General Information

Serial #

Y.26723

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

GLASS THERMOMETER/ CERAMIC SCALE/ METAL HARDWARE/ MERCURY

Dimensions

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

Length

27.3 cm

Width

3.6 cm

Height

1.8 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

Unknown

State/Province

Unknown

Period

Unknown

Canada

FROM THERMOMETER COLLECTION OF R.C. JACOBSEN OF MSC (C. 1931- 1951). HE TOOK PART IN CANADIAN INTERNATIONAL POLAR YEAR EXPEDITION TO COPPERMINE, NWT (1932); WAS INVOLVED IN DESIGN OF MSC RADIOSONDE IN 1930'S; DESIGNED METEOINSTRUMENTS FOR AIRCRAFT WHICH HE USED TO MAKE OBSERVATIONS OVER LAKE ONTARIO IN HIS OWN PLANE.

Function

INSTRUMENT USED TO MEASURE TEMPERATURE BY MEANS OF ITS EFFECT ON COLUMN OF MERCURY IN GLASS.

Technical

ACCORDING TO BRITISH MET. OFFICE MANUAL, SOLID STEM THERMOMETERS WERE ATTACHED TO PORCELAIN & OTHER MOUNTS FOR EXTRA STRENGTH & ROBUSTNESS. IN BRITAIN SUCH THERMOMETERS WERE USED IN SCREENS ABOARD SHIP & FOR MEASURING SEA TEMPERATURES. VERY SIMILAR INSTRUMENT WITH HOLDER APPEARS IN N&Z 1937 CATALOGUE.

Area Notes

Unknown

Details

Markings

INCISED BLACK LETTERING READING "NEGRETTI & ZAMBRA, Scientific Instrument Makers, LONDON" & "Y.26723", WITH MFR.'S LOGO & "F"/ BLACK SCALE MARKINGS FOR -40 TO +110/ INCISED BLACK SCALE MARKINGS ON THERMOMETER WITH "NPL 31 Y26723" & MFR.'S LOGO

Missing

COMPLETE

Finish

COLOURLESS TRANSPARENT THERMOMETER WITH WHITE BACK/ WHITE CERAMIC/ PLATED METAL/ METALLIC BULB

Decoration

N/A