Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Contact-actuating means
Patent
1977-06-01
1979-02-13
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Contact-actuating means
335190, 74520, H01H 302, H01H 304
Patent
active
041398300
ABSTRACT:
A remotely-controllable electromagnetic switching apparatus including a housing, a contact bridge carrier disposed within the housing, and means for mechanically latching the contact bridge carrier by locking the contact bridge carrier in an operative switching position by means of a first lever member which is movable into a return-movement region of the contact bridge carrier by means of a spring force and is pivotably coupled to a second lever member. The improvement comprises the lever members comprising toggle levers which are movable into an almost fully-extended, beyond dead-center position for blocking return movement of the contact bridge carrier into the return movement region. At least one of the toggle levers is coupled to and guided by rollers which engage the housing of the switching apparatus.
REFERENCES:
patent: 2513934 (1950-07-01), Hall
patent: 2523774 (1950-09-01), Moran
patent: 3217125 (1965-11-01), Brackett
patent: 3436710 (1969-04-01), Stokes
patent: 3768052 (1973-10-01), Buhler et al.
Gnahn Gunter
Streich Georg
Broome Harold
Siemens Aktiengesellschaft
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