Patent GB-190711467-A (GB)
Title: Improvements in or relating to Type Casting Machines.
Inventor: HANIGAN ADAM WINFIELD
Filed: 1907-05-16
Granted: 1908-05-14
Abstract: 11,467. Hanigan, A. W. May 16. Linotype machines; monotype machine.- Relates to machines for casting type in order of composition and locking together the types forming a line by means of a locking- strip which is impressed intogrooves in the types. The types are cast from vertically - sliding matrix bars, each .of which has a number of characters on its edge and which are positioned by means of keys. The depression of a key starts a highspeed shaft which rocks forwards a metal pot and causes the injection of metal into that one of a row of mould cavities which is opposite to the selected matrix. The cast type is ejected from the mould on to a carriage on which the line is assembled. Wedge spacers, are inserted between the words and are forced upwards to justify the line. The spacers are then withdrawn and the justified line is clamped between two plates. A curved lead locking-strip cast by the machine is pressed into alined grooves in the types, and the completed line, Fig. 42, is transferred to a galley. The lineclamping, lead strip casting and impressing, and galley mechanisms are actuated by a low-speed shaft geared to the highspeed shaft and controlled by a clutch which is operated by a hand-lever. Matrix bar releasing-mechanism. The depression of a key-rod 1, Fig. 5, causes a cam 2 thereon to rock a bar 3 which rests between lugs 4 on a sliding bar 5. One of a number of dogs 6, Fig. 16, which normally support the matrix bars 10, is thereby rocked, and the released matrix bar falls until arrested by one of a number of stopping- plates 15. The plates 15 are projected by levers 27 actuated by rocking bars 24, which are engaged by cams 23 on the key-rods 1. Each of the bars 3 actuates a slide 34 which causes the high-speed shaft 43 to be locked to its driving-pulley 44, Fig. 12; by means of a semicircular key 41. Type-casting mechanism. A cam on the shaft 43 rocks the metal pot 49 against the mould 61. An alining-plate 55 connected to the metal pot is thereby caused to engage notches in the backs of the matrix bars. A cam-actuated locking-slide then presses the matrix bars against each other and against the frame containing them, to prevent lateral motion. The metal pot 49 is provided with a separate well 68 and plunger 71 for each mould cavity in the mould 61. The plungers are actuated by levers 72 which are urged downwards by springs 74 but are normally supported by rods 75 which rest on a support 77. Above each matrix bar is a plate 78 which falls when the matrix is released. When the metal pot moves forwards, the plate 78 corresponding to the released matrix pushes the rod 75 off the support 77 and allows the plunger 71 to be actuated by the spring 74. Connected with the metal pot 49 is a reservoir pot having a plunger which is actuated after the casting of each line of types. Type mould. The mould consists of a lower section 61<a>, Fig. 26, having a dovetailed rib 92 which forms grooves in the types, and an upper section 61<b>, Fig. 25, having a dovetailed groove 93 and a number of mould cavities 70. The upper section is made in two parts which, after the casting of a type, are moved apart and are raised from the lower section to permit of the ejection of the type. Matrix bar returning-mechanism. The released matrix bar is returned to normal position by one of a number of dogs 137 which are raised by racks and pinions on the shaft 43. Type assembling and justifying mechanism. The types are ejected from the mould on to guiderails 112, Fig. 33,. by a reciprocating slide which. pushes them past retaining-dogs 231. The advancing types, which are trimmed by a knife 228, Fig. 34, push back a head 176 carried by sliding rails 113, 114 which are urged to the right by springs. The words are separated by spacers 159 which are ejected from a magazine 160 by a key at the keyboard. When a line has been completed, the wedge-shaped spacers 159 are pushed up to justify the line by a slide 190 actuated by a bandlever, the length of the line being determined by a fixed stop which is met by the head 176. The spacers 159 and the head 176 are then drawn down by the slide 190 and the line of types is clamped in a carriage 200 consisting of plates 201, 211 which are pressed together by cams 214, Fig. 34, actuated by a slide 217. Lead strip impressing-mechanism. The line is conveyed by the carriage 200 beneath an anvil 223, Fig. 39, opposed to which is a hammer 218 actuated by toggle-levers 294, 295. A curved lead strip is placed on the hammer between spring- pressed side plates and is pressed into the grooves in the types. The cams 214 are then rocked to release the line which is retained during the return of the carriage 200 by a sliding dog 225. A plate 226 connected to the carriage 200 receives the line and, at the next stroke of the carriage, delivers it to the galley. Lead strip casting-mechanism. The lead strip mould consists of two separable sections having a curved mould cavity between them. After the casting of the strip, the mould is opened and the strip is trimmed by a knife 263, Fig. 39, attached to the carriage 200. On the return of the carriage, the strip is pushed by an ejector 269 on to the hammer 218. Galley mechanism. The completed line is pushed off the plate 226 on to a galley into which it is depressed by a reciprocating plunger. Fixed knives trim the ends of the line as it enters the galley. Driving-mechanism. The low-speed shafc 277, Fig. 54, is geared to a shaft 359 which is connected by a chain 362 with a sprocket-wheel 356 loose on a shaft 353 geared to the high-speed shaft 43. The wheel 356 can be locked to the shaft 353 by a sliding clutch member 354 acted on by a spring, and engaged by an arm on a shaft 347. A forked arm 346 pivoted to the shaft 347 is connected by a link 344 with an arm on a shaft 157 which is provided with a hand-lever 192. The end of the arm 346 is normally engaged by a cam 349 on a spur-wheel 350 so as to hold the clutch out of operation. When the arm 346 is rocked by means of the hand-lever 192, the clutch is thrown in by the spring, and is thrown out after one revolution of the low-speed shaft 277 by the cam 349. The first part of the motion of the lever 192 operates the justifying-slide 190. A cam 375 on the link 344 enables the clutch to be thrown out at any desired moment.