Patent GB-190001960-A (GB)
Title: Improvements in or relating to Type Impression Mechanism and Matrix Making Machines.
Inventor: BOULT ALFRED JULIUS
Filed: 1900-01-31
Granted: 1901-01-12
Abstract: 1960. Boult, A. J., [Sears, C.]. Jan. 31. Type -writers; stereotype -matrix machines; linotype machines.-Relates to t y p e impression a n d matrix-making machines, in which, as finger keys are operated, corresponding characters are impressed, producing a line-matrix adapted for use in casting a type-bar, the various features being adapted for use on type-writing machines. Fig. 1 shows the machine in plan with some of the parts removed, and Figs. 4 and 6 show certain parts more fully. The machine has sliding carrier-plates B, B', B', with a number of guides at rightangles to their path of movement and a number of type-carriers A mounted upon the carrier-plates and spring-actuated mechanisms for independently moving the plates and type-carriers. The typecarriers, Fig. 10, have in their ends dovetail notches b<1> which, when the carriers are in their home positions, are in the same horizontal line with a longitudinally-movable rod b<3> having a dovetail tongue adapted to engage with the notches b<1>. The rod b<3>, with its rack teeth b<5>, is adopted to move the carrier-plate in both directions ; the pinion b<6> engages with the rack teeth, and another pinion b<7> connected therewith engages with two rack-bars b<8>, b<9> on opposite sides, and one of the bars can be connected with the rack-bar operator G by a latching- device g. The box C is raised by two shift keys, and the carrierplate on the operative plane is moved to the right or left by the bar b<3> from the swinging lever G The carrier in the impression line is moved rearward to bring the proper character to the impression point by the spring-actuated lever a<8>, and is returned to its home position by the lever a<6>, the rearward movement being determined by the position of the stepped plate F which is moved by the oscillating sleeve f<5>. The keys, of which two are shift keys, three are space keys, and one is used to move a new matrix block on to the matrix carrier, are pivoted on the rod K<5>. The key levers have studs k, k<1>, k<2>, which are moved into the path of the spring-actuated swing frame when depressed, the studs being placed at different distances, proportionate to the character widths, from the parts of the frame which engage with them. When a key lever is depressed, the shaft E is rotated once, and one of the cams e<1>, e<2>, e<3> carried by the disc e on the shaft by intermediate mechanism, moves the frame and holds it in its home position. The rotatable shaft E is connected to the constantly-rotating shaft E' by the spring-actuated automatic clutch, shown in Figs. 15 and 16, which has a releasing lever arm 61, 62 and a movable stop D for engaging the arm, the stop being withdrawn by mechanism when a key lever is depressed. As the rock shaft T returns to its home position, it moves the escapement mechanism in the feeding direction. The escapement mechanism transforms the oscillations of the rock shaft T into proportionate movements in one direction of the shaft 33, which moves the matrix block through the bevel gear 42<a>, j, and toothed wheel J<1>. On the escapement shaft is secured a ratchet, and a pawl-carrier adapted to oscillate thereon. The pawlcarrier, on the depression of a key, moves backward and forward a distance proportionate with the corresponding character. The toothed feed-wheel J<1> is permitted to slide upon the vertical shaft J by a tongue and groove, and is moved up and down by mechanism connected with the verticallymovable matrix holder P. The slide q<3>, operated by the rod q<7>, moves the matrix blocks O out of the hopper Q on to the holder P, which is moved up and down by an eccentric adjustable in length on the shaft E, and the stop pin W is adapted to be moved into and out of the path of the matrix blocks to serve as a stop for them and stop them in the same position relatively to the impression point. The type-carriers A may be removed, and others having different sized type substituted.