General Information

Serial #

C78716

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

CARDBOARD CASING/ METAL, SYNTHETIC & GLASS WORKINGPARTS/ STYROFOAM INSULATION/ GOLDBEATER'S SKIN (ANIMAL INTESTINE) HUMIDITY ELEMENT

Dimensions

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

Length

25.0 cm

Width

13.5 cm

Height

27.2 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Upper air pressure, temperature & humidity measurement

Sub-Category

N/A

Manufacturer

AKA

Sangamo

Country

Canada

State/Province

Ontario

City

Leaside

Context

Country

Canada

State/Province

Unknown

Period

late 1950's

Canada

ONE OF A SERIES OF TIME-CYCLE RADIOSONDES DEVELOPED BY THE CANADIAN METEOROLOGICAL SERVICE & MADE BY THE CANADIAN COMPANY SANGAMO. THE FIRST WAS DEVELOPED BY R. JACOBSEN IN THE LATE 1930'S OR 1940'S. THIS ONE MAY REPRESENT THE MSC TYPE 3 RADIOSONDEINTRODUCED IN 1957.

Function

DEVICE RAISED BY BALLOON INTO UPPER ATMOSPHERE TO READ TEMPERATURE, HUMIDITY, & AIR PRESSURE, & TRANSMIT DATA TO EARTH.

Technical

THIS APPEARS TO BE THE VERSION OF THE CANADIAN TIME- CYCLE RADIOSONDE IN USE IN 1957, HAVING ANEROID PRESSURE & GOLDBEATER'S SKIN HUMIDITY SENSORS & 2 FLAT BIMETAL TEMPERATURE SENSORS. THE SIGNAL MECHANISM IS A FLAT ROTATING DISK WITH GROOVES CUT IN IT, OVER WHICH RIDES 4 SENSOR & 1 REFERENCE CONTACT ARMS.

Area Notes

Unknown

Details

Markings

PLATE INSIDE INSTRUMENT COMPARTMENT READING 'PROPERTY OF/ CANADIAN METEOROLOGICAL SERVICE/ NO C 78716/ SANGAMO/ COMPANY LIMITED/ LEASIDE CANADA'/ HANDWRITTEN '78716' & 'DEMONSTRATOR' IN BLACK CRAYON ON CASING/ INCISED '4891' ON HYGROMETER MOUNT/ BLACK '78716' ON INSTRUMENT CHASSIS

Missing

BATTERY From CA of 10/25/1993 by Tony Missio: Undetermined

Finish

BROWN CARDBOARD/ MULTICOLOURED SYNTHETIC/ METALLIC PARTS

Decoration

N/A