Patent GB-191111902-A (GB)
IPC: B41B11/00
Granted: 1900-01-01
Abstract: 11,902. Dodge, P. T. May 17. Single-type composing and casting machines; assembling, clamping, and justifying matrices. -Type-bar making machines such as described in Specification 14,582/90 are modified so as to produce lines of separate types without change in the matrices or spacers. A line of matrices composed in the assembler D, Fig. 1, is raised as usual between the fingers G, G<1> of the linetransfer carriage by which it is moved into the delivery channel I. A frame J then rises and embraces the line, and the spacers are pushed up to justify the line by a justifying-bar K. A step k, which is simultaneously lifted, supports the spacers in adjusted position before the mould. The frame J then descends, the line is moved farther to the left, and the matrices and spacers are removed one by one from the line and carried down to the mould by a shift-carriage L operated by a cam n on the mould-carrier. After each type is cast, the matrix is pushed out of the carriage L into the first elevator 0 in which the line is re-assembled and by which it is conveyed to the intermediate channel, passing thence to the distributor in the usual manner. Moulds.-Four moulds M, Fig. 30, used in succession, are mounted in an intermittentlyrotated carrier N, which is secured to a slide N', Fig. 4, reciprocated by toggle-levers and a cam. Locating-bushings on the carrier engage the usual pins on the machine frame. The carrier is rotated a quarter-turn at a time by a driving-disk carrying a pin s<6>, Fig. 30, which engages slots in a follower s<8> secured to the carrier. A locking-disk s<7>, secured to the driving-disk, engages the curved edges of the follower and holds the mould-carrier stationary during the intervals in its rotation. Each mould consists of a body-portion m, Fig. 26, and a sliding cap-portion m<4>, which are separated by a liner m<10>. A spring m<5> acting on the cap m<4> tends to close the mould, which is normally held open by a pawl m<8>. Jaws are secured to the mould cap and the liner respectively, and between these the matrix is clamped. As the mould advances towards the matrix, a pin m<15> disengages the pawl m<8> so that the mould cap is urged to the right until arrested by the matrix. The mould cap is pushed back so as to open the mould as it moves to the ejecting position by a headed rod m<14>, which strikes a cam on the machine frame. The opening of the mould permits the use of a fullwidth ejector which is secured to a slide reciprocating as usual within a groove in the mouldslide. The ejector is actuated by toggle-levers which are straightened by a rod operated by a crank-pin. Trimming type.-During the rotation of the mould - carrier, the type is carried past a stationary knife mounted on a mould-slide, by which its foot is trimmed flush with the mould. Metal pots and pumps. - The metal-pot P, Fig. 4, has on its sides lugs carrying rollers which engage longitudinal grooves in supporting-brackets. The pot is reciprocated by togglelevers t<6>, t<7> which are straightened by a cam on the secondary cam-shaft s<14>. The pumpplunger is depressed by a spring p<14> and is raised by a rod t' and a cam. Galleys and galley mechanism.-The types are driven by the ejector along a channel q<1>, Fig. 39, in front of a vibrating lever y, actuated by the mould-slide or other means, by which they are pushed on to supporting-plates y<2>, y<3> over the galley Y. The rise of the first elevator causes the plates y<2>, y<3> to be withdrawn, whereupon the line of types falls upon a platform y<10>, which is simultaneously lowered to a slight extent by ratchet mechanism. The end wall of the galley can be lowered to an horizontal position to permit the type to be removed. Driving-mechanism. - The driving-shaft R, Fig. 13, has loosely mounted upon it two pinions r<1>, r<4>, either of which can be connected to the shaft by means of a sliding clutch - member operated by a lever r<6>. The pinion r<1>, which is locked to the driving-shaft when the machine is started, meshes with a gear r<2> on the main cam-shaft which operates the line-assembling, justifying, and transfer mechanisms. At a certain point in the rotation of the cam-shaft, a cam shifts the lever r<6> so as to disconnect the pinion r' and connect the pinion r<4> to the driving-shaft, whereby a secondary cam-shaft s<14>, Fig. 4. which operates the matrix-separating and type-casting mechanisms, is started. After the casting of the last type in the line, the closing of the mould, when no matrix is presented to it, operates to shift the lever r<6> so as to disconnect the secondary and again to start the main cam-shaft.