Patent GB-1110524-A (GB)
Title: Accounting machine record handling apparatus
IPC: B41J11/46
Filed: 1965-12-22
Abstract: 1,110,524. Selective printing. BURROUGHS CORPORATION. 22 Dec., 1965 [24 Dec., 1964], No. 54383/65. Heading B6F. Platen and feed roller rotation for blanking feeds; sheet feeding arrangements.-An accounting machine operable cyclically and having type-bars 46, Fig. 3, with slidable type carriers 50, is provided with a pivotally mounted sheet guideway 162 (Fig. 20) having a pair of sheet feeding rollers 194, 197, which feed an account sheet 227 into an open throat formed by the platen 86 and feed rollers 88, the sheet 227 being arrested at the next printing line by a sensor 232, Fig. 21, co-operating with a brake member 212, whereby the sheet feeding rollers 194, 197 are disengaged from one another after the sheet 227 has been fed to the next line and the throat closed by engagement of the platen 86 with its associated rollers 88 so that the sheet may be line-spaced by the platen. To insert a new account sheet 227 into the guideway 162 a key is depressed to actuate a clutch 397 (Fig. 32) which pivots a bail 110 through a crank mechanism 403, 405 and slide 400, the bail 110, Fig. 43, rocking a shaft 102 through levers 95, 100 so as to pivot a further lever 104, provided with a guide slot 106 in which engages a pin 108 of a bracket 90 carrying the platen 86 and, thereby pivot the bracket 90 about shaft 92 to move the platen 86 away from the rollers 88. Simultaneously with the pivotal movement of the platen the bracket 90 (Fig. 16) pivots forwardly a support 139, which houses the guideway, about a shaft 146, the pivotal movement of the support 139 causing a shaft 314, Fig. 21, to be rotated by a bellcrank lever 338 (Fig. 10) whose cam follower 345 cooperates with a cam slot 342 so as to move the feed rollers 197 (Fig. 20) towards the rollers 194. Shaft 314 (Fig. 26) is rotated anticlockwise, whereby a yoke 316 provided with cam surfaces 330 on depending arms 318 rocks a shaft 201 through cam follower 322 so as to press the rollers 197 (Fig. 20) which depend from distel ends of leaf springs 199 into engagement with the rollers 194. Opening of the throat may also be effected by actuating the clutch 397 remotely by means of a programme pin 130, Fig. 43, depending from underneath the carriage 36 and actuating via a lever 440 (Fig. 36) a bellcrank 438 which in turn through a link 436 rocks a bellcrank 432, the latter rocking an arm 420 (Fig. 32) on bail 418, whose other arm 414 displaces a slide 408 to disengage clutch releasing pin 407 from a clutch arresting lug 406. The throat may also be opened manually by a manual lever 349 (Fig. 10) a spring 358 providing the toggle action. Following opening of the throat the account sheet 227 (Fig. 27) is inserted into the guideway 162 whereby the leading edge on the one hand pivots a lug 304 on a brake member 302 out of the guideway a cam surface 756 pivoting a cam follower 754 to condition a switch 699 for starting a motor 240 (Fig. 17) for driving of the shaft 192 on which the rollers 194 are mounted and, on the other hand, pivots a brake member 212 (Fig. 23) to align its cam surface 214 parallel to the guideway. The account sheet 227 is then fed into the open throat by rotation of the rollers 197, 194 until one of a plurality of slits 229 (Fig. 3) which are representative of a printing line opposite type-bars 46, Fig. 43, and disposed along a marginal edge of the sheet 227 engages a projection 213, Fig. 21, on the brake member 212. Spring urged feeler 232 assists in the engagement. Continued rotation of the feed rollers 194, 197 pivots the brake member 212 about the shaft 192, whereby the brake member, which forms a clutch in conjunction with a spring 205 (Fig. 18) and sleeve 204 mounted fixedly on the shaft 192, arrests the shaft 192, but the motor 240 (Fig. 17) continues to rotate via a clutch member 246 to drive a disc 254 slidably along a lead scrow to thereby actuate a microswitch 258 via a bellcrank 256, actuation of the micro-switch interrupting the supply to the motor and conditioning the motor drive for ejection of the account sheet which takes place on depression of a key and reversal of the movements of the mechanism. Line-spacing mechanism.-When the carriage arrives at the end of a line a programme pin 130 (Fig. 15) engages a rod 594 to pivot a bellcrank 592, whereby a nose on lever 566 is placed in the path of a pin 576 on a lever 574 by means of link 588, bail 584 and pin 582. As the lever 574 is displaced to the right by the pin 576 when lever 574 is oscillated by a cam 570, a lug 564 (Fig. 33) pivots a lever 560 mounted on shaft 550, to pivot the latter and thereby release a one-revolution clutch 520 by disengaging a lug 546 on a bracket 548 which is mounted fixedly on the shaft 550. One end of the clutch is provided with a crank pin 530 which oscillates a bail 126 (Fig. 15) the latter rocking a lever 120, Fig. 43, which is articulated at 118 to a line spacing pawl 116, whereby the pawl whose end 124 abuts a hub of lever 100 is moved in a forward and arcuate direction into engagement with the line spacing ratchet 114. 1,110,545. Feeding webs. CANADIAN GENERAL ELECTRIC CO. Ltd. 16 July, 1965 [25 July, 1964], No. 30374/65. Heading B6B. [Also in Divisions F2 and G3] Variations in the length of a web loop 6 in a suction column 5 are detected by a light sensitive arrangement, the output of which is fed to a lead circuit and amplifier which controls the operation of an hydraulic valve 94. Fig. 10, governing the hydraulic pressure applied to a brake 18 on the web-roll 9. Valve.-Liquid is pumped from the reservoir via a flow valve 82 to the cylinder of the brake 18, and the pressure is varied by allowing the liquid to bleed off via orifice 101 under the control of valve member 103. High pressure liquid flows from a tube 91 and through an orifice 93 to impinge on the upper surface of the valve member 103. By deflecting the tube 91 with an electromagnet 109 controlled by the lead circuit and amplifier, the amount of liquid impinging on the upper surface of the valve member 103 can be varied. The equilibrium position of the valve member 103 is therefore varied, thereby varying the bleed off of liquid from the orifice 101. The pump pressure is controlled by an adjustable pressure relief valve 84, having a safety valve 85 placed in parallel therewith. Suction column.-A series of lamps 56, Fig. 6, are positioned alongside an inner glass wall 52, so that light rays 58 passing through that portion of the suction column not occupied by the loop strike a reflecting surface in the column. Some of the reflected rays 59 impinge on a light sensitive device 60 such as one or more semi-conductor cells, which converts the light energy to electrical energy. The electrical signal obtained from the device 60 represents the position of the loop 6 relative to the column, and this signal is fed into the lead circuit and amplifier to control the brake. To compensate for the change of inertia of the web-roll 9 as the diameter thereof decreases, a mask (117, Fig. 12) may be placed in the light gathering box 55 of the column, so that the pattern of tight transmitted through the box is altered, so that the signal is modified according to loop length. To compensate for friction between the web loop and the side of the column, the suction column may have a pair of converging side walls (121 and 122, Fig. 13) which converge according to the expression # = 2 sine <SP>-1</SP>Á where # is the angle between the side walls and Á is the apparent coefficient of friction between the web and the side wall in frictional engagement with the web during withdrawal from the column. To accommodate webs of different width, each end wall of the suction column may be mounted for transverse movement on a " scissors jack " (140, Fig. 15).