Sangamo Electric Company Type C Wattmeter, 1904-1905
01
Artifact Overview
In the late 1800s, companies that supplied electricity to consumers needed a way to measure how much customers used--and then charge them accordingly. Induction-type wattmeters proved reliable and would become the industry standard, but until 1910 Westinghouse held the patents. Sangamo Electric Company, which had not been granted a license from Westinghouse, produced this mercury-motor alternative.
Artifact Details
Artifact
Wattmeter
Date Made
1904-1905
Creators
Place of Creation
Location
Not on exhibit to the public.
Object ID
00.285.129
Credit
From the Collections of The Henry Ford. Gift of General Electric.
Material
Metal
Color
Silver (Color)
White (Color)
Black (Color)
Dimensions
Height: 8.25 in
Width: 7 in
Length: 4.5 in
Inscriptions
on readout:
SANGAMO ELECTRIC COMPANY/ DIRECT READING/ PATENTED/ SPRINGFIELD, ILLINOIS, U.S.A.
on plate:
SANGAMO/ DIRECT CURRENT METER/ VOLTS 115 AMPERES 10
on terminal box:
NO 50283/ IN SHUNT/ OUT
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