US Patent: 639,888 - Turret Lathe


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US Patent: 639,888

Turret Lathe

Patentee:

Conrad M. Conradson (exact or similar names) - Madison, Dane County, WI

USPTO Classifications:

144/179, 29/36, 29/47, 29/64, 29/65, 74/813R

Tool Categories:

metalworking machines : metal lathes : turret lathes

Assignees:

American Turret Lathe Works Co. - Cincinnati, Hamilton County, OH

Manufacturer:

American Turret Lathe Works Co. - Cincinnati, Hamilton County, OH

Witnesses:

Oliver B. Kaiser

Charles F. Dolle

C. W. Mills

Patent Dates:
Applied:	Feb. 24, 1899
Granted:	Dec. 26, 1899

Patent Pictures:

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"Vintage Machinery" entry for American Turret Lathe Co.

Description:

Wood & Boyd - patent attorneys

Claim:

In a lathe employing a main spindle, a geared chuck secured thereto, a series of loose gears journaled on said spindle, a clutch journaled on the spindle between the loose gears, in combination with a back gear-shaft, loose gears journaled thereon and meshing with the gears of the main spindle, clutch and lever mechanism for clamping said gears to their shafts whereby various rates of speed for the work-chuck are obtained, substantially as specified.