General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

.1 METAL, INCLUDING FERROUS METAL & COPPER; CERAMIC/.2 GLASS

Dimensions

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

Length

79.5 cm

Width

32.0 cm

Height

27.5 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

HELIOS

Country

United States of America

State/Province

Pennsylvania

City

Philadelphia

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/ PROBABLY USED MAINLY FOR STREET LIGHTING, COULD ALSO BE USED FOR LIGHTING LARGE INTERIOR SPACES

Technical

FLAME ARC LAMPS INTRO. 1903- IMPROVEMENTS ADDED LATER/ ENCLOSED FLAME ARC LAMP INTRO. C.1910 WHICH EXTENDED CARBON LIFE FROM APPROX. 10 TO 100 HRS/ INTRO. OF THE FLAME ARC LAMP WITH ITS HIGH EFFICIENCY & IMPROVED QUALITY OF LIGHT MADE ARCLIGHTING ONCE AGAIN MORE POPULAR THAN GAS LIGHTING

Area Notes

Unknown

Details

Markings

.1 PLATE 'MANUFACTURED BY/ HELIOS MANUFACTURING CO./ PHILADELPHIA, PA., U.S.A./ PATENT APPLIED FOR/ TYPE 7236B/ AMPERES 5 VOLTS 110'/ PLATE INSIDE LAMP 'IMPORTANT NOTICE/ CENTER TUBE AND SIDE RODS/ MUST BE WIPED WITH A DRY/ CLOTH. ECONOMIZER AND/ CARBON BUSHINGS BRUSHED/ OUT AT EACH TRIMMING.'

Missing

N/A

Finish

CASE IS BLACK WITH COPPER COLOUR SPOTS/ TOP PAINTED BLACK, WHITE INSULATORS

Decoration

.1 CASE HAS SEVERAL SLIGHTLY RAISED NARROW BANDS AROUND IT