[Trade Journal] Publication: Western Electrician Chicago, IL, United States |
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ILLUSTRATED ELECTRICAL PATENT RECORD. Issued (United States Patent Office) December 11, 1906. · · 838,482. Insulator for Line Conductors. James M. Weed, Denver, Colo. Application filed August 10, 1905. The insulating material has in its under side an annular recess or socket for the reception of a tubular supporting pin, and in its upper side a central recess or socket for the reception of a wire-supporting pin. (See cut.) · ·
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