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Ingenium, 1992.2492.001
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OBJECT TYPE: canopy/tumbler/quick make & break
DATE: 1950
ARTIFACT NUMBER: 1992.2492.001

MANUFACTURER: Arrow-Hart & Hegeman
MODEL: Unknown
LOCATION: United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: bakelite casing/ metal switch handle & parts/ fabric covered wire

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 3.2 cm
Width: 1.8 cm
Height: 5.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Energy-electric
Category: User site
Sub-Category: N/A

Manufacturer

AKA: Arrow Hart
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: North America
State/Province: Unknown
Period: mid 20th century
Canada: An American made switch of a type used in Canada.. Part of a large & varied collection of over 7500 electrical items acquired & documented by Ontario Hydro in the 1960s. The collection was thought to be the largest & most comprehensive of its kind in Canada & was donated to the National Museum of Science & Technology in 1992.
Function: An electrical wiring device used to make or break a connection in an electrical circuit, specifically in a small motor.
Technical: The tumbler switch was one of the most characteristic British contributions to wiring installation practice. Coming into regular use around 1890, it showed a radical departure from the influence of the gas tap. In quick make & break switches, a dolly & contacts were connected by a spring which changed its direction as the dolly moved over top dead centre, usually with an initial positive drive (Ref. 3).
Area Notes: Unknown

Details

Markings: incised lettering on metal plate reads , "ARROW H&H/ U.S.A. ON", "UND. LAB. INSP.", "3A./ 250V." & "6A./ 125V."
Missing: appears complete
Finish: black casing/ plates switch handle, metal parts/ yellow wire covering
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Arrow-Hart & Hegeman, Switch, circa 1950, Artifact no. 1992.2492, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.2492.001/

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