Society of Glass Technology · [Sheffield] · leaf 468
Fig. 36. MACHINERY FOR THE WORKING OF GLASS. HO described in Specification 111716, and the polishing by a similartool covered with felt. The resilient surface may be provided bycork or sponge-rubber, or it may be a rubber disc under fluidpressure. H. G. C. … 136. Grinding and Polishing Machinery. (Brit. Pat. No.111716.) H. P. GowLLAND (December 7th, 191G, No. 17607).—Tools for smoothing lenses aftergrinding consist of an elastic headcovered with chain-mail fabric, orhaving a series of metal buttonssecured thereon. The disc 1mounted on the spindle 13…
Glass
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