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Clocks

 Subject
Subject Source: UK Archival Thesaurus

Found in 5 Collections and/or Records:

 File

Correspondence on chronometer errors and rates, 1849 - 1854

 File
Reference Code: GBR/0180/RGO 6/598
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.

Dates: 1849 - 1854
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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 File

Correspondence on galvanic time, 1855 - 1858

 File
Reference Code: GBR/0180/RGO 6/613
Scope and Contents Correspondence and related papers on the communication of time by the Post Office telegraph. There are papers on the trials, costs and tests of clocks on the network; the regulation of clocks; proposals for time signals to be sent to naval dockyards from Greenwich; time balls at Portsmouth, Devonport, Sheerness, Glasgow, Hamburg, Liverpool and the City Observatory, London; and a report by Airy on the workings of the Devonport Time Ball and sketches of its galvanic arrangement. The...
Dates: 1855 - 1858
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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 File

Correspondence on time balls and signals, 1861 - 1866

 File
Reference Code: GBR/0180/RGO 6/615
Scope and Contents Correspondence and related papers on the time signal and the time ball service. There are various papers on the signalling of time by a falling ball or by cannon fire at Birmingham, Cardiff, Devonport, Edinburgh, Glasgow, Madras, Newcastle, Nice and the Palais Royale, Paris; proposals for time balls at Wellington (New Zealand), Ipswich, and Port Elizabeth; proposals for clocks and bells in Worcester; details of local time signals in 'The Scotsman', 'Daily Review', 'Glasgow Daily Herald',...
Dates: 1861 - 1866
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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 Sub-Series

Correspondence with telegraph companies, 1860 - 1866

 Sub-Series
Reference Code: GBR/0180/RGO 6/630
Scope and Contents Correspondence with various telegraph companies concerned mainly with the failure of time signals, the refurbishment and repairs of wires, the connections with the Royal Observatory, and the trials of overhead wires. There are papers regarding tests on the Dartford Earth current wires; the damage and restoration of telegraph wires due to snowstorms; Airy's details of telegraphic equipment and methods employed at the Royal Observatory, found in 'Description of the galvanic connexions'; a...
Dates: 1860 - 1866
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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
 File

Papers on chronometer improvements, 1828 - 1869

 File
Reference Code: GBR/0180/RGO 6/593
Scope and Contents Correspondence and papers concerning improvements and refinements to chronometers, including escapements by G.W. Linderoth, J. Gray, J.C. Bloxam, and W. Eaton; I. Hermann's escapement, with explanations and plans; C.F. Frodsham's experiments on compensator balances; E. Huntingdon's compensating pendulum; a model face of an astronomical clock; H.B. James on his invention, 'the compensator'; extracts from a report on Danish exhibits at chronometer exhibitions; correction of a clock by magnetic...
Dates: 1828 - 1869
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 mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).