Patent GB-894472-A (GB)
Title: Improvements in and relating to autographic registers
Inventor: MANUEL CHARLES JESSE
IPC: B41L5/04
Filed: 1959-08-18
Abstract: 894,472. Autographic registers. MOORE BUSINESS FORMS Inc. Aug. 18, 1959, No. 28226/59. Class 16. An autographic register includes an electric motor which drives the feed means to feed successive form lengths of a continuous web of stationery, the motor circuit being closed by a manually operable switch to initiate a feed cycle, a control member being provided which is rotatable by the motor and is connected with the web feed means so as to be driven in synchronism therewith, and a control device is associated with the control member such that when a predetermined feed movement has been imparted to the web the switch is opened and the control member locked to stop the feed means. As disclosed, the motor drive is incorporated in a known register which is of the hand-operated type, and means is provided whereby, on manual operation of a lever, the motor drive is disconnected and the register can be hand-operated. The stationery and carbon webs are fed by co-operating rollers 16, 30 which are provided with meshing gears 18, 32, respectively, and the gear 18 is coupled to the gears in the gear housing H of a motor M. The motor M and its housing pivotally mounted on a pivot 47, and can be swung clockwise about this pivot, against the action of a spring 58, by operating a toggle lever system 62, 64, 68, whereby the gear 18 is out of engagement with the motor drive and the register can be hand-operated. The gear 18 has secured thereto a cam 76 with a locking recess 79 therein in which a detent 81 on a link 77 can engage under the action of a spring. When a push-button 86 is depressed, the end 95 of a toggle linkage 93 on a spring-pressed vertically-slidable member 87 swings the link 77 clockwise about its pivot 78 so that the detent 81 is withdrawn from the cam recess 79; the opposite end 85 of the link 77 is now brought into contact with a spring arm 74 to close a microswitch S in the circuit of the motor M, and the gear 18 and feed rollers 16, 30 are driven through one revolution to feed a form length of stationery over the platen of the register. When the recess 79 is again opposite the detent 81, the latter engages within it, and the switch S is opened. The end 95 of the toggle link 93 initially engages an abutment formed by recessing the upper edge of the link 77, and a safety arrangement to free this engagement to allow the link to swing counterclockwise and return towards the cam 76, even if the push-button 86 is still depressed, comprises an angle lever 90 having one leg 100 pivoted at 101 on the vertically slidable trigger member 87, and a horizontal leg 104. The leg 104 has a nose portion 104<SP>1</SP> adapted to be engaged by a pin 105 on the cam 76 as the latter approaches the completion of its rotation, and the lever is thus swung clockwise about its pivot to thrust the toggle link 93 out of engagement with the link 77. The cam 76 may be shaped to allow the link 77 to open the switch S before a complete rotation of the cam, the momentum of the driving posts being relied upon to complete the rotation. The gearing in the housing H is driven from the motor M through a worm and worm-wheel 50, 51. In order to accommodate the motor M in a standard machine, the usual tray for the stationery web in the casing has its leading end offset towards one side of the casing.