Patent GB-191003483-A (GB)
Title: Paper Registering and Feeding Device for Printing and similar Machines.
Inventor: SCHNEIDER OTTO
IPC: B65H11/02
Filed: 1910-02-12
Granted: 1911-02-13
Abstract: 3483. Schneider, O. Feb. 12. Feeding and registering sheets; feed-tables. -Relates to apparatus for feeding and registering sheets, fed either by hand or automatically, and capable of being readily attached to cylinder printing- machines particularly of the underfed type. The device comprises a frame 1, supported on the machine frame by wheels 2 and clamped in position by nuts 78. The sheet is fed automatically by rollers 9, 66 and 10, 67 or by hand over a table 65 to a laterally-movable table 11, and a pivoted feedtable 15, into position against the stationary gauge 16, which has a bearing-surface the full width of the sheet. On the table 11 are two side gauges 12, in which are bearings for a square shaft 22. On the shaft 22 are mounted levers 20 provided with pins adapted to engage opposite sides of loosely-mounted arms 33, and an arm 25 adapted to be held on either side of its dead-centre by a spring 27. The shaft 22 carries an arm, engaged alternately by a trigger 32 and a stop 32<1> on a rod 31 reciprocated by a cam 30, by which means the shaft 22 is rocked from side to side and the arms 33 caused to raise or lower the gripping-jaws 35 sliding on the side gauges 12. The feed-table 15 is pivoted on centres 14, and is rocked by a link 47 connected to a transverse shaft 42, resting in the forked end of the arms 37. The registering- table 11 is reciprocated by a link connected to a centrally pivoted bell-crank oscillated by a rod from two oppositely-set cams on the main shaft. The rod carries two rolls, adapted respectively to engage the two cams on the shaft. Either roller may be thrown out of action to allow the register to pull the sheets to position when operating on large thin sheets, or to push them when stiff material is being dealt with. By turning the connexion over from one side of the bell-crank to the other, the sheets may be registered to the right or left. After having been registered by the table 11, the sheet is prevented from further movement by a top plate 17 resting on rails on the table 15 and rollers 18, turning freely on the shaft 48 in arms 49 loosely pivoted on centres 14. The sheet, on being fed by the rollers 9, 66, passes to the rollers 10, 67 which at the moment are running at the same speed. The speed of these rolls is then reduced to retard the sheet, and then allow it to fall by gravity against the front stop. In this position, the sheet is registered by the table 11, after which the rollers 18 are allowed to fall on the sheet. The table 15 is then raised by the arms 37, the upper plate 17 being at the same time withdrawn from the cylinder grippers by levers 40 pivoted at 39, and links 44. Prior to the sheet being taken, the gripper jaws 35 are raised by the return of the bar 31, a pivoted finger on the bar 31 also serving to lift the rolls 18. When the table 11 is arranged to push the sheets to position, the finger 32 is turned over to throw the clamp 35 out of action. The registering-table 11 may be replaced by two smaller tables, each carrying one of the side gauges 12.