General Information

Serial #

1143

Part Number

1

Total Parts

78

AKA

N/A

Patents

N/A

General Description

METAL, POSSIBLY INVAR

Dimensions

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

Length

40.0 cm

Width

26.8 cm

Height

4.6 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Metrology

Category

Length

Sub-Category

N/A

Manufacturer

AKA

Johansson

Country

Sweden

State/Province

Unknown

City

Eskilstuna

Context

Country

Canada

State/Province

Ontario

Period

PROBABLY USED C. 1930S-1980S. THIS TYPE OF GAUGE BLOCK USED SINCE LATE 1800S.

Canada

USED BY NATIONAL RESEARCH COUNCIL LABS, OTTAWA ONT.

Function

TO CHECK CALIBRATION OF PRECISE MEASURING EQUIPMENT OR MACHINED PIECES, TO VERIFY THEY ARE WITHIN SET LIMITS OR TOLERANCES.

Technical

TYPE SAMPLE OF GAUGE BLOCKS DESIGNED FOR ESTABLISHING AND VERIFYING PRECISE LENGTH; SIMILAR BLOCKS FOR ANGLES WERE ALSO AVAILABLE. THEY CAME INTO SIGNIFICANT INDUSTRIAL USE DURING WW 1. THESE BLOCKS WERE MFD. FOR USE AT TEMPERATURES + 66 DEGREES F - EXTREMES OF TEMPERATURE, AND ESPECIALLY HUMIDITY COULD AFFECT LENGTH.

Area Notes

Unknown

Details

Markings

MFR'S PLATE: 'C.E. JOHANSSON/ ESKILSTUNA-SWEDEN/ SW. PATENT/ 17017/ MEDAILLE D'OR/ -LIEGE 1905.-/ ENGL. PATENT/ JUNE 1901/ THE "ARNBERG" PRIZE/ ROYAL SWEDISH ACADEMY/ OF SCIENCE./ STOCKHOLM 1908./ MEDAILLE DE VERMEIL/ SOCIETE D'ENCOURAGEMENT/ POUR L'INDUSTRIE NATIONALE/ PARIS 1903' STAMPED INTO PLATE/ '10' INCISED ON INSIDE LOWER EDGE OF LID/ '+66[DEGREES]F' STAMPED INTO INSIDE TOP EDGE OF CASE BASE; '1143' STAMPED INTO LOWER EDGE/ 'PLEASE RECORD THE NUMBER OF THE SET OF GAUGE WHEN USING' HANDWRITTEN ON CARD TACKED INSIDE BOX LID/ 'GA 118' HANDWRITTEN IN GREEN PAINT ON CASE TOP; '1143' HANDWRITTEN IN BLACK PAINT ON BOX EDGE. *SUPP.INFO.

Missing

3 BLOCKS- 0.123, 0.137 & 2 INCH. MISSING

Finish

EXTREMELY SMOOTH, POLISHED SILVER METAL BLOCKS, COATED WITH OIL OR OIL-LIKE SUBSTANCE. CASE IS STAINED & VARNISHED; GREEN FELT PADS FITTED INSIDE LID.

Decoration

N/A