General Information

Serial #

105762

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

FERROUS METAL BASE, BIMETALLIC STRIPS/ METAL COVER, CLOCK & DRUM, PEN ARM, PARTS/ GLASS FRONT WINDOW & HEMISPHERICAL WINDOW FOR BIMETAL ARRAY

Dimensions

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

Length

29.2 cm

Width

14.0 cm

Height

24.5 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

FUESS

Country

Germany

State/Province

Unknown

City

Berlin-Steglitz

Context

Country

Canada

State/Province

Ontario

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 IT CLOSED IN 1995. PNFI STUDIED GROWTH OF VARIOUS SPECIES & FOREST MANAGEMENT, PARTICULARLY FIRE PREVENTION & SUPPRESSION.

Function

INSTRUMENT USED TO MEASURE INTENSITY OF SUNLIGHT BY MEANS OF DEFORMATION OF BIMETALLIC SENSOR BY SUN'S HEAT.

Technical

EXAMPLE OF ROBITZSCH TYPE OF ACTINOGRAPH, WHICH EMPLOYS 3 BIMETAL STRIPS (CENTRE BIMETAL IS BLACK, OTHERS ARE WHITE). AS RADIATION FROM SUN HEATS STRIPS, BLACK BIMETALIS AFFECTED DIFFERENTLY THAN WHITE, MOVING PEN IN PROPORTION TO DIFFERENCE IN TEMPERATURE.

Area Notes

Unknown

Details

Markings

METAL PLATES ON BASE READ "R./ FUESS/ BERLIN-STEGLITZ/ Nr. 105762" & "Zudiesem Apparat gehort/ Registrierpapier R. Fuess/ No 157a"/ PLATE ON COVER READS "R./ FUESS/ BERLIN-STEGLITZ/ Nr. 105762"

Missing

PEN NIB

Finish

ORIGINAL FINISH APPEARS TO BE COVERED BY GREY PAINT/ BRASS COLOURED DRUM/ PLATE POSTS & PARTS/ COLOURLESS TRANSPARENT GLASS

Decoration

N/A