Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1975-03-11
1977-01-18
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
188138, 335286, H01F 708, F16D 6534
Patent
active
040042626
ABSTRACT:
An electromagnet for use in electric brakes and similar type clutches which will apply balanced friction face pressure against a rotating armature face despite the additional, externally imposed, pressures which are directed to its leading edge by tipping moments existing at its point of restraint. The electromagnet departs from conventional design in that a non-magnetic wear or friction face replaces a sufficient area of the outer magnetic pole face on the leading edge of the electromagnet to insure that the externally imposed forces on the leading edge of the electromagnet are balanced by the magnetic linkage forces existing in the rest of the electromagnet faces. Balanced friction face pressure greatly increases the performance and useful life of an electromagnet and the electric brake or clutch system which it actuates.
REFERENCES:
patent: 3476223 (1969-11-01), Hubbard
patent: 3760909 (1973-09-01), Grove
Broome Harold
Hobbs Marmaduke A.
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