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CA Patent: CA-32,797
Wrench
Patentee:
Caleb Strong DeWitt (exact or similar names) - Lockport, IL

USPTO Classifications:

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward M. Bray
Daniel P. Lemon

Patent Dates:
Applied: Oct. 14, 1889
Granted: Nov. 11, 1889

Patent Pictures:
Caleb S. DeWitt patent November 11, 1889 edited from Canadian Patent Office Record
CIPO Data
Report data errors or omissions to steward Stan Schulz
32,797 in Canadian Patents Database
Description:
Screw adjusting combination nut and pipe wrench with two adjusting screw sets. The rapid adjustment is accomplished by rotating the handle which moves the "outer jaw" and shank. A fine adjustment screw sleeve moves the "inner jaw."

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