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An account of the construction and verification of the imperial standard yard for the Royal Society

Abstracts of the papers printed in the Philosophical transactions of the Royal Society of London, 1837-12, Vol.3, p.52-53

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Title:
An account of the construction and verification of the imperial standard yard for the Royal Society
Author: Kater, Henry
Is Part Of: Abstracts of the papers printed in the Philosophical transactions of the Royal Society of London, 1837-12, Vol.3, p.52-53
Description: The scale of the standard, of which an account is given in this paper, is constructed in a manner described in the Philosophical Transactions for 1830. The support is of brass 40 inches long, 17.5 inches wide, and 0.6 of an inch in thickness. A brass plate seven-hundredths of an inch thick was made to slide freely upon the support in a dove-tail groove formed by two side plates, and was then fixed to the support by a screw passing through its middle. This plate carries the divisions, which are fine dots upon gold discs let into the brass; the scale is divided into inches, and there is one inch to the left of zero, which is subdivided into tenths. The scale is the work of Mr. Dollond. The paper is concluded by an account of the precautions which were taken to ensure the accuracy of the plane surface on which the bar rested, while the comparisons were made with the microscopic apparatus described in the Philosophical Transactions for 1821. The results are given in a table.
Publisher: London: The Royal Society
Language: English
Identifier: ISSN: 0365-5695
EISSN: 2053-9142
DOI: 10.1098/rspl.1830.0027
Source: Alma/SFX Local Collection

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