, is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the embodiments herein disclosed, for it is susceptible of embodiment in various other forms all coming within the scope of the claims which follow.

What is claimed as new is:

1. In .a machine of the class described, the combination of a differential mechanism, a stop pawl to normally arrest the differential mechanism, a plurality of keys to control the differential movement of the differential mechanism, means operable during the machine operation to withdraw the pawl from its effective position so that the difierential mechanism can be set according to the depressed key, and an element settable relatively to the means and the stop pawl upon depression of a key to render said means effective.

2. In a machine of the class described, the combination of a plurality of differential mechanisms, each adjustable to a plurality of positions including a normal and a zero position, keys to control the differential mechanisms, a pawl associated with each diiferential mechanism to normally control the differential mechanism to stop in its normal position, connections between the pawls whereby a next lower order pawl is actuated by the next higher order pawl when the latter is actuated, means operable during the machine operation, and an element movable into the path of said means and relatively to each pawl upon depression of an associated key prior to the machine operation, said means adapted to actuate the elements during the machine operation and through the elements actuate all pawls associated with the difierential mechanism of lower denomination, whereby the differentials not controlled by keys are moved to zero position.

3. In a machine of the class described, the combination of .a plurality of differentially settable devices, settable to a normal position, a zero position, and a plurality of datum setting positions between the normal position and the zero position, keys to control the setting of the devices to the datum setting positions, a pawl for each differential device normally in position to control its associated device whereby it remains in its normal position, means operable during the machine operation to move the pawls into ineffective position whereby the devices are moved out of normal position during the machine operation, an element associated with each device and operated upon depression of a key associated with the element and the associated device to render the means effective, and connections between each pawl of higher order and its adjacent lower order pawl whereby the lower order pawl is moved to release its associated device when the next higher order pawl is moved into ineffective position to release the next lower order device to move to its zero position when no key associated with the latter is depressed.

ERNST BREITLING. JULIUS PATZELT.

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