Patent GB-356197-A (GB)
Title: Improvements in composing and line casting machines
IPC: B41B11/00
Filed: 1930-06-02
Abstract: 356,197. Typebar - making machines. TELETYPE CORPORATION, 1410, Wrightwood Avenue, Chicago, U.S.A. June 2, 1930, No. 17070. Convention date, June 5, 1929. [Class 100 (iii).] Driving-mechanism; assembling and justifying matrices.-Controlling-mechanism for a type-bar-making machine, which is particularly adapted for operation from a distant station, is provided with means for measuring the length of the assembled line of matrices and the thickness of the justifying-members, so as to determine the possible justification of which the line is capable, the machine being stopped if the line is not within the justification range. Selector-unit. The key-rods of the machine are operated by a selector-unit comprising six sliding permutation-bars 7, Fig. 6, notched on both edges and co-operating with two series of selector-rods 10, which are arranged on opposite sides of the bars and are pressed against them by spring fingers 12. The rods 10 engage notches in control-levers 20, which can both slide and rock on a supporting-bar 1. The rear ends of the levers 20 engage under lugs on the key-rods 31 of the machine, and their notched front ends are moved by the rods 10 into and out of the path of an actuating-bar 25. The bars 7 are shifted by a series of selecting-magnets against the pressure of springs, and each rearrangement of the bars causes one lever 20 to be brought into the path of the actuating-bar 25. The bars 7 may be held in shifted position by latches, which are subsequently released. Control devices. The selecting-magnets 37, Fig. 3, may be controlled directly by telegraph signals from a distant station, but are preferably operated by a local motor-driven transmitter under the control of a perforated tape, which can be prepared by a keyboard perforator or by a receiving reperforator, which is responsive to signals from the distant station. The tape 46 is interpreted by spring-pressed feeler-levers 47, which make the circuits of the selecting-magnets when released by a universal bar 49. The bar 49, which also effects the feed of the tape, is operated by a cain 53 on a shaft 54, which is driven from a motor 64 through a clutch 65 controlled by a stop-start magnet 69. The circuit of the magnet 38, which operates the actuating-bar 25, is controlled by a commutatordisc 61 and a rotating brush 62, so that the magnet is operated after the permutation-bars have been rearranged. When the tape is fed directly from a perforator, it passes beneath a rod 79, which is lifted and breaks the circuit of the magnet 69, so as to stop the machine, if the perforator fails to keep pace with the translating-mechanism. To provide for upper and lower-case characters, the selector-unit is provided with an additional permutation-bar, which is not operated by a selecting- magnet, but is under the control of the other bars, and responds to special signals in the tape. Line signal. At the end of the tape perforations representing a line of matrices, a line or elevator signal occurs in the tape, which acts through one of the levers 20 to close a contact 87, Fig. 3. A circuit is thereby made through the coil of a relay 91, which completes the circuit of a solenoid magnet 103, by which the assembler-elevator of the machine israised. The relay 91 also breaks the circuit of the stop-start magnet 69, so as to stop the tape translating-mechanism, a signal lamp 118 being simultaneously lighted. The translating-mechanism is re-started when the assembler returns to initial position. The circuit of the magnet 69 is also broken, and the lamp 118 lighted, by the usual distributer stop-mechanism, should a matrix become jammed in the distributer. Line and justifying-space measuring-mechanism. The assembler-slide 123, Fig. 11, has a depending lug 124, which is adapted to engage a collar 125 on a rod 126, which can slide lengthwise and also rotate. The rod is rotated by connections from the spaceband delivery-mechanism, and carries a spirallystepped cam 129. The cam co-operates with a lever 148, which acts through a second lever 153 to release or lock the assembler 78, according as the line is justifiable or not. If the assembler is locked, the circuit of the magnet 69 remains broken, and the lamp 118 lighted, so as to warn the operator to adjust or reset the line. A second cam on the rod 126 acts to close the circuit of a second signal lamp, when the line falls short of the minimum casting length by a definite amount. Assembling two-character matrices. The retractable shelf in the assembler, which is used for supporting two-character matrices at the higher level, is operated automatically by a doublewound solenoid controlled by special signals in the tape.