Abstract: A reciprocating type of bulldozer blade which blade is mounted on a telescoping member for telescoping engagement with a support arm carried on the bulldozer proper, the improvement including a flywheel disposed on a powered shaft which is rotated, the rotating powered shaft operatively connected to a bulldozer blade through a cam system to provide reciprocal movement of the blade in response to powered shaft rotation. The flywheel provides a more uniform shaft rotation and therefore a greater force on the bulldozer blade as it cycles back and forth. In addition, the relatively telescoping support parts for the blade have provided thereon a supporting instrumentality connected to a stationary portion of the telescoping assembly, and a cylinder having a spring device on the moving reciprocatory part, a shaft extending therebetween so that in combination with the flywheel, additional force is provided on the bulldozer blade by cyclically loading and unloading the spring, which works against the shaft.

Abstract: A reciprocating adjunct for conventional backhoe buckets including a shaft which is supported on bearings and carried on connecting links depending from a bucket curl mechanism which is supported by transverse links extending to a dipper stick associated with conventional backhoe buckets, the shaft including termini having cam surfaces communicating with bearings supporting bucket brackets providing with the dipper stick the sole supports for the bucket whereby rotation of the shaft and therefor the associated cam surfaces causes a reciprocating oscillating motion of the bucket.