Scope and Contents

Correspondence between the Admiralty and chronometer makers regarding the latter's claims for rewards for making improvements to chronometers. Most of the papers concern the claims made by E.T. Loseby, but there is the repeat of a claim by J.G. Ulrich, in the form of a memorial. The papers also include several pages of calculations and three newspaper cuttings relating to Loseby's claims.

Scope and Contents (1) Correspondence regarding clocks and sympathetic clocks, 1879-1893Correspondence on clocks and sympathetic clocks not belonging to the Royal Observatory:Correspondence between H. Eaton, G.S. Criswick, T. Lewis, W.H.M. Christie, Dent and Co., H.H. Turner and J. Buckney regarding the Westminster Clock, 1879-1887. The topics discussed are poor signals from the clock; inaccurate time; errors and the stopping of the clock; renewal of signal wires; changes in the organisation...

Scope and Contents

Correspondence concerning the clock for the New Palace at Westminster. The correspondents include A. de Morgan, J.F.W. Herschel, W. Whewell and F. Dent. The papers includes pages extracted from the 'Mechanics' Magazine'; pages and two diagrams extracted from 'The Builder'; a paper by E.T. Loseby 'on the Westminster Clock'; and a paper by W.L. Baker on 'the Great Bell of Westminster'. There are also several musical calculations of the notes made by the bell in the New Palace.

Scope and Contents Miscellaneous correspondence regarding the following subjects:Telegraphs announcing errors and failures in the time signal, 1879-1880.Complaints about the time signal sent to Glasgow, the General Post Office and Portsmouth, 1880-1881.T. Lewis and W.H.M. Christie on the correction of the mean solar clock and errors in the 10 o'clock signal, 1884.Explanation by W.H. Preece to H.H. Turner that the failure of the time signal is due to poor batteries,...

Scope and Contents Correspondence and papers concerning refinements and improvements to chronometers, including B. Russell's new escapements, with drawings; J.V. Weber's plan for equalising tension in the main spring, with plans; trials of J.M. Bloxam's gravity clock escapements; J.E. Merritt's compensating pendulum; E.T. Loseby's improvements in clocks, with plans and a description of the Leicester Exchange Clock; S. May's new chronometer balance; J.R. Hall's patent for improved clocks and watches; a hermetic...

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 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.