Patent GB-381839-A (GB)
Title: Improvements in typographical composing and distributing machines
IPC: B41B11/06
Filed: 1932-03-03
Abstract: 381,839. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co. ; 29, Ryerson Street, Brooklyn, New York, U.S.A.) March 3, 1932, No. 6422. [Class 100 (iii).] Distributing matrices; magazines.-Relates to machines equipped with two interchangeable magazine-entrances and two interchangeable distributer-bars, as described in Specification 302,879, [Class 100 (iii), Type making &c.], for handling matrix founts which differ in the size- and number of their characters. (1) The interchange of the distributer-bars is controlled by the rotary movement of the magazine-entrances. The entrances B, C, Fig. 17, are, as heretofore, arranged in inverted relation to each other on a rotatable holder D, and their interchange is effected in known manner when the entrance supporting-frame E is rocked downwards by means of a hand-lever G, Fig. 9. The distributer-bars B<1>, C<1> are pivotally mounted on the ends of the upper conveying-screws, and are operated by a sliding rod J. The rod J is operated from the rotatable entrance-holder through a pair of levers K, K<1>, which are engaged in succession by fingers D<4>, D<5> on the entrance-holder. The lever K<1> is pivoted at its upper end, and is connected to the rod J at an intermediate point, and the two-armed lever K is connected at its upper end to the rod J, so that the two levers move the rod in opposite directions. To show which distributerbar and entrance are in use, a distinguishing mark is placed on the end of the rod J, and is covered, in one position of the rod, by a hinged flap bearing a second mark. When the rod is moved forwards, the flap is raised and exposes the mark on the end of the rod. (2) Means are provided for preventing the operation of the distributer if the entrance and distributer-bar selected do not correspond with the magazine in use. When the entrance supporting-frame E is lowered, it acts through the entrance of the auxiliary magazines to release a dog, which thereupon disengages the driving-clutch of the distributer. The magazine base-frames carry grooved cam-plates T, Fig. 17, which co-operate with projections T<2>, T<3> on the entrance-holder. If the wrong entrance is positioned, its projection cannot enter the groove in the opposed cam-plate, so that the supporting-frame E cannot be fully raised, and the distributer cannot be re-started. (3) The usual hinged sections b<1>, c<1> of the entrances, which yield, so as to prevent damage in the event of a matrix becoming lodged between the magazine and the entrance during the shifting of the magazines, are held against movement by spring latches B<3>, C<3> during the rotation of the entrances, so as to avoid noise and vibration and possible interference with the distributer-screws. The latch of the selected entrance is withdrawn by a fixed stop, as the entrance moves into position. (4) The distributer-bar in use is automatically locked against displacement. The bar is moved into position against a stop-pin, and is then engaged by a forked arm, which embraces the bar, and is operated by the frame E as it moves into the upper position. (5) Means are provided for preventing the rocking down of the entrance supporting-frame E if any matrices remain on the distributer-bar. This is effected by means of the known feeler-plate M, Fig. 9, which is movable across the path traversed by the matrices, and is connected, as heretofore, by a lever M<2> to the sliding bar that locks the magazine column. The link G<1>, that connects the frame E to its hand-lever G, carries a member W, which rests in the path of the lever M<2>, so that the frame E cannot be rocked until the distributer is clear of matrices. (6) To permit of lowering of the frame E, to give access to the magazines without unlocking of the entrances, the frame is provided, as described in Specification 302,879, with a yoke-member E<6> for arresting it in an intermediate position. The yoke-member may support a curved tray E<7> to catch falling matrices, and is held in its upper position by a spring. When the yokemember is depressed, a stud e<4> thereon engages in a pocket O<4> to arrest the frame E. A curved track-plate E<11> holds the yoke depressed during the downward movement of the frame. Escapements.-The escapements of all the magazines are actuated by a single set of levers P<1>, Fig. 27, which are operated from the keyboard through either of two sets of reeds P<4>, P<5>, according to the magazine in use, the reeds being connected to the keyboard through a single set of levers P<6>,which are adjustable, as described in Specification 338,660, [Class 100 (iii), Type making &c.]. According to the invention, the frame carrying the levers P<6> is operated from the magazine shift-frame through a link P<9> and a lever P<13>. Assembling matrices.-The assembler-entrance comprises a vertical main section V<1>, Fig. 30, and a pair of throat-sections V<2>, V<3>, which are inverted with relation to each other, and are rotatably mounted, as described in Specification 290,525, [Class 100 (iii), Type making &c.]. The axis of rotation of the throat-sections is located rearward of the line of intersection between the central vertical plane of the main section V<1> and the central plane of the magazine in use, so that the throat-section in use is uppermost. Visibility and access to the matrices are thereby secured, the entrance being closed by a hinged transparent plate v. Each throatsection comprises a slightly curved baseplate and a series of partitions secured thereto at one edge. The throat-sections are rocked by means of a crank arm, the movement of which is limited by stop-screws, against either of which the arm is locked by a spring latch. Markings on the upper and lower faces of the arm designate the two throat-sections.