Drawer 4 PC 2: RGO 101
Container
Contains 2 Results:
Sub-Series
Meridian Group of Telescopes at Herstmonceux: site and building plans and instrument layouts, 1933, 1948 and 1950-1956
Sub-Series
Reference Code: GBR/0180/RGO 101/3/3
Scope and Contents
A set of 29 architectural drawings for the Meridian Group of Telescopes at RGO Herstmonceux [renamed 'the Spencer Jones Group of Meridian Instruments' in 1961], mainly relating to the planned instalment of the Melbourne Transit Circle at Herstmonceux, with a single drawing of the Cooke Reversible Transit Circle. The Melbourne TC was intended to be used primarily for differential observations. It was proposed to house it in a new purpose built pavilion, alongside the Cooke RTC. For various...
Dates:
1933, 1948 and 1950-1956
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
Photographic Zenith Tube Drawings, 1947 - 1959
Sub-Series
Reference Code: GBR/0180/RGO 101/3/4
Scope and Contents
The Photographic Zenith Tube (PZT) was designed and constructed to improve the accuracy of time-determination. It was also used at the Observatory for variation of latitude measurements. Operations with the PZT began in 1955 and ceased on 30 June 1984. The series includes three sets of drawings: blueprints of the U.S. Naval Observatory, Washington's Photographic Zenith Tube; a large set of design drawings for the RGO PZT by Sir Howard Grubb-Parsons and Co. Optical Works; and a set of...
Dates:
1947 - 1959
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).