Society of Glass Technology · [Sheffield] · leaf 102
URNACI.S. 7 older designs the bottom was solid and the glass in time penetratedthe brickwork, Avhich in due course gave way, resulting in thesinking of parts of the furnace, penetration of glass into the fluesand filling them up. All this has now been successfully overcome.A special feature of the… … FRONTELEVATION
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
