Tuesday, 23 October 2012
Sack hoist and kiln work
Our attempts to reurrect some kind of sack hoist continue. It looks as though we need to spool the rope round the shaft rather than the pulley of the layshaft to get a controllable speed. The pulley is 0.7m diameter, so would lift about 2m per revolution. As it is geared up 80/11 from the pit wheel, by my calculations at 10 wheel revs per minute it would lift at about 8 feet per second. Anyway, we have started moving the sheaves to where they will need to be and planning where the rope will run.