Abstract: The drive uses a recessed wall or partition between the pole-rings of the two rotors to substantially diminish the occurrence and strength of eddy currents. The recesses may be in the form of grooves, depressions or axial bores which reduce the mass of the wall. The wall is further reinforced by non-magnetic electrically non-conductive or insulated elements of high tensile strength to compensate for the reduction in strength caused by the grooves, depressions or bores.

Abstract: An electrical drive device comprising a stator arrangement of the claw pole type surrounding a stator chamber or compartment and producing therein at least one magnetic field containing at least one rotary field component. There is provided a permanent magnet-rotor arranged in such rotor chamber in such a manner that it rotates in synchronism with such magnetic field and a hysteresis magnetic coupling, the driving part of which is form-lockingly connected with such rotor and the driven part of which is force-lockingly secured to a shaft constituting the power take-off shaft of the drive device. The stator arrangement, the rotor, the driving part of the hysteresis magnetic coupling and the driven part of such coupling are all housed in a common housing.

Abstract: An apparatus for generating a pulse train depending on the speed of a rotary system. The external field of a coupling magnet in a slipping clutch in the rotary system is sensed to provide a measure of speed.

Abstract: The improved magnetic transmission having an armature mounted to rotate about an axis of rotation. Each of a plurality of permanent magnets carried by the armature are magnetically oriented with each adjacent magnet having opposite magnetic polarities. Each of a plurality of drive motor permanent magnets is rotatably mounted at a fixed radial position with respect to the armature axis of rotation and is disposed in magnetic proximity with respect to the permanent magnets carried by the armature. An external power source is provided for driving all of the drive motor permanent magnets at a common speed and in a common direction. Each of the drive rotor permanent magnets is magnetically oriented for rotating the armature at a speed that is proportional to the rotating speed of the drive rotor permanents. The rotation of the drive rotor magnet pulls the armature magnets in a direction opposite thereto after an initial magnetically locked condition is overcome by the external power source.

Abstract: A turntable drive mechanism for a microwave oven having an oven-defining structure having a bottom wall and a hingedly supported door for selectively closing and opening an access opening leading into the interior of the oven-defining structure. The turntable drive mechanism has a turntable assembly removably positioned on the bottom wall for rotation about its own center through a plurality of rollers situated between the turntable assembly and the bottom wall, and a plurality of magnets. Cooperating with these magnets carried by the turntable assembly are magnets carried by a rotary carriage driven by a drive unit in one direction and situated below the bottom wall and externally of the oven-defining structure. Rotation of the turntable assembly is induced by rotation of the rotary carriage by the effect of magnetic forces of attraction developed through the bottom wall between the magnets on the turntable assembly and the magnets on the rotary carriage.

Abstract: The magnetic torque converter consists of two basic components, -A large flat disc/wheel containing multiple equally spaced permanent magnets arrayed so that all poles attract at the disc periphery, - and a,Driving helical rotor fitted with similar permanent attracting magnets which are equally spaced on the outer helical surface. The pitch of the helical rotor is single or equal to the spacing between two adjacent magnets on the disc/wheel.The disc/wheel and helical rotor are made of non-magnetic durable metal and arranged in the same manner as a mechanical worm and worm wheel. The axes of the two rotating components may be at a right angle to each other, or slightly skewed to favor one direction of rotation or the other, depending on the end application of the unit.

Abstract: A magnetically driven motor comprises a housing, an output shaft, a stationary field, a rotating field, a control cylinder and a control cylinder drive motor. The housing and the three pairs of permanent magnets mounted thereon are considered to together define the stationary field of the subject motor. The rotating field consists of a series of permanent magnets at least equal in number to the number of pairs of permanent magnets of the stationary field mounted on the output shaft so as to bear preestablished angular relationships relative to each other and so as to be alignable with the pairs of permanent magnets of the stationary field. The control cylinder consists of a metal cylinder of lesser diameter than the housing of the motor and is supported on the output shaft for relative rotation intermediate the permanent magnets of the stationary field and the permanent magnets of the rotating field.

Abstract: The meter is provided with a housing defining a metering chamber and with a metering member rotatably supported in the chamber. A first rotary element is drivingly connected to the metering member to be rotatable about a rotational axis. The meter is also provided with an indicator mechanism supported on the housing and provided with a second rotary element rotatable about the rotational axis of the first element and separated therefrom by a wall of substantially non-magnetizable material. Each rotary element is provided with two permanent magnets disposed symmetrically with respect to the rotational axis and having their respective axes of magnetization extending parallel to the rotational axis but being oppositely directed. Each permanent magnet comprises a pair of similarly poled component permanent magnets having respective planar surfaces abutting against one another in a plane extending substantially parallel to the rotational axis of the rotary elements.

Abstract: Apparatus for converting the variations in magnetic force between two magnets, one rotating and one non-rotating, into reciprocating linear motion of an associated device, said apparatus including a motor driven rotatable permanent bar magnet and a non-rotatable permanent bar magnet disposed adjacent thereto and mounted for linear movement, and having an actuator shaft attached thereto, whereby the alternately attracting and repelling magnetic forces between the two magnets are effective to reciprocate the actuator shaft.

Abstract: An electromagnetic coupling is provided of the type including a housing, a rotor member disposed in the housing, and an inductor drum means disposed in the housing and rotatable relative to the rotor member. A coil means electromagnetically couples the rotor member and the inductor drum means. The inductor drum means includes a generally cylindrical drum portion having a substantially uniform magnetic reluctance. The drum portion defines an outer, heat-dissipating surface which includes a plurality of circumferentially extending, heat-dissipating grooves spaced apart along the longitudinal axis of the drum portion. A means is included for directing cooling fluid into the housing to dissipate the heat generated in the inductor drum means, and a plurality of fluid-directing members are disposed on the cylindrical drum portion adjacent the heat-dissipating surface.

Abstract: Relative motion is provided between a set of primary magnets positioned along a path of relative motion, and a set of secondary magnets positioned along the path of motion to confront the primary magnets. Such motion causes the primary magnets to displace the secondary magnets in directions transverse to the path. Power output means are driven by transverse displacement of the secondary magnets. The polarities of the magnets are such that the forces of magnetic attraction in one direction parallel to the path are substantially equal to the forces of magnetic repulsion in the opposite direction parallel to the path, whereby a minimum of energy is required to produce said relative motion. SUThis invention relates to an energy conversion system wherein primary motion in a given path produces secondary motion in a direction transverse to the given path.

Abstract: A spiral spring interconnects a pivotably mounted drive lever that may be pivoted either by hand or by a motor, and a pivotably mounted toggle lever that is operably connected to a switch. The toggle lever is held in the switch-closed or the switch-opened positions by main latches which hold the toggle lever in position while the drive lever is pivoted to bias the spring. Once the spring is biased, stop latches engage the drive lever holding it in a spring biased position. The main latches may then be either manually operated or operated by solenoids connected to control circuitry to release the toggle lever so that the spring will react against the toggle lever to either open or close the switch depending on the position of the switch at the initiation of operation. Once the switch has either opened or closed, the spring may be either recharged automatically by the motor, or if manual operation is desired, the motor can be disabled so that the spring can be biased by manual rotation of the drive lever.

Abstract: The coupling is constructed for synchronous as well as asynchronous operation. To this end, the driving rotor and driven rotor are each provided with tooth-like poles and the poles of one rotor are spaced apart to cover only a part of the rotational surface of the rotor. The remaining part of the rotational surface is covered by smooth electrically-conductive layers. A circumferential band may also be disposed about or within a rotor in facing relation to the poles of the other rotor while being of smaller width than the air gap between the two rotors. For increased asynchronous operation, conductor rods are disposed between the poles of the rotors.

Abstract: A printing actuator is provided comprising a plurality of hammers and a permanent rotating shaft capable of actuating each of said hammers for striking. The printing actuator is characterized on one hand, in that each hammer is arranged for rotating round an axis and is integral with electromagnetic means including two poles opposite one another and, on the other hand, in that said shaft bears a plurality of transverse parallel discs made of a conductive material, the two poles being associated with a hammer and arranged on both sides of one of said discs.

Abstract: Apparatus for driving a cartridge mounted rotatable ribbon capstan and take-up reel. A magnetic clutch assembly has a first gear driven by a motor for directly driving the capstan and a second gear magnetically driven by the first gear for driving the take-up reel through a gear train. The magnetic clutch assembly includes a magnetic drive ring secured to the first gear and having a plurality of inner peripheral teeth, a pair of annular magnetic members mechanically linked to the second gear, an annular magnet disposed between the magnetic members and a magnetic washer disposed below the lower magnetic member. The magnetic clutch assembly provides a yieldable driving force to the take-up reel which releases when the tension in the ribbon between the capstan and the take-up reel exceeds a predetermined threshold value. This threshold value may be adjusted by varying the dimension of the magnetic washer or the air gap between the drive ring and the annular magnetic members.

Abstract: A motor utilizing permanent magnets or electromagnets wherein the magnets are arranged with like poles facing one another in a normally repelling position. A magnetic flux field suppressor having a non-magnetic portion and a magnetically permeable portion is disposed between the magnets for repeatedly causing a magnetic repelling and attracting action as each portion of the suppressor is repeatedly moved into alignment between like poles of the magnets. The magnetically permeable portion is comprised of a plurality of magnetically permeable sheets interleaved with thin layers of a non-magnetic material. During the attracting action the magnetic flux lines of each magnet are conducted within a confined pathway by the sheets as they are directed therethrough between the magnet poles. The motor may be constructed for both reciprocating and rotary operation.

Abstract: A magnetic particle device such as a magnetic particle brake in which the flux producing means are mounted in a stationary member, said device having improved means for dissipating heat, improved means for locating the heat sensitive members including the bearing members relatively remote from the region where most of the heat is generated, the rotatable portions of the subject devices being mounted between stationary portions thereof, and means forming an improved magnetic gap construction for such devices. The device may also include improved means for circulating a liquid coolant from an external source through stationary portions of the device and simplified relatively trouble free means for making the electrical connections to the flux producing means.

Abstract: The electromagnetic winding is made up of a plurality of insulated coils which are formed by a wound-up sheet metal strip. The strip is of a material having high magnetic permeability so that the coils eliminate the need for a magnetic core. The coils can be insulated from each other by a wound strip of insulating material such as paper or by means of a synthetic lacquer.The electromagnetic coupler can be of the synchronous or asynchronous type and can be in the form of a clutch or brake.

Abstract: In a magnetic transmission device a torque magnetic ring having an even number of axially aligned bars of highly magnetic material is rotatable mounted relative to at least one of two magnetic pole rings for transmitting torque between the pole rings.

Abstract: A permanent magnet motor which generates mechanical output power by the repulsion forces between a movable permanent magnet and a fixed permanent magnet. A movable magnetic shield is interposed between the magnets when they are adjacent one another and then the shield is moved to expose the fixed magnet as the movable magnet passes by. A second fixed magnet can be added to increase the output power by attracting the movable magnet as it approaches. The movable magnetic shield is interposed between the movable magnet and the second fixed magnet when they are adjacent one another.

Abstract: An electric motor is composed of two counter-rotating discs having intermeshing gearing and each carrying a plurality of permanent magnets radially arranged with the same poles at the periphery of both discs. A shield of magnetic material is provided at one side extending partly around the periphery of each of the discs and into substantially the bite of the discs. An electromagnetic is arranged with one pole adjacent the bite of the discs, with means to energize the electromagnet as each of the permanent magnets reaches the bite of the discs to create a field of such polarity as to make the magnetic poles of the adjacent permanent magnets move away from the bite of the discs in the direction away from the shield, utilizing the combined forces of the electromagnetic force and the repelling force of the permanent magnets to effect rotation.