Bob, plumb

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Ingenium, 2002.0397.001
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OBJECT TYPE: N/A
DATE: 1850–1890
ARTIFACT NUMBER: 2002.0397.001

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: PLUMB BOB WEIGHTED WITH LEAD IN BASE.

Dimensions

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

Length: 4.0 cm
Width: 4.0 cm
Height: 8.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Exploration and Survey
Category: Survey equipment
Sub-Category: N/A

Manufacturer

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

Context

Country: Canada
State/Province: Unknown
Period: THIS PLUMB BOB PRESUMED USED C. 1850S-1900.
Canada: MARCUS SMITH WAS BORN IN NORTHUMBRIA, ENGLAND IN 1831 AND WORKED IN THE CONSTRUCTION AND SURVEY OF EARLY BRITISH RAILWAYS. HE EMIGRATED TO CANADA IN 1849 AND WORKED ON THE GREAT WESTERN AND NIAGARA & DETROIT RIVER RAILWAY (UNTIL 1860) AND INTERCOLONIAL RAILWAY (RESTIGOUCHE NB DISTRICT) (1868-72); FROM 1872-86 SMITH WORKED FOR THE CANADIAN PACIFIC RAILWAY, AND WAS ACTING ENGINEER-IN-CHIEF DURING THE ABSENCE OF SIR SANFORD FLEMING (1876-78). HIS LAST POST WAS AS A CONSULTING ENGINEER TO THE CDN GOV'T. (1886-92) MARCUS SMITH DIED IN 1901. (REF. 1)
Function: SUSPENDED FROM AN INSTRUMENT BY MEANS OF A LINE, A PLUMB BOB IS USED TO DETERMINE THE INSTRUMENT'S VERTICAL CENTRE OR PERPENDICULARITY.
Technical: EXAMPLE OF A PLUMB BOB WHICH HAS BEENLEAD-WEIGHTED.
Area Notes: Unknown

Details

Markings: No markings visible.
Missing: MISSING SUSPENSION HOOK AND LINE.
Finish: DULL BRASS COLOUR EXTERIOR IS LIGHTLY PITTED; SOME GREEN CORROSION DEPOSITS EVIDENT
Decoration: N/A

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

Unknown Manufacturer, Bob, plumb, circa 1850–1890, Artifact no. 2002.0397, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2002.0397.001/

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