General Information

Serial #

N/A

Part Number

1

Total Parts

18

AKA

N/A

Patents

N/A

General Description

.1-.2 WOOD CASINGS WITH METAL PARTS, LEATHER STRAPS & HANDLES/.1 GLASS METER WINDOWS/.1 PT - METAL & SYNTHETIC/.3 WOOD WITH METAL HEAD & PARTS/.4-.7 WOOD REELS WITH METAL & SYNTHETIC WIRING/.8-.12 METAL/.13 METAL WIRE WITH SYNTHETIC COVERING/.1-.2,.4 CANVAS & LEATHER CASES WITH METAL HARDWARE, FELT-LIKE LINING

Dimensions

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

Length

N/A

Width

N/A

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Mining and Metallurgy

Category

Mineral exploration

Sub-Category

N/A

Manufacturer

AKA

Evershed Vignoles

Country

England

State/Province

Unknown

City

London

Context

Country

Unknown

State/Province

Unknown

Period

1930S-1959S

Canada

BRITISH MADE GEOPHYSICS INSTRUMENT ACQUIRED BY PROF. M.K. SEGUIN OF GEOLOGY DEPT. OF UNIVERSITY OF LAVAL, QUEBEC FOR ITS HISTORICAL INTEREST.

Function

INSTRUMENT USED FOR MEASURING GROUND RESISTANCE IN GEOPHYSICAL EXPLORATION, SPECIFICALLY THE NEAR-SURFACE RESISTIVITY OF THE EARTH.

Technical

MEGGERS WERE ORIGINALLY DEVELOPED FOR TESTING CABLE INSULATION IN POWER TRANSMISSION SYSTEMS. HOWEVER, THEINSTRUMENT COULD BE MODIFIED TO MEASURE GROUND RESISTANCE IN GEOPHYSICAL EXPLORATIONS. THIS NON-ELECTRONIC UNIT CONSISTS OF A MANUALLY CRANKED GENERATOR COUPLED WITH A PASSIVE VOLTAMETER. IT WAS USED IN CANADIAN APPLICATIONS DURING 1930 TO 1950S.

Area Notes

Unknown

Details

Markings

.1 PLATE READING "MEGGER"/ REGISTERED TRADE NAME/ EARTH/ RESISTANCE TESTER/ PATENT NO. 249615/ No. 442418 100 ohms/ MADE IN ENGLAND"; BLACK LETTERING ON METER FACE READS "OHMS/ REG. TRADE MARK "MEGGER"/ No 443418/ MADE IN ENGLAND"/.2 PLATE READING "GENERATOR UNIT No 443404/ FOR GEOPHYSICAL MEGGER EARTH TESTER/ TO BE USED WITH OHMMETER UNIT No 443418/ PATENT No 392296/ EVERSHED &VIGNOLES LTD./ LONDON W.4"

Missing

UNKNOWN - APPEARS COMPLETE From CA of 11/22/2001 by Matthew Bruce: Yes - .006 missing connector

Finish

.1-.2 BROWN STAINED & COATED WOOD; BLACK PAINTED & PLATED METAL PARTS; COLOURLESS TRANSPARENT GLASS & WHITE METER FACES/.1 BLACK STRAP/.2 BLACK PAINTED LEGS & BROWN LEATHER HANDLE/.1 PT - BLACK PAINTED METAL & BLACK CABLE/.3 COATED WOOD, BLACK PAINTED METAL/.4-.7 BLACK PAINTED WOOD, BLACK WIRE COVERING/.8-.11 METALLIC GREY/.12 REMNANTS OF BLACK PAINT/.13 BLACK/ CASES: GREEN CANVAS, BROWN LEATHER, PLATED METAL

Decoration

N/A