[Trade Journal]
Publication: Western Electrician
Chicago, IL, United States
vol. 41, no. 17, p. 345, col. 1
ILLUSTRATED ELECTRICAL PATENT RECORD.
Issued (United States Patent Office) October 15, 1907.
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| No. 868,122. — Insulator |
868,122. Electric Insulator. Francis J. Poinan, Rochester, N. Y. Application filed July 30, 1906.
This insulator is made in several parts. The lower part is of glass and has a sleeve and head fitting over the pin, and flaring conical petticoat. The top of the insulator is of different material and is made in three parts cemented together. (See cut.)
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