Abstract: A device for use with a pier installation apparatus of the type employed in lifting and supporting a foundation is provided. A mounting beam assembly for mounting hydraulic power cylinders in a straddling position around a pier to be driven into the ground by the installation apparatus. The beam assembly is a planar member having a central opening for receiving the pier therethrough. It is comprised of opposing plate members beneath which the hydraulic cylinders are mounted. The plate members each have an opening which allows passage of the piston rod through the hydraulic cylinder. Alternatively, the beam assembly may be comprised of a unitary plate member having a lateral opening at a side edge. The mounting beam assembly allows for lateral placement around a pier in the installation apparatus, and may be completely disassembled for quick and efficient installation and removal.

Abstract: An improvement for use with a pier installation apparatus of the type employed in lifting and supporting a foundation is provided. The invention comprises a mounting beam assembly for mounting hydraulic power cylinders in a straddling position around a pier to be driven into the ground by the installation apparatus. The beam assembly is a planar member having a central opening for receiving the pier therethrough. It is comprised of opposing plate members upon which the hydraulic cylinders are mounted. The plate members each have an opening which allows passage through of the piston rod of the hydraulic cylinder. The mounting beam assembly allows for lateral placement around a pier in the installation apparatus, and may be completely disassembled for quick and efficient installation and removal.

Abstract: An improvement for a bracket assembly of the type used in lifting and supporting a foundation upon a pier is provided. An adjustable brace member is provided in the bracket assembly to decrease the available front to back space within the bracket to prevent movement of the retained pier within the bracket so as to reduce bending moment on the pier. The brace member comprises a slot disposed within a top of the bracket, which receives one or more locking tabs to retain the pier. Threaded bolts which enable the bracket to engage and be supported on the pier are received in elongated holes on the bracket to allow positioning of the lifting and support hardware directly over the pier. The modified bracket assembly allows for the replacement of any size or configuration of pier.