Improvements in Displayed Advertisement Linotypes and in Machines for Making them and Repeat Linotypes.

摘要

6692. Lock, W. H., Holliwell, C., and Elliott, R. C. April 10. Linotype machines.-Relates to the production of improved linotypes for displayed advertise. "ments," and also to the production of " repeat " linotypes," in the Mergenthaler linotype machine, described in Specification No. 14,582, A.D. 1890. The improved displayed-advertisement linotypes are shown in Figs. 4, 5, and 6. The large overhanging capitals are produced on one linotype, which registers exactly with another bearing the small type, as shown in Fig. 6. The alignment of the large capitals with the other type is made on the bottom line, instead of at the top as heretofore. The two linotypes are cast from a single assembled line of matrices. Fig. 3 shows the matrices for such a line, the matrix-cavities 2 for the large capitals being engraved on an alignment-line below that of the small cavities 1. The large-capital matrices may conveniently be assembled from a sorts-box, the others being composed from the magazine. Fig. 1 shows in section the elevator-head N1 containing a line of assembled matrices Y. The mould-block o13 has been brought against the rear face of the assembled line, and a linotype C has been cast in the mould-slot o from the largecapital matrix-cavities 2. Fcr this purpose the rear aligning-lugs 4 of the matrices are engaged by the aligning-shoulder 9, instead of by the normal aligning-shoulder 8, the elevator-head N' not having been allowed to descend as far as usual. When the elevator-head rises after casting the first linotype, the " line-grabber is prevented from removing the assembled line for distribution, and the same line therefore returns to the casting position, but is on this occasion lowered to the customary position, so that a second linotype is cast from the small-type cavities. The stop 13, employed to prevent the full descent of the elevator-head upon the vice frame in the first instance, is shown in Fig. 8. It is carried by a rod 14, which can be pushed in by the operator against spring control, and is then held by a latch engaging with a notch in its further (or left-hand) end. When thus shifted the stop 13 is vertically above the end of the controlling-rod of the safety device of the casting mechanism, so that, while limiting the descent of the elevator-head N', the stop ensures the depression of the rod. When the elevator-head rises, the aforesaid latch is released, and the stop 13 is rendered ineffective, so that the full descent of the elevator-head takes place on the second occasion. Fig. 14 is a plan view, showing the mechanism employed to prevent the action of the line-grabber after casting the first linotype, and also for the casting of "repeat linotypes." In this Figure, A represents part of the machine frame, a14 the starting and stopping handle, and a12 the starting-bar of the machine, which is pushed inwards to disengage the clutch, and conversely. An abutment 25 and a pivoted lever 26 are both carried by the metal-pot stand, the set-screw 39 being normally held in contact with the abutment 25 by a strong coiled spring 37. When the metal pot advances towards the mould, the lever 26 pushes forward a rod having a projecting arm 31, so as to bring the nose-piece 34 into the path of an arm 35 carried by the shaft s2 of the line-grabber lever. The arm 31 engages between pins 40, 41 on the bar a12, which therefore moves forward with it. At the end of the bar a12 is a notch 46 adapted to be engaged by a knife-edge 45 carried by a lever 42, which is pivoted at 43 so as to move in a vertical plane. On the left-hand end of the lever 42 rests a vertical rod 51, which, like the controlling-rod mentioned above, extends through the vice frame and terminates slightly above its upper surface. In the normal working of the machine, the rod 51 is depressed by the elevator-bead every time a line of matrices is brought to the casting position, but, when the aforesaid stop 13 is in operative position, the elevator-head does not descend sufficiently to depress the rod 51, and the knife-edge then prevents the return of the bar a12 after the casting operation. The nose-piece 34 stops the action of the line-grabber, and the same matrices descend again, but on this occasion the rod 51 is depressed, and the bar a12 released. Only one " repeat " linotype is thus produced, and it is cast from different matrix cavities to the first. If it is desired to cast a number of identical repeatlinotypes, the bar 51, on its upper portion, is removed, the bar a12 being then permanently locked by the knife-edge 45. To cast repeat-linotypes from the bottom row of matrix cavities, the trip which releases the latch of the rod 14, Fig. 8, is removed or otherwise rendered ineffective. When repeat-linotypes are to be cast at several alignments on the same assembled line it is necessary to employ several rods 51 of different lengths. Reference is made to Specifications No. 10,257, A.D. 1894, No. 18,886, A.D. 1895, and No. 617, A.D. 1899.