GB237635A - An automatic machine for moulding blocks and tiles for walls, floors, roofs and the like - Google Patents

Abstract

237,635. Wikkula, V. March 31, 1924. Endless-chain machines; feeding. - In automatic tile &c. machines of the type in which the mould chain passes over polygonal wheels, the central portion of the chain is supported upon a table which is given a tilting movement corresponding to the rise and fall of the chain as it passes over the angular corners of the wheels. The table M, Fig. 2, is pivoted upon a horizontal shaft H and is supported at the end by supports M<1> carrying rollers which engage with eccentrics F, Fig. 4, which impart a tilting movement to the table corresponding to the movements of the chain as it passes over the polygonal wheels D. Plastic material is supplied to the moulds in layers by two moving containers k, i, and a stationary container h prior to passing below a press l. The containers k, i are moved transversely across the moulds when the chain is stationary by a lever o, Fig. 4, operated by a pin n carried by gear wheels m, and are returned by a counterpoise r. The container i may be divided by partitions if it is desired to have more than three layers of material in the tiles. The stationary container h is provided with a roller a rotated by belt pulleys at the bottom to prevent stones or other coarse particles from getting between the lower edge of the container and the walls g of the moulds. The press l is operated by bell-crank levers t on both sides of the machine, and simultaneously wedgeshaped side members u, Fig. 4, move down to force side presses v to compress the sides of the tile into the desired shape. The completed tiles are discharged from the moulds by a lever B operating through holes in the chain. The loose sole plates, upon which the layers of material are spread, are placed upon the chain at D<1>. The chain is intermittently moved by the ratchet mechanism e<2>, e<3> operated by a rotating arm e.