US Patent: 79,640 - Improvement in machines for boring wood


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US Patent: 79,640

Improvement in machines for boring wood

Patentee:

George Dryden (exact or similar names) - Worcester, MA

USPTO Classifications:

74/842

Tool Categories:

metalworking machines : drilling and boring

Assignees:

None

Manufacturer:

R. Ball & Co. - Worcester, MA

Witnesses:

A. Dadmun

James G. Arnold

Patent Dates:
Granted:	Jul. 07, 1868

Patent Pictures:

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Vintage Machinery entry for R. Ball & Co.

Description:

"My invention relates to those boring-machines used for boring for mortises and similar purposes, and consists in pivoting the mechanism that drives the auger to a plate or frame sliding on the base of the machine, and operated by a rack and pinion to adjust it for boring the different holes successively, and also in arranging a central elevating-gear permanently in mesh, with a stationary rack attached to the standard, with such form and construction of parts as to make a convenient and effective boring-machine."