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Bimetallic Thermograph, 1901-1920

Bimetallic Thermograph, 1901-1920

1901-1920
Thermograph used on 1901 Antarctic Expedition

Thermograph used on 1901 Antarctic Expedition

1900-1901
Whitehouse experimental thermograph, c. 1872.

Whitehouse experimental thermograph, c. 1872.

1872
Aircraft thermograph, c. 1920, "Simplex" type.

Aircraft thermograph, c. 1920, "Simplex" type.

1920
Recording Vapour-pressure Thermometer, 1950-52

Recording Vapour-pressure Thermometer, 1950-52

1950-1952
Thermograph, bimetallic, incomplete (lacks clock and drum)

Thermograph, bimetallic, incomplete (lacks clock and drum)

1910
Kew wet bulb thermograph scale

Kew wet bulb thermograph scale

Izuzu quartz precision thermograph

Izuzu quartz precision thermograph

Paper Temperature Recorder, Galvanometer Type, 1901-22

Paper Temperature Recorder, Galvanometer Type, 1901-22

1901-1922
Thermograph by Wilson, Warden of London, c.1950

Thermograph by Wilson, Warden of London, c.1950

1950
Thermograph by F. Darton & Co., London, England, 1

Thermograph by F. Darton & Co., London, England, 1

1900-1910
Clearspan P100L single pen temperature recorder with spare chart and accessories, 1970-78. Calibrated to use copper constantin thermocouple.

Single-Pen Electrical Temperature Recorder, 1970-78

1970-1978
Photothermograph commissioned by the Meteorological Committee of the Royal Society, some design specifications attributed to Francis Ronalds, made in England, UK, 1867. Installed and operated at Radcliffe Observatory, Oxford.

Photothermograph used at Radcliffe Observatory, Oxford

1867
Original Callendar electrical temperature recorder (including integrator) in wooden case, 1897.

Callendar Temperature Recorder, 1897

1897
Single thread electrical temperature recorder in glazed case, by The Cambridge Scientific Instrument Company Ltd., Cambridge, England, 1910-14. Range say 0-1000°C, with 100 charts

Single Thread Temperature Recorder, 1910-14

1910-1914
Thermograph scale, for Kew, dry bulb, MO 533

Thermograph scale, for Kew, dry bulb, MO 533

Thermograph scale, for Kew, [wet] bulb, MO 533

Thermograph scale, for Kew, [wet] bulb, MO 533