Box 19: RGO 101/1/TB/Y-Z, TC/Y-Z, TD/Z
Container
Contains 3 Results:
Sub-Series
TD: Modified Astrolabe Prism Mount, 1973 - 1974
Sub-Series
Reference Code: GBR/0180/RGO 101/1/TD
Scope and Contents
A set of 21 drawings of the Modified Astrolabe Prism Mount, originally rolled together and labelled 'TD Astrolabe, 1st system Nos. not m/f'. Includes drawings of sizes W, X and Z, W being the largest.
Dates:
1973 - 1974
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
TB: RTC [Cook Reversible Transit Circle] drawings, 1957 and 1977-1980
Sub-Series
Reference Code: GBR/0180/RGO 101/1/TB
Scope and Contents
A set of 107 drawings of the Cook Reversible Transit Circle, originally rolled together and labelled 'TB RTC, 1st system Nos. not m/f'. Includes W, X, Y and Z sized drawings of two distinct date ranges, 1957 and 1977-1980.
The Cook Reversible Transit Circle was mounted in the Christie Enclosure at the Royal Observatory Greenwich from 1936-1953. It was then moved to RGO Herstmonceux where it was used until 1982.
Dates:
1957 and 1977-1980
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
TC: MTC [Mirror Transit Circle] Drawings, 1951 - 1962
Sub-Series
Reference Code: GBR/0180/RGO 101/1/TC
Scope and Contents
A set of 37 drawings of the Mirror Transit Circle labelled 'TC MTC, 1st system Nos. not m/f'. Includes drawings of sizes V, W, X, Y and Z, V being the largest. The Mirror Transit Circle was a proposed RGO instrument which was never built. The idea for the instrument developed in the late 1940s and 1950s and was promoted by Chief Assistant, Robert Atkinson. It was intended for the measurement of both declination and right ascension. By 1963 a design had been worked out in detail...
Dates:
1951 - 1962
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).