Society of Glass Technology · [Sheffield] · leaf 669
, areemployed, and air isadmitted to the cylinderseither through the baits or,a = shown, through tubularbosses, 17, in the pot. Awater-cooled box, 18, pro-jecting into the inner cylinder is used to cause setting of the glassof the inner cylinder, and a water-cooled jacket, 15«, surroundingthe outer… … MACHINERY FOR THE WORKING OF GLASS. 187 tion relates to the drawing of glass in sheet form and to meansfor preventing the pulling-in of the edge of the sheet, The draw-ing member consists of a block, 4 (Figs. 151 and 152), floating onthe metal, 3, and provided with an elongated slot, 15…
Glass
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