GB736104A - Improvements in and relating to brick and the like kilns - Google Patents

Abstract

736,104. Brick kiln doors. BUTTERWORTH, B. Dec. 8, 1953 [Dec. 8, 1952], No. 31097/52. Class 51 (2). In a continuous brick kiln of the multiple chamber type having openings 1 in the outer wall 2 of the same size as the chamber arches, a massive door of prefabricated sections 3 extends over the full height and width of the opening. Each section 3 comprises a refractory concrete base 4 slotted at 5 to receive the forks of a lifting truck, a facing of refractory bricks 6 bonded as at 7 into a backing 8 of common bricks or clay hollow bricks and vertical tie rods 9 located near the cold outer face. The tie rods, which extend between a steel channel member 10 laid across the top of the section and the concrete base 4, have heads 11 in the base and upper nuts 12 with springs 13 to allow for differential expansion and contraction. The vertical edges of the sections are provided with rebates (Fig. 4, not shown) or offsets (Fig. 5, not shown), so that a slot is formed between abutting sections to receive a sand seal. The pavement outside the openings 1 is sloped downwardly to retain the sections in position against the kiln wall. The door may be divided horizontally as well as vertically.