GB629037A - Casting device for centrifugal casting machines - Google Patents

Abstract

629,037. Centrifugal casting-machines. SOC. POMPES NOEL. June 23, 1947, No. 16535. Convention date, Sept. 18, 1946. [Class 83 (i)] Pouring-apparatus.-In a centrifugal casting- machine of the kind wherein a rotatable mould is relatively movable with respect to a pouring trough, the trough is made of one single piece, the cross-sections of which have a substantially crescent-like shape. Metal is fed to a mould which rotates inside a carriage 1 movable on an inclined track 3, along a feeding channel 8 made in one piece from a cylindrical steel bar machined to the section shown in Fig. 5. The channel 8 and spout 6 may be turned over to discharge the residue of metal in the channel after casting by a rack-and-pinion 14, 15, operated by a piston 17, and the channel 8 is supported at its free end in the withdrawn position by a carrier 18 swung into or out of engagement with the channel by a rack-andpinion 22, 23 operated by a piston 25. The pistons 17, 25 are automatically operated in correct sequence by the movement of the carriage 1, a lug 26 thereon operating levers 27, 28 which control compressed air or hydraulic fluid distributers. In a modification, the axis of rotation of the channel is inclined to the longitudinal axis of the mould and at the point of intersection of these axes the channel rests on a flanged roller carried by arms fixed to the carriage. The channel may have the sectional shape shown in Fig. 8. In a further modification several retractable carriers may be located along the channel. The apparatus is said to be suitable for casing pipes having an internal diameter of less than 60 mm.