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US Patent: 547,197
Drop Hammer
Patentees:
Frederic C. Billings - Hartford, CT
Warren J. Belcher - Hartford, CT

USPTO Classifications:
72/439

Tool Categories:
metalworking machines : drop hammers

Assignees:
Billings & Spencer Co. - Hartford, CT

Manufacturer:
Not known to have been produced

Witnesses:
F. N. Chase
H. E. Billings
K. L. Edwards, Jr.
Fred J. Dole

Patent Dates:
Applied: Feb. 15, 1895
Granted: Oct. 01, 1895

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Billings & Spencer Co.
Description:
F. H. Richards - patent attorney

This invention relates to drop-hammers of the class in which the drop-hammer has a reciprocatory hammer or ram which is provided with a lifting-board and in which a pair of lifting-rolls is employed for engaging the lifting-board for lifting the hammer and in which shifting mechanism is employed for shifting one of said rolls relatively to the other to release the rolls from engagement with the lifting-board to allow the hammer to drop.

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