Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 360,731
Wrench
Patentee:
Frank C. Sawhill (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
81/186, 81/306, 81/347, 81/355

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. L. Ourand
Benj. G. Cowl
Jas. V. McMasters
Jos. M. Wilson
Patent Dates:
Applied: Feb. 15, 1887
Granted: Apr. 05, 1887

Patent Pictures:
Frank C. Sawhill patent April 5, 1887
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
This self-adjusting pipe and nut wrench is an improvement on pat. no. 351,656.

Triple pivots and a movable jaw that slides freely on the shank of the fixed jaw provide the adjusting mechanism.

Copyright © 2002-2025 - DATAMP