Patent GB-191411117-A (GB)
Title: Improvements in or relating to Sheet-feeding Machines.
Inventor: WADE HAROLD
IPC: B65H3/44
Filed: 1914-05-05
Granted: 1914-11-05
Abstract: 11,117. Wade, H., [Cross Paper Feeder Co.]. May 5. Pile tables for sheet feeds; separators; carriers; dropping-roller feeds.-Sheet-feeding devices are arranged in duplicate and so interconnected that the feed may be changed from one to the other without any lost interval. Each device preferably comprises a pivoted adjustable pile table 82, lifted at the forward end by a cam 84, Fig. 9, operated by a ratchet-wheel 94 controlled by the height of the pile. Feelercontrolled separator wheels 1, Fig. 9, feed the top sheet between drop rollers 19 and rollers 18. The remaining sheets are held by a presser finger 47, Fig. 3, at the rear of the pile. The stopping and starting devices may be worked by hand-levers 112, or by devices actuated from the shafts of the cams 84, when the pile is nearly exhausted. The sheets, when fed from either source, pass down tapes 79 or 72 to the same set of feeding-tapes. The pile table 82 is adjustable in the plane of the sheets by a rack 86 and pinion 85. The sheets are directed to the rollers 18, 19 by guide-bands 87 passing over counterweighted pulleys. The ratchet-wheel 94 for driving the lifting-cam 84 is operated through a masked pawl 96 controlled by a lever 103 on one of the shafts 4 carrying the rocking arms 3 in which the shafts 2 of the separator wheels 1 are mounted. Each pile has two separator wheels 1 with independent controlling- devices which comprise adjustable springs 26 for pressing the wheels 1 against the pile when they are released by timing-cams, and ratchet devices on a tubular shaft 17 controlled by feelers 33 so that the wheels 1 are lifted and presser-feet 37 lowered as soon as the front edge of the sheet at either corner passes between the rollers 18, 19. The dropping rollers 19 are actuated from a cam 68, and are connected by levers 65, 64, 63, 61, to a bar 58 for lifting the presser-foot 47, so that when the rollers 19 are forwarding the top sheet, the remaining sheets are held by the foot 47, which has devices to accommodate its position to the height of the pile. The shafts 9 are continuously driven and connected bv the chain 10. In each mechanism, a revolving arm on the shaft 9 may engage a pawl on a wheel 106 fast on the tubular shaft 17, and thus drive the whole mechanism. When it is desired to stop the mechanism, a roller 111 on an extension of the handle 112 is moved into the path of the tail of the pawl on the wheel 106, and disengages it. The handle 112 may be coupled by a latch 121 to a plate 120, and these plates 120 are connected by a link 123 so that when one mechanism is put out of action the other is simultaneously started. This is done either by one of the handles 112, or automatically by one of the links 127 each of which is connected to a plate 120 and has a catch 126 which engages a tooth 125 on a disk 124 carried by the shaft 95 and so positioned that when the cam 84 has nearly raised the table 82 to its uppermost position the stopping-mechanism is actuated, and the other feed-mechanism is simultaneously started. Each stop plate 120 has a projection which can engage a lever 116 and thereby hold the dropping-rollers 19 out of action.