Patent GB-290525-A (GB)
Title: Improvements in typographical line composing and distributing machines
IPC: B41B11/06
Filed: 1927-12-03
Abstract: 290,525. Hart, H., (Mergenthaler Linotype Co.). Dec. 3, 1927. Assembling and distributing matrices; magazines; keyboards. - Machines adapted to handle matrix founts, which differ as regards the size and number of their characters, are provided with two interchangeabla distributor-bars, two interchangeable magazineentrances, and two interchangeable assembler throat - sections, together with an adjustable keyboard mechanism adapted to release the different founts. (1) In the form described, the machine has an adjustable column of magazines, of which the upper magazine A<2>, Fig. 2, may contain a seventy-two character fount, and the lower magazines B may contain ninety-character founts. Two separately-pivoted magazine-entrances B<1>, A<3> are employed, which differ as to the number and spacing of their channels, and also two interchangeable distributor-bars A<4>, B<2>, Fig. 4. The escapements are operated by reeds E, Fig. 8, from a keyboard F, a series of connecting bails or levers being provided to establish connection between the keys and differently located sets of actuating-slides, according to the matrix fount in use. The bails are mounted in a box G supported by pairs of links G<1>, G<2>, which can be rocked by means of cam-faced levers G<4>, G<5>. These are engaged by a roller S' on a hand-lever S, by which the distributing and assembling devices are adjusted. (2) The distributor-bars A<4>, B<2> are arranged in inverted relation on a reversible support H, Fig. 4, which is rotatably mounted at its ends. The support H also carries extensions of one of the matrix-supporting-rails of the distributor lift-box. Interchange of the distributor-bars is effected from a rock-shaft I, Fig. 2, through links I<1>, J<1>, and an intermediate lever J<2> loosely mounted on a rock-shaft J. The link J<1> is pivoted to a lever J<3> carrying a gearsegment, which meshes with a gear on the barsupport H. The shaft I is operated from the hand-lever S, Fig. 8, through a link S<2> and an arm S<3>. (3) The magazine-entrance B<1> is pivoted on fixed brackets 0, Fig. 2, and is controlled by an adjustable link B<3> and a lever-arm B<4>, which is connected through a torsion spring to the shaft J. The entrance is raised into active position by the engagement of a notched plate J<9> on the link I<1> with an arm on the shaft J. The entrance A<3> is pivoted on a rock-shaft K, to which it is connected by a spring, and is operated by a gear-segment K<1>, which can be engaged by a gear-segment J<12> on the shaft J. When in inoperative position, both entrances are disconnected from their operating means, and are supported upon spring-controlled levers. (4) The assembler-entrance is provided with two rotatable and interchangeable throat-sections R, R<1>, Fig. 9, located at the top of the main seetion P. The partitions of the two throat-sections register at their lower ends with those of the main section, and are variously spaced at their upper ends to co-operate with the matrix columns of different founts. The throat-section, which are secured together in inverted relation, are rotated by means of a, gear and a rack R<10>, Fig. 8, which is operated from the shaft I. (5) Means are provided for preventing interchange of the distributor-bars, magazine-entrances, and assembler-throats, and adjustment of the keyboard without a simultaneous change of magazine. The magazine shift-frame A, Fig. 2, carries a depending member T, which slides in guides, and carries members T<3>, T<4>, which cooperate with a cross-piece I<3> on an arm I<2> of the shaft I, so as to lock the shaft while any magazine is in use. The shaft I is released by slightly raising or lowering the magazine column. Specification 186,214 is referred to.