Smith, Walter, 1836-1886, Smith, Walter, 1836-1886. Industrial art of the International Exhibition · New York, R. Worthington · leaf 372
al method of engraving on glass is by the use of a small copperdisc, set in a foot-lathe. This disc being set in motion is made to revolve with ingenious American in- great rapidity by thefoot of the workman,who at the same timeholds the object to beengraved against theedge of the disc, whilehe is… … Crystal Pitcher: y. Green &> Nephew, London. vention by which glassis cut or engraved bymeans of a jet ofsharp sand being blownthrough a small orificeagainst the surface ofthe. glass. By this dis-covery, which is ofcomparatively recentdate, not only glass,but the surface of crys-tals, of…
Centennial Exhibition (1876 : Philadelphia, Pa.) · Decorative arts
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