Electricity: circuit makers and breakers – High-potential type – Rotating and pivoted
Patent
1980-04-15
1981-09-08
Shepperd, John W.
Electricity: circuit makers and breakers
High-potential type
Rotating and pivoted
308 6R, 308 6B, 308DIG8, H01H 3132
Patent
active
042886678
ABSTRACT:
A telescoping high current disconnect switch for isolated phase bus includes a pair of axially spaced cylindrical fixed conductors insulatingly mounted within a cylindrical aluminum housing. An aluminum telescope section is coaxial with the fixed conductors and is insulatingly mounted upon a plurality of rollway pillow blocks each containing ball bearings. The pillow blocks are supported by guide rails of austenitic non-ferromagnetic stainless steel which are attached to the interior surface of the housing. The telescope section is axially movable along the guide rails to bridge the fixed conductors, such movement causing the ball bearings to cold-form grooves in the rails, whereby portions of the rails are work-hardened.
REFERENCES:
patent: 1833025 (1931-11-01), Langenberg
patent: 2229006 (1941-01-01), Rudd
patent: 2273069 (1942-02-01), Rossman
patent: 2703297 (1955-03-01), MacLeod
patent: 2813178 (1957-11-01), Pierson et al.
patent: 2889435 (1959-06-01), Albright
patent: 3553397 (1971-01-01), Schmitz
patent: 3575454 (1971-04-01), Meeker
patent: 3938854 (1976-02-01), Teramachi
Coyle Forrest E.
Farley James R.
Patel Jayant M.
Wolfe Jerome K.
Converse, Jr. Robert E.
Shepperd John W.
Westinghouse Electric Corp.
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