Poly-V pulley
FIG. 1 is a perspective view, from the side and bottom, of a poly-V pulley according to my new design; 
     FIG. 2 is a bottom plan view thereof; 
     FIG. 3 is a side elevation thereof, being the same from all directions; 
     FIG. 4 is a top plan view thereof; and, 
     FIG. 5 is a section view taken along the line 5--5 in FIG. 2.