The working governor is a Watts type driven
from the crankshaft pulley via a large band
to a ½" pulley on the governor gearbox.
On this shaft a 25Tcontrate gear meshes
with an 11T pinion on the governor shaft.
All the linkages and arms are purpose made
and the balls are ex-Cromptons Diggers Prize
amusement machine parts. The crank shaft
is chain driven by a Faulhaber 12Volt motor
mounted on the inside of the main bearing.
The drive sprocket is a 14T Meccano sprocket
which drives an 18T with a heavy duty boss
on the crankshaft.