General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

BAKELITE, COPPER, PORCELAIN, ASBESTOS, AND FIBRE COMPONENTS.

Dimensions

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

Length

5.4 cm

Width

3.5 cm

Height

6.9 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

Federal

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

North America

State/Province

Unknown

Period

THIS TYPE OF SOCKET USED C. 1910- 1925, AND POSSIBLY LATER.

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 SECURE AND CONNECT A LAMP BULB WITHIN A FIXTURE.

Technical

EXAMPLE OF SWITCHED OR KEY-STYLE SOCKET, IN WHICH THE SWITCHING MECHANISM (POWER ON/OFF) IS BUILT INTO THE SOCKET, RATHER THAN THE WALL OR LAMP BASE. KEYS WERE ADDED TO LAMP SOCKETAND RECEPTACLE DESIGNS IN THE LAST DECADE OF THE 19TH C.

Area Notes

Unknown

Details

Markings

" 250 W- 250 V/ PAT'D. JULY 6, 1909/ F [within circle] " incised in socket casing. " F " within circle cast in raised print on both sides of key.

Missing

NONE.

Finish

NATURAL BRASS EXTERIOR; DULL BLACK TURN KEY

Decoration

N/A