US Patent: 2,273,807 - Speed Change Gearing


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US Patent: 2,273,807

Speed Change Gearing

Patentee:

Raymond m Woytych (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

192/48.8, 74/371, 74/378, 74/745, 82/131

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms

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:	Apr. 24, 1941
Granted:	Feb. 17, 1942

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:

Original application filed 07 Jun., 1939. Divided and this application filed 15 Apr., 1940.

Claim:

The invention relates to improvements in speed-change gearings. The present application is a division of my co-pending application filed 07 June, 1939, Patent No. 2,269,641 issued January 13, 1942. In said co-pending application is described and claimed a facing attachment for horizontal boring, drilling and milling machines, the present speed-change gearing being particularly adapted for use in such a machine tool attachment although it will be plain to those skilled in the art that speed-change gearings embodying the present invention may also be desirably used in a wide variety of other types of installations.