Sangamo Electric Company Gutmann Type A Wattmeter, 1899-1901
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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. Ludwig Gutmann, one of several inventive electrical engineers who designed meters to calculate power usage, developed this induction-type wattmeter. U.S. production of this meter stopped after courts ruled that it infringed on existing patents held by Westinghouse.
Artifact Details
Artifact
Wattmeter
Date Made
1899-1901
Creators
Place of Creation
Location
Not on exhibit to the public.
Object ID
00.285.106
Credit
From the Collections of The Henry Ford. Gift of General Electric.
Material
Metal
Iron (Metal)
Wire
Enamel (Fused coating)
Color
Black (Color)
Brown
Gray (Color)
Dimensions
Height: 8.5 in
Width: 7 in
Length: 8.25 in
Inscriptions
on face:
GUTMANN RECORDING WATTMETER/[...]/ DIRECT READING/ PATENTED JULY 23 '95 NOV. 15 '98/ SANGAMO ELECTRIC COMPANY/ SPIRNGFIELD, ILLINOIS, U.S.A.
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