Thermometer dividing engine, London, England, 1925-1940

Made:
1925-1940 in London
maker:
R W Munro Limited

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

thermometer dividing engine, iron bed with bronze and steel fittings, by R.W.Munro Ltd., London, 1925-1940

Scales upon thermometers were accurately marked using this dividing engine. Thermometers must be made to a very high quality to be accurate. The glass needs to be carefully blown so the tube width is the same along its whole length. The dividing engine then has to make precise and consistent scales on the outside of the thermometer. It was made by F. W. Johnson and Daughter of Hendon, north London.

Details

Category:
Clinical Diagnosis
Object Number:
1979-670/1
Materials:
bed, iron, fittings, bronze, fittings, steel
type:
linear dividing engine
taxonomy:
  • furnishing and equipment
  • tools & equipment
  • furnishing and equipment
  • tools & equipment
  • dividing engine
credit:
Johnston, F
status:
Permanent collection

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