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US Patent: 4,290,329
Torque Release Wrench of the Preset Type
Patentee:
Talmage O. Green (exact or similar names) - Schaumburg, IL

USPTO Classifications:
81/477

Tool Categories:
wrenches : torque wrenches

Assignees:
Snap-On Tools Corp. - Kenosha, WI

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Oct. 09, 1979
Granted: Sep. 22, 1981

Patent Pictures:
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Report data errors or omissions to steward Stan Schulz
Snap-On Tools Company History
Description:
Harry C. Alberts - patent attorney

Abstract

The structure in its preferred embodiment involves a preset control device for measuring instruments such as but not limited to torque release wrenches of the preset type wherein an elongated casing and handle confines a work engaging member, an elongated load translating member extends therefrom, and adjustible measuring instrumentalities are intergeared therewith to preset the turning load of release. The measuring instrumentalities are dominated by a simple and compact control unit disposed transversely of the elongated casing and handle member to provide a calibrated dial positoned to rotate in the path of a viewing opening in the casing for manual presetting to a selected load. More specifically, this calibrated dial is peripherally geared to mesh with a pinion fixed to a micrometer-like elongated screw which threadedly engages the work engaging translating member to synchronously set its position simultaneously with the rotary setting of the calibrated dial responsive to manually turning a knob fixed to an accessible end of the micrometer-like screw member. This provides a fully geared control unit to release the work engaging load translating member in relation to a trip element adjustably fixed to the interior of the elongated housing in the path of the translating member.

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