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Unpublished paper, 'An account of a protracting pocket sextant' by Colonel Bainbridge

Reference number: AP/27/16

Date: 19 May 1845


Bainbridge describes an invention designed to facilitate and expedite the making of sketches and surveys for military purposes on actual service. By serving at once as a sextant and protractor, as soon as an angle is taken, the invention may at once be laid down on paper by employing its two legs as rulers.

Followed by a covering letter and two pages of figures of the protracting pocket sextant.

Subject: Scientific apparatus and instruments

Communicated by P M [Peter Mark] Roget.

Written by Bainbridge in Ashbourne, Derbyshire [England].

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 5 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'An account of a protracting pocket sextant'.

Reference number
Earliest possible date
19 May 1845
Physical description
Ink on paper
Page extent
7 pages

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Unpublished paper, 'An account of a protracting pocket sextant' by Colonel Bainbridge, 19 May 1845, AP/27/16, The Royal Society Archives, London,, accessed on 24 July 2024

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    Dates: 1768-1989

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