Society of Glass Technology · [Sheffield] · leaf 731
ducts,7, are formed. The ducts lead themolten glass, as shown, around opposite sides of the sleeve valve,14, and feeding-plunger, 15, so that the temperature of the glassis kept more uniform. The adjustable plugs, 9, enable the ductsto be closed or restricted to assist in regulating the temperature… … Fig. 174. 395. A Machine for Finishing Bottle Necks. G. E. Batesonand H. A. Bateson, Victory Glass Works, Spekeland Road, Liver-pool (Brit. Pat., No. 201000, June 16th, 1922).—Relates to amachine for finishing bottle necks, of the type described in Speci-fications 8430/14 and 134801, in which a…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-951-429.webp)
