George III's double-barrelled air pump

Made:
1761
maker:
George Adams

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Double-barrelled air pump, 1761. This air pump by George Adams, instrument maker to the king, is the centrepiece of the
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Double-barrelled air pump, 1761. This air pump by George Adams, instrument maker to the king, is the centrepiece of the
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Double-barrelled air pump, 1761. This air pump by George Adams, instrument maker to the king, is the centrepiece of the
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Double-barrelled air pump, 1761. This air pump by George Adams, instrument maker to the king, is the centrepiece of the
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

1927-2058: Mahogany cross-piece for an air pump.1927-1326/1: Brass cylindrical condenser with glass ends, made by
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Double barrelled air pump and reservoir, made by George Adams, Fleet Street, London, 1761.

This air pump was made by George Adams for King George III in 1761. It is the centrepiece of the pneumatics apparatus commissioned by the king along with the mechanics apparatus. The arrangement of valves is copied from a pump made about 10 years earlier by John Smeaton, who later became famous as a civil engineer. The air pump can be used to remove air from a glass vessel to show the effects of a vacuum. Alternatively, it can be used to pump air into a container, such as the brass condenser shown, to show the effects of pressure higher than normal.

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Details

Category:
King George III
Object Number:
1927-1624/1
Materials:
brass, glass, mahogany, metal (unknown), rosewood, steel (metal)
type:
double-barrelled air pumps
credit:
King's College, London

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