Winlock & Huddleston Psychrometer
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Object Details
- Huddleston, John S. F.
- Winlock, Joseph
- Description
- This is the model that Joseph Winlock, a professor of astronomy at Harvard College, and John S. F. Huddleston, a thermometer and barometer maker in Boston, submitted along with their patent application in 1873. The wet bulb thermometer is mounted on a brass plate that is marked "HUDDLESTON BOSTON" and graduated every degree Fahrenheit from +10 to +115. The dry bulb thermometer is missing.
- The wooden tower holds a rotating chart that indicates relative humidity, and carries a brass plate graduated every degree from +6 to +113. The patent described "a simple, efficient, and convenient means of determining the relative humidity of the atmosphere or the dew-point, so called, without calculation."
- Ref: J. Winlock and J. S F. Huddleston, "Psychrometer," U.S. Patent 149176 (issued 1874).
- Location
- Currently not on view
- 1873
- ID Number
- PH.309319
- catalog number
- 309319
- accession number
- 89797
- patent number
- 149,176
- Object Name
- psychrometer
- Object Type
- Patent Model
- Measurements
- overall: 14 3/4 in x 8 1/2 in x 4 in; 37.465 cm x 21.59 cm x 10.16 cm
- place made
- United States: Massachusetts, Boston
- See more items in
- Medicine and Science: Physical Sciences
- Thermometers and Hygrometers
- Measuring & Mapping
- National Museum of American History
- Record ID
- nmah_1167496
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- http://n2t.net/ark:/65665/ng49ca746a9-fa48-704b-e053-15f76fa0b4fa
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