Patent GB-190102943-A (GB)
Title: Improvements in Cash Registers
Inventor: HADDAN HERBERT JOHN
Filed: 1901-02-11
Granted: 1902-02-11
Abstract: 2943. Haddan, H. J., [National Cash Register Co.]. Feb. 11. Receipts, checking and recording.-Relates to apparatus of the type described in Specification No. 9400, A.D. 1897, which consists of indicating and adding wheels geared to driving-sectors that are turned till stopped by keys. The machine is now provided with a series of independent adding- counters and with cash drawers, the latter and the same number of counters being allotted to different clerks, the remaining counters being employed for recording special transactions. As presented here six counters are included, designated A, B, C, " Change," " Received on Account," and " Paid " out," the first three for the receipts of different clerks, and the last three for the special transactions, during the use of which the main adding- wheels are put out of action. The idle wheels of the gearing between the sectors and the counters and indicating-drums are separately connected by consecutive sleeves and a nest of yokes 9 to corresponding sectors 10, which are loose on the extended common shaft 7. The six counters 6 are disposed upon a drum 21, which is turned to bring any one of them into register with the nested sectors, and is shifted to put it into gear. To effect the angular movement, a rack 15, gearing with a pinion 22 on the drum sbaft, is movable by a bell-crank hand-lever 11 and link 14, a finger on the hand-lever pointing to readings 13 upon the casing. The translatory movement occurs because the drum shaft is mounted in a slide which is shifted by a cam on the sector shaft 7, the latter being geared to the operating crank handle (not shown). To ensure accuracy in the angular adjustment, a grooved block 31, 28, which is guided radially to the drum by a tongue 30, Fig. 5, occupying a groove in the frame, is shifted to take over a pin on the drum, there being one pin for each counter. The bell-crank lever 29, which moves the aligning-block, is operated by a cam 38 on a shaft 39, which is geared to the sectors shaft and is the shaft numbered 2 in the previous Specification. The carrying is effected as follows :- Bars 45, pierced by slots 51, 53 which take respectively over a rod 52 and the cam shaft 39, constitute slides which are normally supported in the position shown by springs 56 and by a bail 57, but are successively shifted to the left by cams 54 after the counter has been withdrawn from the sectors and after another cam 61 has depressed the bail so that the bars follow the counter owing to the form of the slots 51. Each such sliding bar bears a pawl 46 with a foot 49 to drive the counting-wheels by their ratchets 50, and a propping pawl 44, to keep the driving-pawls out of action unless an odd tooth 43 on the counting-wheel has tripped it. Obviously some of the pawls are tripped when the counter is in gear, and others as the carrying due to the pawls is proceeding. The counting-wheel driven by the extreme left-hand sector, Fig. 10, bears a pawl 132 having a lateral lug 133, by which a cam arm 134 makes it engage a star-wheel 135 on the next counting-wheel, the arm being made to follow the counter by another cam 136. The shaft 40 of each counter is formed with a longitudinal groove 61, to engage pawls 62 on the wheels for the purpose of turning them to zero, and the operation is rendered accurate by a cam 64 with a pin 65 and a reacting pivoted stop 66, Fig. 3. To ensure correct positions to the handlever 11, which selects the counter, a roller 70 on it runs over a springing wavy lever 68, and the latter disengages a pawl 73, Fig. 7, from a cam 77 on the sectors shaft, after which a spring pin 78 in the cam prevents re-engagement. The wavy lever is locked during the operation of the crank handle, because its shaft 72<a> can only rock when a notch in a disc 82 upon the cam shaft 39 is presented to an arm 80, Fig. 8. An indicator 83, to show which counter is in use, is operated by rack-andpinion gear 87, 88, but a pair of shutters 90, pulled by a spring 92, serves to conceal the indicators, because a finger 97 extending from the arm 80 on the rock-shaft of the wavy levers trips an exposing-latch upon an arm 94, from which a connecting-rod 99 extends to a cam 102 on the cam shaft 39. As the cam shaft 39 is rotated, the ordinary amount indicators are concealed and exposed by another pair of shutters, which swing with the arm bearing the latch for the first pair of shutters, and the latch again brings the latter back to the exposing position. The number of items added on each counter is recorded by six separate counters 150, which are arranged in pairs on their shaft 118 and are operated by three arms 111 on a rooking shaft 110, the arms being so spaced on the shaft that, when one of them registers with the lever 112 of one of its pairs of counters, all the others are out of register. The shaft is shifted to affect the required counter by a toothed sector 109, which is in gear with a rack at one end, and turns with the setting-handle 11. A seventh counter, alway actuated by an arm through which the shaft slides, gives the total number of transactions. A similar arrangement enables a snail on the cam shaft 39 to lift any of the bolts of the six cash drawers, which are arranged in two tiers.