Patent GB-259800-A (GB)
Title: Machine for automatically binding sewn books
IPC: B42C9/00
Filed: 1925-12-16
Abstract: 259,800. Ledeuil, J., and Ledeuil, J. Dec. 16, 1925. Addition to 206,955. Bookbinding-machines. - The bookbinding-machine described in the parent Specification is modified by providing (1) means for giving the glueing-roller an axial displacement in addition to the rocking movement which maintained it in the plane of the signatures, (2) mechanism for regulating the falling of a finished book from the machine, (3) means for controlling the ascent of the table from which the cover sheets are fed to the glued back of the book, and (4) electrically operated means for arresting the machine when the last cover sheet has been fed from the supply table, or if a cover sheet is incorrectly fed beneath a book carrier, or if a completed book is not released from the grippers at the delivery station. (1) The tank 25, Fig. 1, containing the glueing-roller, is provided on its underside with a straight rack 64 engaging a toothed quadrant 63 secured upon the base within which the main shaft 2 is rotatably supported, and the rack is rolled around the quadrant by a connecting rod 65 which is pivoted at one corner of the tank and connected to the actuating-mechanism of the machine. A returning spring 66 restores the members to their original positions at the completion of each rocking movement. (2) A completed book, upon its release from the gripper 5, falls in a closed condition between a row of stalks 67, Fig. 2, and a pusher 68, whereupon link mechanism 70-73 controlling the stalks causes those members to be lowered vertically within slots in the delivery table T, allowing the pusher to become operative to feed the book along the table. The stalks 67 then rise through the slotted table and pass within grooves in the pusher 68, whereby they are positioned between the latter member and the book, after which the pusher moves back to its original position, the book meanwhile being supported by the stalks. The rearward movement of the pusher provides a space for the reception of the next completed book. The pusher arm 75 and links 70-73 operating the stalks are controlled by a shaft 74, means being provided to produce a lag between the movements of the members 73 and 75. (3) The table 42, Fig. 3, from which the covering sheets are fed, is mounted on an inclined slide 76 and is raised intermittently by gearing 78 - - 82 driven by a bevel wheel 83 engaging a pawl on a pivoted arm 85, the arm being oscillated by a rotating eccentric 87 contacting therewith. An arm 89 pivoted adjacent to the nose 90 of the arm 85 is adapted to be raised to hold the latter arm away from the eccentric 87 when the table reaches a certain height, a link mechanism being provided between the arm 89 and a feeler which bears upon the uppermost covering sheet of the pile. The gears 80-82 may be displaced axially and operated manually to raise or lower the table 42 rapidly when recharging it. (4) The whole machine may be arrested by means of a treadle, and electromagnetic means controlled by switches disposed at different points is provided as an urgent stopping-device. By connecting the covering-sheet table and its co-operating feeler in the electromagnetic circuit, the machine can be arrested when the removal of the last sheet from the table allows these members to come into contact. The vertically movable table upon which the sheets are fed before their application to the glued back of a book, as described in the parent Specification, is provided with two contact members which are normally in contact and are separated when a sheet is badly positioned upon the table, thereby arresting the machine to enable the position of the sheet to be adjusted.