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Ingenium, 1992.2329.001
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OBJECT TYPE: TUMBLER/TOGGLE/SURFACE/QUICK MAKE AND BREAK
DATE: 1919
ARTIFACT NUMBER: 1992.2329.001

MANUFACTURER: Crabtree
MODEL: Unknown
LOCATION: England

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: PORCELAIN BASE; SYNTHETIC CAP AND TOGGLE.

Dimensions

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

Length: 5.0 cm
Width: 5.0 cm
Height: 3.6 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: Crabtree
Country: England
State/Province: Unknown
City: Unknown

Context

Country: United Kingdom
State/Province: Unknown
Period: THIS TYPE OF SWITCH PRESUMABLY USED AFTER 1919.
Canada: PART OF A LARGE & VARIED COLLECTION OF ELECTRICAL ITEMS ACQUIRED & DOCUMENTED BY ONTARIO HYDRO IN THE 1960S. THIS COLLECTION CONSISTS OF OVER 7500 ARTIFACTS, AND IS THOUGHT TO BE THE LARGEST & MOST COMPREHENSIVE IN CANADA. IT WAS DONATED IN ITS ENTIRETY TO THE NATIONAL MUSEUM OF SCIENCE & TECHNOLOGY IN 1992.
Function: TO MAKE OR BREAK A CONNECTION IN AN ELECTRICAL CIRCUIT.
Technical: THE TUMBLER SWITCH CAME INTO REGULAR USE C. 1891, AND QUICKLY SUPERCEDED ALL OTHER MOVEMENTS. THE J.A. CRABTREE CO. WAS FOUNDED IN 1919, AND BECAME VERY SUCCESSFUL WITHIN 10 YEARS, SPECIALIZING IN MFG TUMBLER SWITCHES. THEIR FIRST SWITCH NOT ONLY SET A FASHION FOR QUICK MAKE-AND-BREAK SWITCHES, BUT THEY RAPIDLY TURNED OUT MORE SMALL BRANCH SWITCHES THAN ANY OTHER COMPETITOR. (REF. 1)
Area Notes: Unknown

Details

Markings: "BRITISH MAKE/ CRABTREE/ REG NO 734537/8 / PATENT/ C1500/ [illegible]/ 574415/ VITREOUS/ 104" cast in raised print on base.
Missing: NONE.
Finish: WHITE CERAMIC BASE; DARK BROWN/BLACK CAP AND TOGGLE.
Decoration: N/A

CITE THIS OBJECT

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

Crabtree, Switch, after 1919, Artifact no. 1992.2329, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1992.2329.001/

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