Barograph

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Ingenium, 1987.0529.001
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OBJECT TYPE: ANEROID
DATE: 1950–1959
ARTIFACT NUMBER: 1987.0529.001

MANUFACTURER: Meteorological Service of Canada
MODEL: A-3
LOCATION: Canada

More Information

General Information

Serial #: 241
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: CAST IRON BASE/ METAL FRAMED CASING TOP WITH HINGED LID AND 4 GLAZED SIDES/ METAL PARTS/ BRASS ANEROID.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 32.8 cm
Width: 17.1 cm
Height: 22.8 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: Environment CA
Country: Canada
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Unknown
Period: M.S.C. TYPE A BAROGRAPHS WERE USED FROM THE EARLY 1940'S INTO THE 1960'S.
Canada: A BAROGRAPH DESIGNED & BUILT BY THE CANADIAN METEOROLOGICAL SERVICE FOR USE AT ITS OBSERVING STATIONS.
Function: AN INSTRUMENT THAT MEASURES AND RECORDS ATMOSPHERIC PRESSURE THROUGH ITS EFFECT ON AN ANEROID, A METAL CHAMBER PARTIALLY EVACUATED OF AIR.
Technical: THE FIRST M.S.C. BAROGRAPH (INCLUDING TYPES A & LATER A-3) WAS DESIGNED IN 1940. IT HAS A LARGE ANEROID TO OVERCOME FRICTION OF THE MOVING PARTS (WITH A SHIELD) & AN EXTERNALSPRING; THE ANEROID IS GAS (NITROGEN) FILLED FOR GAS COMPENSATION. IN THE LATE 1950'S IT WAS SUCCEEDED BY THE M.S.C. TYPE B.
Area Notes: Unknown

Details

Markings: Incised gold lettering on mechanism reading 'M.S.C. TYPE A-3 241'.
Missing: PEN LEVELER/ CLOCK AND DRUM NOT ORIGINAL. From CA of 10/28/1993 by Tony Missio: No - Complete
Finish: BLACK WRINKLE FINISHED BASE AND CASING/ BLACK WRINKLE FINISHED AND PLATED PARTS/ PLATED ANEROID COVER/ BRASS COLOURED ANEROID.
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

Meteorological Service of Canada, Barograph, between 1950–1959, Artifact no. 1987.0529, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0529.001/

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