Patent GB-191023281-A (GB)
Title: Sheet Feeding Device.
Inventor: HEIDE HENRY CONRAD
IPC: B65H9/00
Filed: 1910-10-07
Granted: 1911-10-09
Abstract: 23,281. Heide, H. C., [Autopress Co.]. Oct. 7. Sheet-registering devices; pile tables; sheet separators; dropping-roller feeds.-Relates to a sheet-feeding mechanism, whereby the sheets may be separated from the pile either mechanically or by hand, the automatic separator and the hand-feed board being interchangeable for position, and the sheets in either case following the same course to the printing or other machine, during which passage they are registered against the side and front stops. The sheets are supported on a table, which is raised, as the sheets are removed, by gearing from a ratchet-wheel 30 with which a pawl 35, on a bar 37 reciprocated by a cam 45, is adapted to engage. The bar has an upstanding stud 40, which is in alinement with an arm 50 pivoted on a bracket 38 and provided with an arm 51, rocked by a slotted link 52 from a lever 54. Connected to the arm 51 is one arm 60 of a bellcrank, which periodically lowers a detector roller 63 on to the top of the pile. If the pile has not been sufficiently reduced, the arm 50 remains in line with the stud 40 and prevents a spring from returning the rod 37. The wheel 30 is prevented from running back by a pawl 33. The sheets are separated from the pile by a separator, which is reciprocated within a frame 2, by a link 70, a lever 72, and a link 73, from a cam on the shaft 43. The sheetseparating means is of the kind set out in Specification 23,283/10. If it is desired to feed the sheets by hand, the whole frame 2 is turned over on the pivot 11 until it rests on brackets 15, the link 70 and the bell-crank 60 being forked to permit of easy disengagement from their respective parts. A hand-feed table may then be placed in position. The separated sheets are conveyed to the machine by drop-rollers 102, co-operating with a positively-driven tape-roller 100, the drop rollers being carried by a shaft 106 rocked by a lever 54 from a cam 56. If the sheets are fed by hand, their passage forward is timed by stops 80 on a shaft 82 rocked by a finger 123 on the shaft 106. On its way to the machine, the sheet is kept down on the tapes 146 by rollers 150 and balls 160, both of which are supported in arms adjustable along a longitudinal bar 140 carried at one end by the shaft 82. To prevent more than one sheet from passing, a flexible finger 144, adjustable by means of a set-screw 145, is provided. Should no sheet reach the front stops, the machine is stopped by a suitable detecting-device, suoh as that described in Specification 9052/09, [Class 100 (ii), Printing processes &c.], and comprising a rising and falling finger 210 on a shaft 198, which, when a sheet is present, prevents the endlong movement of a shaft 212, controlling the stop mechanism. When the sheet reaches the front stops with its rear edge just clear of the rollers 150, it is registered sideways by a member attached to a transversely-moving bar, actuated by a lever 222 and a cam 225 on the shaft 43. The front stops are mounted adjustably on a shaft 184, which is rocked by an arm 196 carrying a roller in engagement with a lever 198, rocked by a cam on the shaft 43.