Patent GB-411079-A (GB)
Title: Device for binding books and the like
IPC: B42B5/12
Filed: 1934-03-19
Abstract: 411,079. Bookbinding. FISCHER, H., 125, Seestrasse, Thalwil, Zurich, Switzerland. March 19, 1934, No. 8589. Convention date, March 18, 1933. [Class 16.] In a device for binding books of the type wherein the leaves are provided with apertures engaged by a wire spiral, including a holder for holding the apertures in the leaves in the path of the wire spiral which is screwed through the apertures by being simultaneously rotated and moved axially in guides, a plurality of rollers are provided which have annular grooves thereon relatively displaced so as to correspond with the pitch of the wire spiral which engages therewith, and means are provided for rotating the rollers. Rollers 6, 61, Figs. 1 and 4, provided with uniformly spaced annular grooves 7, are rotatably and removably mounted in the upper ends of pairs of levers 4, 5 which are fixed at their lower ends on rotatable shafts 2, 3 mounted in a frame 1. The rollers are rotated from a hand-operated or motor-driven gear 10 through flexible shafts 9. The levers 4, 5 are pressed towards each other by springs, one spring being adjustably mounted on a segment secured on the shaft 2 so that the tension can be varied, and the shaft 2 is connected to the shaft 3 by crank levers and a connecting link so that on rotation of the shaft 2 both pairs of levers 4, 5 are moved simultaneously to vary the distance apart of the rollers 6, 6<1> to accommodate different sizes of wire spirals. The shaft 2 is rotated by means of a pivoted lever 12 acting through a bell-crank lever 13 pivoted thereon, and a spring 14 secured to the lever 13 and to a crank lever 15 pivoted to the shaft 2. The lever 15 is provided with a screw adjustment 16, 17 whereby the distance between the rollers 6, 61 can be regulated. When the rollers 6, 6<1> are moved apart they are temporarily retained in this position by a shoulder 46 on the lever 13 engaging a projection 47 on the frame 1. The apertured set of leaves and side covers are adapted to be placed inside distance-pieces 24 which are positioned between the rollers 6, 61. The distance-pieces 24 engage grooves in the rollers 6, 61 and are secured to a holder 25, which is removably attached by screw-means on two vertical rods 27 movable in columns 26. The rods 27 rest on a rail 28 provided with inclined supporting surfaces, and the rail can be adjusted longitudinally by screw-adjusting means, provided with a scale and pointer, to raise or lower the rods 27, and consequently to adjust the position of the distance-pieces and set of leaves to be bound in relation to the rollers 6, 6'. Between and below the rollers 6, 6<1> is a rotatable and removable roller 34 mounted on a bearing bracket 35 which is supported at each end on rods 36 resting on an adjustable rail 39 provided with inclined portions 40. The rail 39 is provided with screw-adjusting means 41, 42 as in the case of the rail 28 so that the roller 34 may be raised or lowered. The roller 34 is driven from the gear 10 by a flexible shaft 43 at the same peripheral speed as the rollers 6, 6<1>. When the appropriate distance-pieces 24 and rollers 6, 6<1>, 34 have been inserted and the latter adjusted to suit the size of wire spiral S, the rollers are rotated and the wire spiral, which rests on a support 49, is then pushed between the rollers which feed it towards the book leaves. The leaves are accurately positioned in the distance-pieces 24 so that the wire passes through the apertures previously cut in the leaves. When the wire spiral reaches the end of the book leaves it engages an adjustable contact 50 which closes an electrical circuit to energize a magnet coil 51, which attracts a plate 52. The plate 52 releases a lever 53, which in turn releases the pin of a gear-clutch 54. The gear 10 is thus disengaged from the motor and the rollers 6, 6<1>, 34 are stopped. If desired the motor itself could be stopped. A wirecutting device 56 is arranged on the left-hand bearing of the roller 34. The wire spiral moves between two cutting-jaws, one being fixed and the other being movable by means of a lever. When the wire is cut by manually operating the lever, the bound book is removed. The cutting- device may be automatically operated. The ends of the wire spiral are bent over by a device (not described) which may be incorporated in the machine. The rollers may be again rotated by depressing an arm 60 which returns the parts 52, 53, 54 to their original positions. In the modification shown in Fig. 13, a frame 71 mounted on a baseplate 70 has two bearings 76, 77 in which are removably mounted two shafts 78 carrying rollers 79 each provided with grooves. A worm-wheel 80 on each shaft engages a worm 81 on a shaft 82 adapted to be driven from a motor 88 by a slack belt 85 and pulleys 84, 86. Mounted for vertical movement within the frame 71 is a slide 72 held in the raised position by a spring 73, and carrying at its upper end a removable and freely rotatable grooved roller 75. The roller 75 can be lowered to co-operate with the rollers 79 by depressing a pedal secured to a member 91 which is connected to the slide 72 by a blade spring 96 and a pulling-member 90. The spring 96 is also connected to one end of a bell crank lever 94 which carries a pulley 93 at the other end. When the pedal is depressed to lower the roller 75 the pulley 93 presses against the slack belt 85 to tension it so that the continuouslyrotating motor 88 can drive the rollers 79. Two adjustable supports 100 each carry a removable and adjustable trough 101 for the reception of the book leaves, and the trough is shaped so that the apertures in the upper ends of the leaves are located along an arc for the reception of the wire spiral. The leaves bear against a detachable plate 102 which is provided with slots 103 spaced to suit the pitch of the wire spiral to be used.