General Information

Serial #

844

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

.1-.2 NON-FERROUS METAL, GLASS OPTICS/.3LEATHER WITH METAL HARDWARE & FABRIC LINING

Dimensions

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

Length

23.5 cm

Width

6.3 cm

Height

15.6 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Thermal & thermal conductivity

Sub-Category

N/A

Manufacturer

AKA

Unknown

Country

England

State/Province

Unknown

City

London

Context

Country

Unknown

State/Province

Unknown

Period

Unknown

Canada

PART OF COLLECTION OF MR. JOSEF ELSENER; HE WAS SWISS BORN & TRAINED AS ARMOURER, EMIGRATED TO CANADA IN 1952 & BECAME BUSINESSMAN. HIS COLLECTION OF MORE THAN 1000 PIECES WAS FOCUSED ON FINELY MADE APPARATUS INCLUDING MACHINE TOOLS, SURVEYING EQUIPMENT, MEDICAL APPARATUS & SOME ELECTRICAL TEST & RADIO EQUIPMENT.

Function

INSTRUMENT USED TO MEASURE HIGH TEMPERATURES WITHOUT CONTACT WITH OBJECT AS WHEN USING KILN OR IN STEEL MAKING.

Technical

EXAMPLE OF WEDGE OPTICAL PYROMETER, WHICH INCORPORATES ROTATING OPTICAL PHOTOSCREENIC WEDGE THAT FUNCTIONS AS NEUTRAL DENSITY FILTER (REF. 2).

Area Notes

Unknown

Details

Markings

.1 INCISED LETTERING READS "THE WEDGE OPTICAL PYROMETER/ AUDREY HOUSE ELY PLACE/ LONDON, E.C.1" & "No 844/ COCHRANE'S PATENT"/.2 INCISED LETTERING READS "EYEPIECE"

Missing

APPEARS COMPLETE

Finish

.1 DARK GREY FINISH WITH GOLD COLOURED PARTS/.2 GOLD & GREY FINISHED/.3 BLACK EXTERIOR, DARK BLUE INTERIOR, METALLIC HARDWARE

Decoration

N/A