US Patent: 2,848,908 - Planetary Speed Change Transmission


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US Patent: 2,848,908

Planetary Speed Change Transmission

Patentee:

John C. Hollis (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

475/279, 475/290, 475/299, 475/320, 475/346

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking power transmission

Assignees:

Giddings & Lewis Machine Tool Co. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Dec. 10, 1953
Granted:	Aug. 26, 1958

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.

Description:

Claim:

The present invention relates to speed change transmissions and, more particularly, to planetary transmissions of the type having constantly meshed gears brought selectively into driving operation to thereby afford various speed change ratios.