Tripod Head

Tripod Head

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Description
William Gurley, a mathematical instrument maker in Troy, New York, obtained a patent for a tripod head for surveying instruments, in 1878. This is the model he submitted with his patent application.
William Gurley, “Tripod-Head for Surveying Instruments,” U.S. Patent 209,562 (Nov. 5, 1878).
Location
Currently not on view
Object Name
tripod head
Object Type
Patent Model
maker
W. & L. E. Gurley
place made
United States: New York, Troy
Measurements
overall: 4 1/2 in x 4 1/2 in x 3 in; 11.43 cm x 11.43 cm x 7.62 cm
overall: 3 in x 4 1/2 in x 4 1/2 in; 7.62 cm x 11.43 cm x 11.43 cm
ID Number
PH.308955
catalog number
308955
accession number
89797
patent number
209,562
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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