Patent GB-383926-A (GB)
Title: Improvements in slug ejecting mechanism of typographical slug casting machines
IPC: B41B11/72
Filed: 1932-07-15
Abstract: 383,926. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) July 15, 1932, No. 20059. [Class 100 (iii).] Ejecting type-bars.-An ejector is adjustable in thickness as well as width so as to be capable of co-operating with slugs of different thickness and width. The ejector preferably consists of a main section and one or more supplementary sections, and selective means for actuating the main section alone or with one or more of the supplementary sections, the selective means being operated manually, or automatically under control of the moulds. The ejector shown in Figs. 2 and 3 consists of main and supplementary sections, the main section being used for thin slugs, and both sections being used for thick slugs. The main section consists, as described in Specification 16622/10, [Class 100 (iii), Type-making &c.], of blades C<1> connected to slides C<2> any number of which can be coupled to the ejector-slide B by means of a vertically adjustable bar C3 mounted on a rod C<4> which is carried by a slide C<5> provided with an adjusting lever. The supplementary section comprises blades D<1> guided by grooves d<1>, d in the ejector-slide B and a block A<4> secured to the mould-slide A<3>, the part of the ejector-slide that contains the grooves being cut back at B<3> to clear the block. The blades D<1> are operated by a bar D<3> which is mounted in the bar C<3> and engages an eccentric D<4> mounted on the rod C<4>, engagement being maintained by a spring. The bar C<3> is formed with notches c<4> registering with the blades D<1>, and the bar D<3> is formed with notches d<4> which can be moved into or out of register with the blades D<1> by turning the eccentric. To adjust the ejector for thin or thick slugs, the bar C<3> is so adjusted that the notches c<4> therein are in or out of register with the blades D<1>, and on operation of the ejector-slide, the blades C<1> only or both sets of blades are advanced respectively. When ejecting thick slugs 2, the blades C<1>, D<1> cooperate with the body 1 and ribs 3 thereof respectively. The blades D<1> are returned by co-operation of lugs d<5> thereon with lugs c<5> on the slides C<2>. Adjustment of the slide C<5> adjusts the width of the ejector by determining the number of blades to be coupled to the ejector-slide. The ejector shown in Fig. 8 comprises the above-described main and supplementary sections, and another supplementary section consisting of blades El arranged in contact with the blades D<1> and selectively operated by a notched bar E<3> which is mounted in blocks E<2> on the bar D3 and engages an adjusting eccentric E<4>. By adjusting the eccentrics D<4>, E4, the blades C<1> only, or the blades C<1>, D<1>, or C<1>, D<1>, E<1> can be coupled to the ejector-slide. The eccentric E<4> is formed with a lug E<9> which co-operates with a lug on the eccentric D<4> to prevent the blades El from being used without the blades D<1>. The ejector described with reference to Figs. 2 and 3 may be controlled automatically by the mould wheel A, mechanism for this purpose being shown in Figs. 15 and 16. A rock shaft J<3> mounted in the slide C<5> carries a splined sleeve J<5> which is connected to the bar C<3> and is provided with an eccentric D4 engaging the bar D<3>. A pinion J7 on the shaft engages racks K, K<1> having notches k<1>, k<2> for engaging a cam-plate L carried by pins L<2> on a block L<1> mounted in a support M which moves vertically with the shaft. A shaft L<4> passing through the block is mounted in lugs L<5> on the mould slide A<3> and carries a splined cam L<3> engaging the camplate, engagement being maintained by springs l<1>. When a mould A<1> for casting a thick slug moves into ejecting position, a cam Q thereon rocks a spring-urged lever R connected to the shaft L<4>, and the cam L<3> moves the cam-plate L into register with the rack K<1>. On advance of the mould slide, the cam-plate lifts the rack K<1>, the shaft J<3> is rocked, and the bar D<3> is raised to couple the supplementary and main blades C<1>, D<1>. When a mould for casting a thin slug moves into ejecting position, the camplate co-operates with the rack K, and the bar D<3> is depressed to disconnect the blades D<1> from the blades C<1>.