General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

BRASS AND WOOD MOUNT/ WOOD HANDLE/ GLASS THERMOMETERS/ FABRIC COVER ON ONE THERMOMETER BULB.

Dimensions

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

Length

280.0 cm

Width

14.6 cm

Height

2.6 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

MSC

Country

Unknown

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Unknown

Period

c. 1940

Canada

POSSIBLY AN INSTRUMENT DESIGNED & MADE BY OR FOR THE CANADIAN METEOROLOGICAL SERVICE. IT APPEARS TO BE IDENTICAL TO THE ONE ILLUSTRATED BY CANADIAN METEOROLOGIST MIDDLETON IN 1941 & MAY BE THE TYPE USED IN CANADA AT THAT TIME. BY 1948-49, A NEW LARGER PSYCHROMETER HAD BEEN DEVELOPED, PROBABLY THE TYPE B.

Function

AN INSTRUMENT FOR DETERMINING ATMOSPHERIC HUMIDITY BY COMPARING THE DIFFERENT READINGS FROM TWO THERMOMETERS, ONE WITH A BULB KEPT WET AND VENTILATED.

Technical

A PSYCHROMETER WITH ITS TWO THERMOMETERS MOUNTED ON A WOOD PANEL WITHIN A METAL FRAME, WITH A RIGID PIVOTED HANDLE OF METAL. THIS INSTRUMENT MORE CLOSELY RESEMBLES THE BRITISH STYLE OF PSYCHROMETER THEN THE AMERICAN ONE WITH ITS METAL MOUNT & CHAIN LINK HANDLE.

Area Notes

Unknown

Details

Markings

Black markings on thermometers -40 to +120o F. on front, on back '1888065' on one and '2039192' on other.

Missing

From CA of 12/08/1993 by Tony Missio: No - Complete

Finish

RED COLOURED WOOD OF TWO DIFFERENT TYPES, VARNISHED/ WHITEBACKED THERMOMETERS WITH METALLIC BULBS/ WHITE FABRIC.

Decoration

N/A