Walnut huller, top view, OAES. Looking down a cylinder made of 6" tubing welded to 1 1/2" shafting. Lugs were screw type horseshoe calks arranged spirally spaced 6" apart. Spiral acts as feed to keep nuts moving toward discharge end. Cylinder turned about 150 RPM. Required about 3 HP gas engine. over all diameter of cylinder and lugs 8 1/2". Item #5561