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US Patent: 619,501
Milling-machine
Patentee:
James Charles Potter - Pawtucket, RI

USPTO Classifications:
409/212, 409/213

Tool Categories:
metalworking machines : milling machines

Assignees:
Howard & Bullough American Machine Co., Ltd. - Pawtucket, RI

Manufacturer:
Not known to have been produced

Witnesses:
R. J. Davis
E. R. Richardson

Patent Dates:
Applied: Oct. 25, 1897
Granted: Feb. 14, 1899

Patent Pictures:
USPTO pdf tiff
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Description:
This machine is specialized for "fluting or longitudinally grooving the drawing-rolls for spinning-machines", several rolls at a time.

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