"To Amuse and Inform"
"To Amuse and Inform" |
 The
first commercial electrical lighting installation is generally accepted to
have been done by Edison Electric in May 1880. Adopting technology
from the telegraph industry, installers of these early electrical systems
were literally writing "the book" on how to wire homes and
businesses. In these early days, they used wires whose conductors
were insulated by cotton impregnated with paraffin. To further
compound the safety problem, these wires were often stapled or affixed to
wooden cleats and run exposed from source to load or buried inside of
plaster walls. As a mechanical safety feature, wooden mouldings were
developed and stayed in use until the 1920's.
The following catalog page comes from the 1905 edition of the Pettingell-Andrews Company which became part of General Electric in 1927. Click on it for a larger image. |
ŠNovember, 2007 Tradeslang - Page Displayed