Psychrometer
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1987.0873.001
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- OBJECT TYPE
- ASPIRATED/STATIONARY/MOTORIZED
- DATE
- 1938–1948
- ARTIFACT NUMBER
- 1987.0873.001
- MANUFACTURER
- Delamere & Williams Automatic Machinery Ltd.
- MODEL
- ADF
- LOCATION
- Toronto, Ontario, Canada
More Information
General Information
- Serial #
- ADE
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- METAL CASING/ WOOD BASE
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 35.5 cm
- Width
- 16.8 cm
- Height
- 23.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Meteorology
- Category
- Atmospheric humidity measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- Delamere Williams
- Country
- Canada
- State/Province
- Ontario
- City
- Toronto
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- LATE1930'S TO 1950'S
- Canada
-
AN INSTRUMENT DESIGNED BY & MADE BY A CANADIAN FIRM FOR THE CANADIAN METEOROLOGICAL SERVICE FOR USE AT ITS OBSERVING STATIONS. - Function
-
MOTOR, FAN, & DUCT PORTION OF A MOTORIZED PSYCHROMETER, AN INSTRUMENT MOUNTED IN A STEVENSON SCREEN & USED TO MEASURE ATMOSPHERIC HUMIDITY BY COMPARING THE TEMPERATURE MEASUREMENTS OBTAINED BY WET & DRY BULB THERMOMETERS. - Technical
-
AN EXAMPLE OF THE FIRST VERSION OF THE MSC MOTORIZED PSYCHROMETER, DEVELOPED IN THE LATE 1930'S, IN WHICH THE MOTOR, FAN, & THERMOMETERS ARE MOUNTED INSIDE A STEVENSON SCREEN. IT WAS SUPPLANTED IN THE LATE 1940'S BY A NEWER VERSION OF THE MSC PSYCHROMETER. - Area Notes
-
Unknown
Details
- Markings
- Plate reading 'GENERAL ELECTRIC/ A.C. MOTOR/ H.E.P.C. APPROVAL NO.922/ MODEL 12421P TYPE KC/ FR.35 A. 1.2 V.110/ CYC. 60 RPM 1723 PH 1 HP. 1/20 / TEMP RISE 55oC TIME RATING CONT./ CAPC NO 7F814/ 2179/ CAN. GEN. ELEC. CO. LIMITED TORONTO, CANADA' on motor/ Plate reading 'DELAMERE & WILLIAMS/ AUTOMATIC MACHINERY/ Limited/ DESIGNERS AND MANUFACTURERS/ SERIAL ADF PATENT/ TORONTO' on duct casing.
- Missing
- BOTH WET AND DRY BULB THERMOMETERS, THERMOMETER MOUNT, WATER VESSEL AND WICK From CA of 12/09/1993 by Tony Missio: Yes - missing thermometers, thermometer holders, start capacitor
- Finish
- BLACK AND GREY PAINTED CASING/ UNFINISHED WOOD/ BLACK ENAMEL PAINTED PARTS/ PLATED PARTS
- Decoration
- DELAMERE & WILLIAMS LOGO ON PLATE
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Delamere & Williams Automatic Machinery Ltd., Psychrometer, between 1938–1948, Artifact no. 1987.0873, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0873.001/
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