US Patent: 3,254,567 - Machine Tool Power Drawbolt


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US Patent: 3,254,567

Machine Tool Power Drawbolt

Patentee:

Jesse Daugherty (exact or similar names) - Fond Du Lac, Fond Du Lac County, WI

USPTO Classifications:

409/231, 409/233

Tool Categories:

metalworking machines : metalworking machine 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:	Jan. 16, 1964
Granted:	Jun. 07, 1966

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 machine tools and more particularly to power draw-bolts for securing work tools in the spindles of machine tools.

A power draw-bolt constructed in accordance with the present invention is shown for illustrative purposes in the spindle of a horizontal boring, drilling and milling machine. One of the objects of the present invention, how- ever, is to provide a power draw-bolt which is virtually universally applicable wherever a power draw-bolt mechanism is embodied in a machine tool spindle. The power draw-bolt of the present invention, therefore, is not limited to use in machines of the type shown but, on the contrary, is usable in a wide variety of different machine tools.