Society of Glass Technology · [Sheffield] · leaf 571
ly preventsthe metal from flowing out of the tube, 12. A Bunsen burner, 22,is inserted in the hole, 20, when tapping is to take place, and meltsthe plug, 13. The products of combustion from the burner passaround the end of the baffles, as shown by the arrows, and escapethrough the hole, 21. G. D.…
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-1181-528.webp)
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten07unit-1041-661.webp)
