Sangamo Electric Company Type F Wattmeter, circa 1910
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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
circa 1910
Creators
Place of Creation
Location
Not on exhibit to the public.
Object ID
58.95.15
Credit
From the Collections of The Henry Ford. Gift of Edwin M. Parre.
Material
Metal
Glass (Material)
Color
Black (Color)
White (Color)
Dimensions
Height: 9 in
Width: 6.75 in
Length: 5.25 in
Inscriptions
on readout:
KILOWATT HOURS
on plate:
SANGAMO INTEGRATING WATTMETER/ ALTERNATING CURRENT TYPE F/ VOLTS 110 AMPS. 5 CYCLES 40/140/ SANGAMO ELECTRIC COMPANY/ SPRINGFIELD, ILLINOIS
on plate at bottom:
NO 112830
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