Abstract: An apparatus for loading and unloading containers of various lengths onto and off of a roll-off vehicle has a floating lockdown mechanism which moves relative to a front end of the top frame. The floating lockdown mechanism is movable away from the front end of the top frame to meet and releasably confine a front roller on a shorter container, such that the lockdown mechanism can be utilized without pulling the container all the way to the front end of the top frame.

Abstract: A hoisting frame apparatus for loading and unloading containers onto and off of a roll-off vehicle includes adjustable head and tail portions that are cooperatively actuated by a single actuation stroke to move relative to a main portion of the hoisting frame apparatus. The hoisting frame apparatus includes a linkage connecting the tail portion to the head portion such that displacement of the head portion by a hoist actuator relative to the main portion causes displacement of the tail portion relative to the main portion. The total longitudinal displacement of the tail portion may be shorter than the total longitudinal displacement of the head portion, and the linkage may be configured to release the connection between the head and tail portions when the tail portion reaches a travel limit to allow independent further longitudinal displacement of the head portion.

Abstract: An apparatus for a hook lift jib which is easily movable between an extended position and a retracted position to make the applications for use of this apparatus more universal since it is capable of being used for lifting and handling of refuse containers of various sizes. The jib member can be retained in the extended position by the placement of two locking pins extending therethrough or it can be capable of floating or automated self movement between the extended and retracted position responsive to removal of one of the pin members. The hook lift jib apparatus is designed to be particularly useful handling containers of different sizes particularly useful with containers wherein the container grip bar is between 54 inches and 61 inches from the adjacent ground surface.