Society of Glass Technology · [Sheffield] · leaf 471
ssignor to Westlake Machine Co., Toledo (U.S.A. Pat., No.1350552, August 24th, 1920. Filed May 25th, 1917, No. 170895).—This gathering device comprises a mould, 27, with hinged sections,18, formed with semicircular recesses, 14, on their inner faces.When these mould sections are closed glass may be… … Fig. 42. revolved on its axis, 180, first in one direction and then in theother by means of spiral slots, each passing one-half way roundthe circumference of the sleeve, into which fit rollers carried onstuds secured to slides. These slides are reciprocated by meansof a groove on the under side of…
Glass
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