Direct current electromagnet

Details Direct current electromagnet Direct current electromagnet

1982-11-26

1984-03-27

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335281, H01F 700

Patent

active

044397518

ABSTRACT:
An actuating magnet, particularly a direct current electromagnet, has a cylindrical magnetically permeable shell or cover made from a rectangular sheet of metal bent into a square cylinder, the edges of the sheet forming a gap. Pole plates on the ends of the shell have recesses on their edges to receive projections on the shell. The pole plates have recesses in the corners, leaving the corners uncovered to receive fastening screws.

REFERENCES:
patent: 1556363 (1925-06-01), Smith
patent: 3098135 (1963-07-01), Farmer
patent: 3295079 (1966-12-01), Brown
patent: 3451022 (1969-06-01), Krautwald et al.
patent: 3593240 (1971-07-01), Garczyski
patent: 4186363 (1980-01-01), Schmidt et al.

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