Quarter-repeating verge bracket clock No.764 by Geo. Graham

Made:
1701-1751 in London
maker:
George Graham
Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock) Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock) Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock) Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock) Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock) Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock) Quarter-repeating verge bracket clock No.764 by Geo. Graham (bracket clock; spring-driven balance wheel clock)

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

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License this image for commercial use at Science and Society Picture Library

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License this image for commercial use at Science and Society Picture Library

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Quarter-repeating verge bracket clock No.764 by Geo. Graham, London, in ebonised case. With mock pendulum, date aperture, strike-silent and pendulum rise-and-fall indicators on dial. With wooden supporting bracket, 1 winding key and 1 door key. (Fret above dial and several small pieces of veneer missing. One side glass panel renewed)

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Quarter-repeating verge bracket clock No.764 by Geo. Graham

Quarter-repeating verge bracket clock No.764 by Geo. Graham

Quarter-repeating verge bracket clock No.764 by Geo. Graham, London, in ebonised case. With mock pendulum, date aperture, strike-silent and pendulum rise-and-fall indicators on dial.


Bracket clocks are spring driven, rather than weight driven, making them more portable. They are referred to as bracket clocks due to the wall-mounts or brackets they were intially placed on. This clock contains a verge escapement. Escapements are mechanisms that prevent the stored energy held in the wound spring, or hoisted weights, from escaping too quickly. Instead, the escapement allows the stored energy to be released gradually, thereby regulating the movement and helping to maintain accurate timekeeping.

This clock was created by George Graham, a renowned maker of clocks, watches and scientific instruments.

Measurements:
overall: 395 mm x 220 mm x 150 mm, 6.3 kg
Materials:
wood (unidentified) , glass , silver (alloy) , brass (copper, zinc alloy) , cotton (fibre) and steel (metal)
Object Number:
1962-263 Pt1
type:
clock