US Patent: 514,719 - Boring-Mill


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US Patent: 514,719

Boring-Mill

Patentee:

Charles Leon Libby (exact or similar names) - Bridgeport, Fairfield County, CT

USPTO Classifications:

408/234, 409/190, 82/122

Tool Categories:

metalworking machines : drilling and boring : vertical boring mills

Assignees:

Edward P. Bullard - Bridgeport, Fairfield County, CT

Manufacturer:

Bridgeport Machine Tool Works - Bridgeport, Fairfield County, CT

Bullard Machine Tool Co. - Bridgeport, Fairfield County, CT

Witnesses:

A. J. Tanner

M. C. Hinchcliffe

Patent Dates:
Applied:	Dec. 05, 1892
Granted:	Feb. 13, 1894

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Bridgeport Machine Tool Works
"Vintage Machinery" entry for Bullard Machine Tool Co.

Description:

Claim:

The combination in a boring mill or ma chine of like character, a properly supported crossrail, a crossrail slide horizontally movable thereon, of a taper attachment guide placed above and adjacent to said cross rail and arranged to be placed parallel or at an angle therewith, a sliding block arranged to operate in a slot in said taper attachment guide, and the tool carrying mechanism supported on the cross rail slide as shown and" also in said sliding block substantially as specified.