US Patent: 2,215,140 - Planetary tool feed


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US Patent: 2,215,140

Planetary tool feed

Patentee:

John M. Walter (exact or similar names) - Cincinnati, OH

USPTO Classifications:

409/323, 74/410

Tool Categories:

metalworking machines : milling machines

Assignees:

G. A. Gray Co. - Cincinnati, OH

Manufacturer:

G. A. Gray Co. - Cincinnati, OH

Witnesses:

Unknown

Patent Dates:
Applied:	Mar. 10, 1939
Granted:	Sep. 17, 1940

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for G. A. Gray Co.

Description:

"This invention relates to feeding or reciprocating means for machine tool elements, more particularly the work table of planer-type milling machines or of boring machines of the horizontal rotating bar type..."