Patent GB-190411749-A (GB)
Title: Improvements in and relating to Cash Registers.
Filed: 1904-05-21
Granted: 1904-09-22
Abstract: 11,749. National Cash Register Co., [National Cash Register Co.]. May 21. Receipts, checking a n d recording.- Modifications are described in cash registers of the type set forth in Specification No. 2943, A.D. 1901, in which, on the movement of the driving-handle, the operating-segments are returned to zero and then moved to the positions determined by the corresponding keys, at which points the segments are unlatched from the operating- plates and come to rest, such modifications consisting in the provision of nine special counters for registering sales made by six clerks, and three special transactions, the proper counter being selected by a setting-lever adjacent to the clerks' keys, and the mechanism interlocking these keys and the main and setting levers to prevent improper use of the machine, and also operating the special indicator and issuing checks for the special transactions in all cases. The nine special counters 40, Fig.1,are mounted in a rotary drum 41 on the shaft 42, and are set by the lever on the shaft 44, segments 45, 46, and a second segment 48 on the shaft 47. The segment 48 gears with a pinion, and the main lever moves the drum and its carriage 52 so as to bring the selected counter into gear with operating-segments on the shaft 50 and nested sleeves 51, all deriving motion from the gear-wheels 33, Fig. 4. The latch 55, pivoted at 54 to the setting-lever, has a nose which can take into one of the notches 57, and must be lifted by its arm 59 when the lever is moved, the three lowest positions corresponding to the special transactions " received - on - account," " charge," and "paid-out." Unless this lever has been properly set, the depression of the corresponding key 60, Fig. 3, will be prevented by the pin 67 thereon engaging with the dog 65 pivoted to the frame 61, but, as the lever is moved, the arm 55<a> of the latch depresses the arm 70 and with it the curved lever 73, both keyed to the shaft 71, whereby the segments 77, 75 and arm 76 carry the unlocking-dog 79 along clear of the tails of the locking-dogs, until the latch takes into the required notch, when the spring 80 and arm 81 rock the shaft 71 and press the lever 73 with the unlocking-dog upwards, displacing the dog corresponding to the particular notch. When, however, the lever is brought to one of the three lowest notches, the arm 82 forces the frame 61 to slide upwards, thus displacing the dogs and leaving the clerks' keys free. To lock the clerks' keys during motion of the lever, and the lever after depression of a key, the detentplate 87 of this bank of keys and the curved arm 70 are interlocked by means of a pin 86 on the detent-plate, a slot 85 on the shaft 83, and short arms on this shaft and the shaft 71 adapted to lock with one another ; the position of the shaft 83 thus determined may be utilized to lock the main shaft of the machine 28 until setting is completed. A nose 89 on the arm 81 and a locking- cam 91 lock the machine while the latch nn the setting-lever is released, general locking being, however, effected by the retaining-bar 92, Fig. 4, a pin 97 on which prevents motion of a pin 98 on the operating-plate 32 unless the detent-plate 87 has been raised, by depression of a key, out of engagement with the shoulder 96 on the bar, which is then moved by the spring 95, thereby releasing the operating-plate and locking the detent-plate. Manipulation of the machine by slightly depressing one of the "amount" keys and operating the driving-handle before completing the depression, is prevented by a bell-crank lever on the shaft 47, one arm of which has slots in which pins on the detent-plate for the bank of "amount" keys and on the retaining-bar respectively engage and are so placed that the initial depression of a key carries a lug on the other arm of the lever into the path of a lug on the operating-plate, the final motion of the retaining-bar effecting a further movement of the lever which disengages the lugs. A special indicator 110 for the clerks' keys is mounted on the shaft 35 and operated by a pinion 111 and rack 112 pivoted to the setting-lever, provided with mechanism for latching the special indicatorscreen-plate 115 to the main screen-plate until released by the rocking of the lever 121 by the arm 81. This arm moves the latch-pawl from engagement with the main plate upon a new setting of the special lever, thus allowing the special plate to fall and conceal the previous indication. The operating-segment 30 rotates the shaft 134 by gearing 130, 132, 133 so as to bring the finger 135 under the releasing-arm 136 of the proper drawerlatch 137, and the cam 142 on the main shaft then co-operates with the pin 143 and bent arm 141 to move the transverse arm 139, lift the fingershaft 134, and release the drawer, which is opened by a spring. The number of operations is recorded on special counters 150, Fig. 15, and a general customers' counter 150<a>, operated by pawls on the ends of levers 154, 154<a> which are' depressed by the linkwork shown, deriving motion from the rock-shaft 74, the particular special counter to be actuated being selected by the bevel-wheel and rack mechanism driven by the shaft 47, whereby longitudinal motion of the finger-carrying shaft 156 is produced, and only one finger 155, 155<a> is in position to engage for each position of the setting-lever, the collar 157 of the customer's counter being feathered on the shaft for this purpose. When the setting-lever is in either of the three lowest positions, the pin 183 on the arm 182 engages with a slot in the arm 180, whereby the collar 171, loose on the shaft 47, is rocked and carries an upward arm 170 thereon against a bar. A pinion on the bar, and forming part of the train driving the total registering-wheels, is thereby thrown out of gear, and the registration of the item upon the wheels prevented. Rollers 200 upon the operating-segments engage slots 201 in curved arms 202 to set segments 205, Fig. 7, carried by nested sleeves on the shaft 203, and to operate pinions 206 upon similar sleeves on the shaft 208, which carries the printing-wheels 209 ; a segment 210 on the rock-shaft 47 operates a printing-wheel assigned to the setting-lever. The platen lever 218, Fig. 6, is pivoted to the frame and makes two strokes for each operation of the machine, motion being derived from the main shaft 28 by gearing 231, 232 and a cam-groove on the disc 229 in which a pin 227 on the upward arm 226 of the lever engages. As it moves, the linkwork 223, 222 and pawl 221 feed the ratchet-wheel 220 to wind the detail-strip from the roll 216 on to the drum 219. Aligning-pawls 239 engage with the teeth of plates 240 as the levers 238 are moved by a camgroove and pin 236, and the gear-wheels 24, 25, arms 245, and racks 244 co-operate to rotate pinions on the shaft 208 to which the arms 241, 242 carrying the ink-pads 243 are attached. The roller 217, on its first down-stroke, presses the pad against the type at the printing-point. The check-strip passes from the shoot 258 between the wheel 251, bearing numbering, dating, and advertisementprinting devices, and the feed-roller 253, which is journalled on an eccentric portion of the shaft 255 and provided with an external spring knob held by pins in whichever of the two positions "feed" and " no-feed " it is set. The printing-wheels have duplicate types at opposite ends of diameters, the detail strip being printed above the wheel and the check below the wheel by means of a platen 279 controlled by the linkwork 270, 271, 272, Fig. 12, whereby the motion of the feed-knob operates the pin 274 in the slot 275 of the platenlever 276, a pin 280 on which engages a camgroove 281 in a disc on the shaft 255, a double stroke of the lever being given. The platen-bearing slide 278 also carries a knife 282 moving against a fixed blade 283 to sever the check-strip. Fig. 13 shows the check shoot and inking-roller284 for the printing-wheel 251 mounted upon arms 285 on the shaft 273, and means for rocking them as the shaft 255 is rotated, whereby the type is not inked when no checks are supplied. The numbering-mechanism in this printing-wheel is inoperative when a disc 294, pivoted to the main frame at 294<a>, is concentric with the spindle 296 of the wheel, and this is controlled from the spindle 255 by the linkwork 270,292 and pins 291,293. Fig. 12. The external knob is so mounted upon this spindle that, when the setting-lever is in one of the three lowest positions, checks are supplied automatically, whatever the position of the knob. For this purpose, an auxiliary spindle 303, Fig. 10, has keyed to it a collar 304 and an arm 302, of which the latter is connected by a link to an arm on the spindle 255, and the collar engages by a simple clutch with an arm 306 loose on the spindle having a double-bevelled upper end. The position of this arm is controlled by a sliding bar so operated by the shaft 47 and a cam-arm thereon that, when the setting-lever is in the lower positions, the arm 306 is thrown sufficiently backwards to permit a pin, which slides nearly vertically as the main shaft is rotated, to press downwards on the forward edge of the bevel and rock the arm still further backwards, thus bringing the spindle 255 to the 11 feed " position. Engagement can only take place with the backward edge of the bevel when the external knob is turned to "no-feed," and the lever is also set to one of the clerks' keys, in which case the motion produced in the spindle 255 does not alter the feed and allied mechanism. A small amount of lost motion in the clutch allows of a spring- return of the sliding-arm when the setting-lever is moved upwards.