Society of Glass Technology · [Sheffield] · leaf 570
ilar system is arranged at each side of theoven. The burners, p, may be muffled if desired. H. G. C. 250. An Improved Muffle Lehr. W. 0. Amsler, Edgewood,Pa. (U.S.A. Pat., No. 1351323, August 31st, 1920. Filed November29th, 1918, No. 264491).—Relates to a muffle lehr designed toenable greater… … Fig. 120a. and in cross section in Fig. 120b. The hot end of the lehr consistsof a muffle chamber, of greater length than usual, built up of tiles,10, 11, and separated from the crown, 5,by a combustion chamber, 17, and fromthe side walls, 2, by side flues, 19. Hotgases from a flue, 15, pass into…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
