GB448265A - Improvements in and relating to typographical slug casting machines - Google Patents

Abstract

448,265. Type-bar-making machines. CLEMO, F. A., 9, Kingsway, London.-. (Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) Dec. 4, 1934, No. 34875. [Class 100 (iii)] Assembling matrices.-A hand-stick for holding a line of large matrices unprovided with projecting ears is adapted to be supported in a holder, which is detachably secured in the machine and has means for arresting the transporter or first elevator above its lower level. The hand-stick comprises upper and lower rails F<1>, F<2>, Figs. 9 and 11, end walls F<3>, F<4>, and a rear wall F<5>. A rib F<7> on the lower rail engages notches in the lower ends of the matrices X, and a sliding keeper-plate F<10> engages notches in their upper ends. The matrices are clamped endwise by a movable end-plate F<8>, operated by a lever F<9> and a setscrew f<7>. The stick is placed in a holder G, Fig. 7, which has adjusting-screws bearing on the top of the vice-cap E<1>, and is held in place by a screw clamping-member G<5> extending beneath the cap. The stick is located in the holder between end-members G<7>, G<8>, Fig. 10, and rests on a ledge g. The end-member G<7> is thick enough to cause the vice-jaw H<1> to operate the pump-stop lever. The matrices are presented to the mould at different casting levels depending on the sizes of their characters, and for this purpose the hand-stick is provided with a rotatable plate F", Fig. 11, having a series of edges spaced at different distances from the pivot point. The appropriate edge is brought to the bottom of the plate, and determines the level of the hand-stick by banking upon the ledge g of the. holder. The first elevator C, Fig. 7, is held against descent by a pair of plates G<11>, which are secured to the holder G, and also serve to align the handstick laterally with the holder during its insertion. The matrices X have their characters formed at the bottom of routing-notches, which are of greater than normal depth, and they co-operate with a special mould of correspondingly reduced depth. When the special mould moves forwards to permit of ejection of the slug, it may happen that a regular mould is at the same time opposite to the matrix line. A yielding movement of the hand-stick is therefore provided for, in order to allow for the greater depth of the regular mould. For this purpose, the hand-stick is supported against the pressure of the mould by a slide g', Fig. 10, mounted in the holder G, and carrying a series of banking-ribs g<6>, against which bear ribs f<25> on the rear wall of the stick. When a regular or deep mould is opposite to the line, the slide g<7> is moved, so that the ribs g<6> are clear of the ribs f<25>. The stick can then be pushed back by the mould against spring pressure. The slide g<7> is moved by a cam-and-ratchet mechanism operated by the mould-disc. An arm G<14>, Fig. 7, on the holder G carries a set-screw G<15>, by which the vice automatic stop is operated. Aligning matrices.-If the matrix line is not in proper alignment with the mouldslot, alignment is automatically effected by a pair of tapered projections l<1>, Fig. 7, arranged one at each end of the mould, and adapted to enter recesses in the end walls of the handstick.