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Edward Brown (1834-1905) was an Englishman who landed in New York in 1858, moved to Philadelphia, opened a small shop, and produced the first pyrometer of American design. He won a Centennial Medal in 1876, and a John Scott Medal from the Franklin Institute in 1897. The firm became Edward Brown & Son in 1905, and a division of Honeywell in 1934.
This is the model that Brown submitted to the U.S. Patent Office in 1872. The dial is 4-inches diameter, and graduated from 0 to 1500 by hundreds. The inscription reads "PYROMETER EDW. BROWN PHILADA."
Ref: Edward Brown, “Pyrometer,” U.S. Patent 130,894 (Aug. 27, 1872).
Edna Margaret Brown, Edward Brown, Inventor (Philadelphia, 1957).
Currently not on view
Object Name
Object Type
Patent Model
Brown, Edward
place made
United States: Pennsylvania, Philadelphia
overall: 5 7/8 in x 1 7/8 in x 5 in; 14.92885 cm x 4.76885 cm x 12.7 cm
overall: 5 7/8 in x 2 in x 5 1/4 in; 14.9225 cm x 5.08 cm x 13.335 cm
ID Number
catalog number
accession number
patent number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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