Patent GB-190425392-A (GB)
Title: Improvements in Linotype Machines.
Inventor: LOCK WILLIAM HENRY
Filed: 1904-11-22
Granted: 1906-01-22
Abstract: 25,392. Lock, W. H., and Sutcliffe, F. W. Nov. 22. Linotype machines.-Relates to means for casting linotypes of different lengths from the same composed line of matrices and space bars, and particularly adapted for use in the Mergenthaler linotype machine described in Specification No. 14,582, A.D. 1890. A filling- piece having an operative thickness equal to the desired difference in the two lengths of linotypes is used in the vice. The line is justified for the shorter length, and, subsequently, the filling-piece is removed and the line justified for the longer length, the line in the first place being composed tightly to provide the requisite reserve of justifying capacity. Mechanism is provided for alternately inserting and withdrawing the filling-piece. The mould carrier may be fitted with a single mould of the longer length, or, preferably, with two moulds, one for each length. Moulds adjustable for length, such as those described in Specifications No. 6336, A.D. 1895, and No. 8302, A.D. 1896, may be used. Fig. 2 shows an arrangement in which the mould carrier 3 is provided with a shorter-length mould and a longer-length mould diametrically opposite. The filling-piece is in the form of a dovetail slide 9 fitted in the abutment 6 of the movable vice jaw 5 and provided with two operative surfaces 20. The slide 9 is, normally, urged rearwards by connection with a spring-supported block 13 sliding in a bore 14, and, in this position, the rear surface 20 clears the jaw 5, and the front surface 20 enters a cavity 21 in the jaw. When the mould carrier is moved forwards, either a nose 17 on the slide 9 is engaged by the carrier and the slide 9 is pushed into operative position, or the nose 17 slips into a hole 18 in the carrier and the slide 9 remains inoperative. Fig. 5 shows an arrangement in which the mould carrier is provided with one mould of the longer length. The filling-piece 37 is pivoted on an arm 38 fast on a shaft 39 turning in brackets on the vice frame 8, and is held against the frame 8 by a spring 41. Actuation is effected from the cam shaft 31, through a second arm 42 on the shaft 39, a connecting-rod 43, full gear 33, and mutilated gear 32. The gear 33 is locked by means of a spring detent and diametrically-opposite cavities 36 as soon as the gear 32 leaves the gear 33. The nose of the filling-piece 37 is wedgeshaped and the co-operating corner of the jaw 5 is rounded off, to facilitate the entrance of the piece 37 between the jaw 5 and its abutment. Means is provided for rendering the filling-piece inoperative, and comprises a fork-and-stud connection between the parts 43, 42, and a pivoted hook 46 and a stud 48 on the part 43, for hanging up the part 43 free from the part 42. Fig. 10 shows an arrangement similar to that shown in Fig. 5, but differing in that the filling-piece 51 is bent through a right-angle, and has an arcual motion instead of a vertical motion, and is fast on the shaft 39. dispensing with the arm 38 and the spring 41. Repeating-mechanism similar to that described in Specification No. 617, A.D. 1899, is provided for preventing distribution until after the second cast. Fig. 13 shows a single-mould arrangement in which the filling-piece 80, and a repeating- mechanism resembling that described in Specication No. 6692, A.D. 1900, are actuated from the first elevator 22. The filling-piece 80 is on a slide 81 guided by studs 82, 83. Loose on the stud 83 is a cam 86 with an attached ratchet-wheel 91 actuated by means of a pawl on a lever 92 engaged by an arm on the elevator 22. The cam 86 is engaged by a roller on the slide 81 and by an arm 96 of the repeating- mechanism, the parts 81, 96 being connected by a spring. The arm 96 is on a shaft 95 connected with a lever 103 for locking the shaft 61 of the line-grabber lever. When using a single mould, an indentation will be formed at the end of the shorter linotype ; this may be avoided by using a liner movable with the vice jaw, as described in Specification No. 24,870, A.D. 1894.