Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 280
Model 22. Model 23—Centre-Punch: Cast-Steel.—Take a bar of f-inchoctagonal cast-steel and forge down round to a suitable length,allowing for the point, anneal as in the previous model, thencut off to length. Fix the forging in the lathe chuck, and file … Model 23. up the taper and point. Now file up bright the octagonalsides, clean off the top, and chamfer. The model is nowready for hardening and tempering, after which it should bebrightened all over with emery-cloth and oil. Model 2^—Flat Chisel: Cast-Steel.—Forge the end of aJ-inch octagonal bar…
Metal-work
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