beams, one pair above the other
and supporting the grain floor,
the other pair carrying the
‘Crossbeam’ which houses the
lower bearing of the vertical
shaft sits the ‘Great Spur Wheel’
of similar design, construction
and materials as the ‘Brake
Wheel’ and ‘Wallower’. The Spur
Wheel carries 132 square
wooden cogs of apple or horn-
beam.
drive to the four pairs of ‘Stones’
laid out in a semi-circle on the
stone floor and can be
individually thrown out of mesh
with the spur by the aid of
slotted bearings or Glut Boxes’.
The nuts turn square sectional
iron ‘Quants’, which carry the
‘Damsel’ and turn the’Rynd’
through the ‘Mace Head’ and
‘Stone Spindle’.
in the same plane. An auxiliary
cog which drives the sack hoist
above and the ‘Countershaft’
below, as well as another
auxiliary shaft. This auxiliary cog
wheel meshes at right angles to
the spur to give horizontal drive
to its dependants.