Patent GB-633358-A (GB)
Title: Improvements in machine for casing-in books
IPC: B42C11/04
Filed: 1947-01-27
Abstract: 633,358. Bookbinding-machines. DEHN, F. B. (Smyth Manufacturing Co.). Jan. 27, 1947, No. 2487. [Class 16] [Also in Group XVI] A machine for casing in books comprises two paste boxes, in which are oppositely rotatable distributing and applying rollers, transversely reciprocable in opposite directions so that the applying rollers engage the filler on a vertically reciprocable saddle plate during upward movement thereof, when the filler-engaging roller surfaces move up at the same speed as the filler, by means of a pair of endless chains rotating the rollers, the pasting devices being separated from filler-engaging position during downward movement of the filler, and means independent of said chains for reversely rotating the rollers to a limited extent while so separated so as to place more than the normal amount of paste on the rollers for application to the upper parts of the filler when it begins to rise. A filler F, Figs. 1 and 3, is placed on one of three saddle plates 32 carried on a drum 30 which is indexed through 120 degrees to bring the plate and filler into operative position, when they are lowered and then raised between paste boxes 42 by means of a slide 34 reciprocated through a link 40 by cam action from a cam shaft 26 driven from the main shaft 12, which is rotated by an electric motor 22 when a clutch 14 is actuated by a pedal 16. The paste boxes 42 are reciprocated transversely by cam action from the shaft 26 so as to bring their paste applying rollers 46 into contact with the sides of the filler only during upward movement thereof. The rollers 46 are rotated only while in contact with the filler by means of paste rollers on shafts driven by endless chains 106, Figs. 3 and 7. The chains are driven in alternate directions by means of special links 108 with notches engaging a flange 109 on the slide 34, and are connected through sprockets 80 with the paste rollers by one-way clutches comprising driving members 88 with notches therein attached to the sprockets and annular driven members 84, spring-urged balls 90 in the notches rotating the members 84 only during one direction of rotation of the members 88. The members 84 are connected to gears rotatable with the paste rollers by means of pins actuated by knobs 100 and releasable by retracting the knobs. During the last part of the downward movement of the filler, in order to apply extra paste to the upper parts thereof, the paste rollers are rotated in the reverse direction by pawls 114 engaging ratchet teeth 86 on the members 84. The pawls in their upper positions are held out of engagement with the teeth by adjustable stops 140 which pivot them on studs 112 against the action of spring-urged detents 138, and are moved downwards to rotate the members 84 by links 116 having pins 136 moved downwards against the action of springs 120 by horizontal bars 134 carried on a rock shaft 122 rotated by cam action from the shaft 26 through links 130. The amount of reverse rotation is adjustable by rotating the bars 134 on the shaft 122 by loosening their clamping screws. Book covers C are fed from the bottom of a magazine 148 by slides actuated by a rack 164 and gears 158, 152 to an intermediate creasing station (see Group XVI) and thence by further slides to a position above the filler in its lower position. When the pasted filler rises, it lifts the cover with it, and on further rotation of the drum the completed book is brought to a position where it is removed by hand. Spreading of the filler is prevented by air blown from nozzles 141 by a pump 144 through an air cleaner 145. If a filler has not been correctly placed on the plate 32, feeding of a cover is prevented by moving a lever 178 to disconnect the gear 158 from the rack.