D. M. Steward's lava insulators used by leading electric light companies

[Trade Journal]

Publication: Electrical World

New York, NY, United States
vol. 9, no. 6, p. 72, col. 3


Lava Insulators. The D. M. Steward Manufacturing Company, of 231 and 833 State avenue, Cincinnati, O., find the demand brisker than ever for their excellent and well-known lava insulators. Wherever these insulators are used there is a minimum of risk of fire. The insulators are in use by all the leading electric light companies and are favorably commended in all quarters. The insulator, it may be noted, is waterproof as well as fireproof and does not warp.


Keywords:D. M. Steward Manufacturing Company : Lava Insulator
Researcher notes: 
Supplemental information: 
Researcher:Bob Stahr
Date completed:July 15, 2009 by: Bob Stahr;