11. The Great Spur Wheel is of iron, with wooden teeth, and drove two pairs of underdrift millstones. 12. The " great spur wheel " has been converted from compass arm construction to clasp arm construction. 13. The mill was again renovated, and a new Great Spur Wheel fitted by Messrs Lister Bros, of Woolwich. 14. The Upright Shaft was wood, as was the clasp arm Great Spur Wheel , which drove three pairs of millstones. 15. That drove the wallower on the upright shaft, then a diameter cast iron great spur wheel drove four pairs of millstones. 16. At the foot of the Upright Shaft, a wooden clasp arm Great Spur Wheel of diameter with 70 cogs was carried. 17. The Upright Shaft is wooden, as is the clasp arm Great Spur Wheel , which drove three pairs of millstones overdrift. 18. The " upright shaft " and " great spur wheel " for the engine drive remain in situ. 19. The cast iron upright shaft carries a cast iron wallower with 38 teeth and a cast iron Great Spur Wheel with 104 cogs. 20. The great spur wheel is made of iron, as is the upright shaft . The stone nuts have wooden cogs, as usual.
