US Patent: 2,817,982 - Self Equalizing Head Clamping Mechanism


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US Patent: 2,817,982

Self Equalizing Head Clamping Mechanism

Patentee:

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

USPTO Classifications:

408/237

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:	Mar. 12, 1956
Granted:	Dec. 31, 1957

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, such as radial drills and the like, having a head which is moved along an arm relative to a work supporting base, thereby to locate the head and its rotating spindle relative to the work.