Rule, parallel

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Ingenium, 1978.0739.001
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OBJECT TYPE: Rolling/25 cm
DATE: Unknown
ARTIFACT NUMBER: 1978.0739.001

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: Ivory edge, ebony rule, brass roller.

Dimensions

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

Length: 31.7 cm
Width: 5.6 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Mathematics
Category: Drawing & measuring instruments
Sub-Category: N/A

Manufacturer

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

Context

Country: Canada
State/Province: Unknown
Period: Late 19th century.
Canada: Late 19th century surveying instruments of Dominion Land surveyor John McLatchie (1842-1908) President of the Dominion Land Surveyors (1892- 1893), whose work included surveys of international boundary, the Alaska boundary, and extensive surveys in western Canada and the maritime provinces.
Function: Used for drawing parallel lines.
Technical: Especially useful in drafting diagrams of graphic statics in connection with structural design, in drawing the parallel sides of buildings, blocking out titles, and in drafting large titles.
Area Notes: Unknown

Details

Markings: Graduated scales on bevelled edges; `1' to `12' in. in 12ths; `1' to `11' in. in1/2 in.; `1' to `6' in. in 3/4 in.; `1' to `12' in. in 10ths; `1' to `46' in 1/8 ths; `1' to `22' in 1/6 ths.
Missing: One corner broken and missing/ Badly soiled/ End caps missing.
Finish: None.
Decoration: None.

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

Unknown Manufacturer, Rule, parallel, Unknown Date, Artifact no. 1978.0739, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1978.0739.001/

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