US Patent: 1,183,371 - Automatic wrench


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


Quick search:	Patent number:	Patent Date:

US Patent: 1,183,371

Automatic wrench

Patentee:

Michael I. Ginsburg (exact or similar names) - Philadelphia, PA

USPTO Classifications:

81/111, 81/90.2

Tool Categories:

wrenches : nut wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

T. Foster Thomas

Leonard W. Belz

Patent Dates:
Applied:	Jul. 05, 1913
Granted:	May 16, 1916

Patent Pictures:

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

Description:

This wrench tightens when rotated in one direction and when rotated in the other direction will loosen sufficiently to allow the wrench to rotate around the nut.