W. B. McDonald inventor of McDonald Glass Hanger Board

[Trade Journal]

Publication: Western Electrician

Chicago, IL, United States
vol. 21, no. 8, p. 111, col. 3

BUSINESS.

To W. B. McDonald, superintendent of the People's Light and Power company, Chicago, must be given the credit of producing an arc lamp hanger board made entirely of glass, having a glass back or support, as well as glass insulating knobs. The device is known as the McDonald glass hanger board. This board can always be relied upon as a perfect insulator, and always looks bright and clean. This specialty is placed on the market by the Electric Appliance company, Chicago, which will be glad to quote prices on application.

Keywords:	Knob : McDonald Glass Hanger Board
Researcher notes:
Supplemental information:	Design Patent: 28,743 Article: 9170
Researcher:	Bob Stahr
Date completed:	February 19, 2009 by: Bob Stahr;