US Patent: 55,772 - Improvement in operating hammers and stamps


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US Patent: 55,772

Improvement in operating hammers and stamps

Patentee:

Christopher Retallick James (exact or similar names) - Toronto, ON Canada

USPTO Classifications:

91/189R, 91/350

Tool Categories:

metalworking machines : forging machines : steam hammers

specialty machines : ore processing apparatus

Assignees:

Christopher Retallick James - Toronto, ON Canada

Nathan Woodhull Condict, Jr. - Jersey City, NJ

Manufacturer:

Not known to have been produced

Witnesses:

Henry T. Brown

J. W. Coombs

Patent Dates:
Granted:	Jun. 19, 1866

Patent Pictures:

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Description:

The patent specification describes previous apparatus where the hammer or stamp is forced down by steam pressure and is then raised by cams or other mechanical means. The invention is a simpler means by which steam pressure is also used to lift the hammer on the upstroke as well as powering it on the downstroke.

See also early Canada patent XC-2,501 and British patent GB-186,602,677.