Patent GB-190800934-A (GB)
Title: Improvements in or relating to Type Line-setting and Casting Machines.
Filed: 1908-01-14
Granted: 1908-07-30
Abstract: 934. General Composing Co., and Degener, H. Jan. 14. Linotype and like machines. - Relates to "Monoline" machines for setting and casting type, and more particularly to (1) the magazine and matrix release mechanism, (2) the means for operating the matrix slidebars, the stop-bar withdrawing-fork, and the collector pusher, (3) the collector, and (4) the collector carriage for holding the matrix line while it is being formed. (1) The fingers 29 of the slide-bars 25, upon which the matrices rest when in the channels of the magazine, are bevelled along their front edge, and are made as thick as possible. The backward movement of the bar 25 under the action of springs 26 releases the front matrix and allows only one matrix to drop from the corresponding supporting- bar 30 in front of the finger 29. When the finger 29 again moves forward, its bevelled face pushes back the matrices still suspended from the bar 30, and obviates the use of a shaking-device for constantly pushing along the matrices on the bar. Projections 31 on the fingers 29 cover the transverse channels 28 when the fingers move forward. (2) Mounted on a spindle 47 is a frame 36, Figs. 5 and 6, which, when oscillated by a cam 38, pushes forward the slide-bar 42 supporting the matrices. Arms 45, 46, linked to the stop-bar withdrawing- fork and to the collector pusher, are rocked by extensions 50, 51 'of the frame 36, which engage stops 48, 49 on the arms. Feathered to the shaft 39 is a spring-pressed clutch disk 54, which is held from engagment with a continuously rotating clutch pulley 52 by means of a fioger 57 engaging a projectioo 56 on the disk 54. When a matrix slidebar 42 moves backwards, a bell-crank 61 is operated to withdraw the finger 57 and thus allow oscillation of the frame 36. In a modification, the arms 45, 46 are rocked by separate cams on the shaft 39. (3) The released matrices drop into a collector box 70, Figs. 10, 11, and 15, in which they are supported at different elevations by knife-edged levers 74, and from which they are ejected by a pusher 97. Pivoted to sliding bars 78 are levers 77, which are arranged with their points in contact with the levers 74, and with rear cam-faces engaging blocks 81 on the overlying bars 78. Movement of a bar 78 causes the block 81 to release the lever 77 of the underlying bar 78, and the lever 74 corresponding to this bar 78 is completely swung out to support a matrix. The lever 74 corresponding to the bar 78 that was moved partly swings out, the relative positions of the levers 74, 77 being shown in Fig. 15, and by engagement with a groove 85, Fig. 12, or other groove in the matrix, prevents the matrix from rebounding. The collector box has a fixed bottom on which the matrix may rest, the bottom lever 74 in this case acting as a pawl. In a modification, the bars 78 have cam-shaped extremities, and operate the levers 74 without the aid of levers 77. (4) Fig. 19 shows means for holding the matrix line during its formation and comprising a member 100 slidable in guides in a carriage held by a spring 106. The matrices 102 are pushed from the collector over pawls 117. When the line is completed, a plate 104 in the carriage strikes a stop 105 and is moved backwards, thus allowing the slide 100 to spring back through a slot 110 in the plate and releasing the matrices. In the return movement of the carriage, the lever 115 strikes a stop and resets the slide 100. In a modification, the member 100 moves obliquely so as not to wipe back over the face of the end matrix. Fig. 25 shows a further modification, in which the member 100 has a cam-face 111 co-operating with a slotted plate 112.