Abstract: High energy product, magnetically anisotropic permanent magnets are produced by hot working overquenched or fine grained, melt-spun materials comprising iron, neodymium and/or praseodymium, and boron to produce a fully densified, fine grained body that has undergone plastic flow.

Abstract: In accordance with a preferred embodiment, an arcuate magnet is formed by selectively hot working a composition including iron, neodymium and/or praseodymium, and boron such that an edge of the arcuate has greater apparent coercivity than a central region and the central region has a higher remanence than the edge.

Abstract: A level wind spinning wheel has an improved flyer assembly wherein a level wind mechanism is incorporated in one arm of the flyer in such a way that the arm is free at one end for direct drive and axial removal of the bobbin. The arm comprises a rigid hollow tube extending parallel to the flyer spindle and having a cross-threaded journaled rod for rotation in its ends. A proximal end of the tube is supportingly connected to the spindle via a transverse member, which carries a gear train for rotating the rod. A traveler mounted on the rod carries an eye which protrudes through a lengthwise slot in the tube. A bobbin received on the spindle has a first gear which drives, through the gear train, a second gear mounted concentrically on the rod within the proximal end of the tube. The tube encloses and supports the cross-threaded rod and second gear. The slot retains the traveler eye against rotation on the rod as the traveler moves back and forth along the rod to uniformly wind yarn onto the bobbin.

Abstract: A process for the impact modification of a plastic with a rubbery polymer to form a thermoplastic resin in a reactor extruder is provided. The process includes the steps of dissolving a rubbery polymer in at least one ethylenically unsaturated monomer to form a feed solution, introducing the feed solution into the feed section of a twin screw reactor extruder, heating the feed solution under pressure to a temperature sufficient for polymerization to begin, shearing the feed solution until the solids content formed is equal to at least about twice the rubber content in the feed solution so as to produce a phase inversion product wherein discrete particles of rubber become encapsulated in a continuous phase of plastic polymer formed from the ethylenically unsaturated monomer, thereafter reacting the phase inversion product until at least about 70 weight percent of the feed solution has been converted to a thermoplastic resin, and extruding the said thermoplastic resin through a die.

Abstract: A penetrable target element that is knocked over by a bullet, and is re-set to a standing position by a pull cord that is quickly attached and detached from the target element. After its mutilation by repeated gunfire, the target, with its removably attached pull cord is quickly and easily detached from a stationary part of a base, and an unused replacement target is quickly attached in its place. The replaceable target element contains both the pivot and pull cord connector devices within its single-part structure, and is stabilized and stands, otherwise unaided, on its bottom marginal edge.

Abstract: A bullet trap for safely arresting steel BB ammunition shot from an air gun. Its projectile energy absorbing and rebound control components are the novel combination of a roll of paper towels enclosed in a plastic bag. The surfaces of the towels and bag are held in a spaced apart relationship by an open framework spacer. The supple opposition offered by the easily penetrated roll of paper towels effectively absorbs the projectiles energy, and impedes its further flight. The BBs will usually imbed themselves in the roll of towels, but any occasional BB that bounces away from that surface will be arrested by the surface of the plastic bag. The spaced apart relationship of these surfaces provides a vertical passageway for the spent projectile to drop to the bottom of the bag, where it will be retained.

Abstract: A computer controls a plurality of satellite machines in real time via a single bus comprised of undedicated, continuous transmission lines terminated at both ends in matching impedances. Each machine coupled to the bus is addressed and commanded during every computer cycle, responding only to signals directed to its address. When a machine is not electrically powered the computer provides an internal signal; computer cycles are never interrupted; continuous control of all other machines is maintained. Any number and mixed types of machines may operate from the bus simultaneously. Machines may be added or removed from bus, and machine programs may be added, removed or modified without interrupting operation of the other machines. Automatic safety reset is provided for machine or computer failure.

Abstract: In a preferred embodiment thin layers of rare earth metal-cobalt powder comprising an outer layer of RCo.sub.5 and a discrete transitional layer of R.sub.2 Co.sub.17 are compressed against an adjacent thicker layer of iron powder to form a laminated green compact, with the rare earth-cobalt powdered material being magnetically aligned. The green laminate body is then sintered to densify the rare earth-cobalt material layer to a body wherein the pores are substantially noninterconnecting. The laminate structure is then magnetized. By this method a strong rare earth-cobalt (RCo.sub.5) permanent magnet body is produced in which the rare earth-cobalt layer may be very thin (of the order of 1 to 2 millimeters) but of relatively large surface area and supported by a strong iron layer so as to be durable in handling, manufacturing and use.It is possible to press an RCo.sub.5 layer directly onto a powdered iron layer when the oxygen content of the iron is suitably low. The method will also produce an R.sub.2 Co.sub.

Abstract: Tier pattern selection on the disclosed bale wagon involves periodic rotation of a memory element in the form of a cam plate relative to a cam follower which is connected to means on the bale wagon which will cause the tier pattern selected to be formed. The cam plate is rotated through successive predetermined displacements to successively bring respective peripheral lobes on the cam plate into engagement with the cam follower in a desired sequence. Improved means facilitate accurate rotation of the cam plate and include an electric motor drivingly interconnected to a sprocket mounted on the cam plate shaft, a series of switches and circuitry which interconnects the motor with an electrical power source on the bale wagon.

Abstract: There are disclosed in the present specification a plurality of planetary differential drive formats, both simple and compound, in which each drive pair or couple comprises a driving and a driven element interconnected by a flexible connector such as a roller chain or a cogged belt and at least one driving and one driven element are mounted for planetary motion about the input and output axis.