Credit: © The Royal Society
Image number: RS.9828
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Mechanical thermometer
Date
10 April 1735
Creator
Cromwell Mortimer (1694 - 1752, British) , Physician
Object type
Archive reference number
Material
Dimensions
height (drawing): 325mm
width (drawing): 205mm
width (drawing): 205mm
Subject
Content object
Description
Scheme for a thermometer using temperature variations in an iron rod to move a dial on a clock-face temperature scale. The textual account notes that the melting points of metallic elements might be tried and marked upon the scale. From the manuscript copy of “A discourse concerning the usefulness of thermometers in chemical experiments...together with a description and uses of a new invented metalline thermometer”, by Cromwell Mortimer. The drawing is initialled and dated below “CM delin. Apr. 10. 1735.”
Royal Society Register Book Original, vol.19 1734-1736, pp.161-184. The paper was read before the Royal Society on 8 May 1735, but not published in Philosophical Transactions of the Royal Society.
Royal Society Register Book Original, vol.19 1734-1736, pp.161-184. The paper was read before the Royal Society on 8 May 1735, but not published in Philosophical Transactions of the Royal Society.
Associated place