Abstract: A windshield wiper blade connector (20) is provided for connecting a plastic windshield wiper blade (14) to the side pin (61) of a side pin wiper arm. The connector includes a U-shaped spring (52) seated in a cavity (32) in the bridge of a wiper blade (14). Intermediate portions of the sides of the U-shaped spring (52) intersect in a chordal fashion the transverse pin-receiving aperture (42) in the yoke (16) of the blade. The pin (61) with a reduced diameter portion (62) is inserted in the aperture (42) so that the intermediate portions (55,57) of the U-shaped spring (52) will seat in the reduced diametered portion (62) of the pin (61) to lock the blade (14) to the arm. The U-shaped spring (52) can be flexed to release the pin (61) from the blade (14).

Abstract: A brush-beater roller for a vacuum cleaner in which the roller is elongated and is helically twisted about its longitudinal axis, said roller having elongated dovetail slots for accommodating a brush bristle holder, and a beater bar. The dovetail slots are arranged to receive radial projections on the integral belt pulley which correspond in shape to the dovetail slots. The roller further has means thereon for preventing the bristle holders from coming out of the dovetail slot upon rotation of the roller.

Abstract: The use of liquid aspirators which are connected to conventional vacuum cleaners is known. In this invention a reservoir-body of an elongated form extends at its lower part to a nozzle, and at its upper part to a lid which is provided with an end-piece for the attachment of an external hose from a conventional vacuum cleaner. The said lid is placed on the inside of a lid-handle which extends above the reservoir-body. A tube following the nozzle penetrates into the interior of the elongated body-reservoir to discharge the liquid, where in the interior of the said body spacers and separators are provided, while a transparent window permits viewing the level of the liquid and a float closes the air vacuum when the level of the liquid reaches a predetermined value. Some baffle-plates and a filter are provided to prevent sprayed drops of water from being drawn towards the vacuum cleaner and damaging its electric motor.

Abstract: A paint spray apparatus having an airless pump driven by an internal combustion engine, the pump being adapted to provide a continuous paint flow to a spray nozzle or through a relief valve when the nozzle is closed. There is a pressure actuated throttle valve connected to the pump outlet and connected to operate an engine governor or throttle. The throttle valve is set to reduce the engine speed to idling when the spray nozzle is closed, and to reduce the fluid flow through a relief valve which is opened when the nozzle is closed. The throttle valve includes two aligned chambers having an elongated piston extending into both chambers. The pump outlet is connected to one of the chambers in which the outlet pressure acts on the piston to cause it to slide in the chambers and to move the other end of the piston into contact with a governor arm or throttle to effect the slowing of the engine and of the pump to reduce the flow of the fluid out of the pump.

Abstract: A blower device is disclosed for sweeping light debris and clutter. The device includes a pressurized air supply source in communication with a receptacle. A standing head of pressure is developed in the receptacle and then discharged through a nozzle in a jet of air at a substantially constant pressure.

Abstract: A tool for applying a liquid stain to a flat surface to impart a timber grain effect comprising a paint brush, a bristle retaining slidable plate on one side of the brush and a slidable comb plate on the other side of the brush. Both the plates have an elongated slot which engages a bolt which passes through the paint brush. The comb adjustably separates the brush bristles into discrete bunches to permit the application of stain to impart a wood grain pattern.

Abstract: A forage press is disclosed for use in injecting forage or other feed material into an elongated flexible horizontal forage receptacle or silo. The forage press includes an injection chamber for introducing material into the forage receptacle and a press wheel which presses the material through the injection chamber into the receptacle. The press wheel is formed in a circular shape and includes a plurality of sectors each of which is formed at a canted angle so as to press the forage material into the injection chamber as the press wheel is rotationally driven by an external source of power.

Abstract: A brush attachment for a tennis racket including a plurality of bristles embedded in a flexible body member having a channel formed therein for fitting over and conforming to the shape of a tennis racket bow. A strap is removably attached to each end of the body for holding the brush onto the tennis racket bow.

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 power brush housing assembly formed by a wheeled chassis with a housing overlying the chassis and fixed thereto bears transversely, an elongated scrubbing brush roller, and a motor for driving the brush roller to scrub the surface traversed by the power scrubber. A triangular shaped vacuum recovery head is hinge mounted to the face of the housing to permit tilting of the head from its normal vertical orientation to an inclined orientation and to effect movement of the mouth of the vacuum recovery head away from the surface being scrubbed to permit the power scrubber to move over minor obstructions.

Abstract: An improvement is disclosed in an apparatus of the type employed for cleaning textile coverings, especially rugs and carpeting where the apparatus is provided with at least one spray jet connected to a supply of cleaning fluid and a suction jet is connected to a dirt-laden fluid receptacle. Apparatuses of this type have at least one suction turbine connected to and actuated by a motor where the suction turbine has a suction pipe in fluid communication with a receptacle for dirt-laden fluid typically dirty water. According to the invention, the receptacle for the dirt-laden fluid is divided into a plurality of interconnecting vacuum chambers by use of vertically disposed partitions, each of which vacuum chambers is in fluid communication with a common sump disposed therebeneath. The partitions extend vertically over most of the height of the chambers. Each of the vacuum chambers is in fluid communication with its own suction turbine via a suction pipe entering the vacuum chamber.

Abstract: An apparatus cleans footwear with a closed system utilizing brushes and with recirculating compressed air. The apparatus has a housing and a cover containing a grill mounted to the housing by springs. Beneath the grill are a pair of cylindrical brushes which are rotated by electric motors in a direction toward the center of the grill. A combined vacuum cleaner and air compressor beneath the grill provides both a source of compressed air to help clean the shoes and suction to collect the dirt and any other debris dislodged by the apparatus. The brushes clean the bottoms of the shoes and direct any dislodged dirt and other debris toward the center area of the grill. A pair of air tubes disposed along the edges of the grill direct the compressed air over the shoes and toward the center of the grill, along with any debris dislodged thereby. Beneath the center of the grill is a removable collection tank having a slot facing the grill and having an open end connected by a filter to the intake of the air compressor.

Abstract: A rotor support in turbo and like machinery. A rotor has bearing support in a tubular cartridge member. In a cantilever construction, the cartridge member is fixed at one end to a first housing wall and extends perpendicularly therefrom to a non-rigid mounting in another housing wall in a longitudinal spaced relation to the first. Installed as an interface member between the opposite or outer end of the cartridge member and the second housing wall is a resilient metallic C-ring. The C-ring achieves substantially constant support characteristics throughout wide ranging and repeated thermal expansions and contractions of contacting parts, and over a relatively long period of time.

Abstract: A suction power unit for a wet vacuum machine includes a dome-shaped housing closed off by a bottom wall with an inlet defined in the bottom wall and a centrifugal blower aligned with the inlet. A second wall is parallel to the bottom wall and spaced therefrom defining an exhaust chamber about the centrifugal blower and hermetically separating the motor on the centrifugal blower from the exhaust chamber. An inlet opening in the second wall and a third wall spaced from the second wall and parallel thereto define a chamber, and a second centrifugal blower is provided in the so-formed chamber between the second and third walls with the motor beyond the third wall hermetically sealed from the chamber formed between the second and third walls.

Abstract: A soot blower of the long retracting type includes a box beam within which a lance tube is longitudinally movable by means of a carriage suspended on rollers to travel along an integrated rack/track assembly secured to the inner walls of the box beam. Such rack/track assemblies have longitudinal rails on their tops for the rollers and longitudinal racks secured to the bottoms of the rails. The racks are engaged by underlying walking pinions journaled in the carriage and positioned directly beneath the rollers. In a modification, the combined rack/track assemblies include bottom rail surfaces in addition to top rail portions, and bottom rollers are employed in addition to the pinions and top rollers. In another modification, the carriage is supported by an I-beam the bottom flanges of which constitute the tracks, a single rack being secured to the underside of such bottom flange.

Abstract: An attachment for converting a conventional filament trimmer into a vacuum or blower for removal of grass clippings. The attachment includes a fan housing removably mounted to the trimmer in either a vacuum or blower mode of operation and a fan removably mounted to the rotatably driven shaft of the trimmer. The fan housing has an air inlet scoop and air discharge chute.

Abstract: Double insulated, electrically energized liquid handling apparatus, usable without a separate ground line connection, e.g. a jet hot water extractor for dispensing and wet vacuum extraction recovery of rug and carpet cleaning liquids,including an electrically insulating container, e.g. of non-conductive material such as plastic, thereby providing a first exterior insulating barrier, which protectively contains a reservoir connected to a delivery pump adapted for connection in turn with an external applicator for pumping, preferably hot, liquid from the reservoir for application to a surface to be cleaned, an electrically isolated delivery motor, e.g. an open coil induction motor, including a rotatably mounted shaft operatively connected for driving the pump, preferably via a pump journal having a leakproof double seal bearing, and insulating mounting structure, e.g.

Abstract: A multi-motor suction cleaner of the upright type having a power-driven rotary brush operated in the usual manner with a low-suction, high-volume airflow produced by a typical first motor-fan unit in the cleaner suction nozzle housing to carry out a usual floor, rug or carpet cleaning operation. The cleaner is converted to efficient off-the-floor cleaning merely by selectively uncovering an opening in a closed suction chamber carried by the cleaner containing a second motor-fan unit producing high-suction, low-volume airflow. A converter member mounted on one end of a typical flexible attachment hose is inserted in the uncovered opening. This automatically energizes the second motor-fan unit. The selective and alternate operation of the two motor-fan units provides a single cleaner that can carry out most efficiently every cleaning operation heretofore requiring both a canister and an upright cleaner to perform.

Abstract: A hot water extraction system including a water tank having means for connection to a container containing a vacuum motor and to a water extractor and a hot water applicator, the applicator having a connection for attachment to a normal faucet, a hose from the faucet passing through a chemical cleaning solution, and a valve for the emission of a predetermined amount of the water including the solution, the vacuum created by the vacuum motor in the container creating a vacuum in the water tank and thereby providing suction through a hose leading to the water extractor whereby the hot water containing the solution which has been emitted on to a surface such as a rug by the applicator is drawn into the water tank where it is accumulated until the cleansing is completed.

Abstract: A shoulder-supported pneumatic sweeping apparatus including a frame having attached to its upper portion a grip having a shoulder strap connected thereto, and formed at one end thereof with an air outlet port connected through a flexible pipe to an air ejecting pipe having an operating handle attached thereto. The frame is supported by the shoulder of the operator through the shoulder strap and prevented from moving unsteadily with one hand while the air ejecting pipe is operated with the other hand.