[Trade Journal] Publication: Western Electrician Chicago, IL, United States |
ELECTRICAL PATENTS. Issued May 2, 1893 · · 496,652. Insulator for Telegraph Wires. Ralph G. Hemingray, Covington, Ky., and James C. Gill, Muncie, Ind. The insulator is of the ordinary kind used on telegraph poles, but is provided with a series of cleats or conical projections at its lower edge, whereby water on the insulator will flow off in drops. · · |
Keywords: | Hemingray |
Researcher notes: | "cleats" is not a typo in this instance. |
Supplemental information: | |
Researcher: | Glenn Drummond |
Date completed: | February 22, 2005 by: Glenn Drummond; |