Abstract: An impeller in a pump, in particular a sewage pump, the passage of which is required to have a given transmission capacity for transmitting the impurities present in the sewage water. When small volumetric flows are being pumped at great delivery lift, it would be advantageous, with a view to achieving good efficiency, to make the passage narrower than the inlet aperture, but up to date it has not been possible to do this without impairing the transmission capacity. In the impeller of the invention, this has been solved in that for achieving sufficient transmission capacity one wider point has been provided in the passage, located between the inlet and outlet margins of the impeller blade.

Abstract: An improved sugar cane grab loader has a hydraulically actuated grab and supporting boom, and a mechanical pushpiler. The pushpiler has floating teeth to prevent undue ground penetration during its scraping action. The teeth move in free but limited fashion in a rearwardly inclined direction. The boom lifts the grab from the soil by a controlled height during closing action of the grab around the cane bundled on the ground.

Abstract: A high strength powder metal part formed from an alloy of iron, nickel, molybdenum and carbon and having an ultimate tensile strength of at least 175,000 pounds per square inch. The powder metal part is made by mixing the alloy with a lubricant, forming the mixture into the desired part shape, sintering in a dissociated ammonia atmosphere, and cryogenically cooling the sintered part.

Abstract: N-methylol derivatives of herbicidal 4-amino-1,2,4-triazine-5-ones can be prepared by reacting formaldehyde with a 4-amino-1,2,4-triazine-5-one slurried in water under basic conditions. The N-methylol derivatives can be surface-modified by slurrying particles of the derivatives in water and treating with a strong acid or strong base, producing a product that releases the original herbicidal 4-amino-1,2,4-triazine-5-one in a controlled manner.

Abstract: An x-ray cassette is modified to facilitate the quick release of x-ray film by securing the entire surface of the resilient supports for the intensifying screen to the cassette's fixed plate. Also an edge of the intensifying screen is bent in the direction of the fixed plate.

Abstract: A grounding connector for a shielded cable. The connector includes a housing which encloses a stripped length of the cable and a conductive element in contact with the shield. Slots in the housing adapt it to fit in a notch on a conductive panel. The element has opposed, projecting, bent arms which contact the notched edge of the panel.

Abstract: A thermoplastic, melt-processible, elastomeric composition based on partially crosslinked compatible blends of an ethylene copolymer and a vinyl or vinylidene halide polymer.

Abstract: In a water tube boiler comprising a housing enclosing tubes bent to form vertical chambers successively traversed by rising hot combustion gases, the tubes being connected at the bottom to the interior of the jacket of a jacketed cylindrical combustion chamber, which jacket is supplied with cold water, and at the top to a steam manifold, the manifold and jacketed chamber project beyond the housing with a downcomer outside the housing connecting the top of the jacket and the lowest part of the manifold, thereby permitting the boiler to operate with a shallow level of water in the manifold, speeding up circulation of water and its heating, and permitting substantially dry steam to be discharged from the upper manifold. The chambers may include baffles which are angled so that the hot gas hits them at an angle less than 90.degree. so as to be deflected thereby in the direction of its advance, thereby avoiding hot spots.

Abstract: A modification to a reel type staple cutter that includes a housing surrounding the cutter reel. The housing has a cam slot sized to permit passage of a single tow but to prevent passage of a knot tieing together two ends of tow. As the cutter turns the knot slides along the outside of the slot reaching the top of the housing. The knot remains on top of the housing until the ends of the knot are cut. Means are provided to remove the knot.

Abstract: The invention is directed primarily to a method of doping tin oxide with Ta.sub.2 O.sub.5 and/or Nb.sub.2 O.sub.5 using pyrochlore-related compounds derived from the system SnO--SnO.sub.2 --Ta.sub.2 O.sub.5 --Nb.sub.2 O.sub.5 for use in thick film resistor compositions. The invention is also directed to thick film resistors containing the above-described pyrochlore-related compounds and to various compositions and methods for making such thick film resistors.

Abstract: A peroxide-curable fluoroelastomer composition which can be readily removed from a mold cavity without tearing which comprises a fluoroelastomer whose interpolymerized units consist essentially of units of tetrafluoroethylene, units of perfluoroalkyl perfluorovinyl ether, units of a bromine-containing olefin and, optionally, units of ethylene, and from about 0.05-2 parts per 100 parts fluoroelastomer of an N,N,N',N'-tetrasubstituted 1,8-diaminonaphthalene having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently alkyl groups of 1-6 carbon atoms, phenyl or benzyl, R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 can be joined to form a 5- or 6-membered heterocyclic ring in which a carbon atom can be replaced by an oxygen or a sulfur atom, R.sub.1 and R.sub.3 and/or R.sub.2 and R.sub.

Abstract: A process for preparing light monoolefins, particularly ethylene and propylene, from a feed stream comprising a reactant consisting of methanol, dimethyl ether or mixtures thereof in the presence of a boron-treated aluminosilicate zeolite catalyst is disclosed.

Abstract: A photosensitive ceramic coating composition which is fireable in a substantially nonoxidizing atmosphere comprising an admixture of:(a) finely divided particles of ceramic solids having a particularly defined surface area-to-weight ratio and particle size, and(b) finely divided particles of an inorganic binder having a particularly defined surface area-to-weight ratio and particle size, dispersed in an organic medium comprising(c) an organic polymeric binder and(d) a photoinitiation system, dissolved in(e) photohardenable monomer and(f) an volatile organic solvent.

Abstract: An apparatus for separating individual conductors in an array thereof is characterized by a member having an abutment surface operable against the axial ends of the conductors to cause the same to buckle radially outwardly of the axis of the cable to form a buckled array of conductors. A rotator assembly is provided for rotating each conductor in a buckled array past a reference position. A grasping finger selects the conductor disposed at the reference position and transposes the same to a different predetermined position.

Abstract: An improved anvil for supporting a printed circuit board during insertion of a terminal through the board.

Abstract: A castable ceramic composition comprising finely divided particles of ceramic solids dispersed in a solution of alkyl acrylate/alkyl methacrylate/carboxylic acid or amine multipolymer in solvent. The ratio of the weight average and number average molecular weights of the multipolymer must be from 2 to 5.5.

Abstract: A process for the preparation of 2,2'-azobis(2-methylbutanenitrile) in high yield, good quality and filtering and drying characteristics by reacting 2-amino-2-methylbutanenitrile with a metal hypochorite in the presence of water and a mixture of surface active compounds at a temperature of about -10.degree. C. to about 30.degree. C. and recovering the 2,2'-azobis(2-methylbutanenitrile) from the reaction mixture.

Abstract: A method for the recovery of silver from photographic film having a polyester base and a macromolecular organic polymer coating to which is adhered a light sensitive silver emulsion layer. The process includes mixing small film pieces in a hot aqueous liquid having a solids concentration level of at least 25 percent by volume. The mixture is subjected to conditions of high shear to remove the silver emulsion. The liquid containing the silver emulsion is then separated from the film pieces and the silver is recovered from the liquid.

Abstract: High molecular weight anisotropic melt-forming polyesters are melted and then spun below the melting point through spinneret orifices of less than about 25 mils in diameter to reduce nonuniformity in resulting filaments.