Calculator, concrete

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Ingenium, 2003.0668.001
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OBJECT TYPE: N/A
DATE: Unknown
ARTIFACT NUMBER: 2003.0668.001

MANUFACTURER: Lockhart Rule Co.
MODEL: Unknown
LOCATION: St. Louis 1, Missouri, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: plastic

Dimensions

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

Length: 17.2 cm
Width: 3.4 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Industrial Technology
Category: Civil engineering
Sub-Category: N/A

Manufacturer

AKA: Lockhart
Country: United States of America
State/Province: Missouri
City: St. Louis 1

Context

Country: Canada
State/Province: Unknown
Period: W.A. Ramsay was Chief Architect, Department of Transport (D.O.T.) between 1952 & 1974.
Canada: Unknown
Function: similar to slide rule; used for calculating quantity (in cubic yards) of poured concrete required to build wall or other structure of known dimensions
Technical: Unknown
Area Notes: Unknown

Details

Markings: lettering on back reads: ""Concrete/Calculator"; lettering on sliding strip reads: "MADE IN U.S.A."; lettering inside fixed strip includes: "Mfg. by Lockhart Rule Co., 721 1/2 Chestnut St., St. Louis 1, Mo."; lettering on outside surface of fixed strip reads: "MIRON & FRÈRES LTÈE/LTD./2201 Chemin St-Michel -- MONTREAL 38/RAymond - 7 - 2811"
Missing: N/A
Finish: black numbered graduations; black & red lettering on white
Decoration: none

CITE THIS OBJECT

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

Lockhart Rule Co., Calculator, concrete, Unknown Date, Artifact no. 2003.0668, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2003.0668.001/

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