Patent GB-687350-A (GB)
Title: Improvements in or relating to strip feeding and imprinting apparatus
IPC: B41J11/26
Filed: 1949-04-21
Abstract: 687,350. Typewriters &c. WILLIAMS, W. P. (Standard Register Co.). April 21, 1949, No. 10653/49. Class 100 (iv). A printing machine 1 e.g. tabulator, addressing machine, cash register, or cheque writer effecting impressions on the underside of a continuous tally strip 3 progressively advanced past a printing position 4, has means for progressively turning up and inwardly over the remainder of the strip, one marginal portion to expose the matter printed on the underside of the strip, the opposite margin of the strip being advanced meanwhile along a substantially straight path. In the machine shown, a record strip 2 comprising a series of separable bills, cheques &c. is fed intermittently a form length at a time below the recording position 4 containing type which operate downwardly to print the upper surface of the strip 2. At the same time the type within the position 4 and which are operated from the machine 1 also print upon the underneath surface of the tally strip 3 which is progressively reversed over a guide block 35 with an upwardly inclined extension 35a so that the operator may ascertain the name of the person whose form, cheque, &c. is being concurrently imprinted. The tally strip 3 is advanced through line-by-line spaces for each form length advancement of the record strip 2 and in opposite direction thereto. Strip 2 is advanced one form length by the operation of a key which operates a solenoid 31, Fig. 2, turning a lever 20 about a pivot 33 and so disengaging it from a pawl 18 which under pull of a spring engages a continuously driven ratchet 14 and imparts one revolution to a disc 17 mounted on a sleeve 15, carrying a pinion 16 driving, through gear 23, a shaft 24. Adjustably fixed to the shaft 24 by a coupling 28 are pin wheels 25 advancing the record strip 2. The continuous drive is also connected by a belt 36 to a shaft 38, Fig. 3, having a similar electricallyoperated one-revolution clutch device driving a pinion 40, having a segment 41 of increased thickness meshing with a gear wheel 46 having a laterally-extending gear segment 47. The peripheral extent of segment 47 is equal to the circumference of pinion 40 so that one revolution of the latter rotates wheel 46 one amount when segment 47 and pinion 40 are engaged, and a lesser amount when they are disengaged. These two amounts of rotation advance the strip 3 via gears 52, 53, 54, 55, shaft 56 and wheel 57, corresponding amounts and represent advance required for the form heading and advance for line spacing. The gearing also drives, through wheels 66, 67 and universal joint 65, an askew pin-wheel 63 effecting in conjunction with guide 35, the reversal of the strip 3. The tally strip 3 may be adjustably fed to correct position with regard to the record strip 2, without operation of the printing machine, by depression of button 69 causing operation of the solenoid 44 associated with the electrically-operated clutch-device driving the pinion 40. The pin wheels 57 and 63 are also adjustably fixed by a variable coupling 62, and a detent wheel 48 mounted on the shaft carrying the wheel 46 has a co-acting pawl raised by a rotary cam 42 to lock the mechanism at the end of each advancing movement and hold it during impression. A toothed counter-wheel 68 bearing indicia identifying the line spacers is also geared to the advancing mechanism. A supplemental tally strip, not shown, which is engaged by the wheel 57 and an additional pin wheel 58 also revolubly adjustable by the coupling 62 may also be incorporated.