Patent GB-722127-A (GB)
Title: Improvements in and relating to autographic registers and the like
Inventor: CASTLETON ALBERT EDWARD
IPC: B41L5/10
Filed: 1952-05-20
Abstract: 722,127. Autographic registers. LAMSON PARAGON SUPPLY CO., Ltd. May 20, 1953 [May 20, 1952], No. 12782/52. Class 16. [Also in Group XVI] In an autographic register or like machine having a web or webs of carbon transfer material fed through the register in interleaved relation with superposed stationery webs, both webs being adapted to be fed each time the register is actuated, means are provided to lock or prevent the actuation of the register operating mechanism, such means including a control member held inoperative by the transfer web or webs so that when the supply of transfer material is substantially exhausted, the control member will become operative - to prevent further normal operation of the register the control member being manually movable to permit further actuation of the register and being automatically returned to its operative position on each actuation. As shown, the register comprises a casing 1 with a writing plate 2 over which superposed stationery webs are fed by a rocking movement of a crank handle 3 on a shaft 4, the webs being fed as by discs mounted on a shaft 15, not shown, geared to shaft 4. Interleaved carbon webs, of which one a only is shown, are drawn transversely across the plate 2 from a roll a<SP>1</SP> by means of feed rollers 8, 9 geared together at 8a, 9a and operated by a cam on the feed disc shaft 15 which rocks a lever 12 pivoted at 13 so that a pawl 11 thereon rotates a ratchet wheel 10 on the shaft of roller 9 to feed the carbon webs a short distance only for each form length feed of the stationery webs by actuation of handle 3. A locking pawl 17 prevents reverse rotation of ratchet wheel 10. A cover plate 5 pivoted to the casing has a window 6 for writing on plate 2 and has spring loaded members 5b on arms 5a which bear on the upper surface of web a to tension it. The locking means comprises a lever 19, 20 pivoted at 18, the lever arm 19 extending adjacent and parallel to the feed roller 9 and having a press button 21 at its end and an upwardly projecting lug 22 which is adjustable transversely of the carbon web a so as to engage the underside of the web inwardly of its side edge. The lever arm 20 is connected to a light spring 23 tending to rotate the lever arm into the position shown in Fig. 2 where it will project into the path of a lug 24 on the shaft 4 to prevent operation of the handle 3. The arm 20 will normally be held out of the way of lug 24 by the pressure of the carbon web a on the lug 22 but will be moved into locking position when the lug 22 registers with a cut away area or a slot at one side of web a near the end of the web, and moves upwardly. Further operation of the register . without changing the web is attained by pressing on the button 21 to release lug 24, the button having to be depressed for each operation of the handle 3, since spring 23 returns the arm 20 to locking position. For electrically, press button operated registers, a similar lever locking means may be adapted to be moved into a position to control the press button switch or the electrical circuit to prevent actuation of the register, a release device also being included to permit single operations of the register.