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US Patent: RE4,917
Improvement in Pipe-Tongs
Patentee:
Henry Herbert (exact or similar names) - Cincinnati, OH

USPTO Classifications:
81/409, 81/423

Tool Categories:
wrenches : pipe wrenches : pipe tongs
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
James H. Layman
John Kiloh
Geo. H. Knight

Patent Dates:
Granted: May 28, 1872

Reissue Information:
Reissue of 45,496 (Dec. 20, 1864)

Patent Pictures:
Henry Herbert Reissue Pat. May 28, 1872
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Description:
The focus of the patent is the changeable bits for the jaw, which provide cutter, threader and wrench functions.

The specifications differentiate these jaw elements from those described in William Webster's February 9, 1864 patent (no. 41,554).

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