Patent GB-227564-A (GB)
Title: Improvements in sheet delivery mechanism for printing machines
IPC: B65H29/16
Filed: 1923-11-08
Abstract: 227,564. Linotype & Machinery, Ltd., Parker, T. R. G., and Spence, F. Nov. 8,1923. Delivery apparatus.-Relates to sheet-delivery mechanism wherein a reciprocating carriage for delivering the sheets printed side up and an oscillating fly for delivering the sheets printed side down may be alternatively operated in conjunction with main delivery tapes by which the sheets are conveyed from the printing- cylinders, and comprises the combination of a set of main delivery tapes, a reciprocating carriage having tapes reciprocating therewith and adapted to receive the sheets from the main delivery tapes and deposit them on the delivery board, and a set of oscillating fly sticks. The oscillating fly is of ordinary kind and is located above the reciprocating carriage so that the fly sticks act as sheet guards when the carriage is operating. Means are provided for adjusting the main delivery tapes to coact with either of the deliveries, and removal, replacement, and adjustment of various parts of the apparatus are provided. for. The sheets are conveyed from the impression cylinder 23 by the main delivery tapes 6 and are transferred, for delivery to the delivery board 32, either to the tapes 7 of the reciprocating carriage or to the fly sticks 8 oscillating on a shaft 25. For locating the upper flights of the tapes 6 above the carriages tapes 7 when the carriage delivery is to be employed, or above the fly sticks 8 when the fly delivery is to be employed, the shaft 9 of the tape pulleys distant from the impression cylinder 23 is supported in arms 10 secured to a shaft 11 carried by a pair of arms 12 on a rock shaft 13 operable bv a hand lever 15. An arm 18 loose on the shaft 11 is adjustably clamped by a bolt 20 and slot 21 to an arm 19 fast on the shaft 11 so that the the tension of the tapes 6 may be adjusted, and the arms 10 are secured in their position of vertical adjustment by a bolt 16 passing through the side frame 14 and through a slot 17 in the arm 18, the slot 17 being so shaped that the tape pulley shaft 9 is constrained. to move concentrically about the other tape pulley 22 adjacent to the impression cylinder. The rack 50 actuating the oscillating fly is adjustable, relatively to its operating mechanism, to enable the toothed segments 51 on the shaft 25 to be turned anti-clockwise for lowering the ends of the fly sticks 8 when the fly delivery is to be employed. The fly stick rest rod 31 is removable from its supporting arms 35 which may be turned down out of the way when the rod is removed. Sheets transferred to the carriage tapes 7 are prevented from curling upward by the fly sticks 8, and beyond these by guide fingers 24 to ensure the sheets reaching correctly the stop fingers 26. The fingers 24 are carried by a shoe 27 removably secured to the shaft 25 by a screw 28, and the fingers 26 are carried by a removable rod 29. Other sheet guard fingers 30 are adjustably mounted in slotted arms 34. and may be fixed so as to extend between the free ends of the fly sticks 8. The stop 44 engaging the chain 43 of the reciprocating carriage is carried on a rock shaft 45 controlled by the toggle 46, 47, spring 48, and adjustable stops 49. The inner end of the delivery table 32 may be supported in one or other of two pairs of hooks 38, and the other end of the table carries brackets 41 and clamping-screws 40<a> adapted to be fixed in any position along pins 40 on brackets 42 secured to the rails 3.