Barometer
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1974.0120.001
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- OBJECT TYPE
- Aneroid/In/ft/Portable
- DATE
- 1915–1950
- ARTIFACT NUMBER
- 1974.0120.001
- MANUFACTURER
- Short & Mason
- MODEL
- Unknown
- LOCATION
- London, England
More Information
General Information
- Serial #
- D 2346
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- Metal casing and dial/glass dial cover and lens/ leather carrying case with plush lining and metal hardware.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 18.0 cm
- Width
- 15.5 cm
- Height
- 7.9 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Meteorology
- Category
- Atmospheric pressure measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- Short Mason
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Example of a British made surveying instrument of a type used by many Canadian Government departments. This example from The Department of Energy, Mines, and Resources. - Function
-
An instrument that measures atmospheric pressure through its effect on an aneroid, or metal chamber partially exhausted of air. This type was used in measuring altitude. - Technical
-
This model of barometer, No. 2121D, was made from at least 1912 to the early 1950s. Short & Mason (S&M) made a number of surveying aneroid barometers. Many of the features on these barometers were the same. All had revolving verniers that allowed subdivision of the altitude scale. The verniers were divided in ten equal divisions, covering 21 divisions of the altitude scale. The barometers were compensated for errors due to expansion and contraction of their moving parts, though corrections had to be made for temperature and weather changes. They also all had a rotating reading lens to make reading the instrument easier. The models differed in the altitudes to which they read: 2121D read until an altitude of 6000 feet and by vernier to 2 foot; 2121 read to 6000 feet and by vernier to 1 foot; 2121F read to 1600 feet and by vernier to 2 feet. - Area Notes
-
Unknown
Details
- Markings
- Black lettering on dial face reading 'SURVEYING ANEROID/NO. D 2346/ SHORT & MASON/LONDON/COMPENSATED'/marked for 22 to 31 inches & 0 to 1000 feet/ 'GSC 537' hand incised on casing back and stamped into carrying case.
- Missing
- From CA of 11/12/1993 by Tony Missio: No - Complete
- Finish
- Black enamel painted casing with metallic parts/white dial with black indicator needle/brown leather with maroon lining.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Short & Mason, Barometer, circa 1915–1950, Artifact no. 1974.0120, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1974.0120.001/
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