Abstract: This improved gland assembly is primarily for use with mineral insulated cables. The same gland body and lock nut is used for cables regardless of the cable diameter. The dimensions of the compression ring are the same, except for the ring bore, which matches the diameter of the cable. The lock nut bottoms on a shoulder to prevent overtightening of the nut and risk of fracturing the sheath of the cable.

Abstract: This invention is an improved connection for splicing or terminating coaxial cables. The connection of this invention maintains substantially the same ratio of outer conductor inside diameter to inner conductor outside diameter as in the rest of the cable, and thus avoids impairment of signals transmitted by the coaxial cable. The splices prevent moisture from entering the cable when used underground; and the splices are strong enough to permit the cable to be plowed in with no fear of splice hang-up in the plow guides.

Abstract: This safety device has a delivery outlet and a pressure-relief valve for venting gas from a source of gas when the gas pressure rises above a predetermined maximum. A delivery line supplies gas from the source to a place of use, and there is a delivery line shut-off valve which shuts off flow to the place of use whenever the relief valve opens by a substantial distance from its seat. This prevents piping and hoses communicating with the delivery line from being subjected to excess pressure in the event that pressure rises faster than the relief valve can vent the excess pressure.

Abstract: This invention is an improved apparatus and method for making fiber optic communication cables by cutting accurate helical grooves in a layer of insulation surrounding the surface of a strength member, and inserting the fiberglass conductors into the grooves with fillers and spacers around and between the glass conductors to protect them from damage. Helically wrapped binders and heat barrier tapes may be wrapped over the assembly with any additional binder threads or tapes as may be necessary to hold the heat barrier in place.

Abstract: This package has a main panel with a plurality of sockets formed by displacing material of the panel in a direction to form sockets with closed ends within the package and the sockets opening through the bottom of the package. A thin and easily tearable film is adhered to the bottom of the package in position to close the lower ends of the sockets so that products do not fall out. The sockets can be collapsed by finger pressure against the upper ends of the sockets, and a pill pushed from a collapsed socket tears the film as it is pushed out. The package is made child-proof by adhering a strong film over the bottom of the thin film, and this strong tough film can be peeled off when a pill is to be removed from the package by an adult. A cover hinges over one end of the main panel and covers the closed ends of the sockets.

Abstract: Communication cables with cores that have groups of conductor pairs, that carry messages in opposite directions, in the same cable present the problem of crosstalk between the different groups. With the increase in carrier frequency that is used for communication, the crosstalk problem increases, and cables that were acceptable for lower frequency are no longer adequate. This invention provides more efficient shielding; is suitable for higher frequencies; provides a stronger cable structure; and reduces corrosion of the shielding.

Abstract: In some critical use, air-drying systems, 100% back-up capability is desired. The problem has been that an idle standby unit requires considerable time to reach full capability for dry air delivery. This invention bleeds enough dry air from the operating primary unit through parts of the idle back-up unit to maintain any dynamic conditions that are necessary to keep the standby unit ready for immediate use in the event of a failure of the primary unit.

Abstract: This invention provides a method and aparatus for welding together paper sheets, more especially for, but not limited to, bookbinding. The sheets are held in a desired relation with one another, and the portions to be connected are held together while subject to ultrasonic vibration which fuses ingredients of the paper so as to weld the fused areas together. A folded sheet can be welded across a midportion thereof and then folded along the weld or parallel to the weld to make a signature for a book; or stacked sheets can be bound together along their rearward edge portions by the ultrasonic vibrations.

Abstract: This invention is a fibre optic communication cable in which the signals are transmitted by light. The glass fibres used for the cable are protected from breaking strain and from excessively sharp bends by supporting helically wound optic fibres on the inside of a tension element with provision by which the diameters of the helical convolutions can become smaller to increase the axial length component of the optic fibres when the a axial length of the tube is increased by forces that strain the tube. Several ways of maintaining the helically wrapped optic fibres supported from the tube so as to permit decrease in the diameter of the helix are described and illustrated.

Abstract: This cable for high-voltage, alternating current power transmission cables not only reduces the access of moisture into the cable but reduces access of moisture to the inner face of the insulation to such an extent as to make the cable highly resistant to the formation of electrochemical trees in the solid extruded insulation of the cable. A compressible layer of closed cell, foamed plastic is extruded over the outside surface of the insulation; and a metallic shield fits tightly around the compressible layer, the metallic shield being a longitudinally folded tape with a lap seam which is preferably bonded to prevent ingress of air or other fluid into the cable. If the conductor is stranded, sealant is used to prevent ingress of moisture, or of air, and the humidity it contains into the cable at cable ends.

Abstract: The application of low loss optical fibers in optical communication systems requires that the glass fibers are suitably packaged into a cable. This invention provides a system of multiple optical fibers between two tapes or films, one of which holds the fibers on the film by pressure-sensitive adhesive and in spaced relation to one another. The fibers are covered by a second film, preferably thinner than the first film, and secured to the first film along the edges of the films to provide a laminated structure suitable for cabling. Spacers between the films eliminate asymmetric pressure of the covering film against the optical fibers which are nearest to the edges of the films; and the spacers are preferably strength members for stiffening the laminate.

Abstract: This specification describes a novel apparatus and method for testing optical wave guides to determine the optical attenuation and to locate faults in the optical fiber. The light for test purposes is launched into the fiber by one or more light beams that surround the wave guides and that are focussed to converge from around the circumference and at the axis of the wave guide; the convergence being at low angles of incidence, so that some of the light enters the wave guide. The remaining light launched into the wave guide in opposite directions at a location, nearer to one end than to the other, is measured at opposite ends of the wave guide. The ratio of the light at the opposite ends of the wave guide and the difference in the length of travel of the light from the region of entry to each end is used to compute attenuation. Faults are found by internal reflections of the light beam in the wave guide.

Abstract: High-voltage power cables with extruded dielectric plastic insulation, installed underground, have their life shortened by the formation of electrochemical trees in the insulation. This invention provides a high-voltage power transmission cable constructed with sealant in interstices of a stranded conductor that are not filled by the semi-conducting material of a conductor shield of the cable. The construction prevents or greatly delays the formation of electrochemical trees in the insulation of the cable. The sealant prevents entrance of air into the cable at cable ends, and the passage of the humidity of the air through the conductor shield to an interface between the conductor shield and the inside surface of insulation that surrounds the conductor shield.

Abstract: This strap goes over the shoulders of the person wearing it and supports one or more cameras hanging down in front of the body of the wearer. Portions of the strap that extend downward behind the shoulders converge toward one another and are connected with a stretchable or elastic part of the strap which has its lower end anchored to a trouser band or belt, and which prevents the converging parts of the strap from moving upward into contact with the back of the neck of the person wearing the strap. Thus the weight of the cameras never bears against the neck. The stretchable part of the back portion of the strap yields when the wearer bends forward, and this prevents uncomfortable tightening of the strap.

Abstract: Plastic blown ware is made by expanding a molten plastic tubular blank into contact with the wall of a mold cavity. This invention evacuates air from the part of the cavity around the outside of the blank to increase the pressure differential across the tube wall during the blowing period and to help prevent the plastic from pulling away from the cavity wall during cooling and shrinkage. The invention makes blown ware by compounding the plastic with a blowing agent and by controlling the bubble size and wall thickness by changing the pressure on opposite sides of the blown article to whatever pressure will permit the gas bubbles and the plastic to expand to the desired size during cooling and setting of the plastic.

Abstract: This invention obtains samples of fish life in the larvae and egg stage and shortly thereafter, plankton and similar marine life. By taking samples before and after water has passed through cooling facilities of electric generating plants along a river, some of the effects of the power plant on the environment can be determined. The outstanding feature of this invention is that it collects the samples without passing the marine life through pumps in which much of it is killed or injured. Samples are collected in partially submerged equipment into which the water flows by gravity, and the water is discharged by pumps after the samples have been removed.

Abstract: Beverage containers are commonly made with a ring at the top of the can for pulling a knock-out from the can top to provide a discharge opening through which a person can conveniently drink the contents of the can, or pour them into a glass or cup. The can top gathers dust and other contaminants that are a health hazard. This invention locates the discharge outlet at the bottom of the can and in a recessed compartment, and prevents contamination by closing off access to the can bottom by a shelf or other surface on which the can rests, so that the can itself acts as a shield to protect the discharge outlet area from contaminants.

Abstract: Multi-cavity molds, such as used for injection blow-molding apparatus, have manifolds through which molten plastic is supplied from a plasticizer to the individual mold cavities. Some plastic molding materials, referred to as "heat-sensitive," deteriorate if they remain in the manifold for any substantial length of time. This manifold is constructed with its cross-section and branch passages correlated in such a way that there is no space in the manifold where plastic can accumulate out of the stream of feeding plastic. By keeping the plastic moving, in all parts of the manifold during each injection operation, deterioration of heat-sensitive plastic in the manifold is avoided.

Abstract: The induction coil of this invention is wrapped on a non-metallic core with convolutions of the coil adjacent to one another. An adhesive tape is applied over the convolutions with a lapped seam of the tape and with the tape preferably extending beyond both ends of the coil in order to hold the convolutions of coil against moving with respect to one another while the coil is being transported from the winding step to the next operation in which a jacket is molded over the coil in a cavity of an injection molding machine.

Abstract: This apparatus is for evaluation installed cable systems, including those that are already in use. The apparatus measures dissipation factor, partial discharge (corona) and insulation resistance of the cable system; all of these being necessary to determine the condition of the cables. This invention is unique, in that it can be used with installed cable systems that have their metallic shielding grounded; and the apparatus can be mounted on a truck or trailer for movement to any place where an installed system is to be evaluated.