Patent GB-768411-A (GB)
Title: Control mechanism for typographical composing machines
IPC: B41B11/00
Filed: 1955-04-01
Abstract: 768,411. Type-bar-making machines. TELETYPESETTER CORPORATION. April 1, 1955 [April 19, 1954], No. 9561/55. Class 100(3) Mechanism for controlling the operation of a typographical composing machine comprises a plurality of signal-controlled permutation code bars which are variably set or positioned in response to the sensing of successive recorded code signals, a series of matrix selector bars which are individually selectable in dependence on the setting of the signal-controlled code bars, and two additional code bars which are so variably set or positioned by the actuation of additional selector bars under the control of the signal-controlled code bars in response to the sensing of corresponding recorded code signals as to enable matrices to be subsequently selected under the control of the signal-controlled code bars from any one of three different groups of matrices, each of which groups of matrices may be made up of matrices bearing the individual characters of a different typesetting alphabet or case group. The matrix selector bars 15 are moved towards and away from each other under the control of cams on a rod 16, and are individually selectable under the control of the signal-controlled code bars 14. Three additional selector bars 21, 22, 23 are provided, and also two additional code bars 28, 29. When, as the result of a particular signal in the control tape, the selector bar 23 is selected, and therefore moved forward by a push rod 18, it initiates the following two series of actions: (1) An arm 32 pivoted at 33 is moved clockwise, whereupon a stud 38 thereof moves a trigger member 39 pivoted at 30 counter-clockwise. The trigger member 39 thereupon releases a multiarmed lever 42, which is thereupon moved counter-clockwise by a spring 45, whereupon one arm 44 thereof engages a lug 47 on the code bar 29 to move the latter to the right. (2) Through an arm 35, a lever 34 pivoted at 30 is moved clockwise, whereupon a lever 51 pivoted at 52 is moved counter-clockwise against the action of the spring 79. An arm 53 of the lever 51 thereupon moves a trigger member 55 pivoted at 56 clockwise, so as to release a multiarmed lever 62, which is thereupon moved clockwise by a spring 65, 'an arm 64 thereof moving the code bar 28 tn the left. When the selector bar 22 is selected, it initiates the following two actions:- (1) Through an arm 43 thereof, the multi-armed lever 42 is moved clockwise, whereupon through a spring 69, an arm 68 moves the code bar 29 to the left. (2) The lever 34 is moved clockwise as before, thereupon moving the code bar 28 to the left. When the bar 21 is selected, it initiates the following two actions:- (1) Through an arm 78, a lever 77 pivoted at 56 is moved counter-clockwise. A lever 74 pivoted at 52 is thereupon moved against a spring 79, whereupon the trigger member 39 is moved counter-clockwise to release the lever 42, which thereupon moves counter-clockwise to move the code bar 29 to the right. (2) Through an arm 63 thereof, the lever 62 is moved counter-clockwise, whereupon an arm 66, under the action of a spring 67, moves the code bar 28 to the right. In all cases, when the levers 42, 62 are moved clockwise and counter-clockwise respectively, they are latched in their new positions by the trigger members 39, 55 respectively. The bars 28, 29 can thus be set in any one of three positions, in each of which position, a group of matrices bearing individual characters of one case can be subsequently selected.