Electrical control device and methods of adjusting and operating

Details Electrical control device and methods of adjusting and operating Electrical control device and methods of adjusting and operating

1975-05-27

1977-02-15

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335 42, 335176, H01H 6901

Patent

active

040084493

ABSTRACT:
An electrical control device has an electromagnet, and means is adapted for attraction from a generally at-rest position through an air gap into magnetic holding engagement with the electromagnet upon its energization. In combination with the device, there is provided means for adjusting the attraction means toward a selected at-rest position thereof and also means for mounting the adjusting means so that it is rotatable to drive the attraction means toward the selected at-rest position and conjointly linearly movable in a direction generally away from its driving engagement with the attraction means. The adjusting means is conjointly rotatably and linearly movable in response to an applied adjusting force thereon to drive the attraction means toward the selected at-rest position with respect to the electromagnet to adjustably alter the air gap therebetween.
Another electrical control device, a method of adjusting an air gap in an electrical control device, and a method of operating adjusting means for an electrical control device are also disclosed.

REFERENCES:
patent: 2064631 (1936-12-01), Schmitt
patent: 2728033 (1955-12-01), Robinson et al.
patent: 2831934 (1958-04-01), Moran
patent: 3201659 (1965-08-01), Poulton, Jr. et al.

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