[Trade Journal]
Publication: Western Electrician
Chicago, IL, United States
vol. 27, no. 12, p. 193, col. 2
ILLUSTRATED ELECTRICAL PATENT RECORD.
Issued September 11, 1900.
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| No. 657,574 |
657,574. High-voltage Insulator. Alf Sinding-Larsen, Frederiksvaern, Norway. Application filed December 11, 1899.
Combined with a main-line conductor carrying alternating or pulsating current and its insulating supports are a local circuit at each support and means for heating the supports included in the local circuit. (see cut.)
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