Abstract: An adjustable leveling apparatus for manhole covers, grates and the like within ground and similar structures, employing an annular extension ring received within an annular base ring having an internal ring seat, the extension ring being provided with inwardly disposed rigid bar members deformable over the ring seat to securely lock the extension ring within the base ring.

Abstract: Photodefined pin and guide arrangements on a connector and a printed wiring board are used to obtain an alignment between the connector and the printed wiring board. A clamp fixed to the connector housing squeezes the connector contact fingers to the connector pads of the board to engage pads and fingers which have been guided into an overlapping position by the guide and pin arrangement.

Abstract: A refrigerated centrifuge in which the bowl is removable from the interior of the casing while leaving the refrigeration coil in place.

Abstract: A riding boot has lengthwise pleats down the back secured together by Velcro fasteners. In the event a rider falls from a horse and the rider's foot is caught in a stirrup, the Velcro fasteners burst open allowing the pleats to unfold so that the rider's foot can be substantially instantaneously released from the boot thereby reducing the risk of injury.

Abstract: A package for connectors and an apparatus for dispensing them. The package comprises an elongated tape or pair of tapes and a plurality of an elongated connector containing tubes secured to and extending across the tape or tapes. The apparatus comprises a stand having upper and lower support members, a slide extending downwardly from the lower support member to a perch, and a stepping device for advancing successive tubes along the support members to the slide. Connectors are removed from the tubes descend the slide and are picked up from the perch by a robot and installed in a printed circuit board.

Abstract: Ionomers of ethylene, unsaturated carboxylic acid and softening comonomer, e.g. alkyl acrylate and/or alkyl vinyl ether having improved low temperature properties are obtained by direct or graft copolymerization at a temperature of from about 100.degree. to about 200.degree. C., followed by neutralization of the carboxylic acid groups with metal ions, such ionomers being characterized by a low level of chain branching of up to about 5.5 chain branches/1000 backbone methylene units.

Abstract: This invention relates to herbicidally active sulfonamide compounds having a heterocyclic carbonyl group ortho to the sulfonyl bridge.

Abstract: A method for reducing broken fibers on the surface of a carbon fiber bundle involves passing the yarn past a suction nozzle having an extended trailing edge which impacts the broken fibers as they pass the slot breaking off the fibers. The broken fibers are transported to a disposal station. The differential in elevation of the leading and trailing edges of the intake slot of the nozzle provide an exposed impacting edge.

Abstract: Improved polymeric filaments spun at high withdrawal speeds of the order of more than 5 km/min, and preferably of 7-12 km/min, wherein the freshly-extruded filaments enter an enclosed zone that is maintained at superatmospheric pressure by a controlled flow of heated air at a low positive pressure.

Abstract: A heat-shrinkable barrier film comprised of an oriented polyolefin film coated on one side with a vinylidene chloride copolymer are disclosed. The films have excellent gas and vapor barrier properties, can surprisingly be made using conventional dispersion coating techniques, and retain acceptable optical properties even on shrinking up to as high as 35% in either transverse or machine directions or both.

Abstract: A partially pre-assembled electrical connector has metal terminals partially inserted in a housing. The connectors are completed by at least partially withdrawing each terminal from the housing, placing the end of a wire in the exposed portion of the terminal, crimping the terminal on the wire, and then fully inserting the terminal in the housing.

Abstract: A protective peripheral cornice of a building which cornice is an equal angle broad flanged beam inserted between the top of the wall and the end section of the ceiling. Such beam is made of light material which is totally enveloped in a metal sheet except for two interruptions in each of which the sheet is replaced by bridgelike means of insulating plastic material which extend for about 1/2 the panel thickness; one of said interruptions being located across the horizontal median plane of the roof panel while the other is located across the vertical median plane of the wall panel. Such interruptions having thus the function of thermal insulations or thermal barriers.

Abstract: Cardiovascular activity is exhibited by compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof, wherein R.sub.1 is alkyl, cycloalkyl, aryl, heterocyclo, --(CH.sub.2).sub.n --Y.sub.2, --(CH.sub.2).sub.p --Y.sub.3 or halo substituted alkyl;R.sub.2 is hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, --(CH.sub.2).sub.n --Y.sub.1, or halo substituted alkyl;R.sub.3 is hydrogen, alkyl, cycloalkyl, aryl, heterocyclo, --(CH.sub.2).sub.n --Y.sub.2, --(CH.sub.2).sub.p --Y.sub.3, or halo substituted alkyl;R.sub.4 is aryl or heterocyclo;R.sub.5 is hydrogen, alkyl, aryl, arylalkyl, cyano, nitro, ##STR2## Y.sub.1 is cycloalkyl, aryl, heterocyclo, hydroxyl, alkoxy, aryl-(CH.sub.2).sub.m --O--, mercapto, alkylthio, aryl-(CH.sub.2).sub.m --S--, amino, substituted amino, carbamoyl, ##STR3## Y.sub.2 is cycloalkyl, aryl, heterocyclo, carbamoyl, ##STR4## amino, or substituted amino; m is 0 or an integer of 1 to 6;n is an integer of 1 to 6; andp is an integer of 2 to 6.

Abstract: A warp knitted fabric of elastomeric and nonelastomeric threads. The nonelastomeric threads are fed from a single warp in a pattern to the front bar while the elastomeric threads are divided into a plurality of sets from a single warp and fed to a plurality of guide bars in a pattern. The guide bars with the elastomeric threads are knit in a repeating stitch pattern having a combination of knit and laid-in stitches for each elastomeric thread.

Abstract: An emulsion preparation arrangement includes an emulsion preparation tank, a jacket which surrounds the tank on its sides and bottom and contains hot water, a plurality of tubes for supplying components of the emulsion and withdrawing the emulsion, and a plurality of ducts each surrounding a respective one of the tubes and containing hot water for heating the ducts with the water in the jacket and the ducts at a temperature of 80.degree. C., to enable the emulsion to be discharged at a temperature of approximately 50.degree. C.

Abstract: A seating assist device including a base member, a seat member for receiving a person to a seated position, a main spring for simultaneously acting as a hinge between the base member and the seat means, and exerting a resilient force biasing the seat member away from the base member, and an arrangement for adjusting the resilient force of the main spring including at least one helper spring sized for close fitting relation with the main spring. An adjustable spring assembly having a main spring with a generally C-shaped portion, at least one helper spring sized for close fitting relation with the main spring for varying the resilient force of the assembly, and means for securing the helper spring to the main spring including a pair of guides on opposite ends of the C-shaped portion and a pair of corresponding grooves on the helper spring for frictionally contacting the guides when the helper spring is manually inserted within the C-shaped portion, is also disclosed.

Abstract: Sulfonylureas derived from acetylenic pyrimidines and triazines, useful as pre- and postemergence herbicides. Typical of this group is 2-[[(4-ethynyl-6-methylpyrimidine-2-yl)aminocarbonyl]-aminosulfonyl]-benzo ic acid, methyl ester.

Abstract: Novel N-hydroxy-N'-sulfonylguanidine compounds are described which possess significant herbicidal and plant growth regulant activity for control of undesired vegetation.

Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substiuted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulf onamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.

Abstract: A plurality of physically separate plastic substates are injection molded, each with at least one pattern of channels formed in a surface of thereof defining a conductive circuit to be formed. The plurality of substrates are then physically connected in a common planar array either by inserting them in corresponding receptacles in a carrier board, by mating peripheral connecting elements, by using adhesive or by some other suitable connecting mechanism. Where a carrier board with pre-formed receptacles is not utilized, the individual substrates in the array are pierced and replaced. The planar array is processed to simultaneously form a conductive circuit on each substrate consisting of metal deposited in its pattern of channels. The planar array of metallized substrates may then be stuffed with electronic components on an automatic insertion machine, wave soldered. The individual finished circuit boards are then pressed out.