Society of Glass Technology · [Sheffield] · leaf 719
funnel, r, as described in Specification 166605. Specification27227/05 is referred to. H. G. C. 412. A Cam-actuated Valve for Glass-working Machinery. M. White, York, and A. E.Clegg, Leeds (Brit. Pat., No.180895, May 28th, 1921).—Acam-actuated valve for glass-working machinery and thelike,… … MACHINERY FOR THE WORKING OF GLASS. 319
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
