Abstract: Improved process for the preparation of 1,1,1,2-tetrafluoroethane by the steps of chlorofluorination of selected organic compounds using Cl.sub.2 and HF followed by hydrogenolysis of the resulting products, the improvement residing in the use of excess HF and recycle of the unreacted compounds and byproducts to the chlorofluorination step.

Abstract: An electrical energy source is created by the combination of a light emitting polymer material having at least one light emitting surface emitting light energy of a specified frequency bandwidth and a photovoltaic cell having a light collecting surface and a pair of electrical contacts. The light collecting surface of the photovoltaic cell is optically coupled with the light emitting surface of the light emitting polymer material. An open-circuit voltage is generated between the pair of electrical contacts as a result of the absorption of emitted light energy from the light emitting polymer material by the photovoltaic cell. In the preferred embodiment, the light emitting polymer is a tritiated organic polymer to which at least one organic phosphor or scintillant is bonded.

Abstract: A fowl feeder has a plurality of sleeve members mounted on a central tubular body member hanging vertically from a feed conveyor tube. An upper sleeve member supports a spider ring member which supports a suspended plate member. The plate member is capable, upon rotation about the central tubular body member, of exposing a plurality of lateral apertures in the central tubular body member to dispense feed therethrough. A lower sleeve member is vertically movable on the centrals tubular body member relative to the suspended plate member to regulate dispensing of feed through the bottom of the central tubular body member. A pivotal pawl is attached to the lower sleeve member to control positioning of the plate member relative to the lower end of the central tubular body member.

Abstract: The characteristic parameters of a semiconductor laser (1) acting as an amplifier and brought to bistable operating conditions are determined. The output power (I2) of laser (1) is measured as a function of the power (I1) of an amplitude-modulated optical input signal to determine the laser hysteresis loop; the switching points (P1, P2) between the two stable states of the laser (1) are identified, the input and output power values relevant to such points are memorized, and at least the value of the non-linear refractive index coefficient (n.sub.2) of the material used to fabricate the laser (1) as determined starting from the power values relevant to at least one of said points (P1, P2). By exploiting the power values relevant to both switching points (P1, P2) also the amplification factor (A), the finesse parameter (F) of the passive cavity of the laser (1) and the wavelength difference (.lambda.1-.lambda.

Abstract: Tris(isonitrile)copper(I) complex salts with anions selected from BF.sub.4, PF.sub.6, ClO.sub.4, I, Br, Cl and CF.sub.3 COO are useful in preparing radionuclide complexes rapidly at room temperature. Preferred isonitrile ligands are ether isonitriles. The tris(isonitrile)copper(I) adducts enable technetium complexes, such as those of Tc99m, to be prepared easily just prior to their use as imaging agents.

Abstract: (Aminosulfonyl)pyridine carboxamides are useful as agricultural chemicals. In particular, many compounds are useful as herbicides which show significant herbicidal activity on grasses and yet have the unexpected property of being safe to corn.

Abstract: A brace for a human joint. The brace includes a top clamp and a bottom clamp removably mountable to the limbs on the opposite sides of the joint and secured thereto by a pair of belts. A plurality of adjacent strips have top ends fixedly mounted to the top clamp and bottom ends slidably mounted to the bottom clamp. The bottom clamp includes a pin fixedly mounted thereto which extends through a slot in the strips facilitating slidable motion for the strips relative to each other and with respect to the bottom clamp. An elastic housing encloses the top clamp, bottom clamp and a portion of the strips urging the bottom clamp towards the top clamps, but yieldable to allow further separation.

Abstract: An improved fishing lure has a multi-strand skirt of flexible, coalesced multi-filament strands formed of clear spandex or clear thermoplastic elastomer. Each strand is colored or colorless and has a large void fraction and high glitter.

Abstract: Chiral 2,5-disubstituted phospholanes useful as transition metal ligands in asymmetric catalysis and processes for their preparation are disclosed.

Abstract: A hydrobrush of the type incorporating a small Pelton turbine actuated by a water jet at the pressure of the water main and which causes the rotation of a brush. The impeller (4) of said turbine is provided with a co-axial small toothed wheel (504) which is in mesh with two or more toothed wheels or satellites (5) of larger diameter, which in turn are in mesh with a crown gear (303) which surrounds them and is secured to the body (3) of said hydrobrush.

Abstract: A weft inserter rapier for shuttleless weaving looms in which the weft clamping and retaining system comprises an elastic clamping foot the cross-section of which has a reverse-"U"-shape which is urged, due to the action of a spring-loaded lever, against two metal blades resting on two supports made from an elastomeric material. The metal blades may be provided with an upwards-protruding step at their adjacent ends inside said clamping foot, and the clamping foot can be linked by a semispherical articulated joint to a spring-loaded lever.

Abstract: Photohardenable electrostatic master with improved environmental latitude comprising(1) an electrically conductive substrate, and(2) a layer of photohardenable composition consisting essentially of(a) at least two organic polymeric binder, at least one having a Tg greater than 80.degree. C. and at least one having a Tg less than 70.degree. C.,(b) at least one monomeric compound having at least one ethylenically unsaturated group, and(c) a photoinitiator or photoinitiator system, the shift in transit time (a.sub.T) of the photohardenable layer in the range of 30%.ltoreq.relative humidity.ltoreq.60% and 15.6.degree. C..ltoreq.temperature.ltoreq.26.7.degree. C. is 15 or less, preferably 10 or less. A xeroprinting process is described using the master. The master is used in graphic arts, color proofing which duplicates images produced by printing, preparation of printed circuit boards, resists, soldermasks, etc.

Abstract: A method for fabricating multilayer circuits comprising patterned conductive layers separated by dielectric layers and connected by vias in the dielectric, wherein the unfired dielectric layers are laminated as tapes or sheets over either a fired or unfired conductor layer while under a vacuum.

Abstract: A solid imaging method utilizing photoformable compositions comprising thermally coalescible materials for producing multilayer models and prototypes having improved structural properties and resolution.

Abstract: Articles made from amorphous dipolymers of perfluoro-2,2-dimethyl-1,3-dioxole with tetrafluoroethylene having high glass transition temperatures of 140.degree. C. or higher, low indices of refraction, and good physical properties, and low dielectric constants, include, among others, substrates for circuit boards, composites, sheets and films, optical lenses, and electronic current carrying devices.

Abstract: An elongated object in need of tapering at an end thereof is secured by holder means which comprises a ball bearing that rotates the elongated object and the holder means together by means of contact with a rotating grooved ring disposed upon a rotating polishing surface, wherein the rotating ring and the holder means are restrained from translational motion by a guiding means.

Abstract: Arylthioalkylphenylcarboxylic acids are provided which have the structure ##STR1## wherein Ar represents an aryl group including phenyl or naphthyl which may or may not include one or more substituents, X is COOR where R is hydrogen, alkali metal, or lower alkyl, or X is 5-tetrazolyl or ##STR2## where R.sup.1 is lower alkyl or aryl, p is 1 to 5, and m is 1 to 4. These compounds are cardiovascular agents which exhibit thromboxane antagonist activity and thus are useful in the treatment of thrombotic and vasopastic diseases.

Abstract: Apparatus for wrapping web material about an elongated object, particularly one which is asymmetrical to a rotational axis thereof, includes a frame, a cylindrical support member mounted in the frame and an annular resilient sleeve loosely surrounding the support member longitudinally thereof. The object is mounted so that it creates a nip with the sleeve and the web material is fed into the nip. The object is rotated on its rotation axis to draw the web material through the nip and to wrap the material on the object. As the object rotates the sleeve will also rotate on the support member and it will deform radially to conform to the object as material is wrapped thereon. The deformation and almost instant changes in angular velocity of the sleeve reduces tension variations in the web material and result in a uniform covering of the object as it is wrapped.

Abstract: Anaphylatoxin adsorbing perfluorinated tetrafluoroethylene copolymer containing acid or selected acid derivative functionality, and process and means for the use thereof.