Comparator

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Ingenium, 1982.0405.001
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OBJECT TYPE: SHEEPSHANK
DATE: 1874
ARTIFACT NUMBER: 1982.0405.001

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: England

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: METAL - PROB. BRASS & STEEL?

Dimensions

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

Length: 98.0 cm
Width: 64.5 cm
Height: 27.2 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Metrology
Category: Precision tools
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: England
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: USED FROM 1874 BUT WAS OBSOLETE BEFORE BEING TRANSFERRED TO NRC IN 1934
Canada: USED AT INTERVALS FOR THE STATUATORY COMPARISON OF THE STANDARD DOMINION YARD WITH ITS PARLIAMENTARY COPIES IN CANADA BUT WAS SUPERCEDED BY OTHER DEVICES. WAS PRESERVED FOR MANY YEARS, MR. E.O.WAY, DIRECTOR, WEIGHTS & MEASURES, UNTIL HANDED OVER TO NRC IN 1934. SEE ADDITIONAL INFO. IN SUPP. INFO. FILE.
Function: USED TO COMPARE THE DOMINION STANDARD YARD WITH ITS PARLIAMENTARY COPIES [THE STANDARD 'B' COPY IS CATALOGUED AS PART OF THE NMSTC COLLECTION AS 880251].
Technical: DURING COMPARISONS THE BARS WERE SUPPORTED ON EQUALIZING FRAMES CONTAINING EIGHT ROLLERS. THE MICROSCOPE BEAM IS OF SLATE, AND OIL LAMPS WERE USED TO ILLUMINATE THE FIELDS WITH THE AID OF PIERCED RIGHT-ANGLED PRISMS. [REF 1]
Area Notes: Unknown

Details

Markings: N/A
Missing: N/A
Finish: BASE PAINTED GREY
Decoration: NONE

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Unknown Manufacturer, Comparator, circa 1874, Artifact no. 1982.0405, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1982.0405.001/

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