Patent GB-427334-A (GB)
Title: Improvements in typographical composing and line casting machines
IPC: B41B11/00
Filed: 1933-10-21
Abstract: 427,334. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) Oct. 21, 1933, No. 29201. [Class 100 (iii)] Assembling matrices; magazines; moulds; driving-mechanism.-In a machine designed for handling special large or display matrices in addition to standard matrices, and adapted for hand as well as for machine composition, the large hand-composed matrices are delivered by the distributer to a storage tray, from which they are taken by hand. The first elevator is arrested at one or other of two different levels according as special or standard matrices are being handled, the lower level corresponding to the normal upper level of the machine, and the other level being still higher in order to present the special matrices to larger moulds. Means are provided for preventing the delivery to the elevator of either special or standard matrices, depending on the level of the elevator. (1) The large special matrices are contained in a composing-tray A<4>, Fig. 1, which rests on the magazine, and has small compartments a for the different characters and a long compartment a<1>, to which the matrices are returned after the casting. The special matrices Z, Fig. 9, are longer than the standard matrices X, Y, and have on their front edges an ear z<4>, which is higher than that z<2> on the rear edges, and is at the same distance from the top as are the lower ears of the standard matrices. The matrices Z have at the top a V-shaped notch and a single pair of teeth to carry them along the distributer-bar to the composing-tray. (2) The assembler-slide C<3>, Fig. 10, which is advanced by the matrices against spring pressure, is held in its advanced position by brakeshoes c<2>, which are carried on a lever c<3> and engage the upper and lower edges of the slide under spring action. When the assembler rises, the brake is released by levers c<5>, c' operated by a shoulder c<8> on the assembler. The lever c<5> acts on the brake lever c<3> through a pivoted interponent c<6>, which can be turned out of operative position, so that the brake can be retained in action during the hand composition of the special matrices. (3) The intermediate channel has a vertically adjustable handoperated stop D<3>, Fig. 14, which co-operates with the lower ears of the matrices and determines that either standard or special matrices, but not both, can pass into the first elevator. The elevator is arrested at the lower level for the receipt of standard matrices by the abutment of a screw f<2> in the elevator-head F against a slide o<2> supported on the vice cap. The slide o<2> is maintained in its left-hand position against spring pressure by the lower end of the stop D<3>. When the stop is raised, so as to permit the passage of special matrices only, the slide o<2> is drawn to the right, and a pin o thereon is brought beneath the screw f<2>, so as to arrest the elevator at the higher level. The vice automatic stop-rod is operated in either position of the slide by a second screw f<3 >in the elevator-head, which encounters either a plate o<1> or a pin o<3> projecting from the plate. (4) To ensure that the proper mould for either the special or the standard matrices is selected, each mould is provided with a banking-block G<3> of a particular shape, which co-operates with a depending finger L<3> on a slide L, which is adjusted by hand on the elevator in accordance with the position of the slide o<2>. If the wrong mould is positioned, its banking-block arrests the elevator above the casting level and the machine is stopped by the vice automatic stop. If the slide L is not correctly adjusted by the operator in relation to the slide o<2>, an abutment o<5> on the slide o<2> co-operates with a U-shaped member L<4> on the slide L to arrest the descent of the elevator and stop the machine. (5) The magazine is pivotally mounted on the machine and can be raised, to disengage it from the escapements and to facilitate its removal, by means of a pair of hand-levers A<6>, A<6>, Fig. 1, as described in Specification 260,459, [Class 100 (iii)]. When the magazine is raised, the matrices are retained therein by an endwise movable locking-bar having depending teeth, which are adapted to move in front of the leading matrices. The teeth are bevelled so as to push the matrices back slightly. The bar is shifted by cams on the hand-levers that raise the magazine, and is held in locking position by a spring-pressed pawl when the magazine is raised. (6) The matrices in the magazine A, Fig. 29, may be transferred to a storage magazine A<10> placed in alignment with it, and a fresh set of matrices transferred to the magazine A from a second storage magazine A<11>. The lower storage magazine rests on supporting surfaces A<12> provided on the hand-levers, and the upper one rests at its front end on lugs a<18> on the magazine frame, and is supported at its rear end by dogs a<12> carried by brackets A<13> on the distributer frame. The storage magazines have matrix locks at their lower ends. Distributing matrices.-The second-elevator lever J<2>, Fig. 20, is operated by a link from a cam-operated lever. The shifter-bar J<8> has, in addition to a finger j<2> for transferring standard matrices to the distributer-bar, a second finger j<3> for transferring special matrices to the composing-tray A<4>. The lever J<2> is arrested, when necessary, with its carrier-bar J<1> in register with the finger j<3> by a nose j', which can be moved into and out of operative position by means of a handle J<2>. The special matrices are delivered through a channel which is twisted, so as to turn the matrices into the inclined position which they occupy in the composing-tray. Ejecting type-bars; galley-mechanism.-The shoot K<1>, Fig. 4, which conducts the ejected type-bars to the galley, has an adjustable right-hand wall k<3> carried by the right-hand knife frame K<2>, which is adjustable in the manner described in Specification 328,517, [Class 100 (iii)]. The pusher k<5>, which advances the slugs in the galley, is carried by a lever K<4> operated by a stud on the first elevator, the backward stroke of the pusher being regulated by a finger k<8> on the adjustable wall k<3>, to accommodate slugs of different thickness.