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1992.2490.001
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- OBJECT TYPE
- canopy/tumbler/quick make & break
- DATE
- 1950
- ARTIFACT NUMBER
- 1992.2490.001
- MANUFACTURER
- Cutler-Hammer
- MODEL
- AN/3021-1B
- 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 with synthetic? insert in tip
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 2.9 cm
- Width
- 1.6 cm
- Height
- 5.6 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
- Cutler Hammer
- 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"CH [LOGO]" & MADE IN U.S.A.", "AN/ 3021-1B", "ON OFF ON"
- Missing
- appears complete
- Finish
- black casing/ metallic parts
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Cutler-Hammer, Switch, circa 1950, Artifact no. 1992.2490, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.2490.001/
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