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electrical heating element

electrical heating element

Date: circa 1920
Inventory Number: 2008-1-0028
Classification: Laboratory Equipment
Subject:
heat, laboratory equipment,
Maker: Edwin L. Wiegand Company (1917 - 1968)
Cultural Region:
United States,
Place of Origin:
Pittsburgh,
Dimensions:
14.5 x 16.5 x 19.5 cm (5 11/16 x 6 1/2 x 7 11/16 in.)
Material:
textile, plastic, metal,
Description:
A black metal stand with three legs and two platforms. On the upper platform it holds a rusted metal cylinder, and on the platform below is a knob with settings "OFF", "LOW", "MED", "HIGH". It has an electrical cord insulated with fabric.
Signedon plaque, base: EDWIN L. WIEGAND CO.
FunctionAn early version of an electrical stove.

From the Chromalox company website: "In 1915 Edwin L. Wiegand, a young, brilliant, self-taught engineer was granted his first patent for inventing a resistance heating element embedded in an insulating refractory enclosed in a metal sheath".

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The Collection of Historical Scientific Instruments
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