US Patent: 13,383 - Machine-drill


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US Patent: 13,383

Machine-drill

Patentees:

James Conner (exact or similar names) - Richmond, IN

Thomas Newby (exact or similar names) - Richmond, IN

USPTO Classifications:

74/841

Tool Categories:

metalworking machines : drilling and boring : drill presses

woodworking machines : wood drilling and boring : drill presses

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

John Finley

Benjamin H. Van Zant

Patent Dates:
Granted:	Aug. 07, 1855

Patent Pictures:

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Description:

Claim: "The use of the lever, vertical shaft, spring and trigger n and 8, spring z and cam, by which the action of the drill in drilling is regulated or grooved in its depth."