Rule

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OBJECT TYPE
rain gauge/imperial
DATE
1950–1960
ARTIFACT NUMBER
2004.0335.001
MANUFACTURER
White & Thomas
MODEL
Unknown
LOCATION
Toronto, Ontario, Canada

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
Dipstick
Patents
N/A
General Description
wood

Dimensions

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

Length
N/A
Width
N/A
Height
N/A
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Meteorology
Category
Precipitation amount, rate & duration measurement
Sub-Category
N/A

Manufacturer

AKA
White Thomas
Country
Canada
State/Province
Ontario
City
Toronto

Context

Country
Canada
State/Province
Unknown
Period
1950's; this device was apparently in use for 50 years (Ref. 3)
Canada
A Canadian made rain gauge accessory of a type used by the Meteorological Service of Canada in gathering precipitation data across Canada. Part of a large collection of meteorological instruments acquired from the Meteorological Service of Canada (previously Atmospheric Environment Service) by the CSTM since 1967. MSC is the government agency responsible for collecting and disseminating meteorological data and forecasts in Canada. It was founded in 1871 in Toronto where it is still headquartered. The MSC was originally on the University of Toronto downtown campus but moved to Downsview in 1971 on land owned by UofT. The headquarters houses laboratories, research facilities A White & Thomas dip stick for a non-standard 3.6" rain gauge. The MSC copper rain gauge (1987.0598) used an expensive glass graduate (1988.0074 or 1991.0122) which is easily broken. A much less expensive and durable wooden dip stick required that a new gauge be designed. This was tested during WWII and seems to have been used extensively in the prairies. These gauges were distributed by the Saskatchewan Pool in the 1950's. The orifice area was also 100 square inches like the MSC copper gauge. The graduations the dip stick corrected for the water it displaced (Ref. 1).and calibration and instrument maintenance facilities (now largely contracted out).
Function
A measuring stick inserted into a quantity of water in a rain gauge to measure how much precipitation had been collected.
Technical
Unknown
Area Notes
Unknown

Details

Markings
black lettering reading 'WHITE & THOMAS - TORONTO' and 'HUNDREDTHS' with markings for .10 to 1.0
Missing
complete
Finish
light brown stained wood
Decoration
N/A

CITE THIS OBJECT

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

White & Thomas, Rule, circa 1950–1960, Artifact no. 2004.0335, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2004.0335.001/

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