Abstract: An electromagnetic switching device includes a mechanism to couple the magnet armature with its contact carrier. A plate spring is provided with cylindrical formations in its mid-section as well as on its opposite ends so that the plate spring can bend beyond its elongated state. This prevents the spring tension from being altered by contact with the ends of the opening of the magnet armature and the ends of the supporting slots.

Abstract: A solenoid apparatus comprising a solenoid case having an open end and a closed end, an electromagnetically movable plunger mounted in the solenoid case, and a substantially cup-shaped flexible-water-tight boot surrounding a plunger end portion projecting from the open end of the solenoid case and connected to the open end of the solenoid case, the flexible boot having a bottom wall central portion intimately secured to an end face of the plunger end portion. The flexible water-tight boot is provided with an air-vent hole which is closed when the plunger is outwardly extended from the solenoid case and which is opened when the plunger is retracted into the solenoid case due to the deformation of the flexible boot at its wall portion upon the movement of the plunger.

Abstract: A specially designed magnetic circuit which is provided which is intended to magnetize cylindrically shaped magnetic materials (1) in the axial direction. The magnetic circuit comprises a magnetizing coil (2), permanent magnets (5, 6), and magnetic return conductors (3, 7) of a ferromagnetic material. The magnetic circuit is well suited to utilize the magnetostrictive properties of a magnetic material.

Abstract: A superconducting coil conductor composed of a plurality of strands (10) twisted together to form a cylindrical structure, each strand (10) being composed of a core (2) composed of a plurality of parallel filaments of a superconducting material, enclosed by a metal sheath (4) forming a matrix in which at least some of the filaments are embedded, and a tubular member (6) enclosing the sheath (4) so as to be in intimate electrical contact with the sheath (4) and support the core (2).The conductor is held in support plates (16) each presenting a U-shaped conductor support channel (20) spaced inwardly from an exterior surface of the support plate (16) which is in contact with the cryogen, and a conductor compression wedge (18) inserted in the channel (20) for holding the conductor in place.The solenoid coil further includes insulating members (38) interposed between the support plates (16) and projecting radially beyond the conductor support system.

Abstract: In a superconducting solenoid disposed in a cryogenic bath, the solenoid being in the form of a cylindrical annulus having a vertical axis and being composed of: two conductors (2,4) each containing superconductive material and each wound into a single layer helical coil; first and second support units (6) each supporting a respective conductor (2,4); and insulation members (8,12,14) composed of horizontal insulating layers (12) interposed between successive turns of each of the conductors (2,4), and vertical insulating layers (10) interposed between the first support unit (6) and the second support unit (6), the insulation members (8,12,14) being constructed such that variations in the current flowing through the conductors (2,4) produce varying magnetic fields which cause the insulation members (8,12,14) to experience heat-generating frictional movements, the support units (6) and the insulation members (8,12,14) are provided with a network of interconnected flow channels (22,24,26) communicating with the b

Abstract: An electromagnet comprising a magnetic field coil and a substantially cylindrical magnetic shield coaxially disposed around the field coil for defining a magnetic circuit therearound. The magnetic shield comprises a hollow cylindrical magnetic yoke with ring-shaped end plates at its opposite ends. The magnetic yoke's cylindrical wall has a cross-sectional area effective for accommodating the magnetic flux generated by the magnetic field coil. The magnetic yoke has a pair of thicker wall sections at first diametrically opposite positions, and a pair of thinner wall sections a second diametrically opposite positions separated by 90 degrees from the first diametrically opposite positions. The thicker and the thinner wall sections are thicker and thinner, respectively, than a mean required wall thickness which is a wall thickness necessary for providing to the magnetic yoke a cross-sectional area for effectively accommodating the magnetic flux generated by the magnetic field coil.

Abstract: An electromagnetic drive actuator including a magnetic circuit comprising at least one yoke having plate-shaped, L-shaped, E-shaped cross section or the like, at least one magnet mounted on the yoke and a magnetic flux extending from the magnet to the yoke, at least one coil arranged so as to cross the magnetic flux and produce a drive force in a direction crossing a plane including the magnetic path of the magnetic circuit when current is applied to the coil, and at least one magnetic shield member provided at the side portion of the coil to thereby prevent a counter drive force from being produced in a direction opposite to a desired direction of a drive force produced by the coil.

Abstract: Bistable magnet, in particular for the actuation of valves and the like, with a movable piston that has a pole face and that is held by a permanent magnet in one of its two stable positions, wherein this piston has a stop face that is provided with a damping plate and that with an opposing face that is built stationary into the housing defines an end position of the piston. To avoid switching noises without decreasing the holding forces it is provided that, in addition to the stop face on the piston, a pole face is provided that interacts with a stationary pole face and that a device that guides the magnetic flux and bridges the air gap between these pole faces is provided between these pole faces.

Abstract: A solenoid apparatus includes a core of magnetic material and a plunger of magnetic material movably mounted at one end of the core. A bobbin is disposed about the core and the plunger and an electric coil is wound thereon. A U-shaped yoke extends over one end of the core and is secured thereto. Opposite ends of the wire forming the coil are connected to first and second terminals, one of which is connected to the positive lead wire and the other of which is connected to the yoke, whereby the yoke acts as the ground connection.

Abstract: An actuation device having a moving member with a part magnetized perpendicularly to its displacement direction and two magnetic circuits having each, an air gap in which is arranged a portion of the magnetized part. Each magnetic circuit also has at least one electric energization coil coupled with it. The moving member is so arranged as to allow the magnetized part to effect a limited motion in both directions while the magnetic fluxes generated by the magnetized part are closed in the magnetic circuit outside the air gaps. The device provides a constant force on the limited path and has virtually no residual torque.

Abstract: A static conversion device for a color television picture tube having a base unit, a central unit and a cap unit mounted in a stack about the neck of the picture tube. Each of the units centers a pair of magnetic rings, and the rings are mounted between outwardly extending tabs of adjacent units. The assembly is maintained in position on the neck of the picture tube by a plurality of pairs of fingers extending from the units to abut the neck of the picture tube.

Abstract: The invention relates to a method of dividing a ring core (42) of sintered oxidic ferromagnetic material in two semi-annular parts, in which dividing seams 40, 41 are formed in the ring core 42 by means of two spot-shaped heat sources 43 and 44. The spot-shaped heat sources 43 and 44 are moved across the ring core 42 along the lines 40, 41 at a velocity v. An accurate and controlled division of the ring core 42 is obtained independent of the ratio between the heat supplied and the rate of movement v.

Abstract: A superconducting switch is bifilarly wound with two cupro-nickel matrix superconductors. Three layers of the wire is wound, with each layer of windings wrapped with four wires in hand and input and output portions of the wires adjacent to one another. This configuration and relationship between adjacent wires is maintained throughout all the layers of the entire winding. The windings are started 180.degree. apart and input and output leads are extracted 180.degree. degrees apart. The switch also includes a core around which the wires and a heater are wound, a casing to enclose the core, heater and wire windings, and a solid epoxy body which fills substantially all of the voids in the switch. Switch leads are stabilized using a copper channel in which they are soldered to avoid quenching when they are subjected to a high current in a magnetic field, and the copper channel is surrounded and soldered to a copper braid.

Abstract: According to the invention, a pair of pockets (13) are formed in one flange (12). A pair of almost L-shaped connecting terminals (14) are fitted into the pocket with a pressure. The starting and terminating sides (10a, 10b) of a coil core wire (10) are respectively wound around the connecting terminals. Thus, the cutting-out of the coil core wire is prevented and the connecting work can be easily performed.

Abstract: A superconducting electromagnet comprising an outer core having an aperture; an inner core having a periphery characterized for complementary insertion into the outer core aperture leaving a uniform gap therebetween and a frame means for coupling the outer and inner cores into a fixed position relation. A magnetizing means, such as a coil on the inner core develops an initial flux field. The flux field passes through the inner core, the first gap, the outer core, across the second gap to the inner core in response to excitation of the magnetizing means. The outer and inner cores are coated on all surfaces except opposing inner and outer core gap surfaces with superconductive material. The superconductive material is applied to the outer and inner cores at regions selected to pass induced magnetizing current. The induced magnetizing current circulating via closed current paths within the superconductive material to support the flux free of energy loss on termination of excitation of the magnetizing means.

Abstract: A magnetic resonance magnet is provided having a cylindrical vacuum vessel and a cylindrical cartridge having superconductor windings, situated inside the vacuum vessel. The cartridge defines a pair of circumferential grooves in the outer surface of the cartridge near each end of the cartridge. Means are affixed to the vacuum housing for securing the ends of four cables to the housing. The securing means are situated in pairs circumferentially spaced on either side of where a first diametral line passing through said grooves on one end of the cartridge emerges radially on either side of the housing. The securing means are also situated in pairs circumferentially spaced on either side of where a second imaginary diametral line passing through said grooves on other end of the cartridge emerges radially on either side of the housing.

Abstract: A movable coil driving unit comprises a driven member movably supported by conductive flexible supporting members with respect to a fixed member, a coil fixed to the driven member, and a driving member provided with a power source. One ends of the supporting members are connected to the ends of leads extending from the coil fixed to the driven member, and the other ends of the supporting members are connected to leads extending from the external power source.

Abstract: A magnetic deflection system for charged particles, the which includes a coil arrangement for generating a magnetic guide field perpendicular to the plane of the desired orbit so as to guide the particles in the plane S.sub.E of the desired orbit on a deflection path on a deflection radius r.sub.0. The system has two coils which are arranged on top of one another on either side of an area A.sub.0 defined by the direction of the magnetic guide field and the deflection radius r.sub.0 so that the winding faces of the coils extend parallel to area A.sub.0, with two of the coils being disposed above the plane S.sub.E of the desired orbit and two below the plane S.sub.E of the desired orbit.In a preferred embodiment, the coils are composed of at least one double pancake.

Abstract: A deflector for a cathode ray tube (called herein "CRT"), and more particularly a stator type deflector in which a plurality of slots for windings are formed in the inner surface of a tubular core and deflecting coils are positioned in these slots. Both convergence (spot) distortion and raster (pin cushion) distortion are small. The magnetic field distribution at the neck is a barrel type, and that at the screen is a pin cushion type. Both the horizontal and the vertical magnetic fields are obtained by adjusting the positioning of the winding slots formed in the inner surface of the tubular core for positioning the deflecting coils. This is accomplished by adjusting the angles of the plurality of winding slots formed in the inner surface of the tubular core which contain the deflecting coils.

Abstract: A magnetic field transfer device includes a pair of oppositely wound inner coils which each include at least one winding around an inner coil axis, and an outer coil which includes at least one winding around an outer coil axis. The windings may be formed of superconductors. The axes of the two inner coils are parallel and laterally spaced from each other so that the inner coils are positioned in side-by-side relation. The outer coil is outwardly positioned from the inner coils and rotatable relative to the inner coils about a rotational axis substantially perpendicular to the inner coil axes to generate a hypothetical surface which substantially encloses the inner coils. The outer coil rotates relative to the inner coils between a first position in which the outer coil axis is substantially parallel to the inner coil axes and the outer coil augments the magnetic field formed in one of the inner coils, and a second position 180.degree.