Abstract: An apparatus having an upper frame with a depending, telescopically elongatable and shortenable suspended structure for supporting at the lower end thereof a working platform in a converter or like metallurgical container, the upper frame being arranged to be supported at the upper end of the converter with the suspended structure extending down through an opening at the upper end of the converter. The apparatus has an endless conveyor which includes a vertical conveyor part extending from the upper frame to a point above the working platform, and a horizontal or inclined conveyor part situated outside the converter and the upper frame, the horizontal or inclined conveyor part permitting, upon elongation or shortening, shortening and elongation, respectively, of the vertical part of the endless conveyor.

Abstract: An apparatus for facilitating the conveyance of material and the erection of walls of closed circumference from bricks, such as refractory bricks, and particularly for lining converters, metallurgical furnaces, such as blast-furnaces, holding vessels etc. includes a vertical frame for supporting a working platform. The apparatus further includes a conveyer means comprising a vertical conveyance path for conveying material to the platform and a supply path for conveying material to the vertical conveyance path. The vertical conveyance path and the supply path are constituted by two runs of an endless conveyor. One of the runs is extendable by shortening of the other run and vice versa.