Abstract: A point-to-point communications device (SS) which is capable of generating melodic alerts, each alert being generated using numeric data in a received message. The device includes a controller (36) programmed with an algorithm for dividing the digits in a decoded message into one or two digit fields. One digit fields are used respectively to determine the tempo (t) and the number of times (p) a sequence of notes is played and two digit fields are used to select notes.

Abstract: A point-to-point communications device (SS) which is capable of generating melodic alerts, each alert being generated using numeric data in a received message. The device includes a controller (36) programmed with an algorithm for dividing the digits in a decoded message into one or two digit fields. One digit fields are used respectively to determine the tempo (t) and the number of times (p) a sequence of notes is played and two digit fields are used to select notes.

Abstract: An apparatus for controllably charging and discharging individual battery cells or groups of battery cells in a string of batteries employed as a back-up power supply is provided. The apparatus comprises an isolation circuit for at least partially isolating the battery string from the load bus and primary supply; a switching network including at least two controlled switches arranged to selectively form circuits for discharging one or more cells; and a logic circuit for selecting which of the cells will be discharged. In certain disclosed embodiments, the logic circuit and switching network combine to apportion charging current to individual battery cells or groups of cells in accordance with their charging needs.

Abstract: The disclosure generally concerns a battery management system for a back-up battery for an uninterruptible primary DC source for telephone switching equipment or other loads. The battery management system includes variable isolation impedance means having high reverse impedance and variable forward impedance connected in series with the battery for effectively electrically isolating the battery from the system load bus without loss of battery back-up capability. Control means responsive to one or more predetermined system load bus and battery conditions and parameters adjusts the forward impedance of the impedance means between a relatively higher impedance level or levels effective to isolate said battery from the system load bus and a relatively lower forward impedance level or levels effective to connect the battery to the system load bus.

Abstract: A construction system for making latticework structures comprising connectors and rods. Each connector has a base portion with at least two side portions and opposing faces. A first attaching element is attached to a first side portion of the base portion. Second and third attaching elements are secured in axial alignment at spaced locations to a second side portion of the base portion. Respective connectors can be interconnected to each other by placing the first attaching element of one connector between the second and third axially aligned attaching elements of another connector and passing a rod through aligned receiving openings in each of the first, second and third attaching elements. Many of these connectors and rods may be assembled to form larger structures such as cubes, pyramids and other polyhedrons. The connectors themselves may take various shapes such as triangles, sectors and trapezoids.

Abstract: A construction system for making latticework structures comprising connectors and rods. Each connector has a base portion with at least two side portions and opposing faces. A first attaching element is attached to a first side portion of the base portion. Second and third attaching elements are secured in axial alignment at spaced locations to a second side portion of the base portion. Respective connectors can be interconnected to each other by placing the first attaching element of one connector between the second and third axially aligned attaching elements of another connector and passing a rod through aligned receiving openings in each of the first, second and third attaching elements. Many of these connectors and rods may be assembled to form larger structures such as cubes, pyramids and other polyhedrons. The connectors themselves may take various shapes such as triangles, sectors and trapezoids.

Abstract: The invention provides a method for applying labels to articles moved one by one past an application station. The labels are cut from a web which is fed through the machine, the web having adhesive applied to one side thereof which is pressure sensitive immediately before application to the articles. The machine includes cutting rollers which cuts through the adhesive side of the web in order to sever the labels therefrom, and the cutting edges of the cutting roller are kept clean by applying thereto liquid silicone or the like release composition. The liquid silicone is preferably applied by means of sleeves impregnated with the liquid silicone, such sleeves being rotatable on a spindle which is parallel to the axis of rotation of the cutting roller.The machine also has gearing coupling a device for feeding the web of materials to the cutting location. The cut labels are held by a vacuum drum before being applied to the articles and the gearing is also coupled to said vacuum drum.

Abstract: Apparatus for connecting portions of subsea flow conduits includes a stab member with a body and having a bore therethrough, one end of which exits from the stab body through a side port. A stab receptacle includes a bore for receiving the stab body, and a flow bore intersecting the receiving bore and leading to the exterior of the receptacle. The side port communciates with the receptacle flow bore when the stab member is landed in the receiving bore. Seals above and below the side port seal the receiving bore above and below the intersection of the receptacle flow bore and receiving bore. The cross-sectional areas of the seals exposed to internal fluid pressure are substantially equal, resulting in zero blow-apart force on the stab connection. Alternatively, the lower seal can have a larger exposed cross-sectional area than the upper seal, resulting in a net force tending to hold the connection teogether.

Abstract: An improved rotary expansion tool for reaming frustoconical undercuts in the walls of cylindrical holes is disclosed. The tool is comprised of an elongated sheath with a ram disposed in sliding engagement therein. The ram is provided with an enlarged head which is biased away from the open end of the sheath into which the ram is placed. A load bearing collar is disposed around the sheath intermediate the ends for governing the depth of insertion of the tool into a hole being undercut, and the longitudinal placement of the collar along the sheath can be varied in order to select the depth to which the tool is inserted into the hole. A stop ring is circumferentially disposed around the open end of the sheath to provide a stop for limiting the longitudinal progression of the ram into the sheath, and the longitudinal placement of the stop ring can be varied in order to selectively vary the distance the ram can be pushed into the sheath against the bias of the spring.

Abstract: An improved expansible rotary power tool for reaming frustoconical undercuts in cylindrical holes contained in dense concrete, such as flint and chert aggregates, comprises a tool having a hollow elongated sheath provided with a pair of opposing longitudinal slots adjacent to the cutting end of the tool. An upwardly biased tubular ram is reciprocally disposed within the sheath and is provided with a clevis at its cutting end which extends into the longitudinal slots, and a power engaging head at the end of the tool which projects out of hole being undercut. A load bearing collar mounted adjacent the power engaging end of the tool provides a stop against which the tool rests to determine the degree of advancement of the tool into the hole.

Abstract: A railway gondola car suitable for rotary unloading. The floor of the car comprises a pair of concave troughs which extend between the center sill and the sides of the car having their axes parallel to the axis of the center sill along that portion of the car between the trucks. The car has an increased lading capacity and lower center of gravity than conventional gondola cars.

Abstract: Oligomers of aromatic diols and brominated diphenyl compounds are described. They are useful in resin blends with thermoplastic polymers to impart flame-retardancy thereto without substantial resin degradation at molding temperatures.

Abstract: It has been found that selected oligomers and antimony oxide when employed with a polyamide and selected modified polyolefin resin blends results in a flame retardant resin that has better stability toward thermal degradation than when some other brominated flame retardants are employed with the blend.

Abstract: In the process for the catalytic alkylation of isobutane with an olefin to produce alkylate, the liquid reactor effluent stream comprising a hydrocarbon mixture of alkylate, isobutane and inert alkanes is used to provide cooling to the various condensers in the alkylation process.

Abstract: In the process for the catalytic alkylation of isobutane with an olefin to produce alkylate, the liquid reactor effluent stream comprising a hydrocarbon mixture of alkylate, isobutane and inert alkanes is partially vaporized by providing cooling to various condensers in the alkylation process. The vapors are then recovered, compressed and used to provide heat to various distillation columns found in the process.

Abstract: A system is described which provides for high density packaging of electronic equipment, particularly data processing systems. Subnanosecond integrated circuits of the LSI or MSI type in pluggable packages are adapted to be installed in receptacles or connectors. A cooling frame is provided which supports the package connectors as well as the package-to-package interconnection medium. In accordance with the system, groups of integrated circuit packages logically partitioned into functional elements and having, for example, gate complexities of the order of four thousand to ten thousand gates, comprise an island. The system may be expanded further by interconnecting several islands.