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Gallenkamp Colorimeter

Gallenkamp Colorimeter

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Usage conditions apply
A wedge colorimeter contains two hollow wedges, one holding the sample and one holding the standard. By moving the wedges up and down, one can vary the depth of solution through which light passes. W. Gallenkamp obtained a German patent (#62560) for the basic form in 1891, and Hans Heele in Berlin made several instruments of this sort. Richards & Co. in New York offered a “Gallenkamp-Heele’s Colorimeter” in 1896, noting that it had a “direct scale of percentage” that permitted very accurate readings, was “especially adapted for sugar factories, dyeing establishments, etc.,” and cost $85.
The Department of Chemistry at Yale University donated this example to the Smithsonian in 1960. The “D.R.G.M. Hans Heele, Berlin” inscription indicates that it was made before 1923 when Heele’s firm was bought by Bamberg.
Ref: Hans Heele, Heele-Gallenkamp Kolorimeter (Berlin, n.d.).
Currently not on view
Object Name
Hans Heele
place made
Germany: Berlin, Berlin
overall: 18 in; 45.72 cm
overall: 10 7/8 in x 8 in x 7 in; 27.6225 cm x 20.32 cm x 17.78 cm
ID Number
catalog number
accession number
Credit Line
Yale University Department of Chemistry
See more items in
Medicine and Science: Chemistry
Measuring & Mapping
Data Source
National Museum of American History
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