The principle whereby energy may be obtained from water by an UNDERSHOT waterwheel HORIZONTAL wheel or PELTON WHEEL turbine, whereby rapidly flowing water is directed towards more slowly-moving FLOATS or BUCKETS, to convert some of the energy of motion (kinetic energy) into mechanical power.
Produces thick sheets of board by winding the paper as it comes from either a FOURDRINIER or a CYLINDER MACHINE onto a roller in layers. When sufficiently thick, the web is cut along the length of the roller and pulled off.
4,5,6 or 8-armed cast-iron cross fitted to the outer end of a windshaft to which the SAIL BACKS are strapped and bolted. Used as an alternative to the POLL END. Mostly found in Lincolnshire and more northern counties. (often replacing a wooden poll end which had broken off at the mortices for wooden sail backs)