H - Electricity – 01 – H
Patent
H - Electricity
01
H
347/1, 306/354
H01H 9/02 (2006.01) H02B 1/30 (2006.01) H02B 1/01 (2006.01)
Patent
CA 1296376
13 52,584 ABSTRACT OF THE DISCLOSURE An enclosure structure for housing switchgear apparatus (such as icrcuit breakers) is fabricated from a pair of sheet metal panels that are held in precisely- spaced upstanding relationship by a plurality of metal cross-struts of U-shaped cross-section which mechanically interlock with apertured portions of the panels and are held in such position by triangular-shaped metal gussets which overlap and are bolted to adjacent portions of the cross-struts and panels. The cross-struts are provided with longitudinally protruding tangs at each end that are slip-fitted into and interlock with slot apertures in the panels. The width dimension of the finished enclosure structure is precisely controlled by positioning tabs on the ends of the cross-struts that are offset from the associated tangs and are drawn into abutting relationship with the inner surfaces of the respective panels when the structure is bolted together. Construction and assembly of the enclosure structure is accordingly achieved without the expensive tooling, jigs and welding operations heretofore required to manufacture such structures. .
528142
Davies Norman
Filson Allen Glenn
Petrisko John Dennis
Wobrak Robert Elmer
Riches Mckenzie & Herbert Llp
Westinghouse Electric Corporation
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