Improvements in or relating to electrical-discharge devices for the protection of transmission lines and the like from high voltage surges

摘要

367,350. Fuses. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Torok, J. J. ; 615, Mill Street, Wilkinsburg, Pennsylvania, U.S.A.) Nov. 13, 1930, No. 34184. Convention date, Nov. 13, 1929. [Class 38 (i).] By having an annular recess 44 in the outer wall of the inner tube 38 of a fuse having concentric tubes 38, 39 which recess communicates with the interior and with the air through apertures 45, 46 in the two tubes, pressure can be relieved when the fuse blows.