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Papers on clock and chronometer improvements, 1836 - 1844

Reference Code: GBR/0180/RGO 6/585

Scope and Contents

Correspondence and papers concerning proposed improvements in clocks and chronometers. The correspondents include F. Baily, F. Beaufort, G. Fisher, A. de Morgan, R. Sheepshanks and W. Tite. The volume includes a paper, originally from 'The Nautical Magazine', titled 'Magnetic Experiments on Chronometers'; a paper, originally from 'The Nautical Magazine', titled 'Glass Balance-Springs to Chronometers'; extracts from 'The County Herald' of October and November 1837 on improvements in chronometers; printed sets of tables of observations made at the Royal Observatory in the years 1832 and 1833 of a clock by E.J. Dent; diagrams relating to a fly wheel pendulum; a paper by Airy titled 'On a new construction of the Going-Fusee' and a review of it in the 'Cambridge Chronicle' of 7 March 1840; extracts from a pamphlet on Paddison's machines for making chronometer parts; an abstract of E.J. Dent's paper on pendulums presented to the British Association for the Advancement of Science; a page extracted from the 'Journal of the Belles Lettres' on E.J. Dent's 'Patent Improvement of Chronometers'; printed specifications from 'Dent's Patent Improvement of Chronometers', with an appendix 'On the Errors of Chronometers and Explanation of a New Construction of the Compensation Balance'; diagrams and calculations of the effect of different positions of the compensation-bar in compensation balances; diagrams by Barraud and Lund showing an invention to counteract the error produced in chronometers by extreme temperatures; copies of E.J. Dent's 'Approximate Table of Longitudes in Time' from the meridian at Greenwich and 'Dent's Table for the Equation of time 1843'; papers relating to the clock for the Royal Exchange; papers from an unknown journal on pendulum escapements; and various diagrams of clock escapements and other improvements in chronometers.


  • Creation: 1836 - 1844


Conditions Governing Access

From the Management Group:

Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (


1 volume(s) (1 volume)

Language of Materials


Former / Other Reference


Finding aid date

2006-01-06 11:51:11+00:00

Includes index.

Repository Details

Part of the Cambridge University Library Repository

Cambridge University Library
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Cambridge CB3 9DR United Kingdom