General Information

Serial #

1136

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD MOUNT AND GLASS SCALE/ GLASS THERMOMETER/ WOOD CASE WITH BRASS HARDWARE/ PAPER SCALE BACKING/ MERCURY/ BRASS STRIP

Dimensions

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

Length

35.5 cm

Width

7.4 cm

Height

7.7 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

IN 1878, 2 TYPES OF NEGRETTI & ZAMBRA MAXIMUM THERMOMETERS (SEE BELOW) WERE BEING USED BY THE CANADIAN METEOROLOGICAL SERVICE (KINGSTON, G., INSTRUCTIONS TO OBSERVERS CONNECTED WITH THE METEOROLOGICAL SERVICE OF THEDOMINION OF CANADA, 1878, PP. 11, 54-57)

Function

AN INSTRUMENT THAT MEASURES TEMPERATURE BY MEANS OF A COLUMN OF MERCURY, WHICH EXAPNDS & CONTRACTS IN LENGTH AS THE TEMPERATURE RISES & FALLS.

Technical

IN 1852 N & Z PATENTED 2 MAXIUMUM THERMOMETERS, BOTH WITH A BENT TUBE & SPHERICAL BULB. ONE HAD THE CONSTRICTED NECK NOW UNIVERSAL IN MAXIMUM THERMOMETERS; THE OTHER HAD A VALVE IN THE BENT TUBE WHICH PREVENTS THE MERCURY FROM FALLING PAST THE MAXIMUM POINT. IT IS NOT CLEAR WHICH TYPE 870653 CORRESPONDS TO.

Area Notes

Unknown

Details

Markings

Etched black lettering in scale reading 'NEGRETTI & ZAMBRA'S PATENT/ 11 HATTON GARDEN LONDON', '1136', and marked for -30 to 120/black markings on thermometer reading '1136'/handwritten black 'Sun Thermometer' on case/brass strip incised '29.929', '29.928', 'Full', 'New 29.968'.

Missing

From CA of 12/29/1993 by Tony Missio: No - Complete

Finish

DARK BROWN MOUNT WITH CLEAR AND COLOURLESS SCALE/ CLEAR & COLOURLESS THERMOMETER GLASS/ WHITE PAPER/ BROWN CASE/ METALLIC BULB.

Decoration

N/A