Anemometer U arm

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OBJECT TYPE: electrical
DATE: Unknown
ARTIFACT NUMBER: 2013.0064.002

MANUFACTURER: AES/MSC
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 2
Total Parts: 3
AKA: N/A
Patents: N/A
General Description: An aluminum U arm with metal hardware and a synthetic eletrical cord with a metal electrical fitting.

Dimensions

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

Length: 87.0 cm
Width: 81.0 cm
Height: 74.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Meteorology
Category: Surface wind speed & direction measurement
Sub-Category: N/A

Manufacturer

AKA: Environment CA
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: British Columbia
Period: 1970 - 1990
Canada: From a collection of instruments used at Meteorological Services of Canada observing station at Parks Canada Warden Office in Rogers Pass National Historic Site, Glacier National Park, B.C. Used by Parks Canada avalanche forecasters to measure and record wind speed and direction, to track weather patterns, create avalanche forecasts/bulletins, and etc along the Trans-Canada Highway and Canadian Pacific Railway transportation corridor.
Function: An instrument that measures wind speed & direction by means of a cup wheel & wind vane respectively, with the readings recorded electrically by a separate anemograph. The cup wheel and wind vane assemblies were fitted to a anemometer U arm approx. 1.3m long.
Technical: A three cup anemometer was designed by Canadian meteorologist John Patterson of the Canadian Meteorological Service in the 1920’s. Successive versions of this Canadian anemometer was used by the MSC for decades at various observing stations in Canada. This likely 1980’s version of the Patterson anemometer has modified wind speed and direction electrical contacts in the base units to electrically send data.
Area Notes: Unknown

Details

Markings: Mfr's stamp[inside electrical fitting]:"1-16/CANNON/B". Mfr's stamp[outside of the electrical fitting]:"CANNON/
Missing: Nothing is missing.
Finish: An grey aluminum U arm; synthetic grey cord with a metal electrical fitting, with black synthetic electrical tape wrapped around the end of the electical cord and on the body of the U arm; metal hardware.
Decoration: None.

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AES/MSC, Anemometer U arm, Unknown Date, Artifact no. 2013.0064, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2013.0064.002/

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