Abstract: A low profile seat suspension includes a bottom frame adapted to be mounted on a vehicle, and a top frame located above the bottom frame for supporting a seat cushion and seat back thereon. A substantially fully collapsible scissors linkage is interconnected between the bottom frame and the top frame enabling the bottom frame and the top frame to move relative to each other substantially in parallel. A biasing arrangement is disposed between the top frame and the bottom frame and has a preload force urging the top frame away from the bottom frame. A first adjustment mechanism is located in the top frame and selectively enables fore and aft adjustment of the top frame relative to the bottom frame.

Abstract: Apparatus for receiving and dumping a top-unloading car. Cradle track extends from a car receiving position to a car dumping position, and is inclined downwardly from the car-receiving position. A car-receiving cradle assembly movably mounted on the cradle track includes rocker members with arcuate peripheries for contact with and support by the cradle track. Car rails support a loaded car on the cradle assembly with the combined center of gravity of the car, of its load and of the cradle assembly being located relative to the peripheries of the rocker members such that the cradle assembly, with a loaded car thereon, can roll by gravity action from a normal vertical position at the car-receiving position through an angle in the range of about 70 to about 110 degrees and, with an emptied car thereon, can roll by gravity action from the car-dumping position to return to a position within that range.