Abstract: A portable hydraulic service lift for elevating equipment such as industrial vehicles. The lift includes a base assembly including a platform which supports the elevated lift and allows the lift to be readily moved to a different location. A pair of rigid support legs extend upwardly from one end of the base platform and are spaced transversely to receive a portion of the equipment to be elevated therebetween. A pair of elongate lifting arms are joined in a cantilevered fashion to the support legs along the sides of the base platform. Rollers join the lifting arms to the adjacent support leg so that the arms can be raised and lowered in a cantilevered fashion while rolling along the support legs. Lifting bars extending transversely across the lifting arms are adapted to engage with the underside of the vehicle to be lifted. Power lifting mechanism are provided to raise and lower the arms and the vehicle supported on the lifting bars.

Abstract: An air cooled vacuum producing condenser is disclosed for condensing vapors containing non-condensible gases, i.e. air. The condenser includes a condenser chamber with a bundle of condenser tubes across the chamber. Inlet and outlet headers are disposed at opposite ends of the chamber. Water is directed downwardly onto the bundle of condenser tubes, and air is discharged from the interior of the chamber to create a downward flow of air through the chamber across the bundle of condenser tubes.

Abstract: A method and apparatus for dispensing a liquid efficiently and completely, and in a manner which prevents direct contact with potentially deleterious propellents. The liquid to be dispensed is placed within a collapsible bag having flexible walls and the bag is supported within a container having relatively rigid walls. A source of vacuum pressure is connected to the bag through a flexible conduit and through a weighted connector. The connector defines a port in communication with the conduit and in engagement with and floating in the liquid within the bag. The connector and conduit thereby keep the liquid in constant communication with the vacuum source. Vacuum withdraws the liquid from the bag through the conduit and the port while the connector is maintained in fluid communication with the liquid as the bag collapses as a result of the action of the vacuum force and the weighted connector.