Patent GB-190815334-A (GB)
Title: Improvements in and relating to Machines for Casting and Finishing Type.
Filed: 1908-07-20
Granted: 1909-06-17
Abstract: 15,334. Quillaoq, A. L. G. de, and Soc. des Etablissements A. Foucher. July 20. Type.-Relates to type-casting machines such as the Foucher machine and more particularly to (1) the conveyer which removes the cast type from the mould, (2) means for operating the mould blade, and (3) the melting-pot. The mould comprises fixed and adjustable blocks a, b, Fig. 2, between which slides a blade c attached to a carrier C. The top of the mould is closed by a block d carried by a reciprocating slide D. (1) The conveyer or gripper, which carries the cast type from the mould to the finishing-device F, is not carried by the slide D as heretofore, but by, an independently-operated slide E which also carries a cutter e for trimming the face of the type before it leaves the mould. As the finisher F is carried by the movable member B which supports the adjustable mould block b, adjustment of the block b for change of fount will necessitate an alteration of the travel of the slide E. In order to avoid this, the finisher F is either rendered adjustable on the block B by means of wedges, or is mounted on a fixed part of the machine. (2) The mould blade c is positively moved in both directions by a cam H, Fig. 3, which oscillates a curved lever I turning about a pivot i<1>. A stud j, which is adjustable in a groove in the lever I, is connected by a rod J with an arm K on a shaft L. An arm M, Fig. 2, on the shaft L fits in a mortise in the blade carrier C. Alteration in the stroke of the mould blade is effected by moving the stud j along the lever I, which may be provided with a scale. In order to ensure that the upper limit of movement of the blade c is constant, the parts are so arranged that, when the blade is at the top of its stroke, the pin k, which connects the rod J and arm K, is at the centre of curvature of the lever I. The piu k and the bowl i which is engaged by the cam H are adjustable by means of set-screws. The accurate movement of the blade is further ensured by stops c', C<1>, Fig. 2. The crank M is detachable to facilitate removal of the blade. In a modification, the rod J operates a slide which is connected by a lever with the blade carrier C. (3) The melting-pot N, Fig. 1, is attached to a jacket N<1> mounted on a movable carriage N<2>, which is guided by a tenon n and mortise n<1> in the mould frame. The temperature of the metal is regulated by a steel bulb P, which is connected by a tube p with an instrument acting on the gas supply in known manner. Corrosion of the bulb is prevented by a cast-iron sleeve Q, or the piston R may be made hollow for this purpose. The bottom of the melting-pot is provided with radial gills n<2> to increase the heating- surface. The platform N<3> on which the ingots of metal to be melted are laid is increased in area to enable the ingots to be exposed to heat for a longer time. A suction valve S is placed in the ring R<1> in which the piston works to enable the metal to pass through the ring during the up-stroke of the piston. Play in the gudgeons which connect the piston with the operating-lever is prevented by a spring T placed between the gudgeons and a crosspiece U which serves as a guide for the piston.