GB424946A - - Google Patents

Abstract

424,946. Plugging blast - furnace tapholes. GIESE, A. F., 644, Grant Street, Gary, Indiana, U.S.A. Oct. 10, 1934, No. 29075. Convention date, Oct. 16, 1933. [Class 51 (ii)] In a clay gun for plugging blast-furnace tapholes, the cylinder 10 is permanently mounted in a fixed position at one side of the runner-trough 28 and is connected by tubing 46 ... 49 to a curved discharge nozzle T which is rotatable about an horizontal axis so as to move into and out of the taphole 27. The nozzle T is carried by a tubular horizontal member 29 rigidly mounted on a shaft 31, the latter being supported by a bearing pedestal 32 and adapted to be rotated through gearing 34 by an electric motor 38. The upper end of the nozzle T is formed as a bend 40 disposed at its upper part coaxially with the tube section 49, this bend being welded at 45, Fig. 5, to a flange member 44 which extends into a chamber 68 formed between a cylindrical wall 55, the wall 51 of a fixed pedestal 53, and an annular end plate 56. A brass or bronze bearing-ring 59 is interposed between the flange member 44 and the end plate 56. The tube section 49 extends through the wall 51 and is welded thereto at 54, while a tight joint between the end of this section and the flange 44 is effected by packing material 64 which is held in place and compressed by a ring 65 and bolts 66. Apertures are formed in the wall 55 to provide access to the bolts 66.