General Electric type MP direct current motor

Description (Brief):

Nameplate reads: "Type MP no. 2720; Class 4-4.5; Form 1050; Amp. 36; Volts 120; HP 5; Speed 960. Pat. 1/13/80; 8/2/81; 10/82; 3/4/90; 10/14/90; 8/18/82; 7/11/83; 12/25/88; 12/2/90; 11/14/93." Circular frame houses four field electromagnets. Rotating central armature is of the drum type with segmented commutator on one end of shaft. Four sets of carbon brushes are used in a rocker arm assembly which permits changing brush positions by means of pulley wheels. Appears similar to figure 62, MacLaren, Rise of the Electrical Industry in 19th Century, page 92.

Date Made: ca 1894

Maker: General Electric Company

Location: Currently not on view

See more items in: Work and Industry: Electricity


Exhibition Location:

Credit Line: from The U. S. Capitol thru J. George Stewart

Data Source: National Museum of American History

Id Number: EM.319206Catalog Number: 319206Accession Number: 235994Serial Number: 2720

Object Name: motorelectric motor

Measurements: overall: 23 in x 27 in x 34 in; 58.42 cm x 68.58 cm x 86.36 cm


Record Id: nmah_1313363

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