Balance

Description
This is an example of Troemner’s Analytical Balance No. 10 with aluminum beam, and wooden case with glass sides. The inscription on the ivory scale reads “MADE BY / HENRY TROEMNER / FOR / ARTHUR H. THOMAS CO. / PHILA.”
Arthur H. Thomas described this, in 1921, as “a world-famous balance of a construction original with Henry Troemner, Philadelphia, on designs suggested by Mr. A. A. Blair, and for twenty-five years perhaps the most widely used high-grade analytical balance in many industrial laboratories, particularly in the iron and steel industry. From the standpoint of sensitivity, simple construction and durability, we recommend this balance for continuous and precise analytical work.”
A paper label, under the base at front, reads “J. RUSSEL MARBLE & CO., 18-20 Poster, St. WORCESTER, MASS.” This label is also marked: “This balance is the personal property of JOHN PUTNAM MARBLE purchased 11/5/1935.” John Putnam Marble (1897-1955) was a chemist with a Ph.D. from Harvard University, who worked with the Committee for the Determination of Geologic Time, of the National Research Council. He was also an Associate in Mineralogy of the Smithsonian Institution.
Ref: Arthur H. Thomas, Laboratory Apparatus and Reagents (Philadelphia, 1921), p. 50.
Location
Currently not on view
Date made
ca. 1935
date made
around 1935
purchased/used by
Marble, John Putnam
retailer
J. Russel Marble & Co.
maker
Henry Troemner
place made
United States: Pennsylvania, Philadelphia
Measurements
each pan: 77 mm; x 3 1/16 in
beam: 178 mm; 7 in
overall: 50 cm x 49.3 cm x 31.5 cm; 19 11/16 in x 19 7/16 in x 12 3/8 in
ID Number
CH.316648
catalog number
316648
accession number
206607
Credit Line
Bequest of Dr. John Putnam Marble
subject
Weights & Measures
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History, Kenneth E. Behring Center

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