Patent GB-190516646-A (GB)
Title: Automatic Type Casting Machine.
Inventor: SENNETT SYLVESTER JAMES
Filed: 1905-08-16
Granted: 1906-05-17
Abstract: 16,646. Sennett, S. J. Aug. 16. Type.-Relates to an automatic type -casting machine provided with means for finishing and nicking. The metal pot B, Fig. 4, is provided with a piston chamber b and piston C, a discharge nozzle B', and a valve chamber b<1>, communicating with the pot through a duct b<2> and with the piston chamber through a duct b<5>, and fitted with a choker valve b<3> terminating in a needle valve for the nozzle orifice. The mould, Figs. 3, 4, and 6, comprises a reciprocating bottom member D, a fixed end plate E, formed with a tapered orifice to fit the nozzle B<2>, and, on a swinging carrier F<1>, an interchangeable reciprocating top and blade member G, two adjustable side members F, and a movable or reciprocating matrix H. After casting, the carrier F<1> swings over for discharge of the type, by the blade G, into a receiving-guide K. As the type is forced into the guide K, the jet is broken off by a piece M, Fig. 7, and, as the type passes along the guide K, the end is grooved and finished by a stationary tool N, and the nicks are formed by rotary cutters P. The guide K has a yielding back-plate K<1>, supported by springs K<2>. A spring- retained pivoted finger S holds or pushes the type against the tool N. The parts-are adjusted and actuated as follows :-The metal pot B is mounted on a slide B<3> on guides A<1>, for movement into or out of operative position, The piston C is raised by means of a cam actuated lever having an adjustable connexion c<2> with the piston-rod C<1>, and is returned with a quick movement by means of a spring c3. The choker valve b<3> is actuated by means of an arm b<14> on a cam-actuated spring- returned.rock-shaft b<13>. The mould member D is actuated by means of a cam r<2> and a spring d<12>. The cam r' actuates a lever d<4>, provided with arms d<6>, engaging a cross-pin d<7> fitting in a slot d<8> and engaging a spring d9 bearing against a head d<10> on a stem d<11> of the part D. The spring d<12> is interposed between the head d<10> and a shoulder on the. framing. The mould, carrier F<1> is on a camactuated spring-returned rock-shaft f<4>. The sides F are adjustably secured to the carrier F<1> by means of slots f<1> and set-screws f. The blade G is provided with a head g, slotted over an adjustable stop G<1>, for depth adjustment. Springa g<6> hold the blade up against the stop G'. Downward movement of the blade is effected by means of a spring-tensioned lever g<14>, connected by a rod g<11> with a cam-actuated lever g<9>.The matrix H is on a-holder H<1> having a stem h<4> passing through an adjusting-block H<2>, which carries an adjustable guide for the holder H<1>. The stem h<4> is surrounded by a returning-spring h7 and connected to an arm h<3> on a cam-actuated rockshaft (not shown). The matrix H is held in the holder H<1> by a spring-depressed clamp pin h<9>, which engages in a registering-hole h<10> in the matrix, and is mounted on a swinging bracket h<12>, attached to the holder H<1> by means of a pin or bolt h<13>. A spring attached to an arm on the bracket h<12> holds or pushes the matrix lengthways against a shoulder on the part H'. The cutters P are on a shaft p, driven continuously by belt gearing.