Barometer

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Ingenium, 1966.0226.001
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OBJECT TYPE: MERCURY/PATTERSON FIXED CISTERN/MB & IN
DATE: 1940
ARTIFACT NUMBER: 1966.0226.001

MANUFACTURER: DOT Air Services Branch
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: 26-41
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: METAL/ LEATHER CISTERN/ GLASS THERMOMETER

Dimensions

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

Length: N/A
Width: 8.0 cm
Height: 101.5 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: MSC
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Unknown
Period: C. 1940
Canada: INSTRUMENT OF TYPE DESIGNED IN 1930'S BY DR. JOHN PATTERSON, DIRECTOR OF MSC 1928-1946, & USED EXTENSIVELY BY MSC UNTIL AT LEAST 1960'S. BY 1943 IT WAS STATION BAROMETER AT MAJORITY OF CANADIAN OBSERVING STATIONS & SEVERAL VERSIONS, INCLUDING MOUNTAIN & MARINEINSTRUMENTS, WERE PRODUCED BY MSC IN SUBSEQUENT YEARS.
Function: AN INSTRUMENT THAT MEASURES ATMOSPHERIC PRESSURE THROUGH ITS EFFECT ON A COLUMN OF MERCURY.
Technical: SUCCESSFUL ATTEMPT TO COMBINE SIMPLICITY OF READING OF FIXED CISTERN BAROMETER & EASE OF TRANSPORT OF ADJUSTABLE CISTERN TYPE. INSTRUMENT HAS PLUNGER AT BASE THAT CAN BE RAISED TO FILL CISTERN & TUBE DURINGTRANSPORT; WHEN IN USED SCREW HOLDING PLUNGER IS REMOVED TO RELEASE LEATHER BAG* IS REPLACED BY PLUG. THIS INSTRUMENT SUCCEEDED KEW FIXED CISTERN BAROMETER AT CANADIAN OBSERVING STATIONS.
Area Notes: Unknown

Details

Markings: Incised black markings on scale and vernier for 87 to 110 MB. & 26 to 32 IN. & reading 'M.S.C./ 26-41'/ incised white 'FAHRENHEIT' on thermometer holder/ thermometer marked for 10 to 120 F.
Missing: GLASS MERCURY TUBE/ MERCURY From CA of 11/02/1993 by Tony Missio: Yes
Finish: GREEN HAMMERLINE PAINTED CASING & BLACK ENAMEL PAINTED THERMOMETER HOLDER (NOT ORIGINAL)/ PLATED METAL BASE AND PARTS/ BRUSHED METAL SCALE/ YELLOW BACKED CLEAR GLASS THERMOMETER.
Decoration: N/A

CITE THIS OBJECT

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

DOT Air Services Branch, Barometer, circa 1940, Artifact no. 1966.0226, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0226.001/

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