US Patent: 283,376 - Machine for turning pipe-flanges


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US Patent: 283,376

Machine for turning pipe-flanges

Patentee:

Zebulon Erastus Coffin (exact or similar names) - Newton, MA

USPTO Classifications:

82/117, 82/140, 82/142

Tool Categories:

metalworking machines : metal lathes

Assignees:

None

Manufacturer:

Z. E. Coffin - Boston, MA

Witnesses:

D. N. B. Coffin

John H. Stevens

Patent Dates:
Applied:	Aug. 01, 1881
Granted:	Aug. 21, 1883

Patent Pictures:

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Vintage Machinery entry for Z. E. Coffin

Description:

"In ordinary machines for this purpose it is not practicable to face the flanges at both ends of the pipe at the same time and operation. The nature of my improvements and invention relates to... simultaneous facing of both ends or flanges of the pipe..."