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US Patent: 3,653,282
Power Tool Turret Assembly
Patentees:
Russell D. Bouffiou (exact or similar names) - McFarland, Dane County, WI
Christian A. Nielsen (exact or similar names) - Madison, Dane County, WI

USPTO Classifications:
29/39, 408/35, 74/813C, 74/813L, 74/815, 74/818, 74/821, 74/826

Tool Categories:
metalworking machines : metalworking machine mechanisms

Assignees:
Giddings & Lewis, Inc. - Fond Du Lac, Fond Du Lac County, WI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Oct. 13, 1969
Granted: Apr. 04, 1972

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:
Abstract:

A machine tool turret head, more particularly a power operated turret head, is provided with fluid power actuated toggle means for axially clamping the turret head to the machine tool ram or saddle. When a wedge member is withdrawn from a position between the toggle members, the turret head is released from a clamped work position and allowed to slide axially for a limited distance along a turret head stem. Logic circuitry and a resolver are employed to cause a motor and drive train to rotate the turret head and to locate the head via the most expeditious route within the predetermined initial angular tolerance limits of a new work position. The wedge member is then reinserted between the toggle means to move the turret axially back along the stem, and reclamp the turret in its new work position. A lost motion coupler is included in the drive train to allow the turret head to rotate slightly as it moves into its clamped position without damage to the associated drive train or other parts.

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