Abstract: Method and apparatus for gripping and lifting heavy and cumbersome objects is disclosed. A slotted safety latch lever assembly permits the pivoting action of an upper tube relative to a main tube, facilitating the gripping and releasing action of arm assemblies at either end of the main tube. The length of the main tube is adjustable, permitting the main tube to shorten or lengthen as needed for gripping the object. The upper tube has a lifting device connector selectively positioned longitudinally relative to the upper tube for achieving correct balance point for lifting.

Abstract: Method and apparatus for gripping and lifting heavy and cumbersome objects is disclosed. A slotted safety latch lever assembly permits the pivoting action of an upper tube relative to a main tube, facilitating the gripping and releasing action of arm assemblies at either end of the main tube. The length of the main tube is adjustable, permitting the main tube to shorten or lengthen as needed for gripping the object. The upper tube has a lifting device connector selectively positioned longitudinally relative to the upper tube for achieving correct balance point for lifting.

Abstract: A mobile rock collecting and crushing apparatus is disclosed which is specially adapted to be drawn behind and powered by a farm or garden tractor, for collecting rocks from fields, crushing them and expelling the crushed rock back to the field. The conventional power take-off shaft at the rear of the tractor turns a common drive shaft for reciprocating crushing blocks and for a rock collector and elevator. Provision is made for adjusting the fineness of the crushed rock expelled from the machine.