Abstract: A machine for assembling washers on headed screw blanks, comprises a turntable having peripheral recesses into which the washers are inserted. Elevators in the form of vertically swinging arms are mounted on the turntable about the periphery thereof, extending generally radially of the turntable, and are cam controlled to swing vertically relative to the turntable. In their upwardly swung position, recesses in the outer ends of the arms receive screw blanks beneath the heads thereof, the arms then swinging downwardly to insert the screw blanks in the washers that are in alignment below the screw blanks on the turntable. At the discharge side of the turntable, a slideway is provided for complete assemblies; but incomplete assemblies are detected and are disassembled with the parts returned to storage.

Abstract: A process for preparing acrylonitrile polymer plexifilamentary strands comprises dispersing in water 25 to 45% by weight of an acrylic polymer containing at least 91% by weight acrylonitrile units and up to 9% by weight of one or more copolymeric units and having an intrinsic viscosity of 0.6 to 2.0, 7 to 23 .mu.eq./g. enolizable groups after mild acid treatment, 15 to 70 .mu.eq./g. thioether ends derived from a water insoluble mercaptan and less than 3 .mu.eq./g. oxidizable hydrolysis fragments, heating the dispersion to a temperature of 200.degree. to 300.degree. C. while maintaining the dispersion under sufficient pressure to maintain the water in the liquid state, the time of heating not exceeding about 30 minutes, and promptly flash-extruding the dispersion through an orifice into a region of substantially lower temperature and pressure to form a continuous strand of filbrillated plexifilaments.

Abstract: An Additive for solvent or water based coating compositions which controls the sag of finishes of such compositions; wherein the additive comprises(a) a finely divided silica,(b) a polyfunctional acid or an acid anhydride and(c) an amine.High polymer solids water or solvent based coating compositions containing such an additive are useful for coating metal substrates such as those used in appliances, automobiles and trucks.

Abstract: Toy mother and baby animal figures which simulate the giving of birth to the baby animal. The mother animal figure includes a hollow body having an interior chamber with an exit opening. An openable door is provided over the exit opening. The toy baby figure which is representative of an offspring of the mother animal is disposed within the chamber. The baby figure is capable of being collapsed, as by having multisection foldable legs which fold up against its body, so it will fit within the chamber. A conveyor mechanism is included within the mother animal figure and is manually actuable by the user to move the baby figure toward the exit opening while also opening the door so that the baby figure may be pushed out through the exit opening and thus be "born". After it is born, the baby figure may be expanded as by having its legs unfolded and it may be self-standing. The chamber may also be openable to permit replacing the baby figure.

Abstract: In a vehicle locating apparatus that utilizes Hall effect generators to determine the magnetic heading of the vehicle there is provided magnetic compensation by the placing of a coil around the Hall generators. A current source generator provides power to the coil of such magnitude so as to create a magnetic field which cancels the spurious local magnetic field components. The apparatus also includes a set of manual switches to program a constant number into the system. The system incorporates this number to compensate for variable wheel diameters and to allow the selection of variable map scale units. This number is utilized by the system in a division technique that repeatedly substracts the number or adds the number to the accumulated distance traveled by the vehicle. The location of the vehicle is updated as the vehicle passes a transmitting signpost. Data transmitted to and from the vehicles locating apparatus is in a self-clocking format that reduces oscillator accuracy requirements.

Abstract: Magnesium compounds, such as magnesium oxide or hydroxide, at least partially reacted with fluoropolymer containing carboxyl ions, carboxylic acid or carbonyl fluoride functional groups provide compositions which are useful as modifiers for asbestos diaphragms for chlor-alkali cells to reduce the voltage and increase the efficiency of such cells.

Abstract: A method of forming a shaped article from non-melt fabricatable, high temperature, polymeric (polyimide and polyamide) resins, using an apparatus including a die with compaction, back pressure and relief zone. Such resins are ram-extruded at a temperature of between about 20.degree. C. and 400.degree. C., but below the second order glass transition temperature of the resin to form a shaped article, followed by heating at a temperature above about 250.degree. C. for a time sufficient to coalesce the resin. Such method and apparatus is particularly well-suited to produce close tolerance articles of precise dimensions, such as rods and tubes.

Abstract: This invention relates to novel o-carbonylbenzenesulfonyl isocyanates and their use as intermediates for the preparation of sulfonylureas which are known to be active herbicides.

Abstract: Image reproduction process using a photohardenable element for the production of negative tonable images comprising (1) support, (2) intermediate layer containing at least one thermoplastic binder, (3) photohardenable layer containing addition polymerizable monomeric compound or photocrosslinkable compound, (4) tonable layer comprising a polymeric binder and a non-volatile diffusible component, e.g., a plasticizer for the binder and (5) optionally removable cover sheet. The element is used for image reproduction, e.g., colored prints.

Abstract: A phase lock loop (10) includes a frequency and phase preset network for presetting a local oscillator (20) in substantial synchronism with a carrier signal. The preset network utilizes time delayed output signals from split or double correlators (32, 34, 36, 38) to determine a change in the phase angle between the local oscillator signal and the carrier signal for a known time period to determine the frequency of the local oscillator signal relative to the carrier signal frequency. The preset network determines the phase of the local oscillator signal relative to the carrier signal phase utilizing the summed output of one split correlator (32 and 34) and of another split correlator (36 and 38).

Abstract: A continuous process for extracting magnesium from compounds containing magnesium oxides is disclosed. In the past such processes have been batch type processes with oxides placed in a crucible of a furnace. The process comprises the steps of mixing magnesium oxide and an alkaline earth metal oxide with a reducing agent, compressing the mixture into briquettes, feeding the briquettes onto a conveying means, heating the briquettes uniformally on the conveying means under controlled pressure to vaporize the magnesium, and condensing the vaporized magnesium on a cooled surface.

Abstract: Acrylonitrile polymers containing at least 91% by weight acrylonitrile are spun from solutions having a polymer concentration of 38 to 75% by weight. Useful polymers have an intrinsic viscosity of 0.6 to 2.0, most preferably 0.9 to 1.1, 7 to 23 .mu.eq./g. enolizable groups after mild acid treatment, 15 to 70 .mu.eq./g. thioether ends derived from a water insoluble mercaptan and less than 3 .mu.eq./g. oxidizable hydrolysis fragments.

Abstract: A process is disclosed for transversely stretching amorphous polyethylene terephthalate film wherein the temperature is adjusted to be substantially uniform across the web before stretching, heat is removed during stretching, and after stretching, the temperature is 1 to 15C..degree. lower and is uniform across the web.

Abstract: The melt spinning of acrylonitrile polymer hydrates is improved when the polymer used contains at least 91% by weight acrylonitrile units and up to 9% by weight of one or more copolymeric units and has an intrinsic viscosity of 0.6-2, 7-23 .mu. eq./g. enolizable groups after mild acid treatment, 15-70 .mu. eq./g. thioether ends derived from a water insoluble mercaptan and less than 3 .mu. eq./g. oxidizable hydrolysis fragments.

Abstract: The curing temperature of an otherwise substantially conventional methacrylate coating composition is lowered and the weather resistance of the cured composition is improved by incorporating therein a phosphated and amine-neutralized epoxy resin.

Abstract: An electrical generator comprises a stationary permanent magnet for establishing a magnetic field, one or more sensing coils responsive to the magnetic field, and a diamagnetic blocking element movable between the magnet and the sensing coils for periodically interrupting the magnetic field to produce electrical energy in the coils. A preferred embodiment includes a pair of semi-circular coils arranged side-by-side in the magnetic field and a rotatable blocking disc interposed between the magnet and the coils. The disc includes a semi-circular portion of superconductive material rendered impermeable to the magnetic field at temeperatures near absolute zero and a semi-circular portion of magnetically inert material to alternately block and pass the magnetic field to the coils upon rotation of the disc.This is a continuation, of application Ser. No. 566,090, filed Apr. 8, 1975 now abandoned.

Abstract: Compounds of the formula ##STR1## wherein R is hydrogen, sodium, potassium, or certain ester groups; R.sub.1 is in the .alpha.-configuration and is hydrogen or methoxy; R.sub.2 and R.sub.3 are independently selected from methyl, ethyl, i-propyl, and n-propyl; R.sub.4 is hydrogen, sodium, potassium or certain ester groups, and X is hydrogen, ##STR2## R.sub.6 is hydrogen or lower alkyl; R.sub.7 is hydrogen, lower alkyl, ##STR3## or --(CH.sub.2).sub.n -N-(lower alkyl).sub.2 ; R.sub.8 is hydrogen, sodium or potassium; n is an integer from 1 to 4; are disclosed. These compounds are useful as antibacterial agents.

Abstract: A respiration system is provided which is useful to protect a wearer thereof in potentially hazardous atmospheres which are not immediately dangerous to life or health. The respiration system comprises a flexible cape member having an aperture defining a neck engaging collar through which a wearer's head is passed. A ring structure surrounds the aperture and is attached to the cape member to form and hold an inner portion of the cape member in a ruff configuration which extends radially outwardly from the aperture to the ring structure. A conduit passes through a first orifice in the cape member, within the inner portion thereof, for release of respiratory air above an upper surface of the ruff configuration. A head enclosure is sealing affixed to the cape member and surrounds the ruff configuration.

Abstract: A touch-operated switch for electrical apparatus which includes a power connection to the apparatus, a serially connected power socket in the connection provided with a pair of terminal jacks each in the form of make-before-break electrical contacts, a plug-in module containing an electronic circuitry including a solid state power switch, two terminal means on the module for plugging into said terminal jacks, one of said terminal means comprising a pair of electrically discrete pins engaging with respective ones of the electrical contacts of one of said terminal jacks to make electrical connection therewith while opening said contacts, said pins being connected across said power switch, an energizing circuit for the electronic circuitry connected between both said terminal means, and a touch-sensitive control circuit in said electronic circuitry for controlling the operation of said power switch.

Abstract: New substituted derivatives of thiazolidine-, thiazane- and related carboxylic acids which have the general formula ##STR1## are useful as angiostensin converting enzyme inhibitors.