Patent record; Patent # 689,218

[Trade Journal]

Publication: Western Electrician

Chicago, IL, United States
vol. 29, no. 26, p. 427-428, col. 3


Issued (United States Patent Office) December 17, 1901.


NO. 689,218
No. 689,218


689,218. Electrical Insulator. Albert F. Parks, Brooklyn, N. Y., assignor to Lewis B. Stillwell, New York, N. Y. Application filed April 8, 1901.

A support for the insulator consists of a threaded pin of wood or other soft material and receives the insulator upon one end. An enlargement is provided upon the pin against which a portion of the insulator abuts, and a metallic socket receives the other end of the pin (See cut.)


Researcher notes: 
Supplemental information: Patent: 689,218
Researcher:Bob Stahr
Date completed:February 18, 2009 by: Bob Stahr;