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Time measuring instruments

 Subject
Subject Source: UK Archival Thesaurus

Found in 102 Collections and/or Records:

 File

Trials and ratings of chronometers, 1822 - 1835

Reference Code: GBR/0180/RGO 5/239
Scope and Contents Lists of chronometers deposited at the Observatory for trials, with the daily ratings of each piece, covering the periods 1822-1825 and 1832-1835.
Dates: 1822 - 1835
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

Trials of Harrison's chronometers, 1766 - 1771

Reference Code: GBR/0180/RGO 4/311
Scope and Contents Observations and comparisons during the trials of John Harrison's chronometers (H1, H2, H3 and H4) and Kendall I, with mean solar time, 1766-1767, and the rating of the Royal Observatory transit clock, 1771. The volume is comprised largely of tables of measurements, with some descriptions of how the results were achieved.
Dates: 1766 - 1771
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).
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The UK Archival Thesaurus has been integrated with our catalogue, thanks to Kings College London and the AIM25 project for their support with this.