Patent GB-179603-A (GB)
Title: Improvements in or relating to type setting and casting machines
IPC: B41B7/00
Filed: 1921-02-02
Abstract: 179,603. Wade, H., (McFarland, J. N.). Feb. 2, 1921. Type-bar-making machines; single-type com- - posing and casting machines; assembling and distributing matrices ;driving-mechanism. - Machines employing circulating matrices are adapted to cast single letters or logotypes as well as type bars, means being provided for adjusting the length of the mould and simultaneously determining the length of the assembled line. (1) The matrices are delivered by the usual inclined belt in front of a star-wheel 147, Fig. 5a, and against a finger 148 carried by an assembler-slide 126 which is thereby moved to the left under the control of a brake 136. The finger 148 is pivoted to the slide and is retained in the path of the matrices against the action of a spring by a latch, which is disengaged when the slide advances to deliver the line. A sliding finger 157, which is adjustable along the slide 126 according to the length of the line, is moved up behind the line by a spring when released by the advance of the slide. (2) The machine, is driven from a constantly-running gear 176, Fig. 16, which is loose on its shaft 177, through an ex. panding clutch which is closed by a spring and can be, disengaged by a sliding collar 185 operated by a lever 192 or by toggle-levers 193. The main cam-shaft 200 is geaned to the shaft 177 and carries a disc 197 having a spring latch 198, which disengages the clutch after one revolution. and also an emergency latch 199, which acts in certain cases to stop the cam-shaft before its revolution is completed. The latch 198 normally engages a lever 202 which acts through the lever 192 to hold out the clutch, the latch being pushed in to permit the cam.shaft to start. Depression of a starting-lever 217, Fig. 3. causes a clutch to connect a cam 209 to a constantly-running shaft 206, the cam acting through a lever 226 to move the assembler-slide to the left and deliver the line to the mould. A cam on the main camshaft prevents the engagement of the clutch until the cam-shaft has completed its revolution. The assembler-slide, on its return, rocks an automatic starting-lever 235 which acts through a lever 242 to push in the latch 198 and permit the camshaft to rotate. Means is provided for starting the cam-shaft by hand and for locking the clutch by means of the toggle-levers 193 so that it cannot be started automatically. (3) The assembled matrices rest on rails 267, Fig. 5<a>, which are mounted to slide in the assembler slide, an additional movable rail being provided to hold twoletter matrices in the upper position. When the assembler-slide moves to the left, the rails meet and are arrested by rails 270, 271, 272, Fig. 11<d>, carried by a presentation-slide 300 which holds the line in front of the mould. The rear finger of the assembler-slide then delivers the line to the presentation-slide, which is moved towards and away from the mould by elbow-levers 303, registration being effected by dowel-pins 300<a>. The action of the levers 303 is prevented when repeat type-bars are required. (4) After the casting, the presentation-slide is raised by a slide 320 to carry the line to the second elevator, the rail 272 which supports the matrices in the upper position being withdrawn by a lever 324 and an incline 325. The transfer-slide, which delivers the matrices to the second elevator, is operated through a yielding connection, and is prevented from acting if the presentation-slide has not raised the line to the proper position, or if the second elevator is not in position to receive the line. If the transfer-slide fails to make a full stroke, the emergency latch 199 is permitted to project from the disc 197 and the cam-shaft is stopped. If the second elevator fails to descend readily, it is locked in the upper position by a latch. The line is moved off the second elevator by a pusher actuated by a spring and controlled by a cam which acts through a second spring. Moulds ; clamping matrices ; ejecting type-bars. -The mould comprises a fixed lower block 290, Fig. 6, a vertically movable upper block 291, a sliding body-piece 292, and a vertically movable upper block 291, a sliding body-piece 292, and a vertically movable end-gate 294. The end-gate and upper block are operated by a common slide through springs, the end-gate being clamped by an eccentric. The length of the mould-slot is determined by contact of the, body-slide 292 with a stepped cylinder 353, which is adjusted by hand end also determines the length of the matrix line by intercepting the rear finger 157 of the assembler-slide. The line is justified between a projection 346 on the end-gate and the end of the slide 292. The type-bar is ejected by the slide 292, the movement of which is adjustable, and passes over a spring-supported bridge into a galley. Metal pots and pumps.-The pump is operated by a spring 397, Fig. 4, under the control of a cam, the upper end of the spring being seated in a threaded cup 399 by means of which its tension is adjusted. The pump-rod has at its upper end a nut 401 which may be screwed down to prevent operation of the pump. The pump cam-lever has in addition to a roller running on the cam, an angular end which slides on the cam so as to give a quick drop. The choker 381 is operated by a lever 382 and a rocking arm 383 carrying a spring pawl which drops into a notch 393 in the lever 382 so as to give a quick return to the choker. If the line is short, operation of the pump and choker is prevented by the excessive rise of the justification lewer which causes two spring bolts to move under projections on the. pump and choker operating rods. Magazines.-three magazines 102, Fig. 3, are removably mounted in a frame 105 having trunnions 106 on which are rollers 107 running on rails 108, so that the magazines may be tilted back for removal until a roller 108<b>rests in a socket 108<a>. The magazine frame has three, see tions each of which supports a magazine by means of transverse bars. The frame is adjusted along the rails 108 to position the required magazine, and is provided with registering-pins and notches, and with a locking-bolt to clamp the frame in position.