Patent GB-189808228-A (GB)
Title: Improvements in and connected with Linotype Machines.
Inventor: LOCK WILLIAM HENRY
Filed: 1899-04-06
Granted: 1899-04-06
Abstract: 8228. Lock, W. H., Chambers, R., Dolby, F. C., Elliott, R. C., Heap, W., Holliwell, C., Lewis, W. J., Pearce, H., and Whittaker, M. H. April 6. Linotype machines.-Relates to improvements in linotype machines, applicable more particularly to the Mergenthaler machine, Specification No. 14,582, A.D. 1890. The improvements are as follows:- (1) The star-wheel of the assembling-mechanism is relieved to a large extent from the work of pushing back the horizontally-sliding member of the pair of shifter arms which receive the composed line of matrices and space-bars from the assembly block. This is effected by means of an adjustable stop which engages the aforesaid arm during its return motion under the tension of its controlling-spring at a distance from the other arm a little less than the minimum length of a line prior to justification. (2) The top half of the justification-block, or piece that bears against the feet of the space-bars during justification, is rendered easily detachable from the bottom half by the use of a bolt the head of which engages in a transverse T-shaped groove in the top half. (3) The vice screw p<3>, Fig. 8, which is turned alternately in opposite directions to clamp the composed line between the jaws of the vice and to release it after the linotype has been cast, is provided with a disc p<70> grooved at its periphery. A loose collar p<67> operated by a link connected to the lugs p<68> turns the screw by means of a catch p<74> having its nose kept in engagement with one of the grooves in the disc p<70> by the spring p<75>. By releasing the catch the screw p' can be turned by the handle p<76> so as to vary the distance apart of the vice jaws when clamping the composed line. (4) To ensure that the shoulders z', Fig. 11, of the leading space-bar Z will enter the sector notches K<20> which serve to lift it from the magazine K, the rod k<12> which operates the sector carries an adjustable finger k<23>, which slightly lifts the leading space-bar at the right moment, so that its shoulders are free to fall into the notches k<20>. (5) The spacebar grabber U, Fig. 11, which returns the spacebars to the magazine K, has a cushioning-device consisting of the bar u<1> and springs u<4> interposed between it and the actuating-lever s<7>. (6) The lift which raises the matrices within reach of the distributing-screws is of a form differing from those described in Specifications No. 26,648, A.D. 1896, and No. 9569, A.D. 1897. The leading matrix, which has reached the stops at the end of the rails of the distribution box, is lifted up by the snail x<50>, Fig. 16, so as to be free to be pushed up the inclines leading to the distributing-screws by the pusher described in the latter of the two Specifications quoted above. The snail x<50> is driven through toothed gearing from one of the distributing-screws, and a device is described for throwing this gearing out of action when desired, and also for ensuring the proper angular relation between the positions of the snail and the distributing-screws when they are again thrown into gear.