Abstract: Quick attachment of crop handling headers to harvesters employs one or more wedge locks, utilizing the mechanical forces thereof to, in turn, tightly and firmly wedge an elongated tongue portion of the header into mating relationship with a header-supporting channel member on the harvester. For fast and easy attachment and release, reciprocable wedge-like latches are jammed into corresponding keepers with progressively increased tightness through use of reciprocable latch shifters readily accessible to the operator at ground level exteriorly of the ends of the header support. An exceptionally strong joint is effected as the latches and their keepers jam the tongue into the channel member.

Abstract: A pull-type folding implement, such as a grain drill, has individual and independent radial flotation for each of its drill units such that each unit can rise and fall, while remaining level, independently of the other, as well as cock and cant independently of the other as may be necessary to accommodate uneven ground terrain, yet the units may be folded into compact, fore-and-aft extending transport positions in which ground wheels thereof are retracted off the ground and the units are carried by a main, fore-and-aft carrier frame of the implement. A third, center unit may be provided between the two outer units and utilizes its own set of ground wheels during both field working and over-the-road travel when the other units are folded in, the center unit likewise having a floating connection with the carrier frame which permits the center unit to rise and fall, cock and cant when experiencing terrain irregularities.

Abstract: A shipping drum containing liquid poloxalene is supported in tilted orientation on a platform scale, and a spigot at the lower end of the drum is operable to cause the poloxalene to flow through piping means and into a pressure vessel. The platform scale provides indication of the amounts of poloxalane received by the vessel. Subsequently, the vessel is sealed and pressurized to approximately 50-60 psi whereupon a valve is opened so that the poloxalene is directed out of the vessel and into a conduit means. A plurality of discharge orifices disposed in the conduit means overlie a dry feed mixer, and the mixer is operable to constantly agitate a quantity of solid carrier such as a vitamin and mineral supplement or, alternatively, a grain such as cracked corn or milo. The mixer provides relative motion between all of the carrier granules and the discharge orifices so that the poloxalene is evenly distributed over substantially all surfaces of the granules.

Abstract: A ball assembly for crossing hot and cold water channels in a faucet mixing valve housing. The ball assembly is used with a hot and cold water faucet and is interchangeable with other ball assemblies when water lines have been inadvertently or intentionally crossed.

Abstract: A burst panel assembly for normally covering a vent opening of structure which defines an area to be protected from the buildup of dangerously high internal pressures has two frangible panels disposed in spaced, face-to-face relationship along with a core of expanded polyurethane foam which functions to dampen vibrations received from the structure and transmitted to the frangible panels. The foam is introduced in an initially flowable condition into the space between the panels and thereafter expands while curing to a solidified configuration for continuously exerting pressure on both of the panels, to thereby substantially reduce the fatigue stress that would otherwise occur along lines of weakness of burst patterns that are formed in both of the panels.

Abstract: A splash bar for use in fill structure of an evaporative cooling tower has an extruded body with an elongated water impingement portion operable to uniformly disperse deflected water throughout the fill structure for contact with passing air. The splash bar body comprises a pair of arcuate in cross section side margins and an elongated, horizontal, flat top segment interconnecting the side margins. The centers of curvature of the side margins are coincident and lie beneath the body, while the width of the flat top segment is in the range of approximately 15% to approximately 35% of the overall width of the body. In preferred forms of the invention, the width of the flat top segment is approximately 25% of the overall width of the body. Advantageously, the body is hollow and includes a pair of spaced, flat, co-planar bottom walls integrally extending inwardly from the side margins.

Abstract: In a drill, there is provided the combination of a pair of foldable pivot frames to each of which is attached a wheeled wing frame for up and down swinging movement, together with a tongue assembly for effecting the folding action, as well as a subframe for each wing made up of a T-frame and a hoe frame especially adapted for opening seed-receiving furrows and pressing the soil in each seeded furrow.

Abstract: A woodworking machine which has a driven woodworking head in the form of a sanding drum, planer head or molding head, the head being supported between a pair of spaced walls and a pair of bearings by a pair of Morse taper plugs, which are received respectively in the opposite ends of the head and which are driven whereby to drive the head, the plugs being removable from the head by shifting the same, when loosened, in longitudinal alignment with the head, whereby the head may be removed from the machine by lifting the same directly upwardly between the walls.

Abstract: A roll up floor mat is provided with rails or sections hingedly interconnected by alternating, flexible strips, which, in turn serve to cushion the mat by use of laterally extending flaps interposed between the floor or other supporting surface and the rail sections, the flaps being integral with the hinge assemblies between the sections.

Abstract: An improved ball bat providing greater gripping comfort and batting power is provided by provision of a bat having a peripherally grooved lower terminal knob adapted to receive the small or little finger of a batter's hand. The bat construction may be used in softball or baseball bats formed of various materials such as wood or aluminum. The finger-receiving groove may extend in a continuous fashion around the entire periphery of the terminal knob, or only part way around the knob.

Abstract: An improved method of porcelain dental restoration is provided which gives strong, aesthetically pleasing restorations in a wide variety of contexts such as inlays, onlays or overlays. The method involves first preparing a tooth requiring restoration by removing the decayed portions and exposing dentin surface, whereupon a lining material (e.g. a glass ionomer) is applied to the exposed dentin. An impression of the patient's teeth is next taken, whereupon a refractory positive impression of the prepared tooth is fabricated. Next, a porcelain restoration is produced by appropriate layering and firing to give a restoration piece which substantially conforms to the shape of the originally decayed portion of the tooth. Finally, the porcelain restoration is fused to the natural tooth by means of fusing cement system which mechanically and chemcially bonds to porcelain, lining cement and adjacent enamel surfaces.

Abstract: A process of treating industrial waste water contaminated with environmentally unacceptable amounts of sulfuric acid and heavy metals such as lead, copper or zinc is disclosed which permits lowering of the concentration of the contaminants to a level permitting discharge to the sewer. Waste water resulting from floor wash and spray washing of lead acid batteries prior to shipment from the manufacturing facility contains sufficient sulfuric acid to cause the pH to normally be at a level of about 2 along with heavy metal contaminants present in concentrations which require treatment for removal before the discharge water will meet EPA standards. The water to be treated is directed to a first reaction and settling vessel where calcium carbonate is added along with an oxidation medium such as air which also functions to stir the stored waste water.

Abstract: In the surgical art of extracapsular cataract extraction, the lens capsule of the eye is irrigated and aspirated for cortex removal through use of a simple, inexpensive system of circulation of an irrigating solution, accompanied by automatic filtering of the aspirated material out of the solution such that the filtered liquid may be reintroduced. Means are included to produce unidirectional flow, and a manually operable bypass feature provides for safety and operator control of the entire procedure to assure accuracy, efficiency, exactitude and the best possible end results. The system is kept filled with the liquid solution in substantial absence of air therewithin.

Abstract: An improved cutter for carpet tiles is provided which can be used to quickly and accurately cut individual tile sections for completing a carpet installation between previously laid field tile and adjacent baseboards or walls. The preferred cutter includes a base plate together with a depending stop designed to engage the exposed edge of a field tile; a horizontally reciprocal, carriage-supported knife blade is mounted adjacent and above the upper surface of the plate in alignment with the stop. In practice a tile to be cut is slid under the knife until it engages the adjacent wall, whereupon the knife is moved horizontally to cleanly cut a tile section for insertion in the space therebelow. Use of a cutter in accordance with the invention can double or even triple the work output of an installer, as compared with conventional trimming practices.

Abstract: A water-based composition for selective stripping of electroless applied nickel from ferrous, titanium and aluminum substrates is disclosed which includes a quantity of a chromic acid which functions as an oxidizing and electrolytic agent, an amount of globular sodium bisulfite which causes the chromium in the solution to substantially remain in a trivalent state, and a sufficient amount of phosphoric acid as a catalyst to enhance removal of electroless applied nickel by the oxidizing and electrolytic agent. Accelerated removal of electroless applied nickel is accomplished by confining the stripping composition in an enclosure, introducing a nickel-coated substrate into the stripping bath, providing a ferrous surface in the bath, connecting a DC source to the substrate serving as an anode while the ferrous surface functions as the cathode, maintaining the DC source at a voltage of about 6 volts, and heating the bath to a temperature of about 120.degree. F.

Abstract: A new stable derivative of ascorbic acid, ascorbate 2-polyphosphate, is disclosed, together with a high-yield method of synthesis thereof. The method preferably includes steps of reacting an ascorbic acid such as L-ascorbic acid or a derivative thereof such as 5,6-O-isopropylidene-L-ascorbic acid with salts of metaphosphoric acid in an aqueous system and in the presence of sufficient base to maintain the pH of the reaction mixture at a level of at least above 9 to obtain 2-polyphosphorylation of the ascorbic acid. In particularly preferred forms, 1 M L-ascorbic acid is reacted in water with 1.5-3 equivalent of sodium or potassium trimetaphosphate at a temperature of 25.degree.-55.degree. C., and an alkali metal hydroxide such as potassium hydroxide is intermittently added to the reaction mixture as needed over a 1-10 hr. reaction period to maintain the pH thereof at a level of about 10.5-12 during the entire reaction.

Abstract: A doll, preferably of fabric material, and generally polygonal in configuration whereby to present a body having a front, a back, a top, a bottom and opposed sides, there being hair on the top of the body and a face on the front of the body. The body is provided with a receptacle in the form of a pocket carried by the body and accessible to a user of the doll, the pocket being located on the body in the position of an ear and simulating an ear of the doll whereby the pocket is normally covered by the hair on the top of the body. The pocket includes a sack portion and a cover flap for the sack portion, the cover flap being swingable to cover and uncover the sack portion whereby items, such as for instance notes, can be placed in the pocket to entrust the contents of the pocket to the doll.

Abstract: A moldable, impulse operation synthetic resin keyboard, and a method of fabricating the same, are provided wherein the keyboard achieves essentially standard, tactile feed and feedback, mechanical N-key rollover protection and precise, reliable output. The keyboard includes a synthetic resin base plate having a plurality of elongated, cantilever mounted flippers, along with a plurality of elongated, laterally spaced, inwardly and opposedly extending, pivotal, key-supporting arms. Upon depression of a key, the associated flipper is deformed until a release point is reached, whereupon the flipper is disengaged, allowing the flipper to quickly return to its rest position. A keyboard output is developed as the flipper, during overtravel thereof past its rest position, strikes a signal-generating assembly.