General Information

Serial #

609

Part Number

1

Total Parts

11

AKA

N/A

Patents

N/A

General Description

PRIMARILY METAL CONSTRUCTION. GLASS OPTICS & LEVEL TUBE ON.1 STORAGE CASES ARE WOOD:.1PT &.7PT CASES HAVE METAL EXTERIOR. SEE SUPP.INFO. FOR INDIVIDUAL ASSESSMENTS

Dimensions

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

Length

82.0 cm

Width

63.0 cm

Height

27.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Physics

Category

Geophysics

Sub-Category

N/A

Manufacturer

AKA

Askania

Country

Germany

State/Province

Unknown

City

Berlin-Friedenau

Context

Country

Canada

State/Province

Unknown

Period

THIS BALANCE USED BETWEEN 1928-1935. THIS TYPE OF INSTRUMENT USED DURING 1920S-1930S

Canada

ONE OF TWOEOTVOS-TYPE TORSION BALANCES PURCHASED FOR JOINT USE OF DOMINION OBSERVATORY & GEOLOGICAL SURVEY. THESE INSTRUMENTS WERE AMONG THE FIRST IN CANADA. A.H. MILLER (1886-1962), USED THESE BALANCES, AND OTHER EQ. IN SOME OF THE EARLIEST GRAVITY SURVEYS AND ISOSTACY STUDIES CONDUCTED IN CANADA (REF.2) SEE ALSO 872121

Function

USED TO MEASURE THE GRADIENT OF GRAVITY IN A HORIZONTAL DIRECTION

Technical

TORSION BALANCE DEV'T BY BARON ROLAND VON EOTVOS OF HUNGARY, AND BECAME A MAJOR TOOL OF GEOPHYSICAL PROSPECTING IN L.1920S-E.1930S. THE ASKANIA TORSION BALANCE WAS DESIGNED TO RECORD OBSERVATIONS PHOTOGRAPHICALLY, AS WELL AS PERMITTING VISUAL OBSERVATIONS.

Area Notes

Unknown

Details

Markings

I. PLATE ON UNIT FRONT READS: 'Attention/ Observe succession/ unclamping [/ 1 at the tubes/ II at the box/ clamping]/ 1 at the box/ II turn back 1/2 rotation/ III at the tubes/ IV finally at the box.' STAMPED INTO ONE SIDE PANEL OF CASING IS: '[Askania logo]/ Askaniawerke A.G. BAMBERK Berlin-Friedenau Nr. 97687/ Made in Germany/ 609/1'. PHOTOGRAPHIC PLATEMOUNTING CONTROLS 'visualle' & 'photo'; SCALE MOUNTED BELOW BED DIVIDED 0-200 (TO CORRESPOND WITH.3-.4). TORSION WIRE BEAMS, ETC. BEAR NUMBER/LETTER DESIGNATIONS. GLASS VIAL OF TUBE LEVEL DIVIDED BY SINGLE INCREMENTS & LABELLED '0-25'

Missing

APPEARS COMPLETE, HOWEVER THE BALANCE WAS OPERATED WITHIN A PORTABLE HUT, IN ORDER TO SHIELD IT FROM WIND, TEMP., ETC. From CA of 02/05/2002 by Matthew Bruce: No - appears complete

Finish

MOST PIECES HAVE GREY ENAMEL PAINTED FINISH. EXTERIOR OF ALL CRATES AND STORAGE CASES IS GREY; STAINED & VARNISHED WOOD INTERIORS. SMALLER ACCESSORY CASES ALL STAINED & VARNISHED. .

Decoration

N/A