Marson, Percival · London, New York [etc.] Sir I. Pitman & Sons · leaf 126
the light and show up theprismatic patterns so brilliantly. In cutting glassware, the glass cutter works in frontof a rotating disc of iron carried in a frame. This wheel no GLASS has a bevelled edge upon which a fine jet of sand andwater is allowed to drip from a tundish above. Theabrasive action… … MACHINE FOR SMOOTHING BOTTOMS OF TUMBLERS the intermediate diamond spaces filled in with lightlycut set patterns, until the whole of the intended designis roughed out over the surface of the glass, afterwhich the glass is taken to another frame carryinga stone wheel, which is of much finer abrasive…
Glass manufacture
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