Abstract: A lifting device that simultaneously lifts a plurality of retaining wall blocks initially oriented in a triangular configuration on a pallet and allows them to be easily realigned in a linear configuration on a retaining wall. The lifting device comprises two pivoting lateral extending side arms with clamping units attached to their distal ends. Attached to the main planar frame is a central clamping unit. Each clamping unit includes an insert member that inserts into a large, vertically aligned hole formed in the block. When the clamping units are inserted into the hole and activated, three triangularly aligned sets of blocks on a pallet may be lifted. The side arms are designed to pivot rearward so that the front surfaces of the blocks are longitudinally aligned and the blocks are positioned in a side-by-side manner. Once properly realigned, the lifting device is lowered so that the three blocks are simultaneously placed over the top row of the retaining wall.

Abstract: A device used to simultaneously lift three concrete blocks from a pallet using a backhoe or crane and reposition them for exact placement on a wall. The device comprises a lifting bar that is suspended in a horizontally aligned position from a cable or chain connected to the shovel or hook on a backhoe or crane, respectively. Extended downward from the lifting bar are three block lifting assemblies. Each block lifting assembly includes two connecting rods that fit into vertically aligned holes formed on the concrete blocks. Each connecting rod is pivotally connected at its upper end to a short segment of chain or cable which pivotally connects to a rigid transfer plate. Each assembly also includes two long segments that pivotally connect to the upper edge of the transfer plate. The upper ends of the two long segments are spaced apart and pivotally connected to the lifting bar so that the long segments converge and are aligned diagonally when the connecting rods are placed inside the holes.

Abstract: A lifting device that simultaneously lifts a plurality of retaining wall blocks initially oriented in a triangular configuration on a pallet and allows them to be easily re-aligned in a linear configuration on a retaining wall. The lifting device comprises two pivoting lateral extending side arms with clamping units attached to their distal ends. Attached to the main planar frame is a central clamping unit. Each clamping unit includes an insert member that inserts into a large, vertically aligned hole formed in the block. When the clamping units are inserted into the hole and activated, three triangular aligned sets of blocks on a pallet may be lifted. The side arms are designed to pivot rearward so that the front surfaces of the blocks are longitudinally aligned and the blocks are positioned in a side-by-side manner. Once properly re-aligned, the lifting device is lowered so that the three blocks are simultaneously placed over the top row of the retaining wall.