Chaff cutter drum blade mounting - has upper surface of the blade grooved to receive sharp arris of holding cramp

摘要

To fix cutter blades to the drum of a chaff cutter the upper surface of the blade (6) is grooved longitudinally at the back, and at an angle to the axis (8) of the blade, with parallel grooves (9). The clamp (4) is deformed to provide a sharp axis (15) to engage in one or other of the grooves and along which it can slide as necessary.The clamp is tightened by a bolt (5) through a slot (16). ADVANTAGE - A simpler and more secure clamping of the blade.