General Information

Serial #

N/A

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

.1 METAL, WITH CERAMIC & ASBESTOS INSULATORS, FIBRE COVERED WIRES/.2 GLASS & METAL/.3 GLASS

Dimensions

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

Length

57.0 cm

Width

42.5 cm

Height

42.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Lighting Technology

Category

Lighting devices

Sub-Category

N/A

Manufacturer

AKA

General Electric

Country

United States of America

State/Province

New York

City

Schenectady

Context

Country

Worldwide

State/Province

Unknown

Period

COMMERCIAL ARC LIGHTING FIRST USED 1870'S/ DECLINED AFTER C.1910/ SELDOM USED FOR SPACE LIGHTING BY 1940'S

Canada

Unknown

Function

TO PROVIDE LIGHT/ USED FOR STREET LIGHTING & TO LIGHT OTHER LARGE AREAS

Technical

THE CLUTCH DOES NOT ACT DIRECTLY ON THE ELECTRODES IN THIS LAMP, BUT WORKS ON THE INNER MACHINED SURFACE OFTHE ROLLER BEARING OVER WHICH THE CHAIN WHICH CONNECTS THE UPPER ELECTRODE HOLDER & THE LOWER ELECTRODE HOLDER ROD RUNS, THUS MAKING THE CLUTCH INDEPENDENT OF THE SIZE OF THE ELECTRODE

Area Notes

Unknown

Details

Markings

.1 RAISED ON CASE 'FLAME ARC LAMP/ GENERAL ELECTRIC CO./ SCHENECTADY, N.Y. U.S.A.'/ STICKER, PARTLY TORN OFF HANDWRITTEN '10'/ DECAL 'PROPERTY OF/ STATE UNIVERSITY OF IOWA/ 977'/.002 globe Macbeth 11553

Missing

GLOBE HOLDER/ was found, August 2017-OH2674

Finish

.1 CASE HAS BLACK FINISH, GLAZED WHITE INSULATORS AT TOP/ INSIDE OF CONDENSING CHAMBER APPEARS GREENISH IN SOME AREAS, WHITE POWDERY COATING ON SURFACES/.2 OPAQUE, MILKY COLOURED GLASS, COLLAR APPEARS TO BE PAINTED BLACK/.3 CLEAR, COLOURLESS

Decoration

.1 CASE HAS 3 SLIGHTLY RAISED RIDGES RUNNING AROUND IT & 1 SLIGHTLY INDENTED RING RUNNING AROUND IT