US1797487A - Assighob - Google Patents

Description

March 24, 1931.'. E. J. VON PEIN CASH REGISTER 3 Sheets-sheet 1 Filed Nov. 16, 1923 fzlllllflzlllllll n l wuQ/wtm Edward J. Von Pein Y END M March 24, 1931. E. .1. voN PEIN 1,797,437

CASH REGISTER Filed Nov. 16, 1923 s sheets-sheet 2 wuc/wtoz Edward J. Von Pein March 24, 1931. E. J. voN PElN CASH REGISTER Filed Nov. 16,'1923 5 Sheets-Sheet 3 3mm/tofs new@ .vw Pein B M f Patented Mar. 24, 1931 EDWARD VON PEEN, OF DAYTON, OHO, ASSTGNOR, BYltESNE ASSGrNI/IENTS, TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO,' A CORPORATION OF MARYLAND v CASH REGISTER Application filed November 16, V1923. SerialiNo. 675,158.

This invention relates to cash registers and risshown carried out in connection with a machine of the type shown in Letters Patent of the United States to Thomas Carney, No.

497,860, granted May 23, 1893, and to Edward J. Von Pein, No. 1,664,955, granted April 3, 1928.

Y The present application discloses an im proved method of operating a plurality of printer impression hammers which structure is not claimed herein, but formsy the basis of a division application, SerialV No. 115,903, filed J une 14, 1925. y

To insure the proper operation of the machine an interlocking mechanism cooperates with the item keys and theprinter operating mechanism. This interlocking mechanism is not claimed inthe present application.

An object of the invention is to 'provide auxiliary mechanism for operating the key coupler.

Another object of the invention is to provide an auxiliary means to lrestore the key coupler, in combination with meansto assist in operating the auxiliary means to relieve the drive shaft of a part of itsoperating load.

With these and incidental objects inv view, the invention consists of certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims anda preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form part of this speciication.

Of said drawings: v l

Fig. 1 is a transverse section of the machine taken to the left of the totalizer.V

Fig. 2 is a detail view of the driving connection between the key `coupler and the cam shaft. n

Fig 8 is a sectional view taken between the right side frame and the printer frame. Fig. 4 is a detail view of a part of the Areceipt feeding mechanism.

Fig. 5 is a detail view of part of the key coupler auxiliary operating device. Y

Fig. 6 is a side elevation of the printer' mechanism together with a part of the driving mechanism. v. The machine disclosed, is in general substantially the same asA that shown in the Carney and Von Pein patents referred to. Only so much of the old mechanism is disclosed as is necessary to give an understand* ing of these improvements, and the same will be described only in so far as is necessary to understand the specific invention here involved.` f f `The machine includes a plurality of groups of amount or item keys, atotalizer, item entering, item printing and item indicating mechanism, and adriving means. The keyhoard includes a plurality of groups of item or amount'keys 20 pivoted on a transverse rodv 21 mounted in the side frames of the machine.

The rear ends of the keys engage akey coupler 22 which swings on trunnions 23journaled in the side frames of the machine. Actuator controllers 24, connected to the rear ends of the keys, engage-rods 25 carried by rocker frames supporting totalizer actuators The totalizer actuators are normally inA mesh with gears 27 connected with the item printing wheels 28 (Fig. G) Vby a tube line to set up the amounts represented by ythe keys depressed. The key coupler 22 carries a roller 29y mounted on its righthand side (Fig. 2) which cooperates with a slot in a driving double rack 30. The driving rack rotates a shaft 31 in the usual manner, asis well known in the art.

rllhe amounts representedl by the keys depressed are also entered Y in a totalizer 87 mounted in a frame88 (Fig. 1) pivotally supported on trunnions 39 supported in a frame tie bar'of the machine. f The totalizer is of a well known form for this type of machine and is provided with totalizer elements having pinions 40 adapted to engage the actuators 26 at the proper time to enter the items registered by the keys.

Resting on the rear ends of the keys 2O are the usual tablet indicators 4l elevated to av display position when the keys are operated.

`Keg] coupler device engages an upwardly extending arm 45 of a latch 46 and rocks this latch on its pivot 47 Hin a cleckwise direction and releases a springtensioned lever 48 (Figs-3 and 5) at the time the key coupler reaches the end of its upward movement. 7 hen the lever 48 is released, a

projecting arm 49 is in contact with the pin 43V and assists the key coupler inreturing to its normal position.

The spring-tensioned lever 48 is freely mounted on a stud 50 supported in the side fra-me of the machine and is rigidly connected to an arm 5l by a hub 52. This arm has a slot 53 into which is fitted anfadjustable connection 36 for one end of a spring 54. The other end of the spring is connected to an arm 55 pivoted on ai pin 56 supported in the side frame of the machine. This arm' 55carries aroller 57 normally engaging a depression TQ ina cam 58 pinned to a shaft 59 and which acts as an equalizing means in the rotation of this shaft. It will be hereinafter described.

`The cam 58 also has a cam groove 60 into which a roller 6l carried by a pitman 62 projects. The forward end of this pitman has an elongated opening engaging a pin 63 projecting laterally from the arm 5l. `When the latch 46 is tripped, permitting the arm 51 to move counter-clockwise, the pin 63 will move to the right hand end of the slot in the pitman 62. During the operation of the driving shaft 59the pitman moves the arm 5l clockwise to its normal position, whereupon the latch 46, under the tension of a spring 64, will engage a rlip 65 formed on the lower end of the lever 48 to retain this lever until a following operation of the machine.

The spring 54 (Fig. 3) in addition to being a means for assisting the key coupler in its operation is also a means for equalizing the load on the driving shaft 59, the cam 58 being so formed that the tension on Athis spring Vvaries during the rotation of the driving sha-ft 5 9. The depression 7 O formed in the cam 58,

:isf vfor `the purpose of assisting the driving Interlocking mechanism As the item keys and the driving-means are operated independently of each other, an interlock is provided between these two operating means. j Secured to the right hand ytrunnion of the key coupler, outside the printer frame-75, isan arm 8O (Fig. 6) carrying a pin 8l which connects with an arm 82 freelvmounted upon the trunnion 23,.V

The lower end of the arm 82 carries a-roller 83 engaging the upper edge k84 ofa lever 85 fulcrumed on la pin 86 projecting from the printer .frame 75.

As the army 82 is rocked counter-clockwise by the key coupler, the lever is moved counter-clockwise on its pivot and causes the rearwardly extending arm 88 of the lever 85 to move out of the'path of a lug 89 secured to the gear 71.

As the forward end 90 of the lever 85 moves downwardly it will pass a pin 91 carried by an arm 92 always under spring tension to move in a counter-clockwise direction.

rlhereforeVas the end-90 of the lever 85V 93 of the lug'89 engages the lower arm 94 of n the lever 85 and forces this lever to return to its normal position, in which position the driving means is disabled by the lug 89 again being in contact with the arm 88.

vAnother interlocking feature is'provided, which allows but oney operation of the item keys to each operation of the drivingv means. A spring-actuated Varm 9'5, freely'mounted upon Vthe pin 86, has a laterally projecting pin 96 engaging a shoulder formed on the lever 85. As the lever 85' is moved counterclockwise to release the cam shaft 59, as previously described, the arm contacts the pin 8l andrests upon this pin during the counterrlio clockwise movement of the arm 82. During 4 the return or clockwise movement of the arm l82, the arm 95 will continue its counterclockwise movement until the Apin' 96 again i engages the shoulder on the lever 85, in which position an end 97 of the arm 95 will be in the path of the, pin 81 to prevent a second movement of the arm 82 by the operation of an item key. AVThe return of the lever 85 to its normal position will return the arm 95 to the position shown in Fig. 6.

Printing mechanism Only so much of the printing mechanism is disclosed in Fig. 6 as enters into the invention here involved, the printer being fully described and illustrated in the Von Pein patent previously referred to. `The type wheels 28, previously described, print the items as they are entered, both upon a record strip 103 retained within the machine Vand an issuing strip 104.

The record strip 103 is fed from a supply roll 105 around guide rollers 106 and onto a receiving roll 107 in the usual manner. The issuing strip 104 is fed from a supply roll (not shown) around a guide roller 108 and between a feeding roller 109 and a tension roller 110. The tension roller 110 is carried on a pivoted arm 111 and held in contact with the feeding roller 109 by a spring 112.

The feeding rollerl 109 moves counterclockwise at each operation of the machine and retrograde motion of this roller is prevented by a spring-actuated pawl 113 which engages a ratchet wheel 114 secured to the feeding roller 109. This feeding roller is secured to a shaft 115 journaled in the printer frame 75. The(y feeding roller is operated by a spring-tensioned pawl 116 (Fig. 4) cooperating with a ratchet wheel 102 pinned to the shaft 115. The pawl is pivoted on an arm 117 freely mounted upon the shaft 115. Secured to this arm is a pinion 118 which is in mesh with a segment arm 119 pivoted on a stud 120 supported by the frame work of the machine. This arm is oscilla-ted at each operation of the machine by two cams 121 and 122 engaging rollers 123 and 124 respectively mounted upon studs carried by the segment arm 119.

The records are made upon the record strip 103 and the issuing strip 104 by the aid of an inking ribbon 125 which passes partly around a feeding roller 126, over guide rollers supported in the printer frame and under a tension roller 131 carried by an arm 132 pivoted at a point 133. p

The impressions upon the record strip and the issuing strip are made simultaneously by spring-actuated impression hammers 134 and 135. The impression hammer 134, which causes the impression to be made upon the record strip 103, is pivoted upon a stud 136 mounted in the printer frame and has a formed ear 137 engaging a spring plunger 138 supported in a bracket 139 secured to the printer frame. A downwardly extending arm 140 of the impression hammer 134 con- .sio-n hammer 135 in its normal vtacts a pin 141 (Figs. 3 and 6) to return and retainthe impression hammer 134 inl its normal position after an operatic-n.

` The impression hammer 135, which causes the impression tc be madev upon the issuing strip 104, is pivoted upon a stud 146 supported by the printer frame and has a rearwardly extending arm with a formed ear 147 engaging a springsactuated. plunger 148 supported by a bracket 149 secured to the printer frame. An upwardly. extending arm 150 of the impression hammer 135v contacts a pin 151which returns and maintains the impresposition after an operation of the machine. f

The pins 141 and 151 are carried bya lever 152fulcrumed on a stud 153 supported by the frame of the machine. This lever 152 has a 4fiat sided pin 154 (Fig. 3) which engages a spring-pulled latch 155 pivoted on a stud 156. This latch retains'the lever 152 in its normal position, as shown in Fig. 3, and the impression hammers 134 and 135 under spring tension, as shown in Fig. 6. As the shaft 31 (Fig. 3) rotates counter-clockwise during the operation of any item key 20 (Fig. 1), a pin 158y carried by a disk 157 secured to the shaft engages an arm 159 extending downwardly from the latch 155, and rocks the latch 155 clockwise on its pivot to disengage it from the flat sided pin 154. At this time a nger 160 on the lever 152 engages a cam 161 and retains the impression hammers until the nger 160 drops ofi at the shoulder 162 of the cam, when the spring plungers 138 and 148 (Fig. ,6) operate the impression hammers 134 and.135 to print upon the record strip 103 and the issuing strip 104.

The finger 160 on the lever 152 drops quickly from the high part of the cam 161 to the low part, to afford a springing hammer blow Vupon the type carrier. v:During the operation of the driving mechanism the impression hammers are returned to their normal positions by an upwardly extending arm 168 of the segment arm 119 (Fig. 3). As this arm is moved counter- 4clockwise the arm 168 engages the flat sided pin ,154 and returns the lever 152 to a position toenable the latch 155 to again engage' the flat sided pin 154 and retain theimpression hammersin their normal positions until the next operation of the machine. i

Operation .'.In an operation of the machine the operthe record strip and the issuing strip, and

releases the driving mechanism which is then operated to complete the transaction by feeding the issuing strip and restoring the imunderstood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming Within the scope -of the claims Which follow.

What is claimed is l. In a machine of the class describe-d, in combination, a plurality of lever keys, a key coupler, a driving shaft, a swinging member adapted to be moved in one direction by a spring to cooperate with saidk key coupler in returning said keys to normal positions, `a separately mounted latch member normally retaining said swinging member, a member secured to said key coupler `and adapted to release said latch, and a pitman operated by said -driving shaft forreturning said swinging member to normal position.

2. In a machine of the class described, the combination of manipulative means; a rockable member operated thereby; rotatable means; a movable member normallyV under spring tension; a separately mounted latch to retain said member in normal position; means, rigid with the rockable member, and having a projection to operate the latch to release the movable member; and a device `operated by said rotatable means to return member; means on the rockable member adapted to trip the latch; means to restore the normally restrained member to its normal position; and means operated by the drive sha-ft to operate the restoring means, to increase the tension of the .spring at a certain time, and to release the spring, whereby the increased tension assists in operating the re# storing means, thus relieving the drive shaft of a part of the operating load.

4. In a machine of the class described, the combination of manipulative means; a rockable member operated thereby; rotatable means; a movable member normally under spring tension; a separately mounted latch to retain said member in normal position; a

bell crank rigid with the rockable member;

manipulative means, to release the movable member; another projection on the bell crank 'extending into the plane of the movable EDWARD J. voN PEIN.

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