US Patent: 2,330,426 - Radial Drill


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US Patent: 2,330,426

Radial Drill

Patentee:

William G. Hoelscher (exact or similar names) - Norwood, Hamilton County, OH

USPTO Classifications:

116/298, 408/237, 74/333, 74/DIG.7

Tool Categories:

metalworking machines : drilling and boring : drill presses : radial drill presses

metalworking machines : metalworking machine mechanisms : hydraulic apparatus

Assignees:

American Tool Works Co. - Cincinnati, Hamilton County, OH

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Oct. 05, 1938
Granted:	Sep. 28, 1943

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for American Tool Works Co.

Description:

Claim:

This invention relates to machine tools and is particularly directed to the application of hydraulics to the control mechanisms of a radial drill, as well as to certain units of the operating or driving mechanism thereof. Additionally, the invention relates to features of the control and operation which, while herein performed hydraulically, are of general application.