American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 641
Hammer, Blacksmiths Flatter — A flat-faced hammer used to smooth the sur-faces of forgings. Is held on the workand struck by a helper with a sledge. Hammer, Bumping or Horning — For closing seams on large cans, buckets, etc.Hammer, Drop — Hammer head or monkey or drop is raised by hand or power and…
Machine-shop practice
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