Abstract: Apparatus for use in conjunction with material handling equipment having a pivotable working member, and comprising cooperatively lever acting extension members attached to opposite sides of the pivotable working member of the material handling equipment is disclosed. One extension member is flexible, and the other is rigid. The rigid extension member is attached to the equipment working member through a hinge mechanism. The hinging of the rigid extension member, in combination with the flexibility of the other extension member, protects the material handling equipment from damage by large mechanical impulses to which the extension apparatus may be subjected in use. An extension apparatus working member is attached to the rigid extension member. In one embodiment, the extension apparatus working member includes a wrecking member, such as a wrecking ball. In other embodiments, the extension apparatus working member may be a hook, tongs, a magnet, a splitting wedge, or the like.

Abstract: Apparatus for use in conjunction with material handling equipment to provide for protection of overhead cables from damage by such material handling equipment being operated thereunder is disclosed. Material handling equipment having pivotably connected arms and hydraulic means for causing relative motion between such arms about their pivot point is provided with a substantially continuous bumper comprising at least two guard members. One end of a first guard member is attached to one arm and one end of a second guard member is attached to the arm pivotably connected to the first arm. A sheath slidably receiving the second end of one guard member is provided to provide for bumper length adjustment as the arms pivot. The second end of the other guard member is so disposed to complete a substantially continuous bumper. Various modes of attachment are employed in several embodiments of this invention.