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US Patent: 102,307
Wrench
Patentee:
Johan Fredrik Nordquist - Gottenburg, Sweden

USPTO Classifications:
81/129.5, 81/141

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Alban Audren
H. H. Southwick
John H. Lord
John G. Busfield

Patent Dates:
Granted: Apr. 26, 1870

Patent Pictures: [ 1 | 2 ]
Johan F. Nordquist patent April 26, 1870
USPTO pdf tiff
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Description:
The movable jaw has fine teeth on an inner face to mesh with similar fine teeth on the main bar. The adjustment is held by a cam-lever which applies pressure on a small piece in the back of the movable jaw. Canadian patent CA-2,460 of June 14, 1873 has a similar cam-lever without an intermediate block between the cam and wrench shank.

Some collectors suggest an unmarked malleable iron quick adjusting wrench with a toggle cam bearing directly on the back of the main bar is related to this patent, but the resemblance may be coincidental - 4 inch & 9 inch examples shown in 2nd image.

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