Rutherford maximum and minimum thermometer, 1794

Made:
1794 in Taunton
designer:
Daniel Rutherford
and
Daniel Rutherford
and

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
Materials:
boxwood, brass (copper, zinc alloy), complete, glass, mercury, spirit
Measurements:
overall width and length: 30 mm x 245 mm x 115 mm, .29kg
Identifier:
1915-421
type:
maximum & minimum thermometer
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • thermometer
credit:
Royal Meteorological Society
status:
Permanent collection

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