Abstract: Apparatus for forming a tubular metal member of a shape and length having an opened end and a closed end into an element which is formed of a different shape and length by forcing and thereby flowing the metal of the tubular member from one mold cavity to another. The apparatus comprises a form mold having an entrance cavity of a shape and length generally corresponding to the tubular member and in which the entire tubular member is initially located and an exit cavity of a different shape and length in which the flowing metal of the tubular metal member is forced to form the element having the shape and length of the exit cavity. The form mold has an entrance opening in a side wall thereof which is connected to the entrance cavity. The tubular metal is initially located entirely within the entrance cavity of the form mold, with the closed end thereof located adjacent the exit cavity and the opened end of the tubular metal member being located at the entrance opening to the entrance cavity.

Abstract: An underwater pool light that is flush-mounted, versatile, safe, economical, easy to maintain, temperature controlled and liquid cooled, and provides the ability to direct the light in a specified direction.

Abstract: The brake shoe rivet press is for removing in a single operation rivets which are arranged in rows to hold a fibrous liner to the base of a brake shoe to thereby permit removal and later replacement of the liner. The press has a frame and a punch holder fixedly carried by the frame. The punch holder has a plurality of movable punches also arranged in rows and corresponding in number to the number of rivets in the brake shoe. The press includes upper and lower rams movably carried by the frame on opposite sides of the punch holder. The lower ram is provided with a support surface for positioning and supporting the brake shoe and also includes a plurality of openings arranged in rows for receiving the spent rivets. The upper ram has an operating surface, which, when the upper ram is actuated, engages the punches so as to urge them against the rivets to remove them from the brake shoe in a single operation. A hydraulic circuit is provided for controlling the movements of the upper and lower rams.

Abstract: A low profile carriage is mounted on widely spread wheels to roll along the underwater surfaces of a swimming pool. The carriage is propelled by a high velocity stream of water projecting from a rearwardly directed thrust nozzle. There is a venturi restriction just forward of the thrust nozzle, creating a low pressure zone that induces flow of water through the bottom of the carriage, drawing in leaves and other debris. The water so drawn in passes through a screen, trapping the debris in a removable pod or bin depending from the carriage. The top of the carriage is relatively flat and the depending debris pod is curved downward to form an inverted air foil, whereby the pressure differential between the top and bottom of the carriage biases the carriage against the swimming pool surface traversed thereby.

Abstract: There is disclosed a device for dispensing a chemical wherein a stack of dry chemical tablets are contained within a receptacle. Sealing means are provided to seal around each tablet and the inner wall of the canister so that only the upper surface of the top tablet is exposed to the circulating water. The tablets are not exposed to the flowing water until the tablets above have been eroded away successively to provide leak paths around them.

Abstract: A rotary plug valve having a smooth, cylindrical inner sealing surface between the flow passageways with a grease fitting port opening through it. When the valve plug is turned to an intermediate position in alignment with the grease fitting, a charge of grease may be introduced through the fitting to be confined by a seal ring on the plug. When the plug is thereafter turned, a quantity of grease is distributed over the inner surface to facilitate valve operation.

Abstract: A fitting for a swimming pool return line comprising a housing with a cylindrical extension that may be inserted into the return line and an outer end closure in which the main nozzle is swiveled for directional control of surface circulation. A slot in the bottom of the housing is of adjustable size for bottom circulation. The fitting is secured in place by pulling sloping, radial legs toward planar disposition which would bear against the inner surface of the return line.

Abstract: An electrical device in a buoyant, watertight housing, with electrical circuitry, including a battery, to illuminate an incandescent lamp to project either dispersed light or a beam through the translucent bottom of the housing, and to power a radio, as well as a water temperature thermometer. A handle is provided so that the device may be used as a portable lantern and/or radio.

Abstract: A three-way rotary plug valve comprising upper and lower radial arms carried on top and bottom shafts and supporting an integral arcuate closure member between them. The upper shaft extends through a bearing in the top closure and carries a sector position indicator having an arcuate outer surface which overlies and is coextensive with the arcuate closure sealing surface so that the precise position of the closure is apparent at all times. Marks on the top cover depict the locations of the flow passages and cooperating stop means on the cover and the position indicator prevent complete blockage of the inlet passageway from the pump.

Abstract: A vacuum cleaning system for a therapeutic tub that utilizes an aerating intake for jet nozzles located around the tub. A vacuum hose is connected to the air intake so that its capacity to draw in air is utilized to draw in spa water and expell it at the jet nozzles. A vacuum head, which is connected at the other end of the hose, is moved along the bottom and sides of the tub to draw in the water, as well as leaves and debris, which are trapped at a filter screen.

Abstract: A self contained fuel heating apparatus for the heating of fuel for an internal combustion engine to raise the temperature thereof prior to the passage of the fuel into the engine for combustion. The fuel heating apparatus includes a tank defining a chamber having cooling medium inlet and outlet means to allow circulation of heated cooling medium in the chamber. A portion of the fuel line passes through the chamber where heat is exchanged from the cooling medium to the fuel prior to combustion. An auxiliary heater unit maintains the fuel and cooling medium heated in the chamber when the engine is not in operation to facilitate starting of a cold engine once again.