Thomas, David, fl1819 - 1821 (chronometer maker)
Person
Found in 4 Collections and/or Records:
Item
David Thomas on perpetual motion, 1821
Item
Reference Code: GBR/0180/RGO 14/54: 192-197
Scope and Contents
From the Series:
The first part of collection is comprised of papers concerning the internal affairs of the Board of Longitude, including the granting of awards, accounts, minutes, committee papers, petitions and memorials, the loan of instruments, publications and the payment of staff. These are followed by a wide range of papers relating to the Board's work, concerning clocks, chronometers and other instruments; longitude and latitude; magnetic variation; schemes and inventions; tables; pendulum...
Dates:
1821
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).
Item
David Thomas's description of an arrangement of the magnetic needle as a compass for ascertaining the dip, 1819 - 1821
Item
Reference Code: GBR/0180/RGO 14/43: 579-581
Scope and Contents
From the File:
Correspondence regarding the effect of magnetic variation on the mariner's compass, the use of magnetic variation to establish longitude and the cause of magnetic variation.
Dates:
1819 - 1821
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).
Item
Letter and drawings sent from David Thomas to the Board of Longitude, 1821-04-03
Item
Reference Code: GBR/0180/RGO 14/40: 583-586
Scope and Contents
Letter outlining Thomas' method of remedying the effects on pendulums and springs of the different degrees of gravity and different climates. It includes three explanatory drawings.
Dates:
1821-04-03
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).
Item
Letter from David Thomas concerning a timepiece with two springs, 1819-07-22
Item
Reference Code: GBR/0180/RGO 14/24: 460-461
Scope and Contents
Sent to Dr Thomas Young.
Dates:
1819-07-22
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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