General Information

Serial #

R/25455

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

CAST IRON BASE AND END/ METAL CASING TOP HINGED AT ONE END/ METAL BIMETAL, MECHANISM, AND PARTS/ GLASS INK BOTTLE WITH RUBBERSTOPPER.

Dimensions

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

Length

34.8 cm

Width

19.0 cm

Height

26.8 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/ 25455/RANGE -40/+120oF'/exterior plate reading 'NEGRETTI & ZAMBRA/TRADEMARK/ LONDON'/yellow interior decal reading 'RCAF STOCK NUMBER/6666-21-559-7005' & 'INVENTORY NO./2669-AF'.

Missing

FRONT GLASS From CA of 10/28/1993 by Tony Missio: No - Complete

Finish

BLACK ENAMEL PAINTED CASING AND BIMETAL PROTECTOR/ METALLIC PARTS/ PLATED INK BOTTLE HOLDER/ BLACK RUBBER/ CLEAR, COLOURLESS GLASS

Decoration

N/A