US Patent: 844,384 - Electric motor


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US Patent: 844,384

Electric motor

Patentees:

Charles R. Meston (exact or similar names) - St. Louis, MO

Herbert I. Finch (exact or similar names) - St. Louis, MO

USPTO Classifications:

192/105A, 310/78, 318/779, 477/14, 477/177

Tool Categories:

electrical devices : electric motors : induction motors : repulsion start induction run motors

Assignees:

Emerson Electric Mfg. Co. - St. Louis, MO

Manufacturer:

Emerson Electric Mfg. Co. - St. Louis, MO

Witnesses:

F. R. Cornwell

George Bakewell

Patent Dates:
Applied:	Apr. 11, 1906
Granted:	Feb. 19, 1907

Patent Pictures:

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

Description:

"This invention relates to a new and useful improvement in electric motors, particularly alternating-current motors, wherein there are employed starting-coils through which the current is directed when the motor is started, said coils when the motor attains speed being automatically cut out. When the armature attains speed, said armature automatically throws into operative position a clutch mechanism whereby the armature becomes coupled to the shaft."