Barometer

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Ingenium, 1987.0558.001
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OBJECT TYPE: MERCURY/FORTIN/IN/ADJUSTABLE CISTERN, MOVABLE SCALE
DATE: Unknown
ARTIFACT NUMBER: 1987.0558.001

MANUFACTURER: Welch, W.M. Mfg. Co.
MODEL: ML-2-A
LOCATION: Chicago, Illinois, United States of America

More Information

General Information

Serial #: 114
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: METAL CASING & TUBE/ BRASS PARTS/ GLASS TUBE & CYLINDER/ BOXWOOD AND LEATHER CISTERN/ IVORY POINT.

Dimensions

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

Length: N/A
Width: 5.0 cm
Height: 98.5 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: Welch
Country: United States of America
State/Province: Illinois
City: Chicago

Context

Country: Canada
State/Province: Unknown
Period: Unknown
Canada: Unknown
Function: AN INSTRUMENT THAT MEASURES ATMOSPHERIC PRESSURE THROUGH ITS EFFECT ONA COLUMN OF MERCURY.
Technical: APPEARS TO BE A GREEN TYPE FORTIN BAROMETER WITH A BOXWOOD CISTERN, IVORY? POINT, & MOVABLE SCALE, CHARACTERIZED BY CISTERN HELD TOGETHER BY SCREWS RATHER THAN GLUE TO FACILITATE DISASSEMBLY FOR CLEANING. FOR PORTABILITY, DURABILITY, & EASE OF CLEANING, GREEN'S BAROMETER HAS NEVER BEEN SURPASSED (1).
Area Notes: Unknown

Details

Markings: Plate reading 'SIGNAL CORPS. U.S. ARMY/BAROMETER ML-2-A/SERIALNO. 114 ORDER NO. 6625-NY-41/W.M. WELCH MANUFACTURING COMPANY/CHICAGO ILLINOIS'/ incised black markings on scale for 24 to 32 inches.
Missing: THERMOMETER/ ADJUSTMENT SCREW/ MERCURY/ GLASS BROKEN. From CA of 11/02/1993 by Tony Missio: Yes - missing mercury, adjusting knob from bottom of cistern
Finish: METALLIC GREY CASING AND TUBE/ BRASS COLOURED PARTS/ CLEAR, COLOURLESS GLASS.
Decoration: N/A

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

Welch, W.M. Mfg. Co., Barometer, Unknown Date, Artifact no. 1987.0558, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0558.001/

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