Patent GB-700892-A (GB)
Title: Machine for stitching signatures and the like
Inventor: SCHMIDTKE ALBERT HERMAN
IPC: B27F7/21
Filed: 1951-11-15
Abstract: 700,892. Feeding sheets; delivery apparatus. ROSBACK CO., F. P. Nov. 15, 1951, No. 26807/51. Class 100 (1) Saddle-like members, Figs. 1, 2, 6.-A signature stitching machine where the signatures to be stitched are moved along a saddle 2 of inverted V cross-section to a stitching machine comprises an elongated member 47 reciprocable longitudinally of the saddle 2 in synchronism with the operation of the stitching machine and having spaced fingers 48 projecting laterally beyond the saddle 2 which engage correspondingly spaced signatures upon movement towards the stitching machine but which slide by such signatures upon reverse movement. Stitcher heads 1 are supported over one end of the saddle 2 forwardly of a hollow vertical extension 3 of a narrow frame F of the machine. The machine is driven by a motor 7 which through gearing 6 drives a main-shaft 5. The stitcher heads 1 are independently adjusted longitudinally of the saddle along a tongue 12 formed in a supporting bracket 11, and are actuated by means of a shaft 15, connected by an eccentric 16 to a disc 17 on the shaft 5, an arm 18 and a transverse bar 19. The stitchers 1 co-operate with members 25 reciprocated in unison therewith. The members 25 are reciprocably mounted in carriers 26 in turn slidably held in a slot 27 formed in a member 28 on the upper end of a standard 29. Reciprocably secured to the standard 29 is a bar 31 carrying a cross head 32 formed with a slot 33 co-operating with projections 34 on the members 25. By means of the slots 27 and 33 the members 25 may also be adjusted longitudinally to correspond with adjustment of the heads 1. The bar 31 is reciprocated by a projection 37 on a cam 35 mounted on the shaft 5. The members 25 are housed in walls 40 depending from the saddle 2. A slide 43 mounted in a guide 42 extending longitudinally of the saddle is reciprocated through links 44, 45, 46 by the cam 35. The slide 43 carries a bar 47 formed with a plurality of fingers 48. Signatures to be stitched are placed against an adjustable stop 49 on the saddle 2. The arrangement is such that when the bar 47 moves to the right in Fig. 1 the fingers 48 slide under the signatures but when it is moved to the left the left-hand set of fingers 48 engage the signatures which have just been stitched and move them to a stacker while the right hand set of fingers 48 engages those placed against the stop 49 and move them to the stitching location. Delivery apparatus, Figs. 3, 4, 5.-When the signatures have been stitched the left hand fingers 48 push them past guides 70, 71 onto a stack or table 54 so that they are engaged by fingers 63 on an oscillating arm 64 and pushed against an adjustable stop 62 on the table 54. The arm 64 is mounted on an oscillatory shaft 65 operatively connected with the main shaft 5 by means of a lever 66 carrying a roller 67 engaging a cam face 67a, Fig. 2, on the disc 35. The table 54 may be raised or lowered by mechanism 57, 58, 61. The stack is retained in position by a spring biased arm 75 having an extension piece 77.