Society of Glass Technology · [Sheffield] · leaf 537
ogether.Thus the walls can be repaired by the replacement of one or moredamaged blocks. The topstone, 6, is supported by rods, 20,depending from the usual trussing, 23, and screwed at their lowerends into an iron pipe, 18, which passes through channels, 17, inIho blocks, 13. The rods, 20, are… … Fig. 33. fluid, such as water, air, or steam. U.S.A. Pat. No. 1187025 isreferred to in the specification. G. D. 64. Drawing Glass Cylinders. William E. Standley (U.S.A.Pat., June 24th, 1919, No. 1307381. Filed November 17th,1915, No. 61974).—A blowhead used in drawing cylinders is pro-vided with…
Glass
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