General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

METAL, INCLUDING COPPER; CERAMIC; QUARTZ

Dimensions

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

Length

56.0 cm

Width

36.0 cm

Height

32.0 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

Cooper Hewitt

Country

United States of America

State/Province

New York

City

New York

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

Unknown

Function

TO PROVIDE LIGHT/ USED SOMETIMES FOR STREET LIGHTING BUT MAINLY FOR INDUSTRIAL & PHOTOGRAPHIC WORK

Technical

LAMP IS COMMERCIAL DEVELOPMENT OF VAPOUR LAMP INVENTED 1901 & LATER IMPROVED/ QUARTZ TUBE USED TO CONTAIN MERCURY SUSTAINS HIGHER TEMP. THAN GLASS & EFFICIENCY OF LIGHT OUTPUT THUS GREATER/ SUCCESS OF LAMP LIMITED DUE TO EMITTING UV RADIATION & INABILITY TO MAKE GAS-TIGHT SEAL BETWEEN LEAD-IN WIRES & QUARTZ DISCHARGE TUBE.

Area Notes

Unknown

Details

Markings

MFR'S PLATE 'COOPER HEWITT ELECTRIC CO./ NEW YORK, U.S.A./ PAT'D SEPT. 17 1901. JULY 18, 1904. JULY 18, 1905. DEC. 12, 1905/ FEB. 26, 1907. NOV. 26, 1907. OTHER PATENTS PENDING/ FOR Z LAMP/ TYPE 0.Z. SPEC.47012-D CYCLES/ VOLTS 200 TO 250 AMPS 3.5'/ HANDWRITTEN ON CASE 3X 1370'/ HANDWRITTEN ON LOWER RIM '11317'/ PLATE 'CAUTION DO NOT LOOK AT LIGHTED BURNER/ UNLESS THE GLASS GLOBE IS IN PLACE,/ THE UNCOVERED LIGHT IS HARMFUL TO THE EYE/ AT A DISTANCE OF LESS THAN 15 FT'

Missing

GLOBE

Finish

PROBABLY OXIDIZED BLACK CASE, SOME SPOTS OF COPPER COLOUR; SOME PTS PAINTED BLACK, SOME ARE SILVERTONE, SOME WHITE; REFLECTOR OVER QUARTZ TUBE ENAMELLED WHITE

Decoration

2 NARROW RIDGES RUN AROUND UPPER SECTION OF CASE