Abstract: A filter particularly for use with industrial waters includes a substantially cylindrical filter housing an inlet pipe inclined on its axis and an axial outlet pipe. A fixed strainer is arranged in the filter housing and communicates with the outlet pipe. Inside the strainer is a substantially conical deflector having a nose which is directed towards the outlet pipe. At least one fin, and, in practice, at least one longer fin and at least one shorter fin extends radially between the deflector and the strainer.

Abstract: A method of manufacture of novel light-weight pistons of aluminum forgings with an integral iron insert ring by fusion welding is described. The aluminum piston forging is provided with a configuration adapted to receive the iron insert ring which may be coated to provide an inter-metallic joining alloy. The configured piston forging is placed in a mold, the ring is positioned in the configuration. The mold is rotated and molten alloy is introduced at an angle to deoxidize the forging and the ring, sweep the oxides to non-critical areas of the mold and to join the forging to the ring upon cooling to form a fusion weld.

Abstract: A rotary knife holder which is used in a transverse cutter for running paper webs or the like has a tubular carrier with an axial bore for a dynamic damping system serving to damp the natural frequency oscillations of the carrier. The damping system has a cylindrical mass whose end portions are surrounded by elastic annuli installed in a sleeve which is fixedly installed in the axial bore of the carrier. The natural frequency of the damping system is attuned to the natural frequency of the carrier. If the carrier is journalled at both ends, the damping system is installed midway between the ends of the carrier.

Abstract: A system for measuring and storing the amplitudes plus duration and/or rise times of overvoltage pulses occurring on a transmission line comprises a voltage divider working into a first and a second comparator respectively detecting an abnormal voltage exceeding a predetermined sensitivity threshold and discriminating among different amplitude levels above that threshold. The first comparator triggers an oscillator driving a pulse counter which measures the duration of an overvoltage pulse and also provides quantized information on rise time to the highest amplitude threshold surpassed by that pulse as determined by the second comparator. This information is stored in a memory with two groups of cells respectively assigned to combinations of amplitude with duration and combinations of amplitude with rise time, the occurrence of any such combination incrementing the contents of the respective cell.

Abstract: A generator of ringing signals at a subscriber station of a telecommunication system, designed to respond to electromechanically generated lower-frequency call signals of large amplitude as well as to electronically generated higher-frequency call signals of small amplitude emanating from a central office, comprises a signal identifier and a level discriminator connected in parallel to an incoming line. The signal identifier includes a local oscillator emitting a train of pulses at a cadence substantially higher than any call-signal frequency which, in the presence of an incoming signal, are fed to a pulse counter during alternate half-cycles of a square wave derived from that signal.

Abstract: The invention relates to a flat plate X-ray detector. In one example a back plate of a flat xenon detector has coaxial cables in a conducting solid matrix connected to the power supply. Each cable center conductor is a small capacitor which charges in response to ion collection. The signals are derived via a commutator.In another embodiment the back plate is an anisotropic plate discharged in a spiral pattern similar to a gramophone record groove.

Abstract: A method of manufacturing CF.sub.4 and/or C.sub.2 F.sub.6 characterized by employing a mixed gas of tetrafluoroethylene and carbon dioxide at a mol ratio of less than 4:1 and heating it to a temperature exceeding 900.degree. C.

Abstract: A Rosary device comprises a hand held casing having electrically energizable elements in a pattern, the elements having different characteristics corresponding to different Rosary prayers.

Abstract: A thermosetting synthetic crosslinking resin containing selected ethers of the reaction product of an isoadipoguanamine mixture and formaldehyde can be incorporated into a variety of coating compositions to provide finishes that are characterized by hardness, flexibility, durability, excellent adhesion, and commercially-acceptable cure temperatures.

Abstract: Spunlike yarns having free ends are made from continuous filament yarn by fluid-jet texturing. The fibrous elements that make up the yarn have irregular and varying cross-sectional shapes, said fibrous elements being forked and merged in a fortuitous manner. The spunlike yarns may also contain fibrous elements that extend substantially continuously throughout the length of the yarn.

Abstract: An analog signal sent from one telephone subscriber to another is periodically sampled at a transmitting terminal and each sample is held for a storage period equal to a sampling interval as well as to a basic pulse period of a random or pseudorandom sequence of bipolar binary pulses. A stepped wave formed from these samples is mixed with that pulse sequence before being conveyed, e.g. by frequency modulation, to a receiving terminal where the wave so distorted is mixed with a like pulse sequence to re-establish the undistorted wave which may be contaminated by interferences from other users of the same signal link. The steps of the re-established wave are integrated over periods equal to the sampling interval and the integration products are stored for like periods to produce a purged stepped wave from which high-frequency components are subsequently filtered out to restore the original analog signal. The signal link utilized may be an emergency channel made available, e.g.

Abstract: A tensioning device for the take-up roll in an automatic laminating apparatus is characterized by a clutch member attached to the roll, the clutch member having a clutch material thereon biased into an abutting interface with respect to a drive member. The drive member is rotated at a first predetermined angular velocity. The clutch material continuously slips along the interface with the drive member to impart a second, lesser, angular velocity.

Abstract: In an electrical connector apparatus two connectors are each attached to opposite ends of a multiplicity of connector pins and the middle of said pins are mounted in a circuit board, one of said connectors being spaced apart from the circuit board by a pair of spacer elements and connected to the other connector by a pair of mounting pegs passing through openings in the circuit board and spacer elements. Movement between one connector and the circuit board is achieved in response to rotation of the spacer elements.

Abstract: The insulative stand-off is mounted on a frame and supports a heating coil. In the preferred embodiment the coil loops engage retention surfaces inside the inverted T-shaped opening in the end of the stand-off. The sides of the stand-off forming the opening have cam surfaces which squeeze adjacent central loops together during mounting while the loops adjacent the central loops are deflected to the outside of the stand-off. When the central loops reach the crossbar of the T they spring apart to fix the coil. Other embodiments are shown--all have retention surfaces generally parallel to the coil loops and transverse the coil axis. Cam surfaces control access to the retention surfaces to deflect the loops as they are moved to the retention surfaces and the coil resiliency biases the loops into engagement with the retention surfaces when mounting is completed.

Abstract: Toy motorcycle play apparatus comprising a toy motorcycle having an energy-storing drive-train mechanism, and a launcher for imparting energy to the mechanism and then releasing the motorcycle for forward movement. The motorcycle comprises aligned rotatable front and rear ground-engaging wheels and an intermediate flywheel, all rotatable about horizontal transverse axes. The energy-storing drive-train mechanism is formed by the flywheel, one of the wheels, and a gear train between them which reduces speed and increases power and duration of rotation at that drive wheel. In operation, the motorcycle is powered by the flywheel, which also serves to maintain it upright by gyroscopic action as it moves forwardly. The launcher holds the motorcycle in the desired upright orientation with the drive wheel elevated so that it can rotate freely while energy is being stored in the flywheel. Then the motorcycle is released, the drive wheel is allowed to engage the launcher platform and propel the motorcycle forwardly.

Abstract: Perfluoroglycidyl ethers of the formula ##STR1## are prepared by epoxidation of a perfluorodiallyl ether of the formula:CF.sub.2 .dbd.CFCF.sub.2 OR.sub.F.The glycidyl ethers are useful as monomers for preparing polymers which provide crosslinking or cure sites and are stable elastomeric materials useful as sealants, caulks, and fabricated objects.

Abstract: A thermoplastic copolyester elastomer composition comprising a copolyester consisting essentially of a multiplicity of long-chain ester units and short-chain ester units joined through ester linkages, said long-chain ester units being represented by the formula (Ia), formula (Ib) and combinations thereof ##STR1## and said short-chain ester units being represented by formula (II) ##STR2## where G is a divalent radical remaining after the removal of hydroxyl groups from at least one long-chain glycol having a melting point of less than about 55.degree. C.

Abstract: Sash guide and balance lock structure in pivoted window structure, which window structure includes an elongated hollow jamb member having a slot in one side thereof and an adjacent pivoted window sash, which sash guide and balance lock structure comprises a pivot shoe positioned within the jamb member for reciprocal movement therewithin having an opening therethrough aligned with the slot in the jamb member and including resilient tab portions extending centrally from the rear side of the pivot shoe and toward the bottom thereof, on each side of the opening terminating in cam portions, and a cylinder cam including a cylindrical shank having an axially extending non-circular opening therein extending through the opening in the pivot shoe and a flat head having a resilient periphery on the cylindrical shank having notches in opposite portions.

Abstract: A fluid flow mixer for viscous materials in a transfer pipe where axial channels and peripheral channels extend from the entrance end of the mixer to the exit end of the mixer such that, at the exit end, the axial channels alternate with the peripheral channels around the mixer's longitudinal axis.

Abstract: A petroleum distillate-free or essentially petroleum distillate-free prime coat material for application to absorptive surfaces, such as untreated road or street surfaces, which is designed to penetrate, bond, and stabilize such existing surfaces and to promote adhesion between such surfaces and construction courses that follow. This type of material is also often used as a dust palliative. For this purpose, the material is applied to an untreated surface to control dust.