Barometer
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1987.0546.001
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- OBJECT TYPE
- MERCURY/ABRAHAM-FORTIN/MB & INCHES/ADJUSTABLE CISTERN/STANDARD
- DATE
- 1940
- ARTIFACT NUMBER
- 1987.0546.001
- MANUFACTURER
- Casella
- MODEL
- Unknown
- LOCATION
- London, England
More Information
General Information
- Serial #
- 3362
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- METAL CASING & TUBE, PARTS/ GLASS TUBES/ MERCURY
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 8.7 cm
- Width
- 5.5 cm
- Height
- 107.0 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
- Casella
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- AT LEAST FROM 1941 TO 1956, & POSSIBLY INTO 1960'S.
- Canada
-
SERVED AS STANDARD BAROMETER IN THE CANADIAN METEOROLOGICAL SERVICE TORONTO OBSERVATORY, & IS POSSIBLY INSTRUMENT USED FOR COMPARISONS WITH PATTERSON-MIDDLETON WEIGHT BAROGRAPH (870527) IN 1941. - Function
-
AN INSTRUMENT THAT MEASURES ATMOSPHERIC PRESSURE THROUGH ITS EFFECT ON A COLUMN OF MERCURY. - Technical
-
THIS REPRESENTS A RADICALLY NEW BAROMETER DESIGN PATENTED BY ABRAHAM IN 1937. IT HAS FORTIN TYPE ADJUSTABLE CISTERN & STAINLESS STEEL POINT IN SIDE TUBE. POINT IS ILLUMINATED BY WINDOW IN SIDE TUBE & VIEWEDBY EYEPIECE. BAROMETER WAS INTENDED TO PROVIDE HIGH ACCURACY WHILE REMAINING EASY TO SET. - Area Notes
-
Unknown
Details
- Markings
- Incised black lettering on scale and vernier reading 'CASELLA/ LONDON', '3362', & 'MADE IN ENGLAND', for 87 to 111 & 26 to 32/incised black lettering on thermometer mount for -20 to +120 F. & 270 to 320 absolute.
- Missing
- From CA of 11/03/1993 by Tony Missio: No - Complete
- Finish
- BLACK ENAMEL, MOTTLED GREEN, AND BRUSHED METAL CASING/ BRASS COLOURED PARTS/ CLEAR COLOURLESS GLASS.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Casella, Barometer, circa 1940, Artifact no. 1987.0546, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1987.0546.001/
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