Patent GB-191229895-A (GB)
Title: Improvements in or connected with Paper Piling or Laying Machine.
Inventor: VICKERY FREDERICK WILLIAM
IPC: B65H31/36
Filed: 1912-12-28
Granted: 1913-12-24
Abstract: 29,895. Vickery, F. W. Dec. 28. Delivery apparatus.-Apparatus for piling sheets of paper &c. of the kind described in Specifications 17,257/06, 21,485/10, and 12,143/11 is constructed with vertically reciprocating pressing-devices, preferably having inclined teeth, arranged next to the side gauges for the sheets, and the movements of these pressers control mechanism for raising the delivery apparatus or lowering the table in such a manner that the top of the pile is maintained constantly at a correct level. As shown, the shafts of the delivery band 43 and rollers 44 are carried by frames 10 which also support auxiliary frames 5 carrying wedges 7 for curling the sheets prior to delivery on the pile, and the side ganges 6 against which are arranged the pressing-devices 1, one or more of which may be arranged on each side of each gauge 6. The gauges 6 are cut away to allow the movements of the pressers 1 which are distanced by blocks 8<a>, and are formed with angled teeth 8, Fig. 3. The pressers 1 are connected by links 2 to a lever 3 operated by tozzle links 15<a>, 15<b> from a shaft 14 which is oscillated by the action of a cam 18, Fig. 4, on a roller 17 on an arm 15 on shaft 14. The cam raises the levers 3 and pressers from the pile and these return under the action of gravity or of springs. The cam 18 is carried by a freely mounted wheel 19 on a shaft 11, the wheel 19 being constantly driven by gearing from the shaft of the delivery belt 43. The wheel 19 is normally clutched to the shaft 11 by clutch elements 20, 21 for part of each revolution of wheel 19, and the intermittent movements of the shaft 11 are transmitted by worm gearing 12, 13 to two screwthreaded shafts 9 which thus raise the frame 10 and its associated parts by engaging nuts on this frame. The clutch elements 20, 21 are in the normal working of the machine put into engagement by the action of the end 27 of a rod 26, which slides in a fixed guide 25, on a face-cam 24 which rotates with the wheel 19, this cam 24 being integral with an edge-cam 23<a> which reciprocates the rod 26, which is under the action of a spring 29. The clutches are uncoupled by the action of an extension 25<a> of socket 25 on a cam-piece 22 on the wheel 19, which is thus moved axially with the clutch member 21 away from the fixed member 20. Should the pile be at too low a level, the lever 3 is not arrested by the engagement of the pressers 1 on the pile but by engaging a roller 39 on a spring-controlled lever 32 normally kept by a spring 34 with one end in contact with a bar 35. The roller 39 is thus depressed and a catch 31 on the lever 32 engages a notch 30 in the rod 26 and prevents its return under the action of the spring 29, whereby the end 27 of the rod 26 fails to throw in the clutch members 20, 21 and the raising of the delivery apparatus is delayed until the pile assumes the correct level. The catch 31 and notch 30 are undercut to prevent them from disengaging until the rod 26 is relieved of the action of spring 29 by the cam 23. According to the Provisional Specification, the levers 3 are oscillated by link- and-lever mechanism from an oscillating eccentrically-mounted shaft.