Patent GB-189722208-A (GB)
Title: Machine for Preparing the Perforated Record Strips of Type Forming Machines.
Inventor: BOULT ALFRED JULIUS
Filed: 1897-09-28
Granted: 1898-05-14
Abstract: 22,208. Boult, A. J., [Lanston Monotype Machine Co.]. Sept. 28. Monotype machines; type, setting; type - writers and like machines.-Relates to apparatus for punching the record strips used to control machines for forming justified lines of separate types, such as the Lanston monotype machine. Fig. 6 shows a sectional elevation. The keys are arranged approximately in the form of a square in plan view. The keys of the longitudinal rows operate levers 3 pivoted at 4, and the keys of each transverse row a lever frame 7, which is engaged by pins 8 on the key stems. The lever frames 7 are connected to levers parallel to, and alternating with, the levers 3. All these levers are connected by rods 10 to levers 11 which operate the punches 13. The punches work in guides 14, 15, and into a die-plate on a fixed cylinder 25 over which the strip 17 passes. The strip passes from a spool 18 on to a winding-spool 19, and is fed by means of toothed discs at the ends of the cylinder 25. The teeth of these discs engage rows of perforations near the edges of the strip. The shaft 26 of the discs is driven by a spring drum, and its movement is controlled by an escapement, so as to feed the strip one step after each operation of a key. The spring drum is re-wound after each line by a cord connected to a drum operated by a hand-lever at one side of the machine, which lever is operated after each line to return various parts of the machine to normal or starting position. The escapement is actuated from a lever frame 61 operated by the levers 11. Indicators are provided for showing (1) the amount of space to complete a line, (2) the number of space types in the line, and (3) the amount of additional space to be added to each space type to fill out or justify the line. The characters represented by each longitudinal row of keys require the same, space, and the lever 11 operated by each longitudinal lever 3 is connected by a rod 102 to a lever 103 which moves a stop-pin 104. These stop-pins limit the movement of an oscillating feed-arm by which the amount of movement of an indicator shaft is controlled. The feed-arm is coupled to, and moves with, a ratchet-wheel on the indicator shaft during the forward swing of the arm ; during its return movement the arm swings free of the ratchet-wheel. The indicator shaft is driven by a spring drum, which is re-wound by the operation of the lever for returning the parts to normal position. Means are provided for locking the shaft and preventing overthrow &c. after each feed movement. The indicator shaft operates a rack having a pointer moving over a scale showing the space in the line, and also an index arm moving over a justification scale 119. The justification scale and index arm are specially marked to indicate the amount of space to be added to each space type. A justification key or keys is then depressed to perforate the strip for controlling the justification mechanism in the casting-machine. The justification keys are arranged in a longitudinal row at one side of the keyboard. The number of spaces is indicated by numbers on a rack which show through an opening in the framing. The rack is moved each time a space type key is depressed. An alarm bell is sounded when the line is approaching completion. When the hand-lever for returning parts to position is operated after the formation of each line, a galley perforation is made by which the galley is fed in the casting-machine. The galley punch is operated by a lever connected to an oscillating arm operated by a pawl on an arm on the shaft of the hand-lever. The details and operation of the indicator mechanisms and other parts of the apparatus are fully described in the Specification.