Electrical appliances of the present day; being a report on the Paris Electrical Exhibition of 1881 (1884)
Heap, D. P. (David Porter), b. 1843 · New York, D. Van Nostrand · leaf 105
etween opposite poles of the two electro-magnets. The induction is caused by the continual displacement of the poles on the two circular armatures, which thus forms two circular magnets revolving in front of the fixed poles of the electro-magnet, the sutie as in most other machines. The exterior… … Fia. 101. This motor was not shown at the Exhibition, but a> it makes an int. r- •esting addition to the subject, and is quite peculiar in form, it is thought worth while to deserilie it. Its working de_ pends on the attraction and repulsion of a jiermanent and moving electro-magnet, and of a fixed…
International Electrical Congress, Paris, 1881
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