Maclear, Thomas, Sir, 1794 - 1879 (Knight, astronomer)
Person
Found in 3 Collections and/or Records:
File
Correspondence on chronometers, 1865 - 1868
File
Reference Code: GBR/0180/RGO 6/601
Scope and Contents
Correspondence on the workings of, packing of, repairs to, ratings of, and transactions involving chronometers. The volume covers chronometer trials, 1840-1865; trials for chronometer ratings for the Indian Stores Department, the Italian government and mail watches; the influence of air pressure on clock rates; J.B. Harbard's description of clock rates; a time piece for measuring a ship's speed; a clock for Ipswich Town Hall; and a programme of horological instruments by M.F. Dent for the...
Dates:
1865 - 1868
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).
Filtered By
- Subject: Clocks X
Additional filters:
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- Atlantic Ocean 1
- Australia 1
- Birmingham 1
- Cardiff 1
- Chennai 1
- Devonport 1
- Electricity 1
- Glasgow 1
- Italy 1
- London 1
- Newcastle upon Tyne 1
- Nice 1
- Oxford 1
- Paris 1
- Port Elizabeth 1
- Telegraphy 1
- Time 1
- Wellington 1
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