Core for an electromagnet having shading coils cast in situ

Details Core for an electromagnet having shading coils cast in situ Core for an electromagnet having shading coils cast in situ

1975-11-19

1977-06-14

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

310172, H01F 710, H01F 712

Patent

active

040300560

ABSTRACT:
A laminated core for an A.C. electromagnet comprising its own die for the casting of shading coils therein. Retention grooves formed across the laminations and retention slots formed in side plates provide a continuous path for the injection of molten metal therein, thereby producing a closed-loop shading coil when solidified. Also disclosed is a method for making a core having a shading coil cast in situ.

REFERENCES:
patent: 2456394 (1948-12-01), Fisher
patent: 2516603 (1950-07-01), Soreng et al.
patent: 3535568 (1970-10-01), Haverkamp
Electro Magnetic Switches, by N. Togami, Denki University Press, Tokyo, Jan. 15, 1962.

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