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US Patent: 247,406
Pipe Tongs
Patentee:
Nathan Purdy - Fall Brook, PA

USPTO Classifications:
81/90.4

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

Assignees:
None

Manufacturer:
Nathan Purdy - Fall Brook, PA

Witnesses:
Sanford Dewey
Theodore Withey
C. Sedgwick
Theo. G. Koster

Patent Dates:
Applied: Jul. 15, 1881
Granted: Sep. 20, 1881

Patent Pictures:
Nathan Purdy patent September 20, 1881
USPTO pdf tiff
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Description:
The jaws are hinged to each other, and attached to the handle by a pair of links. There is no provision for significant size adjustment.

The patent model is shown on the cover of Steven Eckers' compilation "Wrench Patents 1790-1911." Ken Cope's "American Wrench Makers 1830-1930" cites a "Scientific American" listing for this tongs.

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