Spectrograph

Description:

Littrow-type spectrograph with a quartz lens, a quartz prism, a photographic plate, and a “Adam Hilger LTD. London” inscription. Hilger introduced the form in 1908, and was soon selling examples to academic and industrial laboratories around the world. The American Brass Company, then the largest brass manufacturer in the United States, bought this example in 1913, and used it “to check the purity of the copper and zinc that went into their products, and to search out the reasons for variations in their properties that could not be accounted for by ordinary chemical analysis.”

Ref. Adam Hilger Ltd., Spectrographs (London, 1912), p. E2.

Charles C. Nitchie, “The Earliest Industrial Spectrographic Installation in the United States,” Applied Spectroscopy 5 (1951): 3-4.

W. H. Bassett and C. H. Davis, “Spectrum Analysis in an Industrial Laboratory,” Transactions of the Institution of Mining and Metallurgical Engineers 68 (1923): 662-669.

Date Made: 1913

Maker: Adam Hilger, Ltd.

Location: Currently not on view

Place Made: United Kingdom: England, London

Subject: Science & Scientific Instruments

Subject:

See more items in: Medicine and Science: Physical Sciences

Exhibition:

Exhibition Location:

Credit Line: Anaconda American Brass Company

Data Source: National Museum of American History

Id Number: PH.322453Catalog Number: 322453Accession Number: 248008

Object Name: spectrograph

Measurements: overall: 7 in x 7 1/2 in x 79 in; 17.78 cm x 19.05 cm x 200.66 cmoverall: 20 in x 84 1/4 in x 20 1/2 in; 50.8 cm x 213.995 cm x 52.07 cm

Guid: http://n2t.net/ark:/65665/ng49ca746ae-2689-704b-e053-15f76fa0b4fa

Record Id: nmah_1464494

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