Thermometer
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1987.0719.001
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- OBJECT TYPE
- MERCURY-THALLIUM/FAHREN/MOUNTED
- DATE
- 1950
- ARTIFACT NUMBER
- 1987.0719.001
- MANUFACTURER
- H-B INSTRUMENT CO.
- MODEL
- 22420-C
- LOCATION
- Philadelphia, Pennsylvania, United States of America
More Information
General Information
- Serial #
- T718862
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- BAKELITE AND BRASS HOLDER/ GLASS THERMOMETER TUBE/ MERCURY?
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 33.1 cm
- Width
- 4.6 cm
- Height
- 2.6 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Meteorology
- Category
- Atmospheric temperature measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- HB
- Country
- United States of America
- State/Province
- Pennsylvania
- City
- Philadelphia
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- +/- 1952
- Canada
-
AN AMERICAN MADE THERMOMETER IN A CANADIAN METEOROLOGICAL SERVICE HOLDER, THE LATTER MARKED DOT METEOROLOGICAL DIVISION, INDICATING IT WAS MADE BETWEEN 1936 & 1956. - Function
-
AN INSTRUMENT THAT MEASURES LOW AIR TEMPERATURES BY MEANS OF THE EFFECT OF TEMPERATURE ON A COLUMN OF MERCURY-IN-GLASS. THE MERCURY CONTAINS THALLIUM WHICH LOWERS ITS FREEZING POINT FOR USE AT VERY LOW TEMPERATURES. - Technical
-
A MERCURY-THALLIUMTHERMOMETER FOR LOW TEMPERATURES, IN A CANADIAN METEOROLOGICAL SERVICE HOLDER, BOTH OF THE TYPE ILLUSTRATED IN THE 1952 M.S.C. MANUAL (REF. 1). THE CANADIAN SERVICE BEGAN USING MERCURY-THALLIUM IN 1948-1949; IT FREEZES AT -78 DEGREES F. WHILE MERCURY DOES SO AT -38 DEGREES F. - Area Notes
-
Unknown
Details
- Markings
- Black lettering on thermometer back reading 'MERCURY THALLIUM FILLED CAT.NO. 224020-C HB T718862 USA' & on front for -70 to +70 F./white markings on bakelite for -70 to +70 F. and reading 'CANADA, DEPT. OF TRANSPORT/ METEOROLOGICAL DIVISION' and gold lettering reading 'NO. T-718862'.
- Missing
- From CA of 12/30/1993 by Tony Missio: No - Complete
- Finish
- BLACK BAKELITE WITH BRASS COLOURED PARTS/ CLEAR, COLOURLESS TUBE WITH YELLOW BACK/ METALLIC BULB
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
H-B INSTRUMENT CO., Thermometer, circa 1950, Artifact no. 1987.0719, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0719.001/
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