Abstract: An apparatus and method are provided for cleaning the inside of large industrial tanks. The apparatus comprises a nozzle that is movably positioned on a stanchion that can be mounted on top of a tank, whereby said nozzle can be extended into and retracted from the tank as required.

Abstract: A workcart is provided for containing and handling parts or objects which includes a movable platform to assist the user in loading and unloading during use. A pneumatic mechanism controls the platform movement by use of a bellows and allows the platform to vertically adjust in any of a variety of selectable positions by a three-way control valve mounted on the cart. A pneumatic source such as an air compressor is connected to the pneumatic mechanism by a quick connect coupling. The cart may include wheels to allow it to be easily rolled from workstation to workstation as required.