Patent GB-416044-A (GB)
Title: Improvements in and relating to book glueing machines
IPC: B42C9/00
Filed: 1933-03-06
Abstract: 416,044. Bookbinding. LONGMANS, GREEN, & CO., Ltd., 39, Paternoster Row, and PEARTON, H. W., 32, Great Saffron Hill, both in London. March 6, 1933, No. 6730. Addition to 360,966. [Class 16.] The machine for glueing the backs of books composed of sewn sections or signatures described in the parent Specification is modified in that the spreading-brush 5 for the glue is arranged so that it does not normally project above the level of the table 3, but is only raised to its operative projecting position during the passage of a glued book thereover. A plate carrying the brush 5 is secured on the open upper end of a sleeve member 102 adapted to slide vertically on a tubular member 103 which is in communication with a heated water bath 129. The sleeve 102 is provided with pins which engage in slots in levers 106 secured on a shaft 107 which can be oscillated from a shaft 115 through bevel gears 114, 113, a vertical shaft 110, and further bevel gears 109, 108. When a book leaves the glueing-roller 4 and passes from under a presser-bar 31 (both not shown), its leading edge displaces a roller 119 upwardly. The roller 119 is mounted on a member 118 adjustably mounted for transverse movement on the shaft 115 which is thereby rocked, and consequently the sleeve 102 and brush 5 are raised so that the latter projects slightly above the level of the table 3 into contact with the back of the book. The arrangement is such that the leading edge of the book will have passed completely over the brush before the latter is fully raised. The framework 111 carrying the presser-bar 31 and the shafts 110, 115 has screw-thread engagement with a spindle rotatable by means of a handle 125<a> for vertical adjustment of the framework, and the bevel gear 113 is splined to the vertical shaft 110. The shaft 110 is made in two parts so that it can be adjusted in length. The presser-bar 31 is connected by screw-means at one end and by a link at the other to a member carried by the framework 111, and is spring- pressed away from the member. The levers 26 by which one of the feed chains 7 may be adjusted are shortened in the present machine, and connected by links 27 direct to the arms 126<a> on the movable carriage 126 carrying the feed chain, and this carriage is provided with rollers 127 adapted to engage transverse grooves 128 in the machine frame 1. The glue bath 44 is separate from and rests on the water bath 129, the tubular member 103 being secured to and disposed around an aperture in the bottom of the glue bath, which aperture communicates with the water bath. The water bath 129 rests on slides 130 each supported on two links 131 which connect the upper ends of a pair of pivoted levers 132. The levers 132 at the discharge end of the machine are mounted on a transverse shaft 133 adapted to be operated by a hand-lever 134, in which case the slides 130 are lowered vertically, and likewise the glue bath and spreading-brush 5. The pins on the sleeve 102 will be disengaged from the levers 106, whereupon the glue and water baths and brush may be slid longitudinally of the machine on the slides 130 for inspection purposes. The steam which arises from the water bath passes upwardly to the brush 5 and keeps the bristles of the latter moist and soft.