Machine for forming sheet metal
United States Patent 2944500

Inventors:
Raynes, Burt F.
Publication Date:
07/12/1960
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Assignee:
ROHR AIRCRAFT CORP
Primary Class:
72/342.920
Other Classes:
72/414, 266/100, 100/320, 373/110, 72/37, 38/17, 100/323, 72/342.100, 266/252, 100/326
International Classes:
B21D22/00; B21J7/44; B21K29/00; C21D7/13; C21D9/00; B21J7/00; C21D7/00
US Patent References:
2348921Draw press
2396218Deep-drawing magnesium-base alloy sheet
2489459Metallurgical furnace
2512484Method of forging railway axles
2719443Drop hammer
2776134Heat treating apparatus