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GB Patent: GB-1,391,409
Wrench
Patentee:
Komei Ono - Tokyo, Japan

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 18, 1973
Granted: Apr. 23, 1975

Patent Pictures:
K. Ono patent GB-1391409 (edited)
Report data errors or omissions
GB-1391409 in ESPACENET
Description:
"According to the present invention, there is provided a wrench comprising three curved tightening members pivotally connected to each other, a lever which is pivotally connected to one end of the connected curved tightening members, a clamping member which is pivotally connected to the other end of said connected curved tightening members, and means for removably engaging said clamping member with said lever, said means comprising a pin and a plurality of indentations."

This patent number and corresponding U.S. patent number 3,885,479 appear on some TURNY brand wrenches produced in Japan -- see that DATAMP entry for more details on the wrenches as produced. The ESPACENET record shows equivalent patent numbers for several countries.

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