GB941162A - Brick cladding apparatus - Google Patents

Abstract

941,162. Bending metal sheet around refractory bricks. H. K. PORTER CO. Inc. May 4, 1962, No. 17299/62. Headings B3A, B3E and B3Q. [Also in Division F4] Apparatus for applying successive metal casings made from metal blanks to successive refractory articles comprises first bend means for bending said metal blank along the bottom edges of said refractory article, second bend means for bending said metal blank along the top edges of said refractory article to cover four surfaces of said refractory article with a pair of opposite ends of said metal blank substantially meeting on one said surface forming a metal wrapped refractory article, and means for securing together said opposite ends of said metal blank. Metal blanks 56 are fed in succession from feed means 53 to conveyer belts 69, 70 driven through belt and pulley means 72, 71 from an idler gear 41 supporting an intermittently driven conveyer chain 37. Bricks 55 move in succession down rollers 80 to rest against a stop-plate 84 over the chain conveyer 37 and above a blank 56. Projections 38 on the chain 37 push the bricks 55 off the rollers 80 on to longitudinal guide brackets above a blank 56. At a station 57, with a brick 55 on a blank 56 supported on longitudinal guides 107, the blank is bent by rollers 97, Figs. 8, 9, up along the sides of the brick, the bending occurring at rows of perforations in the blank. Each roller 97 is urged by a spring 104, Fig. 9, towards the brick and is raised by a plate 103 lifted by hydraulic cylinder means 111, the brick being held down during this operation by a ball-and-socket mounted clamp 124 moved down by hydraulic cylinder means 119. At the next station 58 rollers 145 bend the ends of the blank over the top of the brick, Fig. 11. The rollers 145 are urged downwardly by springs and are moved in by hydraulic cylinder means 158. Spring- urged clamps 139 hold the blank against the sides of the brick during bending and an upper clamp 168 holds the top of the brick during the initial part of the bending. At station 59 the metal wrapped brick 55 is lifted past the conveyer 37 on rail members 170 raised by hydraulic cylinder means 171, 172, and presented to stapling machines 169, the bricks being guided by spring-urged pressure bars 195. Staples 95, Fig. 16, are then inserted to connect the opposite edges of the wrapped blank 56, recesses 94 in the brick 55 accommodating the staples. At the station 60, Fig. 18, the staples 95 and part of the sheet 56 are depressed to form dimples 96, Figs. 20, 21, by tools 207 carried on arms 209 pivoted on a support 210 and depressed by hammers 226 lowered by hydraulic cylinder means 222. Alternative forms of wrapped metal blank are shown in Figs. 20, 21.