Abstract: Means for reducing mechanical vibration or acoustical noise between a dynamoelectric machine (e.g., an electric motor) and its application is disclosed in which the endshield of the motor has at least one stud extending therefrom. The application (e.g., a washing machine transmission) has an application frame with at least one aperture therein coaxially receiving the stud. An elastomeric grommet having a bore therethrough receives at least a portion of the stud and the grommet bears on the endshield of the motor and on the application frame.

Abstract: An electric rotating device, such as a commutator motor is provided with a stator supporting two terminal blocks of electrically insulating material. The terminal blocks are provided with a series of grooves in which wire ends of the stator windings are inserted. At least one of the grooves has an entrance part in the form of a slit and being defined by a resilient tongue having rounded edges. The tongue and the adjacent winding form a V-shaped entrance opening leading to the entrance part of the groove. The wire ends of the windings are guided by the grooves to terminal pins to which they are connected.

Abstract: A generator that utilizes the magnetic flux lines of the earth and includes a base, a frame that is attached to the base, a shaft that has a free end and is rotatably mounted in the frame, components for rotating the shaft, a plurality of brushes that are mounted on the frame, at least one ring that is affixed to the free end of the shaft and which is in rotatable contact with the plurality of brushes, and an armature that is formed by coils of wire which are wound around a rod that is attached to the shaft, the coils of wire have free ends which are connected to at least one ring so that when the armature rotates the coils of wire cut the magnetic flux lines of the earth and cause an electric current to be generated at the plurality of brushes.

Abstract: A coil for a voice coil actuator employed in a transducer positioning system of a disk file is disclosed in which the coil is constructed to minimize vibrations in a direction parallel to the coil axis which tend to occur as a result of rapidly energizing the coil during the seek and track following modes of the positioning system. The coil is characterized by a composite layer of viscoelastic material and aluminum foil disposed between the coil bobbin and the coil winding where the aluminum foil functions to increase the shear deformation of the viscoelastic material and its modulus of rigidity.

Abstract: An electromechanical transducer particularly useful as a linear alternator driven by a free-piston Stirling engine is disclosed. A relatively high permeability material is formed into a flux loop having at least a pair of spaced gaps formed transversely through the loop. The gaps are aligned along a reciprocation path for a magnet which is mechanically mounted for reciprocation between alternate positions within the gaps. The magnet has a magnetization vector transverse to the reciprocation path and is drivingly linked to a mechanical energy input or output for operation respectively as an alternator or motor. The armature coil is wound around a portion of the flux loop.

Abstract: Vibration isolation between a source (1) and a mounting (3) is provided by means of a vibration-cancelling actuator (4a) with a shear isolator (5) placed in series with the source (1). Mechanical and magnetic actuators are disclosed, a preferred mechanical actuator including its own shear isolation with a ratio of compliance in shear and axial directions of at least 50:1.

Abstract: A self-starting rotational motor capable of providing significant torque in a practical working range is disclosed. The motor employs a magnetic propelling force. The motor is based on the principle of maintaining interacting substantially perpendicular rotor and stator magnet flux fields, one within the other, without gaps or spacing around the entire circumference of the magnet stator. The rotor magnets are controlled and moved relative to the stator magnets by a mechanism whereby the perpendicular rotor and stator magnet flux fields are maintained constantly in interacting relationship to produce turning of the rotor in one direction.

Abstract: A functional unit for a motorized electrical appliance consists of a supporting block, an electric motor, power take-off means and means for supplying electric current to the motor. The various elements are assembled on the supporting block and therewith comprise a readily assembled, low cost sub-assembly adapted for use in a variety of appliances.A method of assembling the functional unit and the application of the unit to a hand-held cordless vacuum cleaner are also disclosed.

Abstract: A rotation detector for detecting the rotational speed and phase of the upper rotary drum of a guide drum of a VTR in respect to the stationary drum of the guide drum as the upper rotary drum rotates about its rotational axis, the rotation detector including a magnet mounted on the lower surface of the upper rotary drum along a first circumferential path which is coaxial with the rotational axis of the upper rotary drum, five yoke members mounted along the first circumferential path on the lower surface of the upper rotary drum with the magnet and each yoke member being equally spaced from one another along the first circumferential path, a first iron core having a coil wound about it mounted on the stationary drum along a second circumferential path which is coaxial with and opposing the first circumferential path for producing a signal corresponding to the rotational phase of the upper rotary drum in response to the passing of only the magnet during rotation of the upper rotary drum, and two second iron cor

Abstract: A submersible motor is disclosed which is adapted for submersion within an environmental liquid and which has a gas-filled housing having first and second conduits each with proximate and distal ends and communicating with the interior of the housing for permitting ingress of gas into the housing through the first conduit and for discharging gas and accumulated liquid egressing from the housing above the surface of the environmental liquid through the second conduit to provide a visual indication of leakage rate when the first conduit is connected to a source of compressed gas at a pressure in excess of the ambient pressure at the level of submersion of the motor.

Abstract: A self-starting rotational motor capable of providing significant torque in a practical working range is disclosed. The motor employs a magnetic propelling force. The motor is based on the principle of maintaining interacting substantially perpendicular rotor and stator magnet flux fields one within the other without gaps or spacing around the entire circumference of the magnet stator. The rotor magnets are controlled and moved relative to the stator magnets by a mechanism whereby the perpendicular rotor and stator magnet flux fields are maintained constantly in interacting relationship to produce turning of the rotor in one direction.

Abstract: A novel induction-type electrostatic generator is disclosed in which moving electrodes are transported back and forth between two Faraday cages. Each moving electrode, once enclosed by a cage, is contacted to the cage, then separated by more than the sparking distance before making electrical connection to the opposite moving electrode or to ground. In this way, charge opposite in polarity but proportional in magnitude to the charge on each cage, is induced in each moving electrode and carried into and imparted onto the next cage, progressively elevating the cage potentials until the corona or arcing limits are reached. Initiation of charging is spontaneous, deriving from inevitable statistical imbalances in nature.

Abstract: The small a.c. motor which is intended in particular for the oscillating drive of a toothbrush fastened to the armature shaft, has as the armature a cylindrical permanent magnet (4) magnetized diametrically, a stationary coil surrounding this permanent magnet at a clearance along its whole length, its turns running essentially rectangularly, and a tubular stator case (1) surrounding the coil and of rectangular cross-section, to which the outer periphery of the coil being adapted. The coil is composed of two equal part-coils (2,3) and orientated with its axis perpendicular to the axis of the armature and its planes of winding lie essentially in parallel with the large sidefaces of the stator (1). The two part-coils (2,3) rest against one another at faces orientated in parallel with their planes of winding in a plane passing through the armature axis, and their edges running diametrically to the armature have in the center semi-circular recesses (2a,2b,3a,3b,) for the passage of the armature shaft (5).

Abstract: A linear pulse motor includes; a flat primary body having a pair of first magnetic circuit forming members provided with a coil; a flat secondary body including a second magnetic circuit forming member; the flat primary body and the flat secondary body being in parallel planes to each other and the one being movable relative to the other in one axis of direction; the first magnetic circuit forming members each having two head portions and two leg portions being substantially parallel to each other; first plural teeth being formed at constant pitch in the head portions respectively; the pair of first magnetic circuit forming members being so arranged that the head portions are concentrated to one another; second and third plural teeth being formed at the same constant pitch as the first plural teeth and in parallel rows, in the second magnetic circuit forming member, the second and third plural teeth being shifted from each other by a predetermined length.

Abstract: A repeatable explosive-driven electrical pulse generator system includes an explosive propellant driver in which the chemical charge in a cartridge is exploded by impact of the driver's firing pin by the hammer of an actuator. The chemical energy released by the explosion drives a piston and piston rod within a cylinder of the driver from an initial retracted position to an extended position. Simultaneously, a high coercivity permanent magnet attached to the piston rod and disposed between the poles of a magnetic circuit in a slot of a ferromagnetic core is ejected from the magnetic circuit. Such rapid ejection causes rapid decrease in the flux flow in the magnetic circuit and generation of an electrical pulse in a coil coupled in the magnetic circuit. The restoring action of a reset spring and pneudraulic device compressed by the movement of the permanent magnet returns the magnet and piston rod to their initial positions where they are set for a repetition of the operating cycle of the generator system.

Abstract: Apparatus which has a permanent magnet rotor magnetically coupled to a control field permanent magnet, the magnets being rotatable about respective rotational axes of support that are perpendicular to one another. The magnetic axis of each magnet is perpendicular to the rotational axis of that magnet, so that the rotor magnet changes in attitude about its rotational axis in response to a change in the magnitude and sense of the control field component perpendicular to the rotational axis of the rotor magnet. Such a change of the perpendicular control field component is caused by turning the control field magnet about its rotational axis through motor-driven reduction gearing including a worm and gear combination which holds the rotor magnet at its adjusted attitude after the motor is deenergized.

Abstract: An electric control motor is proposed, which serves to adjust final control elements in closed- or open-loop control systems, in particular for varying the position of throttle devices provided for metering fuels in internal combustion engines. The control motor includes a housing, in which an electromagnetic coil and an armature are disposed, the armature being rotatably supported upon a shaft providing spaced air gaps therewith and with magnetic poles. The magnetic poles are disposed on arcuate conducting bodies, which are disposed in spaced relation on a nonmagnetic carrier body. At ends remote from the magnetic poles, the conducting bodies communicate with one another via a magnetically conductive plate.

Abstract: A stator yoke is provided for a bulb generator or motor. The stator yoke includes a cylindrical wrapping plate with flanges connected to the ends of the wrapping plate. Yoke plates are connected to the core. Axial ribs extend through openings in the yoke plates and interconnect the wrapping plate, the yoke plates and the flanges. The flanges, yoke plate and axial ribs combine to increase the stiffness of the wrapping plate which increases the ability of the yoke to resist deformation caused by static and dynamic forces.

Abstract: An improved impulse-operated rotary stepping motor is constructed with a two-part stator assembly and coil support for each stage to reduce manufacturing costs, improve the magnetic characteristics, improve alignment of the rotor of each stage, provide for an integral bearing, make practical the construction of a motor having the rotor teeth on the inside of the rotor armature shell, and to improve and sharpen the detenting action when stopped by bilaterally stepping the top width of the rotor and stator teeth at least once along the length of each tooth.

Abstract: Rotary devices comprising rotor and stator elements are provided with rotational energy by an adaptation of the principle of the polyphase induction motor. Divided stator windings are provided to enable the rotary device to induce essential currents in the rotor windings without the production of undesirable and destructive currents in the rotary element proper.