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US Patent: 385,018
Spring-hammer for blacksmiths
Patentees:
Henry Stewart (exact or similar names) - Longmont, CO
Wellington B. Wiswall (exact or similar names) - Longmont, CO

USPTO Classifications:
72/441, 72/445

Tool Categories:
metalworking machines : forging machines : foot operated hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank L. Smith
B. L. Carr

Patent Dates:
Applied: Apr. 30, 1888
Granted: Jun. 26, 1888

Patent Pictures:
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Description:
"After the first two or three strokes of the hammer a man can, without lifting his foot from the floor, but by simply working his toes up and down as his heel rests on the floor, strike a tremendous blow, the springs by their rebound keeping the hammer in activity."

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