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CA Patent: CA-40,796
Wrenches
Patentee:
Campbell A. McIntosh (exact or similar names) - Vancouver, BC Canada

USPTO Classifications:

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edgar Tate
W. M. Twitchell
Patent Dates:
Applied: May 26, 1891
Granted: Oct. 24, 1892

Patent Pictures:
Campbell A. McIntosh patent October 24, 1892
CIPO Data
Espacenet patent
Report data errors or omissions to steward Stan Schulz
Search Canadian Patents 1869-1894
40,796 in Canadian Patents Database
Description:
An interesting adjustable jaw ratchet wrench. The worm of the jaw adjusting screw drives a ring gear that moves the jaws. The ratchet mechanism is reversible.

U.S. patent no. 455,238 (June 30, 1891) is for the same design.

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