Abstract: A load handling apparatus particularly suited for incorporation into a vehicle for lifting and transporting heavy loads such as steel slabs, comprising a main frame for straddling a load, pivoting lift frames to provide the lifting capacity of the apparatus, suspended load engaging and clamping members and hydraulic cylinders to actuate the lift frames and the load engaging and clamping members. In the illustrated embodiment, a control system is provided for the cylinders which includes provision for synchronously extending and retracting the lift cylinders and for accommodating any necessary adjustment of the length of the clamping cylinders as the load engaging and clamping members, with a load engaged and suspended therebetween, move transversely relative to the main frame, changing the distance between the points of connection of the cylinder.

Abstract: A trailer for lifting, carrying and dumping large heavy ladles used in foundries in which the ladle is supported by a compound pivot tilt frame with one set of linear actuators for swinging the ladle to a dumping position and a second set of linear actuators for continuing the swinging to a ladle inverting position. The pivot axes for swinging the ladle are located so that the ladle is transported centrally of the wheeled frame of the trailer and is swung rearwardly for dumping without lowering the trailer into contact with the ground.

Abstract: A carrier having a wheeled, open-ended, frame pivotally the frame and cradle can be maneuvered around a pot and under projections on the pot. A pair of primary linear actuators on the frame are coupled through levers and links so as to cause the cradle to lift the pot for transport and thereafter dump the pot by tilting the cradle more than 140.degree. while maintaining good mechanical advantage. Secondary cylinders are positioned to bear traveling loads, eliminating the pressure in the primary cylinders and the forces through the links and pins. The levers and links are designed so as to avoid twisting and binding under heavy loads.

Abstract: A mobile carrier for large scrap steel carrying boxes including a main wheeled frame with steerable, powered wheels and a support or tilt frame suspended on the main frame for vertical movement. The tilt frame fits around and locks to the box with the box itself forming a structural member preventing spreading of the frame. Hydraulic actuators suspend the tilt frame allowing it to pick up a box, carry it with the main frame, and tilt the box to dump the scrap contents.