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US Patent: 501,683
Gaining-machine
Patentees:
Carl A. Johnson (exact or similar names) - Rockford, IL
Frank Johnson (exact or similar names) - Rockford, IL

USPTO Classifications:
144/27

Tool Categories:
woodworking machines : specialty woodworking machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. Behel
A. O. Behel

Patent Dates:
Applied: Mar. 01, 1893
Granted: Jul. 18, 1893

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Description:
"The object of this invention is to cut the recess or gain in which the leaf of the hinge is seated... This invention consists of a knife having a vertical movement and a combined knife and sawing having a horizontal movement of the combined knife and saw during the cutting process, a stop limiting the depth of the cut, and a system of clamps for holding the woodwork in proper position to be operated upon."

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