to which is secured a conventional horizontal continuous belt conveyor 14 a horizontal shaft 16 is supported by the frame above one end of conveyor 14 and is rigidly secured to wheel 18 shaft 16 is connected to a suitable source of rotational power not shown wheel 18 has an outer periphery 20 fig1 and 6 as best shown in fig6 a pair of cam grooves 22 and 24 are formed in the outer periphery 20 of wheel 18 the cam grooves are primarily in parallel relationship between the six o 39 clock and twelve o 39 clock positions of the wheel 18 as seen in fig1 however the cam grooves 22 converge towards each other between the twelve o 39 clock and eight o 39 clock positions as viewed in fig1 whereupon they extend away from each other between the point of maximum convergence back to their relatively parallel position between the eight o 39 clock and six o 39 clock positions as viewed in fig1 the purpose of the converging portions of the cam grooves 20 and 24 will be discussed hereafter as best shown in fig6 a plurality of conveying and cutting assemblies 26 are mounted on the outer periphery 20.