Clockwork motor and shutter assembly from Dobson Spectrophotometer

maker:: R and J Beck

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Clockwork motor and shutter assembly from Dobson Spectrophotometer, no.7, c.1930's. Made by R & J Beck Ltd and used by the Meteorological Office, with six metal recording discs, candles and candle holder

Details

Category:: Meteorology

Object Number:: 1992-693

Materials:: metal (unknown) and plastic (unidentified)

type:: instrument component and spectrophotometer

credit:: Meteorological Office, Bracknell

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Parts

Metal recording discs from a clockwork motor and shutter assembly from Dobson Spectrophotometer

Three metal recording discs from a clockwork motor and shutter assembly from Dobson Spectrophotometer, no.7, c.1930's. Made by R & J Beck Ltd and used by the Meteorological Office.

Measurements:: overall: 1 mm 160 mm,

Materials:: metal (unknown)

Object Number:: 1992-693 Pt1

type:: instrument component and spectrophotometer

Image ©: The Board of Trustees of the Science Museum

Clockwork motor and shutter assembly from Dobson Spectrophotometer

Clockwork motor and shutter assembly from Dobson Spectrophotometer, no.7, c.1930's. Made by R & J Beck Ltd and used by the Meteorological Office.

Measurements:: overall: 210 mm x 253 mm x 382 mm,

Materials:: metal (unknown) and plastic (unidentified)

Object Number:: 1992-693/2

type:: instrument component and spectrophotometer

Metal candle holder from a clockwork motor and shutter assembly from Dobson Spectrophotometer

Metal candle holder from a clockwork motor and shutter assembly from Dobson Spectrophotometer, no.7, c.1930's. Made by R & J Beck Ltd and used by the Meteorological Office.

Measurements:: overall: 232 mm 129 mm,

Materials:: metal (unknown)

Object Number:: 1992-693/3

type:: instrument component and spectrophotometer

Metal recording discs from a clockwork motor and shutter assembly from Dobson Spectrophotometer

Six metal recording discs from a clockwork motor and shutter assembly from Dobson Spectrophotometer, no.7, c.1930's. Made by R & J Beck Ltd and used by the Meteorological Office.