Patent GB-190812675-A (GB)
Title: Improvements in or relating to Type Line-setting and Casting Machines.
Filed: 1908-01-14
Granted: 1908-08-27
Abstract: 12,675. General Composing Co., and DegÚner, H. Jan. 14. Type-bar making machines.- Relates to "Monoline" machines for setting and casting type and more particularly to (1) the casting and galley mechanism, and (2) the means for loosening the line and bring- ing the bottom edges of the matrices to a common level preparatory to the distribution of the matrices. (1) The pump plunger 122 of the casting-pot, Fig. 1, is connected to an arm 124 rocked by a cam 127, a spring attached to the arm being tensioned by a cam 128. A drop in the cam 127 allows the descent of the plunger, and immediately afterwards the cam 128 releases the spring 136. The cam 127 then returns the plunger and the cam 128 resets the spring. A modification ia described in which the spring is attached to a cam-operated lever pivoted to the arm 124. In a modification the spring and plunger are set by cams without the use of levers. The casting- pot 120 and mould 148 are pressed up against the matrices for casting by means of a cam 151, Fig. 5, which actuates a pivoted lever 154 connected by a spring 156 with an arm 153 carried by the pot. By adjusting the spring 156 any desired pressure against the matrices may be obtained. Fig. 6 shows a mould and line galley for the collecting into one column of several lines produced simultaneously which are used following one another as in tabular work &c. The mould 160 is subdivided into five separate moulds. After a single casting operation the five lines are pushed through a knife-box and fall through channels on to the galley bottom 167. The hinged bottoms 168 of the channel pieces 166 are pushed aside by the tipping-device 169. Fig. 8 shows a modification in which the lines are ejected on to stepped plates 171 from which they are pushed in superposed order into a reservoir 175. The bottom 179 of the latter is lowered at each movement of the push-lever 174 by means of a double pawl 177 which co-operates with the rack 178. The lines are ready in proper order for printing. Fig. 14 shows means for stopping the descent of the pump plunger in the case of a loosely-set matrix line which is insufficiently justified. The shoulder 217 of a lever 215 normally rests beneath the arm 216 of the plunger, the lever being linked to a bell-crank locking-lever 211 which is engaged by a spring-controlled bell-crank 203, 205. If the spaces 201 are pushed up too high they fail to move the arm 203 when the line is moved forward for the casting operation and the pump plunger cannot descend. Movement of the arm 203 however allows the shoulder 217 to release the plunger. The rotation between the bell-cranks is such that when the arm 203 is swung to the left it cannot move back again until the return movement of the line carriage 219 depresses the arm 222 and releases the arm 205. The pawl 220 on the carriage operates the arm 222 only during its return journey. (2) A member 186, Figs. 11 and 13, which moves down over the " large front " plate " of the machine to engage the shoulders of the spaces and matrices, is secured to T-shaped ledges 187, 188 on a bottom piece 189 which slide in slots in the front and back respectively of the front plate. The matrices, in sliding towards the left over the mould slot 191, pass over the smooth surface of the front plate.