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Winlock & Huddleston Psychrometer
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
Patent model for Joseph Winlock and John S F. Huddleston, "Psychrometer," U.S. Patent 149,176 (March 31, 1874). Joseph Winlock was a professor of astronomy at Harvard College, and John S. F. Huddleston was a thermometer and barometer maker in Boston. 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.
National Museum of American History’s own descriptionSubjects
Credit lineWinlock & Huddleston Psychrometer. 1873. Huddleston, John S. F.. National Museum of American History. CC0.
