Part 3 — A Glass Breaker
Reading edition
After cutting glass, and especially where a small strip is to be removed, the part must be broken away in small pieces. The accompanying sketch shows a very useful tool for this purpose. The tool is made of a piece of metal having a bolt fastened to it at one end whose nut can be adjusted to the thickness of the glass.
The Nut is Set to the Thickness of the Glass and Used to Break Pieces Away
Old discarded blueprints can be made white and used for sketching by dipping them in a solution of soda and water, in the proportions of 4 oz. of soda to each gallon of water.