Graham's deadbeat escapement model. Brass model of an escapement consisting of a 60 second clock face behind which is a toothed wheel which is struck alternately by the ends of a curved brass arm connected to a spindle. The spindle would have a pendulum attached to it.

ABDNP:200022a

Brass and wooden model of escapement with 60 second face. Pendulum ( ABDNP200022b ) fits on rear. Holes on right of base probably for small pulley wheel, now missing. Dial marked in seconds and labelled every 10 seconds. Escapement wheel 152 mm external diameter. Replacement dial hand fitted in 1982. It's special feature is that the escapement wheel doesn't rebound at each tick but stops dead.

1781-1789

Brass, wood
height 267 mm; dial diameter 150 mm; base depth 183 mm; width 230 mm

John King

Physical Object

a3d24092-f36f-4d84-b353-d4871b217cde