US Patent: 871,904 - Shaft-oscillator


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 871,904

Shaft-oscillator

Patentee:

Edwin C. Wright (exact or similar names) - Newport, KY

USPTO Classifications:

310/229

Tool Categories:

electrical devices : electric motors

Assignees:

Allis-Chalmers Co. - Milwaukee, WI

Bullock Electric Mfg. Co. - Norwood, OH

Manufacturer:

Allis-Chalmers Co. - Milwaukee, WI

Witnesses:

George B. Schley

Fred J. Kinsey

Patent Dates:
Applied:	Apr. 20, 1907
Granted:	Nov. 26, 1907

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Allis-Chalmers Mfg. Co.
Vintage Machinery entry for Bullock Electric Mfg. Co.

Description:

"My invention relates to shaft oscillators or end-play devices. It is particularly adapted for use in connection with dynamo-electric machines for the purpose of preventing grooving and roughening of the commutator."