Patent GB-190315045-A (GB)
Title: Improvements in Linotype Machines.
Inventor: LOCK WILLIAM HENRY
Filed: 1903-07-07
Granted: 1904-02-16
Abstract: 15,045. Lock, W. H., [Mergenthaler Linotype Co.]. July 7. Linotype machines.-The matrices Y and space bars Z, Fig. 7, are similar to those used in the Mergenthaler machine described in Specification No. 14,582, A.D. 1890, as are also the magazine B and the assembly mechanism comprising the guides E, endless band F, assembly box G, keyboard D and escapement mechanism &c. The line is assembled against a movable abutment I sliding horizontally on a second slide, which carries the assembled line horizontally to the left, Fig. 1, into the vice J. The abutment I is movable vertically on its slide, so that it may be raised and return clear of the line to normal position. When the line is moved to the left, the vice frame J is in its lowest position, and the line is placed in it between a normally fixed jaw and a sliding jaw, which latter is retracted for the insertion and removal of the line, and is projected to enclose the matrices between it and the fixed jaw during the justifying and casting operations. The fixed jaw is movable by a screw j<8> to loosen the line of matrices after the cast and permit the wedges of the space bars Z to drop to normal position, or to be pushed down by a blade y, as the line is lifted. The vice frame J is formed with vertical guiding-parts j<12> sliding in guidegrooves in a frame K pivoted at k<1> by means of its arms k. The matrices and space bars are supported by their ears in the vice frame, and a movable blade is provided for supporting them at either of two levels, when the matrices each have two casting-cavities and are assembled at two levels. as described in Specification No. 17,962, A.D. 1898. The frame K is rocked on its pivot k to move the line of matrices to and from the mould N by links connected to angle-levers operated by a cam on the main shaft L<1>. The vice frame is moved vertically on the frame K to move the matrices, first to the casting-point at the level of the mould and then up to the level of a lifter on to which they are delivered for lifting to the distributing-mechanism, by a lever j<13> operated by a cam on the shaft L'. The wedges of the space bars Z are pushed up to justify the line by a plate M sliding on the vice frame and moved upwards in a series of strokes by a spring m under the action of a toothed lever operated by a cam. The mould N is of the usual slotted pattern and is removably secured in a supporting-plate n<2> mounted to slide vertically in a frame n pivoted at the same point k as the frame K. The frame n is rocked to carry the mould to and from the metal pot L simultaneously with the rocking movement of the frame K but to a less extent, so that the linotype is detached from the mouth of the metal pot, and the matrices are moved free of the linotype. The mould N is moved up to bring the linotype therein to the level of an injector O by which it is ejected and pushed through a pair of trim. ming-knives q<20>, q<21>, and placed in the galley k<10>. The galley is formed on or attached to the top of the frame n. The injector O is on a slide o operated by a cam &c. As the linotype enters the galley it is raised on to its foot by an arm k<12> rocked by a projection on the slide o. The foot of the linotype is trimmed as the mould ascends, by a knife P. After the cast, the line of matrices and space bars is carried up to the level of a lifter T, on to which they are pushed endways from the vice frame J by a finger on a horizontal slide u operated by a rack and a pinion u<2> on a shaft u<3> formed with a screw thread engaged by a nut on a vertical slide moved by a cam &c. When the lifter rises, it lifts the matrices away from the space bars, which are'left suspended in the spacebar magazine Q, where they descend by gravity for composing directly in the assembly box G. The elevator T slides on an inclined guide t', and carries the matrices up to the distributing-mechanism, which may consist of a permutation bar R along which the matrices are carried by screws S as in the Mergenthaler machine. The matrices are delivered to the screws by a spring-pressed slide r. As the elevator rises, a finger r<3> on it operates to retract the slide r so that the matrix line is placed in front of the slide. The elevator is operated by means of a spiral-toothed wheel moving with the elevator and engaging spiral teeth on the underside of the guide t<2>. The spiral-toothed wheel is splined to a rotating shaft parallel to the guide t<2> and is confined between lugs on the elevator. The shaft is driven alternately in opposite directions by a segmental rack on an arm rocked by a cam on the shaft L<1>. The cam shaft L<1> is driven through a complete revolution at each operation of a starting-bar y<6>, Fig. 7, which engages a clutch of usual form. The metal pot L is fixed, and the metal is delivered to the mould by the plunger operated by a rod l<3> connected to a lever l<4> actuated by a spring l<6> and a cam l<5>.