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CA Patent: CA-136,213
Pipe Wrenches and the Like
Patentee:
William Andrew Hyle - Toronto, ON Canada

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches

Assignees:
MacDonald and Sons, Ltd. - Toronto, ON Canada

Manufacturer:
Barcalo Mfg. Co. - Buffalo, NY

Witnesses:
H. J. S. Young

Patent Dates:
Applied: Jan. 10, 1911
Granted: Oct. 17, 1911

Patent Pictures:
William Andrew Hyle patent Oct. 17, 1911
CIPO Data
Report data errors or omissions
CA-136213 in Canadian Patents Database
Description:
Pipe wrench with the adjusting nut and sector blocks in a circular opening in a solid frame. Corresponding U.S. patent 1,026,040 granted May 14, 1912 includes details of a replaceable gripping piece for the fixed jaw.

Known examples produced by BARCALO, of Buffalo, N.Y. cite this 1911 patent.

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