Tube, for pocket barometer by Stebbing
Tube, for pocket barometer by Stebbing, Southampton, England, unsigned, 1845-1851
Pocket air barometer, or sympiesometer, 1845-1851.
- Made:
- 1845-1855
- maker:
- Joseph Rankin Stebbing
Pocket barometer with mercury and alcohol, and tube, by Joseph Rankin Stebbing, Canute Road, Southampton, England, 1845-1855
Mercury barometers needed to have two tubes that were at least 33 inches long, and were generally cumbersome to carry around. To allow for readings of air pressure by a pocket instrument, a much shorter glass tube was doubled back on itself to fit a small case, and the moving agent was a combination of air, spirit and mercury. This example was made by Stebbing of Southampton.
Details
- Category:
- Meteorology
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1980-98
- type:
- sympiesometer
- credit:
- On loan from the Wellcome Trust
Parts
Pocket barometer, sympiesometer, 1845-1851
Pocket barometer, sympiesometer, with mercury and alcohol, by Joseph Rankin Stebbing, Canute Road, Southampton, England, 1845-1855
More
Mercury barometers needed to have two tubes that were at least 33 inches long, and were generally cumbersome to carry around. To allow for readings of air pressure by a pocket instrument, a much shorter glass tube was doubled back on itself to fit a small case, and the moving agent was a combination of air, spirit and mercury. This example was made by Stebbing of Southampton.
- Measurements:
-
overall: 265 mm x 60 mm x 24 mm, .145kg
- Materials:
- mercury , glass , alcohol , ivory , steel (metal) , nickel plated , brass (copper, zinc alloy) , leather , iron , wood (unidentified) , silk and hair
- Object Number:
- 1980-98 Pt2
- type:
- sympiesometer
- Image ©
- The Board of Trustees of the Science Museum
