Abstract: A reversible vibratory motor includes a driving member responsive to a first frequency of vibration for driving a driven member in a first direction, and responsive to a second frequency of vibration for driving the driven member in the opposite direction.

Abstract: A linear motor for the high-speed reciprocating movement of a mass-possessing rotor slide component and particularly of a radiation filter, with parallel flat stator plates with permanent magnets which are fitted to the facing sides of the stator plates and set up a magnetic field across the air gap between them. Fitted to the slide is a coil which can be slid in the permanent magnetic field. The coil consists of an aluminium foil provided at its surface with an insulating layer, which foil is wound to form an air-cored coil, and the slide is supported on gas bearings which extend through the aluminium bridges between the stator plates. To avoid impacts during acceleration and braking linear motors working reciprocally are provided.

Abstract: An electrothermodynamic generator and a compressor is described for use in a Marks/Ericsson Cycle. It uses a charged liquid tin droplet/nitrogen aerosol for heat/electric conversion at a maximum temperature of about 1800 K and a charged water droplet/nitrogen aerosol electrothermodynamic compressor at 300 K in a Marks/Ericsson Cycle which has a theoretical efficiency of 83%, and a practical efficiency of 60% to 70%. An ETD compressor with a water charged droplet is described. The other cycle components, comprising a heat source, liquid tin loop, heat exchangers, water loop and liquid pump are not here considered.

Abstract: Arrangement for joining the cable ends (7) of a stator winding of electric motors, in particular external rotor motors (5), with a connecting lead, using electrical connecting elements (6) and an insulating disc (1) arranged at one end of the stator, which disc has an opening passing from the front insulating shaft (9) of the stator plates (13) of the electric motor and serves to cover as well as insulate the winding head (4) of the stator winding, wherein the connecting elements (6) are formed as connectors (15) and in each case a connector part is held in a frictional or positive locking manner on the insulating disc (1).

Abstract: There is disclosed a closed-loop, linear position servomotor. The servomotor includes a tubular armature disposed within a tubular stator in which the stator includes, radially disposed throughout the shell thereof, a plurality of magnetically symmetric field magnets, each having its magnetic axis directed to the radial center of the stator and armature. The stator further includes a plurality of symmetric, longitudinally disposed alternating current excitation windings, the longitudinal extent of such windings corresponding to the extent of change in linear position of the servomotor. The armature of the servomotor has a non-magnetic substrate upon which is longitudinally wound high current, direct current windings, these windings comprising the primary windings of the servomotor, with the excitation windings of the stator comprising the secondary windings of the motor.

Abstract: A high speed shaftless rotor construction is disclosed including a method of sequentially building up the rotor to facilitate disassembly for reworking and maintaining precise alignment of the reassembled elements. End turn supports are matched and preliminarily assembled with bolts to the core and the parts machined to achieve desired tolerances. After machining, the end turn supports are separated from the core, matched with end shaft fittings and additional machining carried out, after which the turn supports are separated from the end shaft fittings and reattached with the core. The shaft fittings are realigned with the assembled end support fittings and bolted into position after which final machining can be completed. All elements are then disassembled and the parts deburred and cleaned to eliminate any contamination prior to winding the field coil.

Abstract: A construction is provided for reducing axial rotor oscillations in a small electric motor having a stator, a rotor, a shaft and sleeve bearings having end faces, the sleeve bearings journalling the shaft. The construction includes a rotation element having a sliding surface at one of its axial ends, a spring element urging the sliding surface in sliding contact with a face of the adjacent sleeve bearing and a driving connection for rotating the rotation element in synchronism with the motor shaft during rotation thereof.

Abstract: For the iron cores of an electrical machinery and apparatuses, such as transformers, electric motors and generators, mostly a grain-oriented electromagnetic steel sheet is used. Since the grain-oriented electromagnetic steel sheet has a (110) [001]texture and is thus easily magnetized in the rolling direction, the direction of magnetic flux in the iron cores is required to be coincident with the rolling direction. However, this requirement cannot be completely fulfilled due to the shape and an operation efficiency of producing the iron cores as well as generation of a magnetic reluctance in the butted iron-core elements. Laser irradiation regions are formed, according to the present invention, for example, on the following: the parts of the iron core where the rotational magnetic field is generated; the entire surface of the I-type elements or: the major part of the E or C type element.

Abstract: An electrical pulse generator comprising a series of electromagnets spatially positioned about the outer circumference of a disc-like base and a second series of complimentary electromagnets positioned about an inner position on said disc. One of each of said first and second series electromagnets positioned relative to each other creating a magnetic field therebetween. A second disc-like base rotatable above and parallel with said first disc. A continuous coil winding ring mounted on the underside of said second disc and positioned relative to said first and second series of electromagnets to traverse said magnetic field upon rotation of said second disc and thereby inducing a voltage/current potential in said coil winding.

Abstract: A stator comprising a cylindrical permanent magnet and a helical charging coil wound thereon and embedded inside a cylindrical plastic casing, and a reciprocator comprising two cylindrical electromagnets with helical charging coils wound thereon and a helical charging coil embedded inside a hollow cylindrical plastic casing enclosing the stator. The two electromagnets are mounted at opposite ends of the permanent magnet and are axially aligned therewith, with an intervening space to allow for longitudinal movement of the electromagnets. The helical charging coil occupies the electromagnetic field of the permanent magnet.The helical charging coils of the electromagnets are wound in opposite directions so that when one electromagnet attracts one end of the permanent magnet, the other electromagnet repels the opposite end.

Abstract: A speed governor for use in a time-delay switch having an adjustable delay time, low amount of operating noise, high braking force, and simple construction. Two generally annularly shaped magnets are disposed on opposite sides of a conductive disk rotated at a higher rate than an input member by an accelerating gear train. One of the magnets is stationarily mounted while the other is rotatably adjustable in position via an adjustment plate having an adjustment lever extending outside of the casing of the device.

Abstract: A hermetic compressor unit driven by a dynamoelectric machine therein adapted to be energized from a source of power has a housing with a chamber therein, and means associated with the housing and communicating with the chamber is adapted for connection with the power source. A stator of the dynamoelectric machine mounted to the housing within the chamber includes winding means having a set of lead ends integral therewith. Plug means is removably associated with the connection means for receiving the lead ends and for connecting them in circuit relation with the connection means. A set of means are associated with the lead ends of the winding means for insulating them electrically from each other with the insulating means and lead ends twisted together into a twisted bundle thereof.

Abstract: A rotary position control device is provided with a three-rotary position controlling mechanism. The control device includes a disk member having a toothed portion on its circumferential part, to which an output shaft is secured in order to drive a driven source coupled to the output shaft. The disk member further has a circumferentially spaced slot having a recessed portion provided halfway between the both ends, the both ends and the recessed portion functioning as first, second and third stopper portions which receive a rod member disposed in the slot. The disk member stops its rotation when the rod member engages the both ends of the slot of the disk and also when the rod member engages the recessed portion, this third stop position of the disk member being achieved only when the electromagnetic solenoid is energized, thus causing the required relative movement between the output shaft and the driven source coupled to the output shaft.

Abstract: A gaseous electrode for a magnetohydrodynamic generator is positioned at an angle with respect to the MHD magnetic field thereby causing an arc to move both circumferentially and longitudinally about an inner electrode element within a cavity so that a gas passed through the arc is ionized to form a plasma stream as it enters the generator's main channel. A second gas is introduced into the cavity at either end of the electrode assembly to reduce erosion of the inner electrode.

Abstract: A linear and rotary electromagnetic device particularly adapted as a linear and rotary stepper or stepper motor. A cylindrical movable member or armature is provided which is mounted for both axial movement and for angular movement about its axis. The armature member has teeth on its surface formed in both axial rows and in circumferential alignment or rows. Stator means having poles with windings associated with the poles is provided, the stator means having a central opening in which the movable armature member is mounted for axial and angular movement. By energizing certain angularly spaced windings, the movable armature member may be caused to rotate. By energizing axially spaced windings, the movable member of armature can be caused to move axially. Simultaneous angular and axial movement is achieved by energizing appropriate windings.

Abstract: A self contained failure tolerant linear drive mechanism that is especially adapted for celestial space applications. First and second motors are concentrically connected to a shaft for axial movement through rotation of either or both of the motors. A locking mechanism having failure tolerant releasing means cooperates with each motor to provide for selective actuation of either motor and predetermined axial movement of the shaft.

Abstract: An electromechanical machine is disclosed which comprises a field producing assembly mounted in a housing so as to define an air gap circumferentially disposed about an axis of rotation. The field assembly is structured to produce a distribution of magnetic flux in the air gap having P periodic extremes of flux density about the axis. An armature is positioned in the air gap, and mounted so that the armature and field assembly are rotatable relative to each other. The armature has a circular array of C non-overlapping coils on each of its front and back faces, the coils on one face being angularly offset from the coils on the other face and each having the same arcuate extent, smaller than 360 degrees divided by P.

Abstract: The invention relates to a drive mechanism which comprises a single-phase synchronous motor (5) for converting the rotation of the motor shaft (3) into a pulsating axial movement by means of an eccentric cam (25). The motor shaft (3) carries a coaxial cylindrical body (13) whose eccentric cam (25) co-operates with a piston rod. The drive-shaft system comprising the motor shaft and body is supported in a multiple bearing comprising a broad-area bearing (23) for the circumferential surface (21) of the cylindrical body (13) and a shaft bearing (19) for the shaft end (15) which projects from the body (13) at the end which is remote from the motor (5). The end portion (29) of the piston rod is guided so as to be axially slidable.

Abstract: A rotor winding of air-core disc shape is formed by winding an insulation-coated conductor so as to enclose a yoke of disc shape with only minor gaps at the outside of the yoke. The conductor of this rotor winding extends in the radial direction through the vicinity of the center, and is continuously wound, the turns being successively shifted in the tangential direction. The rotor is composed of the rotor winding, a rotor shaft fixed on this center, and a commutator. A permanent magnet is provided in such a position as opposes the yoke through the plane of the rotor winding of air-core disc shape. This magnet has at least a pair of magnet poles distributed to the opposite position against the rotor shaft, and each magnet pole supplies reverse magnet flux to the opposing yoke. The yoke, the magnet, and a brush contacted the commutator are mounted on the motor case, and the rotor is supported to the motor case so as to be rotated freely.

Abstract: An arrangement for a linear motor which uses a shorted turn as a shield for the magnet of the motor to thus provide a substantial reduction in the introduction of particulate matter into the Head Disk Assembly environment associated with the linear motor, without substantially increasing the reluctance of the magnetic circuit of the motor.