Patents; Converse insulator

[Trade Journal]

Publication: American Electrician

New York, NY, United States
vol. 15, no. 9, p. 452, col. 1-2


SOME RECENT ELECTRICAL PATENTS

 

High-Tension Insulator Figs. 1 and 2 herewith, illustrate a method of construction for insulators to be used on lines of very high voltage, which has been patented by Vernon G. Converse. The fundamental object of the invention, of course, is to secure maximum insulation between the pin and that part of the insulator to which the transmission wire is attached; the next object is to facilitate the manufacture of high- tension insulators, which are necessarily of large diameter. The inventor uses a sheath, 2, which is screwed to the pin, 3, in the usual manner, and. almost entirely shrouds it; because of the difficulty of manufacturing large insulators in a single piece, the bell of the insulator is made in a separate piece from the sheath and attached to the latter preferably by means of a second and entirely enclosed pin, 6, Fig. 1. The two sections of the insulator, 1 and 2, are kept out of contact by means of a washer, 7, of felt or other soft material, the object of which is to prevent grinding between the two pieces when the bell is screwed into place. In Fig. 2 substantially the same construction is shown, except that the two halves of the insulator are held together by means of a sleeve, 17, instead of the internal pin, 6, shown in Fig. 1. This sleeve is made these constructions, it will be noted, interpose two sections of solid insulation between the end of the main pin, 3, and that point of the bell where the wire is located, as well as lengthening the air distance from the wire to the pin by enclosing the shank of the pin down to within a short distance of the crossarm. Patent 735,212.

 

FIG. 1 AND 2.
Fig. 1 and 2.

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Keywords:Hemingray
Researcher notes: 
Supplemental information: Patent: 735,212
Researcher:Bob Stahr
Date completed:March 29, 2009 by: Bob Stahr;