US Patent: 549,559 - Drilling-machine


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US Patent: 549,559

Drilling-machine

Patentee:

William F. Barnes (exact or similar names) - Rockford, IL

USPTO Classifications:

476/58, 74/842

Tool Categories:

metalworking machines : drilling and boring : drill presses

woodworking machines : wood drilling and boring : drill presses

Assignees:

W. F. & John Barnes Co. - Rockford, IL

Manufacturer:

W. F. & John Barnes Co. - Rockford, IL

Witnesses:

C. W. Brown

D. S. Hough

Patent Dates:
Applied:	Mar. 17, 1891
Granted:	Nov. 12, 1895

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for W. F. & John Barnes Co.

Description:

"The object of this invention is to furnish means for counterbalancing the weight of the drill-spindle, which consists of a friction-contact between the main supporting-frame and drill-spindle."