US Patent: 2,871,993 - Clamping Mechanism for Machine Tools


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US Patent: 2,871,993

Clamping Mechanism for Machine Tools

Patentee:

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

USPTO Classifications:

188/74, 188/83, 408/236

Tool Categories:

metalworking machines : metalworking machine mechanisms

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

Assignees:

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

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jan. 10, 1956
Granted:	Feb. 03, 1959

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 is directed to a clamping mechanism for machine tools generally, and in particular, for clamping the rotatable column of a radial drill to its 'base so as to lock the overhanging arma and drill head securely in a selected radial position.