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US Patent: 140,672
Improvement in Saw Gummers
Patentee:
William G. Blacklidge - Metamora, IN

USPTO Classifications:
76/44

Tool Categories:
woodworking machines : circular saws : annular saws

Assignees:
William G. Blacklidge - Metamora, IN
James P. Alley - Cincinnati, OH

Manufacturer:
Not known to have been produced

Witnesses:
J. Kathman
Edward Adleta

Patent Dates:
Applied: Apr. 11, 1873
Granted: Jul. 08, 1873

Patent Pictures:
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Description:
Shearing cut is made with a straight-toothed reamer by the automatic action of a screw and wedge combined. This gives the reamer an oblique motion, moving both endwise and sideways at the same time.

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