Electricity: circuit makers and breakers – Special application – Running length – web or strand actuated
Patent
1976-02-10
1978-02-14
Scott, James R.
Electricity: circuit makers and breakers
Special application
Running length, web or strand actuated
200 6118, 200 6141, 200163, H01H 316, B61B 1206
Patent
active
040740943
ABSTRACT:
This electric switch structure provides within a rugged, hermetically sealed housing a set of insulated, moveable discs that may reciprocate relative to one another, the discs being interconnected and positioned by a set of parallel guide rods. One disc is held in a fixed position relative to the housing; the remaining portion of the disc set is movable from a position in which contacts on the adjacent faces of the discs are engaged to a position in which these contacts are disengaged. This movement is controlled by an external trip rod positioned to bear on the exterior of the housing, the trip rod being attached to the disc set by an interconnecting member and moveable between two stable positions, a first or extended position and a second or actuated position. Preferably the disc set includes at least three discs movable from a position in which two discs engage to a second position and which another two discs engage, the first position controlling one circuit, the second position controlling another circuit.
REFERENCES:
patent: 602767 (1898-04-01), McPherson
patent: 1873797 (1932-08-01), Turner
patent: 2441888 (1948-05-01), Lansing
patent: 2717941 (1955-09-01), Steiner
patent: 3346710 (1967-10-01), Weston et al.
patent: 3471660 (1969-10-01), Peters
patent: 3822369 (1974-07-01), Kunczynski
patent: 3842221 (1974-10-01), Dayet et al.
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