Society of Glass Technology · [Sheffield] · leaf 701
Fig. 178. 21, are provided in the front wall of the combustion chamber, 7,for use when oil, clean producer gas, or natural gas is used as fuel. H. G. C. 323. Rotary Tube Lehr. Corning Glass Works, CorningNew York, U.S.A. (Brit. Pat., January 17th, 1920, No. 140374).—In the heat treatment of… … Fig. 180. FUELS, REFRACTORIES, AND FURNACES. 219 bulbs, the furnace or lehr is in the form of a rotary-heated tube,along which the articles move either by reason of the conoidalshape of the articles or the conoidal shape of the tube. As shownin Fig. 179, the rotary tube, 10, enclosed within a…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
