Abstract: A novel method and apparatus for supporting a vertical cylinder of wet cement surrounding a verticle pipe passing through a horizontal concrete slab in which one leg of an L-shaped piece is wrapped around the vertical pipe just below the slab and the other leg of the L-shaped piece is slit to form a series of slats which radiate horizontally around the pipe. A circular sheet of moisture resistant material having a hole in its center corresponding to the diameter of the pipe and slit from its center to its outer edge is slipped around the pipe just above the slats of the L-shaped piece, which is then pushed upwards on the pipe to press the sheet against the lower surface of the concrete slab. The piece and sheet are secured in position by a wire wrapped and twisted about the leg of the piece wrapped around the pipe. Wet cement can now be poured from above into the void between the pipe and the slab to be supported during its drying by the sheet and piece.

Abstract: A unique water powered dishwasher having an improved rotatable spray arm and liquid detergent dispenser. The liquid detergent dispenser is located directly above the chamber which feeds water downwardly into the central hub of the spray arm. The rotatable spray arm is suspended from an axial shaft that also rotates and which is supported by the bottom of the liquid detergent dispenser, thus using liquid detergent as a lubricant to facilitate rotation of the spray arm. Water forced upwardly from the chamber leading to the spray arm lubricates the adjacent surfaces of the rotating hub and the stationary lower end of the chamber to further facilitate rotation of the spray arm. The top cover and base which contains the dishwasher have been designed for minimal storage space when not in use. The top cover, when inverted, will accept the bottom half of the dishwasher, thus requiring little storage space.

Abstract: A novel chair is made from a 30 gallon capacity galvanized sheet steel garbage can and the lid of a 20 gallon capacity garbage can. The back of the chair is formed by cutting away almost half of the upper ten inches of the 30 gallon can and rolling the cut edge of the can over a wire to form an upper edge of the chair similar to the original rim of the can. The seat of the chair is formed by inserting the inverted lid of a 20 gallon can into the 30 gallon can and securing it in a horizontal plane within the 30 gallon can by a plurality of bolts and a series of vertical straps running from the lid to upper rim of the can. A padded cushion is placed upon the inverted lid to serve as the seat of the chair.

Abstract: The tool is designed for use by a denture wearer after the chemical cleaning of the denture or partial denture in the home. The tool is a double ended instrument with two blades mounted on opposite ends of an elongated handle, which handle preferably has a square cross-section and is made of plastic. One blade is spear-shaped and sharpened to a knife edge along its leading edges and at its apex. The second blade has a convex concave configuration and a rounded tip with all edges of this blade including its rounded tip sharpened to a knife edge.

Abstract: A hand held electric motor driven drill is coupled by novel means to an internal combustion engine to start the engine. The end of the engine shaft is threaded to receive an elongated nut having a pair of V-shaped slots in its upper end, each slot having one side parallel to the axis of the shaft and the other side at an angle of 60.degree. to the first side. The chuck of the drill is fitted with a flat faced tool made from a conventional wood bit whose tip and cutting edges have been rounded off to provide a safe and secure coupling with the slots and hole in the end of the nut threaded onto the engine shaft. With the tool pressed into the slots in the nut, the drill motor is energized to rotate the tool. The flat faces of the tool bearing against the two sides of the slots parallel to the axis of the shaft force the shaft to turn at the speed of the drill until the engine is started.

Abstract: An extendable bowsprit pulpit for a fishing boat, comprising an elongated pulpit affixed to the bow of the boat, a slidable pulpit extension which fits into the elongated pulpit and is capable of being retracted to lie mainly within said elongated pulpit and of being slidably extended so that the major portion of said pulpit extension lies forwardly of the elongated pulpit as an extension thereof, a pair of bow supports each having one end attached to the forward portion of the elongated pulpit and its other end connected to a bracket mounted on the boat's bow beneath the elongated pulpit, a slidably extendable railing surrounding the bowsprit pulpit in both its retracted and extended positions, and power operated means connected to said slidable pulpit extension for extending and retracting said pulpit extension.

Abstract: A plural component dispensing system includes supplies which furnish first and second components under pressure to a dispensing apparatus having first and second valves, respectively. Each of the valves includes a rotatable valve member in a combination retainer and seat. The valves are connected to first and second pinion gears, respectively, and a rack engages each of the pinion gears. The rack is attached to a piston which is disposed for reciprocation in a cylinder in response to fluid pressure on one side or the other of the piston. Actuation of the piston in a first direction provides paths for component flow through the first and second rotatable valve members and through first and second orifices, respectively, into a mixing chamber. The first and second orifices are disposed to provide impinging streams of the first and second components, the impingement insuring complete and thorough mixing of the components.

Abstract: An electrostatic, coating-dispensing apparatus includes an electrode upon which an electrostatic potential is impressed. The electrostatic potential is developed by a switching circuit, autotransformer and voltage multiplier from rectified line voltage. The entire apparatus is housed in a hand-held applicator to which line voltage is supplied. The apparatus includes a socket defined at one end thereof for interchangeably receiving containers holding various colors or types of coating material. Each container includes an electrode for contacting the first-mentioned electrode. The containers are shaped to fit snugly into the socket to hold the two electrodes in contact. An outer end wall of each container has a mesh portion through which charged particles of coating material from the interior of the container pass when the apparatus is activated.

Abstract: Apparatus for determining the amount and location of imbalance in an article which is to be balanced about its axis includes a table for receiving the article and for positioning its axis. The table is supported upon a base for substantially free tilting movement generally about a point on a vertically extending axis defined by the base. A number of proximity transducers for sensing the orientation of the table relative to the base are provided. A pair of force coils positioned in quadrature about the axis between the base and the table are responsive to the proximity transducers to apply forces between the table and the base to bring the table and the article which rests thereon into a substantially neutral orientation with respect to the base. The method of the present invention comprises the steps of placing the article on the table with the article axis at a predetermined position thereon.

Abstract: An apparatus for controlling a color change sequence of automatic paint spray equipment. The apparatus controls the performance of various cleaning functions when it is desired to convert the spray equipment from spraying one color of paint to spraying of another color of paint. The apparatus includes a fluid motor coupled through a reducing transmission to a drum-type programmer. The drum-type programmer includes a set of program sections, each section being divided into a plurality of sectors and each sector adapted to receive a cam plug. Each section is programmed by inserting cam plugs in selected sectors thereof. Fluid switches are mounted adjacent the drum programmer, at least one switch being associated with each of the sections of the drum programmer and responsive to the presence and absence of cam plugs from various ones of the sectors in its respective section of the drum programmer to control a color change function.

Abstract: A method of atomizing liquid paint using a rotating atomizing device and electrostatically coating an article with a smooth homogeneous film of paint and without the generation of foam or other surface irregularities on the article being coated, wherein an electrostatic field is established between the peripheral edge of the rotating atomizing device and the article to be coated and the liquid paint flows toward the edge of the atomizing device as a continuous thin film, which film is formed into a circumferential series of branch flows of narrow width flowing in the peripheral direction of the atomizing edge, and the liquid paint is atomized from the series of branch flows as they are projected beyond the edge of the atomizing device. The rotary atomizing device may be in the form of a bell or disk and includes a plurality of shallow grooves near its periphery preferably extending radially and of increasing depth in the direction of paint flow and terminating at the discharge edge.

Abstract: A hand-held grinder including a motor, a motor output shaft and a grinding tool mounted on the motor output shaft. Water is supplied from a source through a port into a sealed annular chamber surrounding the output shaft. A bore extends concentrically through the shaft between a point adjacent the annular chamber and the end of the shaft remote from the motor. Communicating bores extend radially through the shaft and through a collar keyed to the shaft from the concentric bore to the annular chamber. Additional bores, adjacent the end of the shaft remote from the motor, provide communications between the concentric bore and the outside of the shaft. Preferably, the sum of the cross-sectional areas of these last-mentioned bores is relatively less than the cross-sectional area of the concentric bore. Water dispensed through these communicating bores is atomized by rotation of the motor output shaft and grinding tool.

Abstract: A simple, inexpensive, hand-held and operated apparatus for providing a substantially immediate indication of the density of, and charge on, airborne particulate contaminants of a predetermined size or within a predetermined size range includes a first filter for removing particulate contaminants having a size greater than the maximum size of the range, and a second filter for passing all particulate contaminants having size smaller than the minimum size of the range. The two filters are arranged in series in a housing, and a hand-operated pump having a known capacity is used to draw contaminant-laden air through the series filters. A conductive screen is placed against the second filter to provide an electrical indication of the polarity of the charge on the contaminants trapped by the second filter.

Abstract: A method and apparatus for correcting imbalance occurring in pneumatic tires during their manufacture. Correction is made by depositing on the inside surface of the tire, at a balance-correcting position, a measured quantity of an uncured, quick-curing, urethane or other liquid elastomer composition which bonds to such surface when cured, and curing the composition in place against the surface. The surface is cleaned in advance, as by washing, scrubbing, and/or abrading, to remove mold release agents and the like and to expose the bare rubber of the tire wall for bonding. The elastomer is desirably deposited in a pool, but may be dispensed in a stream of air or other gas directed toward the deposit. The air reduces the thickness of the pool and feathers its edges and thereby reduces the discontinuity between the deposited material and the tire surface, and promotes bonding.

Abstract: A system for electrostatic deposition of a coating on an article from a charging device includes a direct current high voltage supply having first and second terminals across which the high voltage is impressed. The article to be coated is held at a potential substantially equal to the potential on one of the high voltage terminals. The article is suspended for relatively free movement toward and away from the device. The system includes a high-speed switch coupled between the high voltage terminals and a control circuit for controlling the switch. A sensing resistor in the high voltage output circuit monitors the current between the high voltage terminals. The control circuit includes a slope-detecting or fixed difference circuit responsive to the sensed current to detect too-rapid changes therein, such changes being indicative of close proximity of the article to the charging device and the possibility of high voltage arcing therebetween.

Abstract: Apparatus for determining the amount and location of imbalance in an article which is to be balanced about its axis includes a table for receiving the article and for positioning its axis. The table is supported upon a base for substantially free tilting movement generally about a point on a vertically extending axis defined by the base. A number of proximity transducers for sensing the orientation of the table relative to the base are provided. A pair of force coils positioned in quadrature about the axis between the base and the table are responsive to the proximity transducers to apply forces between the table and the base to bring the table and the article which rests thereon into a substantially neutral orientation with respect to the base. The method of the present invention comprises the steps of placing the article on the table with the article axis at a predetermined position thereon.

Abstract: Electrostatic deposition of air atomized liquid coating materials by adjusting the conductivity of the coating material and the voltage applied thereto so that virtually no air ionization occurs. Thus, essentially all of the current reaching the object to be coated is carried by the sprayed material thus minimizing the charge build-up on the subject, and eliminating charge accumulation on ungrounded objects out of the spray zone.

Abstract: A fiber cutter for cutting lengths of glass fibers and glass rovings into short lengths includes a cutter roller carrying a plurality of cutting blades and shaped annular means cooperatively associated with a resilient back-up roll means. In operation the force executed between the cutter roller and the back-up roller controls the spacing between the rollers by forcing the shaped annular means into the resilient surface of the back-up roller means. In addition to permitting control of spacing, the coaction of the cutter roller with its shaped annular means and the resilient back-up roll means holds the rollers in alignment, reduces the bounce between the rollers as the blades engage and pass over the back-up roll means and permit force to be used to build the blades in engagement with the back-up roll means without blade breakage.

Abstract: Complexly-shaped articles of EPDM material are treated with benzophenone by cleaning the article, coating it with benzophenone and irradiating the benzophenone-coated article with ultraviolet light. The complexly-shaped articles are uniformly treated by exposure within a reflective enclosure that bathes the article in light by transporting it while rotating around an ultraviolet source and between the source and the reflective enclosure.