Electricity: circuit makers and breakers – Special application
Patent
1984-04-06
1985-08-06
Scott, J. R.
Electricity: circuit makers and breakers
Special application
200 6145R, 200 615, H01H 3514
Patent
active
045337993
ABSTRACT:
A switch is provided comprising an insulating case supporting two conducting terminals, and a removable conducting rod coming to bear against the terminals so as to establish electric contact. The rod is held in abutment against a portion of a case and against the terminals by a retaining disk urged by a spring and operable by means of a resetting lever. Auxiliary electric conductors, formed from spring wires, comprise a helical part held in place by the screw shaped terminals and a rectilinear part bearing resiliently against the rod. The auxiliary electric conductors remain in contact with the rod during its reversible resilient travel so as to maintain the electric contact until definite release of the rod. Definite release occurs when the rod exceeds its reversible resilient travel and escapes the case and the retaining disk. The switch is effective to break an electrical circuit in the presence of frost and vibration such as to provide safety on cable transporting pylons.
REFERENCES:
patent: 4042797 (1977-08-01), De Araujo et al.
Research Disclosure, "Electrical Switch", C. F. Pickering, Feb. 1979, vol. 173, p. 90.
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