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Ingenium, 2012.0084.002
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OBJECT TYPE: spherometer
DATE: 1904–1905
ARTIFACT NUMBER: 2012.0084.002

MANUFACTURER: NALDER BROS. & CO.
MODEL: Unknown
LOCATION: Westminster, England

More Information

General Information

Serial #: 25085
Part Number: 2
Total Parts: 4
AKA: N/A
Patents: N/A
General Description: Aluminum (possibly) scale; brass (possibly) base

Dimensions

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

Length: 8.6 cm
Width: 7.7 cm
Height: 4.3 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Astronomy
Category: Miscellaneous
Sub-Category: N/A

Manufacturer

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

Context

Country: Canada
State/Province: Ontario
Period: c. 1905-1970
Canada: A precision measuring device used at the Dominion Observatory, Ottawa (c. 1905-1970). This spherometer may have been used on a variety of astronomy, survey or metrology instruments employed there.
Function: The micrometer screw wheel screws into the base. Turning the wheel moves the central pin up or down and measurements show on the scale mounted on the base.
Technical: Unknown
Area Notes: Unknown

Details

Markings: On front leg: a scale with 0 in the middle, divisions and the numbers 10 and 20 above it, and the same below/ On the proper left leg: the number "514" scratched into the finish/ On the proper right leg in white letters: "NALDER BROS. & CO./ WESTMINSTER/ No. 25,025"
Missing: Appears complete
Finish: Overall black finish with brass pins at the ends of the legs.
Decoration: N/A

CITE THIS OBJECT

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

NALDER BROS. & CO., Base, circa 1904–1905, Artifact no. 2012.0084, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/item/2012.0084.002/

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