Rutherford maximum and minimum thermometer, 1794

Made:
1794 in Taunton
maker:
Daniel Rutherford
Lake & Son
and
Daniel Rutherford
Rutherford type maximum and minimum thermometer, by Lake & Son

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Rutherford type maximum and minimum thermometer, by Lake & Son
Science Museum Group
© The Board of Trustees of the Science Museum

Rutherford type maximum and minimum thermometer, by Lake & Son, Taunton, Somerset, England, 1794

The aspect that made the Rutherford maximum and minimum thermometer innovative was the way the temperatures reached were marked by a tiny steel spring inside the tube. This would be pushed up by the mercury or down by the spirit, and lodge at the extreme positions of the readings. This example was made by Lake of Taunton.

Details

Category:
Meteorology
Object Number:
1915-421
Materials:
brass (copper, zinc alloy), complete, boxwood, glass, mercury and spirit
Measurements:
overall width and length: 30 mm x 245 mm x 115 mm, .29kg
type:
maximum & minimum thermometer
credit:
Royal Meteorological Society