Abstract: A cleaning kit adapted to clean a large area comprises a preliminary cleaning device, a finishing cleaning device, and a cleaning cart including a base frame, a handle having a retaining member and at least two containers situated on the base frame. The preliminary and finishing cleaning devices include a plurality of preliminary and finishing cleaning appliances respectively, the appliances being adapted to be removably connected to each end of the cleaning device. The base frame of the cleaning cart includes at least two wheels connected at one side of the bottom of the base frame and a plurality of floor engaging projections situated at the other side of the bottom of the base frame. The preliminary and finishing cleaning devices are retained in the retaining member of the handle, while the preliminary and finishing cleaning appliances are separately disposed in the two containers.

Abstract: A screen printing device for T-shirts and the like including a flat perforated portion on which the T-shirt is positioned, a vacuum being applied to cause the ink to go through the printing screen.

Abstract: A cover for an instant hot or cold pack for use on injured portions of the body where immediate heating or cooling of an affected body part is required. The cover is adapted to be selectively used in either a folded configuration wherein the pack is retained within the cover for placement on the injured area of a large body portion, or in various wrap around configurations wherein the cover can be fastened in surrounding relationship with limbs of various sizes and configurations with the pack retained in intimate contact with the injured area.

Abstract: Oxalic acid, dispersed in glycerol is heated to form formic acid which is then heated at a higher temperature to form hydrogen. By-product carbon dioxide is absorbed. The hydrogen is used directly with a fuel cell to produce electricity or as fuel for an internal combustion engine.

Abstract: A flow selectable fluid mixing device having a main manifold member (10) with a main fluid path (13) and a venturi creating conical secondary fluid path (14) and a rotatable manifold member (12) mounted on the main manifold member (10). The rotatable member (12) has valve gate means (19) which rotates within the main fluid path (13) of the main manifold member thereby controlling the fluid through that path. The rotatable member (12) also has an auxiliary fluid supply orifice (27) alignable with a venturi orifice (28) which is in fluid communication with the secondary conical fluid path (14) of the main member (10). The auxiliary fluid supply orifice (27) is in a fixed position with the valve gate means (19) such that three qualities of flow are selectable as the rotatable member (12) is rotated.

Abstract: A distribution system for conducting a mixture of oil droplets and air to surfaces to be lubricated, comprising a main inward flow duct (1) connected to a source of oil droplets dispersed in air, and at least one distributor unit (2) connected to said inlet duct; said distributor unit including a baffle means containing at least two alternately and symmetrically spaced groups of conduits connecting with said inlet duct; each said groups of conduits leading to a separate outlet channel.

Abstract: A method for making simulated brick or tile wall or floor using cement, water-based adhesive and water-insoluble powdered pigment. The mixture is applied and then partially set. Scoring indentations are made to remove cement. After being completely set, mortar is placed in the indentations as a grout and allowed to set. The final step is a clear water-resistant coating on the entire surface.

Abstract: A plurality of interconnecting bumper units. Each unit has a protrusion on one end and a notch on the other with vertical apertures so that ropes may be inserted to hold the interconnecting bumper units at the desired level along the side of a boat.

Abstract: In the method of recovering oil from oil sand wherein the oil sand is tumbled in an aqueous alkaline solution to form a floating mass in which the oil is dispersed and the oil then recovered from the mass, the step of including in the aqueous alkaline solution 0.3 to 100 parts per million of a water-soluble member of the group consisting of anionic polyelectrolytes having a low molecular weight, acrylic acid, mannuronic acid and the sodium salts thereof.

Abstract: The heat sink underlays the structure served and comprises a shallow permeable layer near the surface through which water is circulated and the earth mass below it with which heat is exchanged by conduction and by controlled steady seepage and recycled by pumping from a deep level and by thermal conduction or both.

Abstract: A rotary hook and bobbin assembly for a lock-stitch sewing machine. The bobbin has no case but has a flat end plate and a convexly curved end plate. The bobbin holder has a post with a means for locking the bobbin and a relatively wide undergroove in its wall for adjusting tension.

Abstract: A portable liquid metering device for detachably securing to the opening of a liquid container and adapted to discharge a predetermined volume of liquid upon tipping and having a register for counting and displaying the number of times the bottle is tipped.

Abstract: A sprue bushing for an injection molding machine comprising a body surrounding a core. The core has a central passageway for flow of the plastic from the nozzle of the machine to the mold and has on its exterior surface longitudinal grooves. Assembly of the body and core forms fluid channels with the grooves. The temperature of the bushing is controlled by the flow of water through the channels.

Abstract: Trunks and luggage having retractable wheels connected to a wheeling handle. The motion of each wheel is controlled by a cam slot so that the wheel moves out when the handle is extended but returns to storage position when the handle is retracted. Any required lost motion in extending the handle is provided by either an interlocking wire loop or a curved cam slot.

Abstract: A portable liquid metering device for detachably securing to the opening of a liquid container and adapted to discharge a predetermined volume of liquid upon tipping and having a register for counting and displaying the number of times the bottle is tipped.