Abstract: A mobile vacuum loading machine has a swivel assembly permitting the boom to be rotated 360.degree. through the use of internal hydraulic and pneumatic passages in the swivel assembly. The hose reel is mounted on the rear of the machine and capable of being swung out outwardly a full 180.degree. and fixedly held at any position through the use of a linkage assembly attached to a hydraulic cylinder.

Abstract: A cyclonic device for separating entrained matter from a fluid stream under pressure includes a vortex chamber having a longitudinally upright cylindrical part and a subjacent frusto-conical part. Inlet and outlet means are provided for causing the fluid stream to flow first in a downward spiral and then along an ascending vortex. The entrained matter is separated from the fluid stream by centrifugal and inertial forces acting thereon from the swirling fluid flow. A cylindrical filter screen is provided concentrically disposed within the chamber and defines an area through the ascending vortex flows. The filter screen further separates relatively less dense matter from the fluid stream prior to the fluid flowing along the ascending vortex. A freely buoyant spherical ball is provided which acts as a check valve to close the chamber outlet means when a predetermined level of separated matter accumulates in the chamber.

Abstract: Apparatus is disclosed for cleaning a sewer or other chamber. The apparatus includes a wheeled vehicle having a frame. A water reservoir tank is mounted near the front of the vehicle frame and is adapted to hold a supply of water. A hose unit is mounted at the rear of the vehicle frame. The hose unit has a hose connected to the water reservoir tank and adapted to be inserted into the chamber to discharge water into the chamber. A debris holding tank is mounted on the vehicle frame between the water reservoir tank and the hose unit. The debris holding tank is adapted to receive and hold debris. A boom is mounted on top of the debris holding tank and adapted to extend rearwardly over the hose unit. The boom has a conduit connected to the debris holding tank and adapted to be lowered into the chamber to be cleaned to transport material from the chamber into the debris holding tank.

Abstract: A sewer cleaning unit is disclosed which comprises a single tank assembly mounted on a wheeled vehicle. The single tank assembly has a substantially horizontal fixed divider forming a first tank portion adapted to carry and discharge a supply of water, and a second tank portion adapted to receive and hold debris, thus obviating the disadvantages of tank designs of the prior art. The unit may also be provided with hand-operated control means near the intake end of the conduit connected to the second tank portion and a control means connected to the reel for the hose from which water is discharged from the first tank portion, the reel control means and the hand-operated control means capable of being operated simultaneously by a single operator.