Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – With magneto-mechanical motive device
Patent
1986-08-11
1987-09-08
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
With magneto-mechanical motive device
335261, 335265, H01F 708
Patent
active
046927298
ABSTRACT:
A magnetic core (3) surrounded by a coil (1, 2) bears a first pole shoe (4) forming a large-surface air-gap with two zones (5a, 6a) of two armatures (5, 6) fixed to one another and disposed magnetically in parallel.
The core (3) is continued beyond the coil and at this end bears a second pole shoe (9) which together with two other zones (5c, 6c) of the armatures forms a second large-surface air-gap disposed magnetically in series with the first.
REFERENCES:
patent: 2531500 (1950-11-01), Claytor
patent: 2734153 (1956-02-01), Soreng et al.
patent: 2915681 (1959-12-01), Troy
patent: 4553121 (1985-11-01), Logie
Harris George
La Telemecanique Electrique
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