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US Patent: 5,331
Improvement in Welding Cast-Iron to Malleable Iron or Steel
Patentees:
William Martin, Jr. - Newport, ME
Mark Fisher - Newport, ME

USPTO Classifications:
164/107, 185/40C

Tool Categories:
trade specific : blacksmith

Assignees:
None

Manufacturer:
Fisher and Norris - Trenton, NJ

Witnesses:
Thos. P. Jones
Leml. Williams
H. L. Duncklee
Chase P. Mason

Patent Dates:
Granted: Oct. 16, 1847

Patent Pictures:
FISHER & NORRIS anvil and vise ca. 1852- edited from SCIENTIFIC AMERICAN
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FISHER & NORRIS FACTORY MUSEUM
FISHER & NORRIS anvil & vise (edited from 1852 Scientific American)
Description:
Process patent describing how to successfully cast iron so that it is firmly welded to steel or malleable iron. By the early 1850s, Fisher & Norris were producing anvils and blacksmith vises with steel faces using this patented process. The image is from an 1852 SCIENTIFIC AMERICAN writeup describing FISHER & NORRIS anvils and vises.

FISHER & NORRIS "EAGLE" anvils were based on this and succeeding related patents. The vises, known as "double screw" by Fisher & Norris collectors, are based on E. G. Matthews Aug. 11, 1843 patent no. 3,212.

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