Patent GB-311855-A (GB)
Title: Improvements in or relating to autographic registers
IPC: B41L5/00
Filed: 1928-03-05
Abstract: 311,855. National Cash Register Co., Ltd., (National Cash Register Co.). March 5, 1928. Autographic recorders; voucher-issuing. An autographic register adapted to issue a plurality of sales slips, receipt forms or similar vouchers, for example an original and a duplicate, and provided with means whereby the slips issued at each operation may be of different lengths, is provided with means for feeding a record strip, that is retained in the machine and has a length of feed that may differ from that of the issuing strips. In the recorder shown in Figs. 1 and 5, original duplicate and record strips 35, 53, 59 pass respectively from rolls 30, 50, 57, over guide-rollers 36, 54, 60 and a writing-plate 39. The original and duplicate strips are fed by rollers 40, 41, driven by a crank-operated shaft 81, and issue through a slot 42. The record strip is wound on a roll 62 that is mounted on pivoted arms 65 and normally raised into contact with idle rollers 86. The extent of feed of the record strip is determined by the length of curved plates 79 attached to the periphery of two rollers 70 that are driven by and mounted eccentrically of the shaft 81. The rod 66 carrying the arms 65 is rotatable by a handle 77 to allow the roll 62 to be removed, the spindle of the roll being guided by slots 76, 75. The extent of the major part of the feed of the original and duplicate strips is determined by the length of a curved plate 113 mounted on the roller 41. The two strips are given a small additional feed by pawls 119 that are moved forwardly by a cam 123 and engage through apertures firstly in the duplicate strip and secondly in the original strip, the amount by which the length of the duplicate exceeds that of the original being determined by the relative spacing of the apertures in the strips. During this operation a slackness is produced in the strips by a forward movement of a frame 125 carrying the rollers 36, 54, 60. Duplicating is effected by carbon paper disposed between and at right-angles to the strips. In the recorder shown in Fig. 7, the original, duplicate and record strips 35, 53, 59 are fed separately by pairs of rollers 140 - - 145 driven from the main shafts 81 through gearing and friction clutches. The extent of feed of each strip is determined by the spacing of slots in the strip, which slots cooperate with a spring-pressed braking-lever 156 that normally presses against the strip, but enters a slot when the desired length of strip has been fed. The resultant clockwise movement of the lever causes a detent 162 to engage a ratchet wheel 163 and thereby lock the strip roll. Pins 164 on the detents 162 normally engage abutments 165 in a sliding-plate 166 to hold the latter in its right-hand position. Upon the rotation of all the levers 156 into locking position, the plate 166 is released and slides to the left under the action of a spring 169 whereby a latch 170 on the plate 166 is caused to engage a stop 173 on a second sliding-plate 174. During the rotation of the main shaft 81 a cam 175 thereon rocks a bell-crank 177 connected through plate 166 and latch 170 to plate 174. The resultant right-hand movement of plate 174 causes abutments 180 thereon to engage the pins 164 and reset the braking-levers. The latch 170 is broken by the engagement of a tail 182 thereon with a fixed pin 181. In the recorder shown in Fig. 9, the original and duplicate strips 35, 53 are fed by a pair of rollers 184, 185 and issue through a slot 42 in the side of the casing, the width of the strips determining the length of the detached slips. The record strip 59 is also fed by the rollers 184, 185. The strips are aligned by pins 199 that project from a flattened part of the roller 185 and enter spaced slots in the strips. In the recorder shown in Fig. 10, the original and duplicate forms are printed on a single strip 35, are separated by a line of perforations and are automatically severed during the operation of the machine. The strip passes from a roll 30, over a roller 36, across a writing-table 39 and around a roller 200, returns across the writing-table, passes between feed rollers 201, 202, through a fixed knife-member 204 and issues through a slot 42. The feed-roller 202 is driven from the main shaft 81 through gearing and a friction clutch, and is controlled by a spring-pressed lever 205 that normally presses against the surface of the strip, but enters a slot in the strip when the desired length of strip has been fed. The resultant rotation of the lever is transmitted to an arm 207 that is moved into engagement with a ratchet wheel 208 to stop the feed of the strip. At the end of a rotation of the shaft 81, a cam-member 214 mounted thereon, operates a lever 220 and link 219 to cause a knife 218 to sever the strip. At the beginning of a rotation the lever 205 is reset by the cam-member acting through an arm 216 connected to the lever. The record strip 59 is fed on to a roller 62 that is driven from the main shaft 81, the feed being controlled by a spring-pressed arm 227 acting in a manner similar to that described with reference to lever 205. In the recorder shown in Figs. 12 and 14. the original and duplicate strips 35, 53 are fed respectively by rollers 234, 242 that are geared together and are driven from the main shaft 81. The rollers 242 are mounted on a rod 243 carried by arms 244 projecting from a spindle 246. Each roller 234, 242 is normally pressed into engagement with one of a number of smaller rollers loosely mounted on a rod supported by arms pivoted at 257. The rollers are held in contact during feed by an arm 253, Fig. 14, that bears on the periphery of a cam formed of two sectors 248, 249 mounted on the shaft 81. The extent of feed may be varied by adjusting the sectors. The diameter of the rollers 242 is made greater than that of the rollers 234 in order that the length of the duplicate slips may exceed that of the original slips. The issuing strips are braked at the time they are severed by means of a brake bar 258 that is pivoted to the lever 253 and is accessible from without the casing. The record strip 59 is fed from roll 57 on to roll 62 by means of feed rollers 273, 274 with which the rolls are held in contact by a spring 272 connecting the pivoted supporting arms 267, 270. The feed of the record strip is controlled by a cam 283 acting through lever 285 and detent 280 upon a ratchet wheel 282 connected to feed-roller 274. Previous entries on the record strip may be viewed through a window 279 when the strip has been wound back upon roll 57 by manual rotation of a wheel 278 connecting the feed rollers 273, 274.