Patent GB-189821092-A (GB)
Title: Improvements in Book Binding Machines.
Inventor: PETTERSON LUDWIG
Filed: 1898-10-06
Granted: 1899-04-29
Abstract: 21,092. Petterson, L. Oct. 6. Bookbinding.-A machine for use in binding the sections of books together before the covers are put on is shown in end elevation in Fig. 3, and comprises a feed-table 37, a pneumatic apparatus for transferring the sections singly to a punching- mechanism which cuts T-shaped slots in the backs of the sections, and an arrangement for threading the punched sections upon a series of tapes. The table 37 is mounted upon a shaft 36 supported by two standards 35 on the frame 30, and is adjustable by means of a screw 39. The book sections are placed on edge upon the table 37, and are fed forwards by the thrust of a plate 51 secured to a movable table 47, which runs freely upon the. table 37 and is guided by arms 46 mounted adjustably upon a rod 45 carried by collars 44, adjustable on a rod 43. A series of india-rubber cups are attached to a tube 57 carried by arms 56 mounted upon a rocking-shaft 53, and connected by a flexible tube to an air pump 60, actuated by means of a disc crank 62 on the main shaft. The cups are drawn towards the lower parts of the lowest section by springs connected to the arms 56, and they are drawn away, together with the lowest section, by a spring which acts upon a fork 71 embracing a collar on the tube 57 ; the fork is attached to a link 69 connected to a pivoted lever 66 which is actuated by a cam on the main shaft. When a section has been withdrawn by the cups, it is seized by gripping-fingers formed at the upper ends of vertical rods 83, 87, secured to the parts of a sliding frame actuated by the rods 88, lever 89, and cam 68<a> on the main shaft ; the parts of the sliding frame are frictionally connected so as to allow the necessary relative motions between the fingers. Each book section is drawn by the gripping-fingers downwards and between one of a series of eccentrics mounted adjustably between two discs 96, and one of a corresponding series of plate springs carried by discs concentric with, but smaller than, the discs 96; the shaft carryiug the discs is vertically adjustable by means of screws 94. The discs are rotated intermittently through the space between two consecutive eccentrics, by means of a pawl. Just before the sections are released from the eccentrics and springs, they are punched by punches 116, secured to the bed 34, against and over which the sections are pushed by sliding blocks actuated by means of a cam on the main shaft ; the tapes are secured to the rear projecting ends of the punches, so that they are inserted in the slots soon after these have been cut in the sections. The book sections, before being gripped by the fingers, are brought into their correct position with respect to the positions of the punches by an adjustable plate operated by means of a lever 132 pivoted at 133 to the standard 35, and provided with a roller engaging with a cam 130 on the disc 62. After the sections have been punched and strung upon tapes, they are ready to be bound in book form in the manner described in Specification No. 14,742, A.D. 1898.