US Patent: 2,830,628 - Multi-speed drive for band saws and the like


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US Patent: 2,830,628

Multi-speed drive for band saws and the like

Patentees:

David D. Pettigrew (exact or similar names) - Pittsburgh, PA

Yih-O Tu (exact or similar names) - Pittsburgh, PA

USPTO Classifications:

474/72, 474/74, 474/77, 74/368, 74/370, 83/571, 83/788

Tool Categories:

woodworking machines : bandsaws

metalworking machines : metal sawing machines : metal cutting bandsaws

Assignees:

Rockwell Mfg. Co. - Pittsburgh, PA

Manufacturer:

Rockwell Mfg. Co. - Pittsburgh, PA

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 28, 1955
Granted:	Apr. 15, 1958

Patent Pictures:

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Vintage Machinery entry for Delta Specialty/Delta Mfg. Co./Delta-Rockwell/Rockwell Intl.

Description:

The patent number was listed in a 1965 catalog of machinery from Rockwell Mfg. Co. Co-inventor Yih-O Tu (1920-2005) was at Rensellaer Polytechnic Institute at the time this patent was granted. He would later work at IBM's prestigious T. J. Watson Research Laboratory and at IBM's Research Division Laboratory in San Jose, California.