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US Patent: 379,340
Power-hammer
Patentee:
Henry St. Lawrence - Northampton, MA

USPTO Classifications:
72/450, 74/44

Tool Categories:
metalworking machines : forging machines : drop hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George W. Clark
Joseph P. Hebert

Patent Dates:
Applied: May 28, 1887
Granted: Mar. 13, 1888

Patent Pictures:
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Description:
"This invention relates to a novel form of power-hammer, the principal objects of the invention being to relieve the main supporting-frame from the shock incident to the fall of the hammer stock and to provide for a yielding connection between the hammer-stock and its crank-yoke."

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