Society of Glass Technology · [Sheffield] · leaf 464
mandrel is rotatably mounted in a bearing 72 carried by an arm,which may be adjusted so as to vary the inclination of the mandrelwithout varying the height of the stream A of glass. The wideend of the housing 68 is closed by a vertically sliding door 81 MACHINERY FOR THE WORKING OF GLASS. 85 with… … Fig. 32. closures affording means for regulating the temperature of thehousing 68. H. G. C 134. Grinding and Polishing Machinery, (Brit. Pat. No.111715). W. Taylor (December 7th, 1916, No. 17600).—In amachine for grinding spherical surfaces, and especially the convexsurfaces of lenses made from…
Glass
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