Abstract: A coating of a viscous lubricant applied prior to stretch-breaking permits forming slivers of stretch-broken carbon fibers. When an anti-static ingredient is added to the viscous lubricant cohesive slivers of stretch-broken glass fibers can be formed. Composites of matrix resin reinforced with these slivers exhibit high strength, tensile stiffness, and good formability.

Abstract: A method of fracture acidizing whereby fluid is initially injected at a high rate and pressure, sufficient to create a fracture of desired dimensions in a formation, subsequently injected at a lower rate and pressure, sufficient to approximately maintain equilibrium with any fluid that leaks off from the fracture created and such that the fracture remains open without further extension, and finally contacting the fracture with acid to etch flow channels in the formation.

Abstract: A padlock-type security seal including a U-shaped shackle, a pair of reversely bent end portions, and a transparent body portion having a pair of chambers for receiving the bent end portions. The chambers each have a locking groove therein for receiving the bent end portions. A frangible tab is mounted adjacent one of the locking grooves. Attempts to pick the seal by deforming the shackle will result in breaking the tab. The tab, after breaking, will protrude into the chamber where it can be viewed through the transparent body to indicated tampering.

Abstract: A shaped article of a polyurethane-urea spandex having a specific polycarbonate soft segments provides improved resistance to chlorine and mildew. The soft segment is derived from poly(pentane-1,5-carbonate)diol, poly(hexane-1,6-carbonate)diol, copolymers thereof, or mixtures thereof.

Abstract: A vapor phase process is disclosed for the selective disproportionation of fluorodichloromethane to difluorochloromethane and chloroform using a solid catalyst of an activated mixture of iron oxide and rare earth oxides.

Abstract: A header device for receiving an IC card or pack, comprises a housing, which includes an IC-pack holder having an opening through which the IC pack is inserted into and removed from the housing, and a pair of first levers projecting into the IC-pack holder so as to abut an end portion of the IC pack, and a pair of second levers located outside the holder. The first and second levers are coupled to each other at their respective proximal ends, so that they are immovable relative to each other. The coupled levers are rotatably mounted on the housing. If the IC pack is inserted into the housing through the opening, the end portion of the IC pack pushes the respective first levers, thereby rotating both the first and second levers in a first rotation direction. Then, if the second levers are rotated in a second rotation direction reverse to the first rotation direction, the first levers push the IC pack out of the housing.

Abstract: Segmented spinning capillaries for post-coalescent spinning provide the capability to spin round cross-section filaments with round continuous voids along the length of the filaments by adding an inner arcuate slot at the base of each spoke of each slot segment.

Abstract: A method of manufacturing dichroic antenna structures, which makes use of a projector mounted on the mobile arm of a computer-controlled machine to project the shape of selective antenna elements on the surface of an insulating layer, clad with a metallic layer covered in turn with a photographic emulsion. Development and chemical etching of the excess conductive parts are then carried out.

Abstract: A circuit for automatically controlling the gain-bandwidth product of operation amplifiers, where gain-bandwidth product (G*B) of one of the amplifiers placed on the same chip as the amplifiers to be controlled is measured and the resulting signal is used to control through a bias circuit the gain-bandwidth products of all the amplifiers, the value of these products being presettable through the frequency of a control signal sent to the circuit input. The reference amplifier is highly compensated for and placed in the configuration of voltage follower.

Abstract: An anaerobic, pasteurizing conditioning system for treating matter such as whole and ground grain, minerals and other ingredients to increase the rate of their conversion and absorption during digestion and thus the nutritional value thereof. The system comprises a direct fired steam generator adapted for producing an effluent stream comprising steam and non-condensible gases, a vapor homogenizer for producing a substantially water-free treatment fluid from the effluent stream, and the treatment fluid containing insufficient oxygen for aerobic bacterial life. The treatment fluid, comprising steam and oxygen deficient non-condensible gases is discharged into the vessel for counter-current flow relative to grain passing therethrough.

Abstract: This invention relates to an improved process for preparing highly pure cyclic esters by heating a polymer of the corresponding .alpha.-hydroxy acid or its ester or a copolymer of .alpha.-hydroxy acid or its ester and a thermally stable polyether in the presence of an inert gas at atmospheric pressure. The cyclic ester is carried from the reaction with the inert gas to a solvent system.

Abstract: This invention comprises a focused light attachment for use with a portable power-driven hand saw, particularly a saber saw. The invention comprises a light source such as an electric lamp with a suitable electrical power source and a focusing mechanism for projecting a very narrow beam of light. The light source and focusing mechanism is mounted on the front of the hand saw and is positioned to project its narrow light beam a substantial distance in front of the saw blade so that it can be used to trace or follow a previously scribed saw line. The tracing light can be used in combination with a flood light that is mounted also on the front of the saw housing and positioned to flood the area surrounding the saw blade with illumination. Most preferably, the tracing light and its focusing mechanism are mounted permanently within the housing of a saber saw.

Abstract: 1,4-Bis(4-phenoxybenzoyl)benzene is made in a heterogeneous system by a reaction of diphenyl ether with 1,4-benzenedicarbonyl chloride at 190.degree.-250.degree. C. in the presence of a zeolite catalyst having a ring structure containing 12 oxygen atoms, which can be either an activated zeolite in hydrogen form or an iron-exchanged zeolite, which zeolite can be readily separated from the hot liquid phase in the reaction mixture. The mole ratio of diphenyl ether to 1,4-dicarbonyl chloride, when the catalyst is in hydrogen form, is about 50-80:1; when the catalyst is in iron-exhcanged form, it is about 10-50:1, and the weight ratio of 1,4-benzenedicarbonyl chloride to zeolite in hydrogen form is 3:1 to 1:2, while the ratio of 1,4-benzenedicarbonyl chloride to zeolite in iron-exchanged form is 10:1 to 1:32. The product readily crystallizes in a high state of purity from the cooled solution. 1,4-Bis(4-phenoxybenzoyl)benzene is a vaulable intermediate in the synthesis of polyetherketone resins.

Abstract: A three part ostomy coupling has a first part having a flange, a central chute and an array of space projections. A second part has a peripheral seal for engaging and surrounding the outer wall of the chute an outwardly projecting rim which can be snap fitted on the space projection. A third part is rotatable to effect a positive lock between the rim the projections, for example by deforming the projections inwardly.

Abstract: A device for enriching a fluid with ozone includes an inner tubular member arranged within an outer tubular member and defining a separate flow path for a fluid within the inner tubular member and another one for a fluid between the inner and outer tubular members. An electrode which has a high voltage regulation and a coil portion which extends through the inner tubular member forms a grounding electrode. A fluid such as air which is to be enriched with ozone is passed either through the inner tubular member or the space between the two tubular members and a cooling fluid is passed in the other tubular member. The inner tubular member is made of an ultraviolet penetrable and heat resistant material such as quartz glass.

Abstract: Compositions containing a phase having the formula LA.sub.2-x Na.sub.x CuOz wherein x is about 0.1 to about 0.3 and z is about 3.8 to about 4.2 are superconducting. Processes for manufacturing such compositions and for using them are disclosed.

Abstract: A tube adapter for a centrifuge rotor is characterized by generally circumferentially extending latching surfaces which are engageable by the claws of a removal tool to extract the adapter from the recess of a rotor. The latching surfaces may be defined by a continuous groove or by a pair of groove segments formed on the body of the adapter.

Abstract: A pin mounted support system for printed circuit cards and connectors includes a base portion having one or more bores for mounting upon the pins of the header and a guide surface portion that delimits the installed position of the printed circuit card or connector. Where the support is intended for use with a printed circuit board, the support includes a groove or track for accepting and supporting a lateral edge of the printed circuit board. Where the support is intended for use with a connector terminated cable, a keytab is provided with one or more bores for mating with the pins of the header to delimit the proper position of the connector. The connector is positioned between the keytabs and installed in its mated position. The supports are typically fabricated from a molded plastic and are easily removable from their support pins to allow convenient reconfiguring of the header.

Abstract: A system for detecting the radiant energy emitted from different closely spaced species includes two detectors each having a large entrance angle for receiving the radiant energy, and wavelength selective filters between the detector and species, the transmission vs. wavelength characteristics being complementary, and means for ratioing functions of the detector outputs, the ratio being indicative of the identity of the species.

Abstract: An improved process is provided for the manufacture of polyester or alkyd resin materials via the reaction of a polybasic acid or anhydride component with a polyol component containing at least a minor proportion of an alkyl, alkenyl or aryl glycoside or polyglycoside material. In the improved process, the reaction temperature is maintained below about 185.degree. C. until the reaction has reached at least about 50 percent of completion. In an especially preferred embodiment, the polyester or alkyd resin to be produced is an aromatic polybasic acid or anhydride-based, glycoside-containing material and the improved process of the invention further comprises substituting an aliphatic polybasic acid or anhydride material for a minor proportion of the aromatic polybasic acid or anhydride component thereof. The improved process of the present invention provides alkyl, alkenyl or aryl glycoside-containing polyester or alkyd resins having substantially better color (i.e.