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Ingenium, 1992.2497.001
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OBJECT TYPE: push-button/double/flush
DATE: 1912
ARTIFACT NUMBER: 1992.2497.001

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: porcelain cup/ synthetic push-buttons, one with steel inlay/ brass plate/ metal parts

Dimensions

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

Length: 11.4 cm
Width: 7.0 cm
Height: 5.5 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: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: North America
State/Province: Unknown
Period: Unknown
Canada: A 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.
Technical: The first patent for a push-button switch was granted to Ediswan in 1895. The single push-button switch had the disadvantage of not indicating if the switch is open or closed & has seldom been used. The two button arrangement, however, was free from this defect & enjoyed great popularity in America until the late 1920s (Ref. 2).
Area Notes: Unknown

Details

Markings: incised lettering on button reads "ESC"/ incised lettering on metal fasteners reads "10A./ 125V.", "5A./ 250V."& "UND. LAB./ INSP."/ raised lettering on underside of cup reads "PAT JULY 16/ NOV 5 1912/ PAT APPLD/ FOR"/
Missing: appears complete
Finish: unglazed white porcelain/ gold coloured metal/ black buttons
Decoration: N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Switch, after 1912, Artifact no. 1992.2497, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.2497.001/

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