Abstract: This invention relates to a demolitions shears, including a body having a fixed jaw and a movable jaw that pivots with respect to the fixed jaw. A main shaft for pivotally mounting the moveable jaw to the body. A hydraulic cylinder for actuating the movable jaw to pivot. The movable jaw includes a first rotation stop and the main shaft including a second rotation stop. When the main shaft is installed in the moveable jaw, the first rotation stop and the second rotation stop are coupled to prevent relative rotation between the main shaft and the movable jaw, without axially fixing the main shaft to the movable jaw. A removable stop assembly is constructed and arranged to limit axial movement between the main shaft and the movable jaw.

Abstract: This invention relates to a demolitions shears, including a body having a fixed jaw and a movable jaw that pivots with respect to the fixed jaw. A main shaft for pivotally mounting the moveable jaw to the body. A hydraulic cylinder for actuating the movable jaw to pivot. The movable jaw includes a first rotation stop and the main shaft including a second rotation stop. When the main shaft is installed in the moveable jaw, the first rotation stop and the second rotation stop are coupled to prevent relative rotation between the main shaft and the movable jaw, without axially fixing the main shaft to the movable jaw. A removable stop assembly is constructed and arranged to limit axial movement between the main shaft and the movable jaw.

Abstract: A grappling system includes a frame and a plurality of grapples supported by the frame. The grappling system may be suspended from a crane-and-submerged into a body of water to grip and manipulate an underwater object such as a portion of a decommissioned oil platform.