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Four butt-joint plates, used with 'Sketcher boardto update Maps, unsigned, British, 1950-1959

Butt-joint plates for plane table, British, 1950-1959

1950-1959

Part of Whipple rate of rainfall chronograph, ex Kew Observatory.

Part of Whipple rate of rainfall chronograph

Computer from Ferranti Freescan digitiser to computerise OS maps, by Ferranti Ltd., British, 1969

Computer from Ferranti Freescan digitiser to computerise OS maps

1969

Plastic case containing spare bulb and pens for printer for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Spare bulb and pens for printer for microdensitometer

1978

Computer with leads for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Computer with leads for microdensitometer

1978

Electrical box with LEDs for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Electrical box with LEDs for microdensitometer

1978

Computer keyboard for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Computer keyboard for microdensitometer

1978

4-way plug connector (continental) for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

4-way plug connector for microdensitometer

1978

Foot control pedal for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Foot control pedal for microdensitometer

1978

Unused roll of printer graph paper in sealed plastic bag for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Unused roll of printer graph paper for microdensitometer

1978

Table-top desk with end rollers for examining trace paper from microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Table-top desk from microdensitometer

1978

Part of Grid stereometer, 1948 prototype

Part of Grid stereometer

1948

Detached repeating mechanism for hours and quarters, by Court of Henley, with old fusee watch attached including a metal box and outer watch case

Detached repeating mechanism for hours and quarters

patented 1796

Mass spectrometer, Metropolitan Vickers type MS 2, 1949

Vacuum pump for a mass spectrometer, 1949.

1949

Movement of 19th century minute-repeater watch by A.E. Skinner, Orchard St., London, W., No.16675, with gold balance

Movement of 19th century minute-repeater watch by A.E. Skinner

Components for oxygen isotope apparatus (pirani gauge and heads, mass spectrometer, chart recorder).

Components for oxygen isotope apparatus

Chronometer escapement by John Arnold, no. 371, London, England, 1780-1790.

Chronometer Mechanism by Arnold, England, 1780-1790

1780-1790

Two bronze screws, removed from the circular grid attached to the base of refracting telescope of 5.9-inch aperture by Dollond.

Bronze screws from Refracting telescope of 5.9-inch aperture

1829

Dicks petrographic microscope. The accessories comprise:- an additional objective (1/4in.) , sub-stage condenser with veis diaphragm camera lucida, quarter undulation plate micrometer, quartz wedge

Dicks petrographic microscope

2 Bench micrometer-heads from a bench type measuring machine,made 1924, by the N.P.L.

2 Bench micrometer-heads from a bench type measuring machine

1924

Geneva lever, 1801-1850

Geneva lever

1801-1850

Camera lucida, in case

Camera lucida

Model of chronometer escapement, for use with a projecting latern, made by Dent, 1950-1883. Represents the detent chronometer escapement, invented by Thomas Earnshaw 1777-1787. This escapement was typically used in marine chronometers.

Model representing Earnshaw's detent chronometer escapement, 1950-1883

1950-1883

Refractometer bath, asbestos and steel, c. 1900

Refractometer bath, asbestos and steel, c. 1900

circa 1900

Box of refractometer shields

Box of refractometer shields

Immersion heater for use with metal block calorimeter

Immersion heater

1967-1983

Eyepiece double-image spherical crystal micrometer using a made by George Dollond in 1830 for the Smyth telescope (1929-949 Pt1 ). Captain W.H.Smyth used this Crystal micrometer to measure double stars for his famous book, 'A Cycle of Celestial Object' first published in 1844. The novel design of the instrument caused ambiguity in his readings which after his death resulted in accusation of inaccuracy and plagiarism. Charges that were shown subsequently to be unfounded (see 'An Astronomical Scrapbook' by Joseph Ashbrook, Cambridge 1984).

Eyepiece double-image spherical crystal micrometer

1830

Miniature camera obscura, wood and glass, made 1850-1924 (Wellcome No. missing)

Miniature camera obscura

1850-1924

Radiation shield for CHASE (Coronal Helium Abundance Spacelab Experiment) for 1985 Spacelab 2 experiments, model. Developed by Rutherford Appleton Laboratory, Didcot, UK, 1984

Radiation shield for CHASE

1984

Flight cover for CHASE (Coronal Helium Abundance Spacelab Experiment) for 1985 Spacelab 2 experiments, model. Developed by Rutherford Appleton Laboratory, Didcot, UK, 1984

Flight cover for CHASE

1984

Trolley for CHASE (Coronal Helium Abundance Spacelab Experiment) for 1985 Spacelab 2 experiments, model. Developed by Rutherford Appleton Laboratory, Didcot, UK, 1984

Trolley for CHASE

1984

Optica UV/IR spectrophotometer and electronic console and accessories Part 1 : control unit

Optica UV/IR spectrophotometer and electronic console and accessories Part 1 : control unit

Optica UV/IR spectrophotometer and electronic console and accessories Part 2 : Spectrophotometer

Optica UV/IR spectrophotometer and electronic console and accessories Part 2 : Spectrophotometer

Box for Shaw horizontal pendulum seismograph, 1930-1935.

Box for Shaw type seismograph, British, 1930-1935

1930-1935

Brass roller for Shaw horizontal pendulum seismograph, 1930-1935

Clockwork mechanism for Shaw type seismograph, British, 1930-1935

1930-1935

Pivot piece bracket and small double bracket for Shaw horizontal pendulum seismograph, 1930-1935

Clockwork mechanism for Shaw type seismograph, British, 1930-1935

1930-1935

Mahogany shelf for Shaw horizontal pendulum seismograph, 1930-1935

Clockwork mechanism for Shaw type seismograph, British, 1930-1935

1930-1935

Recording drum for Shaw horizontal pendulum seismograph, 1930-1935

Part of Shaw type seismograph, British, 1930-1935

1930-1935

Ten weights and hanger for Shaw horizontal pendulum seismograph, 1930-1935

Clockwork mechanism for Shaw type seismograph, British, 1930-1935

1930-1935

'Sketcher' plane table board, to carry butt-joint plates for updating the survey in the field, unsigned, British, 1950-1959

'Sketcher' plane table board, British, 1950-1959

1950-1959

McLeod type photographic sunshine recorder, unsigned, with 6 record sheets, Britain, 1884

McLeod type photographic sunshine recorder and 6 record sheets, 1884

1884

Digitising table (white board) for Ferranti Freescan digitiser, used to computerise OS maps, by Ferranti Ltd., British, 1969

Digitising table (white board) for Ferranti Freescan digitiser

1969

RCA CR91 radio transmitter used with tuning Mk II radiosondes

RCA CR91 radio transmitter

1960-1970

Power leads for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Power leads for microdensitometer

1978

Electronic switch box for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Electronic switch box for microdensitometer

1978

Printer loaded with roll of graph paper with experimental trace and plastic dust cover for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Printer and paper for microdensitometer

1978

Electronics/switch box for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Electronics/switch box for microdensitometer

1978

Five hermetically sealed electrical components for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Five hermetically sealed electrical components for microdensitometer

1978

Computer monitor for microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Computer monitor for microdensitometer

1978

Technical diagram of densitometer arrangement of microdensitometer used to measure the X-ray density of tree rings in research into past climates, 1978

Technical diagram of densitometer arrangement

1978

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