Windshaft

The Windshaft is a part in a windmill that carries the sails and also the brake wheel (Smock and Tower mills, and in some Post mills) or the head wheel and tail wheel in a Post Mill. Windshafts can be wholly made of wood, or wood with a cast iron poll end (upon where the sails are mounted) or entirely of cast iron.[1]

A windshaft lying near a mill

Hook Windmill, North Main Street at Pantigo Road, East Hampton, Suffolk County, NY HAER NY,52-HAMTE,2- (sheet 6 of 6)

Windshaft connected to other parts. 1=sails; 2=windshaft; 3=brake wheel, 4=crown wheel with cogs; 5=vertical or main shaft.

brake wheel

crown wheel with cogs and windshaft

References

Historic American Engineering Record (HAER) No. NY-105, "Hook Windmill, North Main Street at Pantigo Road, East Hampton, Suffolk County, NY", 35 photos, 1 color transparency, 6 measured drawings, 14 data pages, 4 photo caption pages

CLARK, H. O; WAILES, REX (1949-01-01). "Notes on the Berton Sail and the Caviers or Hollow Post Mills of Anjou". Transactions of the Newcomen Society. 27 (1): 211–216. doi:10.1179/tns.1949.020. ISSN 0372-0187.

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[1] CLARK, H. O; WAILES, REX (1949-01-01). "Notes on the Berton Sail and the Caviers or Hollow Post Mills of Anjou". Transactions of the Newcomen Society. 27 (1): 211–216. doi:10.1179/tns.1949.020. ISSN 0372-0187.