arc lamp carbons
Datecirca 1948
Inventory Number2002-1-0034c
ClassificationArc Lamp Carbons
Subject
Maker
National Carbon Company Inc.
founded 1886
Maker
Union Carbide and Carbon Corporation
1917 - 1957
Owner
Arthur D. Little, Inc.
founded 1909
Cultural Region
Place of Origin
DimensionsEach box: 4.2 × 16.3 × 7.5 cm (1 5/8 × 6 7/16 × 2 15/16 in.)
Material
DescriptionTwo boxes of 6.4 mm diameter, 6" long "cored" carbon rods for use in carbon arc lamps. The "core" has probably a rare earth additive to increase light output and/or modify the spectrum. Cat. No. L8133. Two rectangular boxes.
Signedon box: NATIONAL CARBON COMPANY / A DIVISION OF / UNION CARBIDE AND CARBON CORPORATION / NEW YORK, N.Y. MADE IN U.S.A.
Inscribedon package: NATIONAL / TRADE-MARK / ARC CARBONS
on each rod: NATIONAL / TRADE-MARKS / MICRO PROJECTOR / made in U. S. A.
on each rod: 10
Union Carbide and Carbon Corporation
Date: 1925-1960
Object number: 1997-1-0067a
Ernst Leitz (company)
Date: 1940-1950
Accessories: boxes of arc carbons (3)
Object number: 1997-1-0669
Department of Physics, Harvard University
Date: mid 19th-late 19th Century
Object number: 0166
Bausch & Lomb Optical Company
Date: 1950-1960
Object number: 1997-1-0797
Bausch & Lomb Optical Company
Date: 1950-1960
Object number: 2007-1-0065
Louis Jules Duboscq
Date: 1860-1879, 1882-1885
Object number: 1996-1-0669
See also/See also
