Varley, Cromwell Fleetwood, 1828 - 1883 (electrical engineer)
Person
Found in 7 Collections and/or Records:
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).
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).
Sub-Series
Papers on determining galvanic longitudes, 1858 - 1859
Sub-Series
Reference Code: GBR/0180/RGO 6/638
Scope and Contents
Correspondence and papers regarding the determination of longitudes by means of telegraph. There are papers on the difference in longitude between Paris and Greenwich, with observations and transits for clock errors; U.J.J. Le Verrier's determination of the longitude of Le Havre; A. Loussedat's determination of the difference in longitude between Toulouse and Montpellier; the longitude of Glasgow; and the difference in longitude between Altona and Schwerin. There are also papers relating to...
Dates:
1858 - 1859
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 galvanism and electric clocks, 1873 - 1878
File
Reference Code: GBR/0180/RGO 6/632
Scope and Contents
Correspondence and papers concerning galvanism and electric clocks. The correspondents include C.F. Varley, C.V. Walker and W. Fronde. The papers include a printed list of the charges for receiving the time signals on private lines; a diagram of the galvanic wires running from Greenwich Railway Station; pages from 'Nature' on the Greenwich Time Signal system; an extract, originally from the 'Mining and Scientific Press', titled 'New Break-Circuit Chronometer', concerning a chronometer...
Dates:
1873 - 1878
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 telegraphic communications, 1855 - 1858
File
Reference Code: GBR/0180/RGO 6/628
Scope and Contents
Correspondence and papers on telegraphic communications, including the conditions of use of telegraph wires between the Admiralty and the South Eastern Railway; proposed arrangements of galvanic wires and circuits for working the sympathetic clocks; the circuit and plan of the galvanic wires in the Lombard Street Post Office; various improvements and efficiencies in the telegraph; a report on the working of galvanic apparatus at the Royal Observatory; sketches of the automatic switch for 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
Papers on telegraphic communications, 1858 - 1860
File
Reference Code: GBR/0180/RGO 6/629
Scope and Contents
Correspondence and papers on telegraphic communications, including the failure of signals and breakdown of equipment; the agreement for use of the telegraph between the Admiralty and South Eastern Railway; renewal of telegraph wires in Greenwich Park; three samples of proposed cables, one being a specimen of Caoutchouc cable, with patent; notes on the arrangement of overhead wires; adjustments to the Greenwich sympathetic clock; R.L. Jones' system of clock regulation by electricity; a theory...
Dates:
1858 - 1860
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 the galvanic longitude of Edinburgh, 1855 - 1858
File
Reference Code: GBR/0180/RGO 6/636
Scope and Contents
Papers regarding the operation to discover the longitude of Edinburgh by means of electric telegraph. The papers include material on the arrangement of stars for observation; calculations of longitude at Edinburgh deduced from observations; and instructions and arrangements for those involved in the tests, including J. Washington, W. Ellis, C.V. Walker, C.P. Smyth, J.C. Clark and C.F. Varley. There are also letters on the longitude of Paris by U.J.J. Le Verrier, of Brussels by L.A. Quetelet,...
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).
Filtered By
- Subject: Electricity X
Additional filters:
- Subject
- Telegraphy 6
- Clocks 5
- Glasgow 3
- Atlantic Ocean 2
- Devonport 2
- Edinburgh 2
- Longitude 2
- Paris 2
- United States 2
- Adelaide 1
- Altona 1
- Australia 1
- Baltiysk 1
- Berlin 1
- Brussels 1
- Cambridge 1
- Chicago 1
- Deal 1
- Fredericton 1
- Hamburg 1
- Le Havre 1
- Liverpool 1
- London 1
- Melbourne 1
- Montpellier 1
- Newfoundland 1
- Oxford 1
- Pernambuco 1
- Portsmouth 1
- Quebec 1
- Schwerin 1
- Sheerness 1
- South Australia 1
- Time 1
- Toulouse 1
- Valencia Island 1
- Vienna 1 + ∧ less
∨ more