George III's clockwork bell

Made:
1761
maker:
George Adams

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Small air pump by Watkins and Hill, horizontal piston, with four legged brass stand mounted on a mahogany base
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Small air pump by Watkins and Hill, horizontal piston, with four legged brass stand mounted on a mahogany base
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Brass clockwork bell, with 2 hammers by George Adams, London, England, 1761. This clockwork bell was made by George
King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Brass clockwork bell, with 2 hammers by George Adams, London, England, 1761. This clockwork bell was made by George
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Brass clockwork bell, with 2 hammers by George Adams, London, England, 1761. This clockwork bell was made by George
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Group shot of 1927-1368 Bell jar with brass collar and 1927-1293, Brass clockwork bell, with 2 hammers by George Adams,
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Brass clockwork bell, with 2 hammers by George Adams, London, England, 1761. This clockwork bell was made by George
Science Museum Group
© The Board of Trustees of the Science Museum, London

Brass clockwork bell, with 2 hammers by George Adams, London, England, 1761. This clockwork bell was made by George
Science Museum Group
© The Board of Trustees of the Science Museum, London

Brass clockwork bell with 2 hammers made by George Adams, Fleet Street, London, 1761.

This clockwork bell was made for King George III in 1761 by George Adams, very soon after he ascended the throne in 1760. It was part of Adams' pneumatics lectures and was intended to be used with the air pump.It allowed the demonstrator to explain how the presence of a vacuum affected the attendees' perception of sound. When the bell was placed in the glass chamber of the air pump and set ringing, the noise made by the bell could be heard. If the air was removed from the glass chamber, the noise made by the bell became fainter. In a container where the air was compressed, the bell remained audible but the strokes of the hammer were slowed down.

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Details

Category:
King George III
Object Number:
1927-1293
Materials:
brass (copper, zinc alloy), incomplete, lead (metal), paper (fibre product), steel (metal)
type:
demonstration equipment
taxonomy:
  • furnishing and equipment
  • tools & equipment
credit:
King's College, London

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