Melting Point Apparatus


This device determined the melting point of flammable substances. The “P. MILLSPAUGH PAT. APP’D FOR ’71” inscription is that of Pethuel Millspaugh (1821-1886), a resident of Kent, Conn. who was concerned with kerosene accidents. The original heating lamp is missing. An inscription on the thermometer reads “W.T. and T.V. Gendar, N.Y.” William T. and Thomas V. Gendar were in business together from 1860 to 1877, making and selling thermometers, hydrometers, and similar instruments.

Ref: Pethuel Millspaugh, “Improvement in Testing Burning Fluids,” U.S. Patent 127,259 (May 28, 1872).

Pethuel Millspaugh, Kerosene Accidents, and How to Prevent Them (New York, 1874).

“Improved Apparatus for Testing Illuminating Oils,” Scientific American (March 18, 1876), p. 182.

Date Made: 1871

Maker: W. T. & T. V. Gendar

Location: Currently not on view

See more items in: Medicine and Science: Chemistry


Exhibition Location:

Credit Line: Gift of Brown University

Data Source: National Museum of American History

Id Number: CH.315374Catalog Number: 315374Accession Number: 218984

Object Name: Melting Point Apparatus

Measurements: base: 5 in x 3 1/2 in; 12.7 cm x 8.89 cmtop: 4 1/2 in x 2 1/2 in; 11.43 cm x 6.35 cmoverall: 10 1/2 in x 3 9/16 in; 26.67 cm x 9.04875 cm


Record Id: nmah_1795

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