Society of Glass Technology · [Sheffield] · leaf 527
daily operations, especially when a line wasdrawn from the point representing the normal weeks production(of glass) and consumption (of fuel) to the zero. From this, thedaily output could be checked, and deficiencies more easily correlatedwith their causes, whether they were furnace troubles or… … Fig. 63. glass panes composed of sheets separated from one another butjoined at their edges, the space between the sheets being exhaustedof air. Apparatus for making the panes comprises a base, 1, and a GLASS : MANUFACTURE AND PROPERTIES. 83 platen, 2, movable relatively to each other and mounted…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
