Cutout

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Ingenium, 1992.2732.001
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OBJECT TYPE
switched/knife/double pole
DATE
1909
ARTIFACT NUMBER
1992.2732.001
MANUFACTURER
Trumbull Electric Mfg. Co.
MODEL
701-721
LOCATION
Unknown

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
porcelain shell/ copper/ bakelite?/ wax/

Dimensions

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

Length
13.2 cm
Width
8.4 cm
Height
8.2 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
Trumbull
Country
Unknown
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Unknown
Period
early 20th century
Canada
An example of a fuse cutout of a type used in Canada. Part of a large and varied collection of over 7500 electrical items acquired and documented by Ontario Hydro in the1960s. The collection was thought to be the largest and most comprehensive of its kind in Canada and was donated to the National Museum of Science and Technology in 1992.
Function
An electrical device which interrupts the flow of electrical current through a piece of apparatus or equipment.
Technical
In the late 1880s the knife switch was improved and provisions made for its use in fusing. They were intended to be placed as near as possible to the point where the wires entered the building and arranged to cut off the entire current. Double pole switches were preferable to single pole because they disconnected the part of the circuit that was out of use. During the period 1900 to 1909, a knife switch and fuse plugs were often incorporated into one unit, for interior use. They were usually in a box but were also built into switch and fuse panels for larger installations (Refs. 2-4).
Area Notes
Unknown

Details

Markings
raised lettering on top reads "30 AMP. 125 V./ T[logo]/ T.E.M. Co."/ raised lettering on underside reads "MAR. 09" and "CAT.NO.701-721"
Missing
4 screws
Finish
glazed white porcelain/ black synthetic/ brass and copper coloured metal
Decoration
N/A

CITE THIS OBJECT

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

Trumbull Electric Mfg. Co., Cutout, after 1909, Artifact no. 1992.2732, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.2732.001/

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