[Trade Journal] Publication: Western Electrician Chicago, IL, United States |
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ILLUSTRATED ELECTRICAL PATENT RECORD. Issued June 7, 1898 · · 605,256. Insulator. Ralph D. Mershon, Colorado Springs, Colo. Application filed February 14, 1898.
An insulator for high-tension circuits having a long, tubular petticoat adjacent to the supporting pin and a short outer petticoat of much greater diameter, the edge of which is approximately the same striking distance from the cross-arm and the supporting pin.
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Keywords: | Ralph Mershon : Patent |
Researcher notes: | |
Supplemental information: | Patent: 605,256 |
Researcher: | Bob Stahr |
Date completed: | February 21, 2009 by: David Wiecek; |