Insulator Patent #369,447

[Trade Journal]

Publication: Electrical World

New York, NY, United States
vol. 10, no. 13, p. 175-176, col. 1-3


OUR ILLUSTRATED RECORD OF ELECTRICAL PATENTS.


PATENTS DATED SEPTEMBER 6, 1887.


369,447. Insulator; E. T. Greenfleld, New York. N. Y., Assignor to Greenfield & Co., of same place. Application filed March 4, 1887. An insulating block provided with a slot for carrying the conducting wire and with a plug for holding the wire in place, also with a peripheral groove to receive the hanger. The hanger consists of a ring having less than half of its body cut away and provided with a screw shank. The ring is adapted to fit in the peripheral groove of the block and allow the block to be rotated witnin it, in order to turn the plug under the ring to lock it in place and securely hold the wire. See illustration.

Illustration

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Keywords:Insulator : Patent
Researcher notes: 
Supplemental information: Patent: 369,447
Researcher:Bob Stahr
Date completed:July 16, 2009 by: Bob Stahr;