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CA Patent: CA-1,135
Improvements in socket-wrenches
Cass' Ready Wrench
Patentee:
James Fortune Cass - L'Orignal, ON Canada

USPTO Classifications:

Tool Categories:
wrenches : socket wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. Johnson
Wm. K. Brown

Patent Dates:
Applied: Jul. 28, 1871
Granted: Sep. 09, 1871

Patent Pictures:
James Fortune Cass patent September 9, 1871
CIPO Data
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1,135 in Canadian Patents Database
Description:
"Self-selecting" nested square sockets for a brace or other driver handle. Push the wrench down, and the smaller sockets retract. Each socket has a separate compression spring; the sockets have a split corner or are made as paired halves to fit size variations.

The parallel U.S. patent is no. 108,330 issued October 18, 1870.

The inventor's occupation was "gentleman".

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