Scope and Contents

Regulations regarding the loan and rating of chronometers. The volume includes a report of a committee of the Board of Longitude on this subject; regulations on accounts; publication of different chronometer ratings; and details of E.J. Dent's patent for improvements in chronometers and other timekeepers, with plans and drawings. The correspondents are J. Barrow, F. Beaufort, C. Wood, R. Sheepshanks, F. Molyneux and C. Frodsham.

Scope and Contents

Correspondence and papers concerning valuations, exchanges and sales of chronometers by the Admiralty and the Royal Observatory. There are tables of the ratings of individual chronometers. The correspondents include F. Beaufort and J. Barrow.

Scope and Contents Correspondence between the Admiralty and chronometer makers regarding the latter's claims for rewards for making improvements to chronometers. The claims were made principally by J.S. Eiffe and J.G. Ulrich, although there are also claims from R. Molyneux, M.R. Parkinson and C. Frodsham. The correspondents include F. Beaufort, R .Willis, C. Wheatstone, J. Barrow and many of the more famous chronometer and watch-makers. The volume includes unconfirmed minutes of the Royal Society, 10 June...

Scope and Contents

Correspondence on errors and rates of chronometers, including the foundation of time balls at Demerara and C.P. Smyth's account of the Time Ball at the Royal Observatory, Edinburgh. There are also enquiries on various chronometers, including those used on the 'Bounty'. The correspondents include F. Beaufort, C.P. Smyth and E. Sabine.

Scope and Contents

Correspondence and papers concerning improvements in chronometers, concerned chiefly with E.T. Loseby's chronometer. The volume includes correspondence on Loseby's new time-keeper in the 'Journal of the Society of Arts'; a patent for his improvements; and printed correspondence on its claims. There is also a paper by E.B. Denison 'on some recent improvements in clock escapements'; pieces on G. Philcox and J. Ontan's escapements; and letters by F. Beaufort, F. Dent and W.H. Miller.

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...

Scope and Contents

Correspondence and papers concerning plans for improvements to clocks and chronometers, including extracts from R. Robert's patent, with plans for clocks and chronometers; articles from the 'Patent Journal and Inventors' Magazine'; improved pendulums; compensation balances and the use of electricity for clocks; a statement on the Royal Exchange Clock; and the requirements for chronometers on an Arctic expedition. The correspondents include C. Wheatstone and F. Beaufort.

Scope and Contents Correspondence and papers concerning plans for improvements to clocks and chronometers, including improved escapements by E.B. Fennessey; an improved pendulum; E.T. Loseby's improvements in time-keepers; daily rates and tests of Loseby's clock; a report on Loseby's chronometers in the 'Journal of the Society of Arts'; R. Robert's Alpha Clock; A. Bain's short history of electric clocks; and C. Shepherd's application of electromagnetism for motors for clocks. The correspondents include M.F....

Scope and Contents

Correspondence with clockmakers and other papers concerning new clocks and improvements. There are papers on the Royal Exchange and Hamburg clocks; the rating of the Royal Exchange Clock for 1848; ratings of various chronometers; elasticity of balance springs; improved and new escapements; E.J. Dent's magneto-electric dial; and improved pendulums by J.G. Ulrich and E.T. Loseby. The correspondents include H.C. Schumacher, Lord Wrottesley, F. Beaufort and R. Sheepshanks.