Barometer
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1974.0153.001
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- OBJECT TYPE
- Aneroid/Ft/Surveying/Portable
- DATE
- 1940–1949
- ARTIFACT NUMBER
- 1974.0153.001
- MANUFACTURER
- Instruments Ltd.
- MODEL
- Unknown
- LOCATION
- Ottawa, Ontario, Canada
More Information
General Information
- Serial #
- 362
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- Metal barometer casing and dial, glass.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 12.0 cm
- Width
- 11.3 cm
- Height
- 10.5 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
- Instruments
- Country
- Canada
- State/Province
- Ontario
- City
- Ottawa
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Example of barometer used by Canadian government departments. This one from Energy, Mines, and Resources. This model was originally designed for the Canadian army then adopted for general surveying purposes. - Function
-
An instrument that measures atmospheric pressure through its effect onan aneroid, or metal chamber partially exhausted of air. This type was used in measuring altitude. - Technical
-
This aneroid barometer reads to 15 000 feet. The main scale reads from 0 to 1000 feet - each revolution of the main pointer represents a 1000 foot change in elevation. The smaller scale records the number of revolutions made by the main pointer. Each division on the main scale is 1/8 of an inch apart and represents 10 feet. This method of notation is supposed to make the instrument easy to read; because of the simplicity, the instrument does not have a magnifier. This barometer can be taken to a height of 35 000 feet before becoming deranged, which allows the barometer to be taken in an airplane. - Area Notes
-
Unknown
Details
- Markings
- Black lettering on dial face reading 'SURVEYING ANEROID/FULL RANGE COMPENSATED/MADE BY/INSTRUMENTS LIMITED/OTTAWA/SERIAL NO. 362', '1 DIV=100 FEET'/markings for 0 to 1000/'T49-64' stamped into carrying case cover.
- Missing
- Carrying case strap.
- Finish
- Brown leather with red lining/black casing/metallic grey dial with black indicator needles.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Instruments Ltd., Barometer, circa 1940–1949, Artifact no. 1974.0153, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1974.0153.001/
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