Society of Glass Technology · [Sheffield] · leaf 404
ecifi- cation does not necessarily imply that there is no correspondingBritish Patent Specification. I.—Glass-making Materials. 1. Washing Sand, etc. H. Crowther, N. H. Crowther,and C. G. Crowther, Tunbridge Wells (Brit. Pat., No. 165257,April 12th, 1920).—In apparatus for washing sand or other… … Fig. 1. from which the washed sand is discharged to a fixed shoot, I, bybuckets, c, of curved form in cross-section, spaced at their outerends from the end, e, of the drum, and inclined as shown. Thesand is fed to the drum from a hopper, h, and conveyer, j, andwater from a pipe, ra, and the…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
