US Patent: 581,267


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 581,267

Wrench

Patentee:

Daniel A. Cheney (exact or similar names) - Central Park, MT

USPTO Classifications:

81/143

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Mar. 19, 1896
Granted:	Apr. 27, 1897

Patent Pictures:

Daniel A. Cheney patent April 27, 1897

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz

Description:

A cam lever on the movable jaw forces a plate with gripping teeth to mesh with rack teeth on the main shank to hold the adjustment. The cam lever and gripping plate are interconnected so that releasing the cam lifts the plate to prevent wear on the teeth as the jaw moves.

Improved by patent no. 611,771.