General Information

Serial #

33.066

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

NON-FERROUS METAL BASE, COVER, DRUM, PEN ARM/ GLASS WINDOW FOR CHART/ PAPER CHART

Dimensions

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

Length

27.0 cm

Width

13.5 cm

Height

16.8 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Forestry

Category

Fire fighting

Sub-Category

N/A

Manufacturer

AKA

Negretti Zambra

Country

England

State/Province

Unknown

City

London

Context

Country

Canada

State/Province

Unknown

Period

Unknown

Canada

FROM COLLECTION OF FORESTRY & FIRE-FIGHTING EQUIPMENT USED BY & ACQUIRED FROM PNFI. FOUNDED IN 1918, IT WAS OLDEST CONTINUOUSLY OPERATING FORESTRY-RESEARCH ESTABLISHMENT IN CANADA UNTIL ITCLOSED IN 1995. PNFI STUDIED GROWTH OF VARIOUS SPECIES & FOREST MANAGEMENT, PARTICULARLY FIRE PREVENTION SUPPRESSION.

Function

INSTRUMENT THAT MEASURES & RECORDS ATMOSPHERIC TEMPERATURE THROUGH DEFORMATION OF BIMETALLIC SENSOR. THIS EXAMPLE WAS USED IN FORESTRY STATIONS TO PROVIDE CONTINUOUS RECORD OF TEMPERATURE IN CASES WHERE OBSERVER WAS NOT ON DUTY AT ALL TIMES.

Technical

TEMPERATURE RECORDING DEVICE WITH ITS HELICAL COIL BIMETAL SENSOR INSIDE INSTRUMENT CASING. EXPANSION & CONTRACTION OF BIMETAL COIL CAUSED PEN TO MOVE UP OR DOWN ON CHART WOUND AROUND CLOCK DRUM.

Area Notes

Unknown

Details

Markings

INTERIOR PLATE INCISED "33.066"/ WHITE STENCILLED "33066" ON COVER TOP/ GREEN NUMBERING & SCALE MARKINGS ON CHART & LETTERING READING "No. 139A NEGRETTI & ZAMBRA CANADA LTD.

Missing

INK BOTTLE

Finish

REMNANTS OF YELLOW PAINT ON BASE, YELLOW PAINTED CASING INTERIOR/ COPPER COLOURED COVER/ GOLD COLOURED PARTS/ COLOURLESS TRANSPARENT GLASS/ WHITE? PAPER WITH GREEN MARKINGS

Decoration

N/A