Patent GB-541523-A (GB)
Abstract: 541,523. Cash registers. BURROUGHS ADDING MACHINE CO. March 26,1940, Nos. 5424 and 5425. Convention dates, March 27, 1939, and Feb. 12, 1940. [Class 106 (i)] Relates to key set and operated machines provided with a record strip and issuing a voucher, and consists in providing a plurality of sets of type carriers arranged with the printing line tangential to the path of a roller platen swung about a pivot by key-derived power to press a voucher strip against the sets of type successively. General arrangement.-The machine described d has two rows of item keys 4 arranged in three denominations journalled on a shaft 6 and urged clockwise by springs 7. The differential mechanism, key coupler and full stroke sectors are as described in Specification 445,540, and the tab indicator mechanism as described in Specification 447,263. The register pinions 37 are indexed by pawl, gear and lever mechanism as described in Specification 449,005. The printing mechanism is arranged immediately inside the right-hand frame member of the machine. Detail-record strips.-The last printed item is visible through an opening 71 and during each machine operation the strip is moved to a printing position and returned to a position where the newly printed item is visible as in U.S.A. Specification 2,249,224. The record strip P passes from the supply roll 66 under guide 66c across type wheels 68 and guide 66d, table 71 and guide 66e to a storage roll 72. As the bell-cranks 66a are rocked counterclockwise during depression of amount keys, a pawl 75 rotates the reel 72 to line-space the strip. The bell-cranks are rocked by a lever 77 pivoted at 78 and having a camslot 79 engaging a roller stud 80 and a bell-crank while another cam-slot 81 engages a bail 82 carried by a pair of arms 83 pivoting on the shaft 6 and in front of the bail 11 and urged clockwise by springs 84. The hammer platen 66 is rocked by a forward abutment on pivoted arm 85 engaging a stud 67b, the arm 85 being urged by a spring against a stud 85a. When the arm 85 is depressed the hammer is fired. Totals, printing.-The hub 100 of total-taking lever 59, Fig. 10, carries a stud 101 engaging in a cam slot in a member 102 slidable on shaft 59a and connected by a shaft 103 and sleeve 104 to three arms 105 forked to engage the hubs of sectors 121. As the lever 59 is pulled forward the cam slot causes the arms 105 to slide laterally and to disconnect the sectors 121 from the sectors 120 thus disconnecting the " item" type wheels from the amount keys. In order that the four " extra " type wheels may be indexed, four sectors 121a are journalled on shaft 122. These mesh with gears 123a on shafts 124a, Fig. 9, which extend to the right, Fig. 10, and each carry a gear 126a meshing with gear 127 connected by a link 128 with a toothed sector 129 meshing with a corresponding type wheel used in total printing. Journalled on the shaft 122 are three arms 140 having studs 138 and urged clockwise by springs 141. Sectors 121a carry similar studs 138a by which are attached springs 141a urging the sectors clockwise. The arms and sectors 140, 121a are prevented from moving by restoring arms 142 fixed to shaft 122. The studs 138 are normally disengaged from sectors 121 which have openings 139 for the studs positioned one step away from them. The lever 59 carries a stud 147 operating in a cam slot 148 in a pivoted member 149 forked to engage a stud on a crank 154 fixed to shaft 122. When the lever 59 is pulled forward, the shaft 122 is rocked clockwise together with arms 140 to release the arms 140 for the " item" sectors 121 and to release sectors 121a for the " extra " type wheels which move under the influence of their springs 141a. The movements are timed by the cam slot 148 so that arms 140 move one step after which the sectors 121 are moved laterally. The type wheels are positioned according to the amount in the registering mechanism as follows : the register pinions have snail cams 160 which position levers 162, 166, to'position levers 167 and notches therein which are in the path of the studs 138, 138a and consequently the type wheels are positioned. The hammer 67 is then released and the total printed, when the lever 59 returns to normal. The storage and supply rolls for the detail strip and hammer are carried by side plates 61 on a detachable unit removed by pulling on handle 61a. Receipt-check printer.-This is arranged outside the machine on the right. The three item type wheels 201 are carried by nested sleeves rotatable on an extension of shaft 69 and may be detachably connected to nested sleeves 69a of the itemtype 68 for the record strip by interlocking shoulders. The printing line for the record strip is at the top while that for the receipt is at the bottom. The two groups are indexed by direct connection with sectors 129. The same teeth that bear the characters engage the sectors 129 and are formed from the soft metal cast about steel inserts. The legends to be printed are carried by an arc-shaped plate 203 while date type elements 204 are set by discs 206. Three type wheels in line with the date type are for consecutive numbering and are advanced by the means actuating the feed for the strips, deep-notched and pawl transfer being provided. Printing impression mechanism.-A rubberfaced roller platen 210 is carried at the end of a long arm 212 pivoted at 213. The hollow roller is mounted on a spindle having an eccentric midway which allows of slight pivoting for alignment and also of adjustment of the impression. An actuating arm 220 pivoted at 6 has a rear extension engaging over the bail 11. A forward extension 222 is connected by a spring 223 to the rear end of a link 226 slidable by a slot on a stud 225 on the arm 220 and connected by pin and slot 227, and 229 to arm 212. Movement of arm 212 is prevented until nearly the end of the key depression by spring latch 235 engaging lug 238. Towards the end of its stroke, the arm 220 engages the latch 235 and releases the link which is mixed rapidly by the now tensioned spring 223. An ink ribbon 320 passes from a spool 321 beneath type to spool 322, the spools being moved step by step by arms 323, 324 actuated by the feed for the detail strip ribbon. After printing, the eccentric 213 is rocked to lower the platen roller by lever 250 which is acted upon by spring 247 after release from diamond stud 256. The return of the parts is accomplished by bail 11 and its springs. Check-strip mechanism.-The strip is pulled from a supply roll R fitted with a light spring brake 271 by a finger 275 on a long lever 275a pivoted at 236. A forked lever 276 on the pivot 236 embraces a stud 277 on the actuating arm 220. A stud on lever 275a is connected by a spring 278 to a stud 276a on lever 276, and when the arm 220 moves forward, the stud 277 moves the levers 276 and 275a clockwise to pull the strip tangentially off the roll gradually and also taut across the printing line. Check-strip feed.-The lower feed roll 280 is driven from a sector lever 209 through ratchet gear. The lever 209 is rocked by roller stud 292 engaging a cam slot 293 in bell-crank 228 pivoted at 214 and connected to link 226 by stud 227. A cover for the check-printing mechanism is hinged at the right-hand of the machine and may be unlatched by movement of the tear-off blade 306 from effective to ineffective position. Specifications 131,109, [Class 106 (i)], 445,691 and 449,004 also are referred to .