US Patent: 1,933,514 - Chain Pipe Wrench


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US Patent: 1,933,514

Chain Pipe Wrench

Patentee:

Willard S. Stuart (exact or similar names) - East Hartford, CT

USPTO Classifications:

81/70

Tool Categories:

wrenches : pipe wrenches : chain and strap wrenches

Assignees:

Billings & Spencer Co. - Hartford, CT

Manufacturer:

Not known to have been produced

Witnesses:

none listed

Patent Dates:
Applied:	Apr. 15, 1931
Granted:	Oct. 31, 1933

Patent Pictures:

Willard S. Stuart patent Oct. 31, 1933

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Description:

Basic structure similar to the chain wrench in Stuart's parallel patent no. 1,933,513. This patent deals with the chain's attachment to the frame, and the shape of the "fittings" jaw structure.

This is the 3rd of three apparently related successive patents -- see also 1,933,512 and 1,933,513.

Horace L. Rockler, patent attorney