Thermograph

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Ingenium, 1987.0641.001
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OBJECT TYPE: DEFORMATION/BIMETAL/EXTERNAL/AIR
DATE: 1960–1969
ARTIFACT NUMBER: 1987.0641.001

MANUFACTURER: Negretti & Zambra
MODEL: Unknown
LOCATION: London, England

More Information

General Information

Serial #: R/25446
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: CAST IRON BASE AND END/ METAL CASING TOP WITH GLASS FRONT, HINGED AT ONE END/ METAL BIMETAL, MECHANISM AND PARTS.

Dimensions

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

Length: 35.2 cm
Width: 19.0 cm
Height: 27.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Meteorology
Category: Atmospheric temperature measurement
Sub-Category: N/A

Manufacturer

AKA: Negretti Zambra
Country: England
State/Province: Unknown
City: London

Context

Country: Canada
State/Province: Unknown
Period: Unknown
Canada: AN ENGLISH MADE THERMOGRAPH, OF A TYPE USED BY THE CANADIAN METEOROLOGICAL SERVICE.
Function: AN INSTRUMENT THAT MEASURES AND RECORDS ATMOSPHERIC TEMPERATURE THROUGH THE DEFORMATION OF A BIMETALLIC SENSOR.
Technical: THIS NEGRETTI & ZAMBRA THERMOGRAPH, WITH ITS EXTERNAL HELICAL COIL BIMETAL, IS OF THE TYPE USED BY THE CANADIAN SERVICE IN THE EARLY 1950'S (REF. 1), & POSSIBLY IS THE ONE USED INTO THE 1960'S. AN EARLIER N & Z THERMOGRAPH WAS TAKEN TO CANADIAN INTERNATIONAL POLAR YEAR STATIONS IN 1932-1933.
Area Notes: Unknown

Details

Markings: Interior plate reading 'THERMOGRAPH/MADE IN ENGLAND/SERIAL NO. R/ 25446/RANGE -40/+120oF/exterior plate reading 'NEGRETTI & ZAMBRA/TRADEMARK/ LONDON'.
Missing: INK BOTTLE From CA of 11/03/1993 by Tony Missio: No - Complete
Finish: GREYENAMEL PAINTED CASING/ BLACK ENAMEL PAINTED BIMETAL PROTECTOR/ METALLIC PARTS/ PLATED BOTTLE HOLDER.
Decoration: N/A

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

Negretti & Zambra, Thermograph, between 1960–1969, Artifact no. 1987.0641, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0641.001/

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