Abstract: A brushless commutated torque motor suitable for use with a rotary low frequency sound reproducing apparatus, includes a shaft having a longitudinal axis, a position sensor, a rotor having a plurality of permanently magnetized rotor pole sectors, the rotor being mounted for rotation upon the shaft, and a stator having a plurality of stator poles and stator winding slots disposed alternately therein, the stator slots having stator windings therein driven by individual power amplifiers in response to a control signal, the stator having commutation between stator windings controlled by sensing of rotor angular position by the position sensor, with each rotor pole sector being configured and disposed such that a plurality of stator poles are axially adjacent to each rotor pole sector and each rotor pole sector is angularly separated from adjacent rotor pole sectors by a selective number of stator poles.

Abstract: An air compressor system having an unloader valve which is directly mechanically activated by an air compressor motor's centrifugal mechanism to allow the motor to reach a predetermined speed before a load is applied is disclosed. The unloader valve is mounted directly on an end flange of the motor and communicates with an outlet conduit of the air compressor to allow the compressed air from the air compressor to vent to atmosphere until the motor reaches the predetermined speed.

Abstract: An air switch assembly for an electric motor including a first snap action switch, a second snap action switch, and an actuator, is described. The first snap action switch is connected to the motor start winding and the second snap action switch is connected to the run winding. An actuator is positioned within the air switch assembly such that the air switch energizes the start winding, energizes the run winding, and de-energizes the start winding while maintaining the run winding energized when the actuator is actuated from an initial position to a final position.

Abstract: The invention relates to a motor which comprises a drive system which has a stator (10) and a rotor (14), and a control system which controls the drive system and has circuit boards (21), (22), both being housed in a casing (2), wherein the casing (2) has a first conductive pin (25) for flowing a current to input power to the control system and a second conductive pin (26) for flowing a current to output from the control system to respective phases of a coil, and the circuit boards are supported by the first and second conductive pins. And, the invention relates to a method of manufacturing a motor which comprises the steps of using a first die (101) and a second die (102) which are mutually connected with a die split face (104) therebetween and a third die (103) which is inserted in the middle of the first and second dies, inserting and fixing a motor stator, a metallic cylinder and embedding members into a cavity formed by the first, second and third dies, and pouring a molten resin to effect resin molding.

Abstract: Systems and apparatus for integrating an air switch and a power cord into an electric motor, and methods for assembling an electric motor including an integral air switch and an integral power cord, are described. In one embodiment, an air switch and a power cord are incorporated into an electric motor. No additional removable cover is required for the switch and cord. To eliminate the motor centrifugal switch, an air switch is provided to control energization and de-energization of the motor windings. The air switch includes a snap action switch to cut-out the start winding used for ensuring that the rotor has sufficient starting torque.

Abstract: An electrochemical radial cell engine comprising an engine block, a motor supported by the engine block, at least one electrochemical reaction cell including a rotatable enclosure containing a source of anode material, preferably in the form of a multiplicity of anode particles, a fluid electrolyte, a cathode surrounding and radially spaced from the rotatable enclosure and means for rotating the rotatable enclosure in response to rotation of the motor. The enclosure should preferably be represented by a perforated cage having a mesh size large enough to pass fluid electrolyte. Rotation of the cage causes the anode particles to be compressed by centripetal forces which act upon the particles as the cage spins. This maximizes the operating efficiency of the electrochemical reaction cell(s) providing enhanced power for driving the engine.

Abstract: A high speed electric toy vehicle having a high current rating electric motor is provided with a fail-safe mechanism which would promptly operate to cut off motor power supply before the battery is burnt or the vehicle housing is melted as a result of over-current developed across an electric motor due to locking of rotary shaft under operating conditions. The fail-safe mechanism operates by detecting the presence or absence of motor motion as indicated by a motion tag which are attached to a part of the vehicle which always moves in response to movement of the motor shaft. The mechanism will cut off supply to the motor when no motion has been detected for a pre-determined time period.

Abstract: A correcting signal generator 42 stores the quantitative relation of the magnetic interference between the rotation angle .theta.3 of a resolver 23 and the detected values A3, B3 of a resolver 22, and outputs the correcting values A8, B8 for the magnetic interference according to the rotation angle .theta.3. An adder 41 calculates and outputs the corrected detection values A4, B4 by adding the correcting values A8, B8 to the detected values A3, B3 of the resolver 22 output from a latch circuit 14. A resolver rotation angle calculation circuit 47 calculates and outputs an angle .theta.2 by taking an arc tangent of the quotient A4/B4 of the corrected detection values A4, B4. In the same way, a correcting signal generator 44 calculates and outputs the angle .theta.3.

Abstract: Apparatus for the bidirectional transfer of information comprises in each case: at least one rotating component (1); a further component (2); receivers (4, 5) on the respective components (1, 2), said receivers facing one another in groups on the axis of rotation (6) of the rotating component (1); and transmitters (7, 8) fitted on the components (1, 2) eccentrically with regard to the axis of rotation and directed towards the corresponding receivers (4, 5).

Abstract: Systems and apparatus for integrating an air switch and a power cord into an electric motor, and methods for assembling an electric motor including an integral air switch and an integral power cord, are described. In one embodiment, an air switch and a power cord are incorporated into an electric motor. No additional removable cover is required for the switch and cord. To eliminate the motor centrifugal switch, an air switch is provided to control energization and de-energization of the motor windings. The air switch includes a snap action switch to cut-out the start winding used for ensuring that the rotor has sufficient starting torque.

Abstract: A motor termination board is disclosed for facilitating interconnection of control components and power components in a Brushless DC motor. The motor termination board includes a first stamping having a plurality of conductive paths, where the first stamping includes a plurality of connection points for receiving leads from control components and a plurality of control terminals for connecting the motor termination board to an electronic control of the motor. A second stamping is positioned adjacent the first conductive stamping and also has a plurality of conductive paths, where the second stamping includes a plurality of connection points for receiving leads from windings of the motor and a plurality of power terminals for connecting the motor termination board to a power supply for the motor. A termination board housing is provided for encapsulating the conductive paths of the first and second stampings and includes a first socket around the control terminals and a second socket around the power terminals.

Abstract: A single-phase switched reluctance motor is disclosed. The motor includes a stator having a plurality of projecting poles and a rotor rotatably disposed adjacent to the stator. The stator and rotor poles may be formed from laminations of ferromagnetic material. Energizing coils are wound around one or more of the stator poles. When the coils are energized, the rotor develops torque. In one embodiment, the motor includes a motor starting mechanism which sets the rotor into motion before the stator coils are energized so that the rotor is never static in a preferred position. In another embodiment, the motor includes a rotor positioning mechanism which positions the rotor in a preferred starting position before the stator coils are energized.

Abstract: A high starting torque induction motor with simultaneously reduced starting current adapted to be associated with a drive having a high load torque on starting that includes a stator, a rotor, a first end ring fixed on said rotor, a second movable end ring associated with said rotor and having a lower electrical resistance than the first ring, and a centrifugal device associated with the second ring and operable upon the rotation of the rotor at a predetermined speed such that, when the motor is electrically energized, the high resistance of the first ring produces a high starting torque at reduced starting current, and when the motor achieves a predetermined speed, the second ring is moved into engagement with the first ring reducing the effective resistance and permitting normal operation of the electric motor.

Abstract: A switch lever for use with a centrifugal starting switch of an electric motor. The starting switch has at least one switch contact which is moveable, in response to axial movement of a centrifugal actuator, between a start position in which a starting winding of the motor is energized and a run position in which the starting winding is de-energized. The switch lever of the present invention operatively connects the switch contact with the centrifugal actuator for movement in response thereto. The switch lever has a cam follower at one end which is engageable with an annular actuator collar of the centrifugal actuator. The cam follower includes a contoured rear cam face which prevents the cam follower from becoming "stuck" behind a flat rear surface of the actuator collar during assembly or operation of the motor.

Abstract: A dynamoelectric machine of the present invention includes a stator, a rotor journaled with respect to the stator, and a rotor shaft having a longitudinal axis extending axially from said rotor. An auxiliary winding and a starting switch operable to de-energize said auxiliary winding upon the motor obtaining a predetermined speed is provided. A centrifugal actuator is mounted on the rotor shaft to actuate the starter switch to de-energize the starter windings when the rotor obtains a predetermined speed. The rotor shaft has a single wide groove formed thereon and the actuator has a sleeve which is journaled on the rotor shaft. The sleeve has an inwardly directed projection sized and shaped to fit in the shaft groove. The sleeve projection and shaft groove interact such that the actuator sleeve cannot be moved relative to the shaft and the switch without a great deal of force.

Abstract: A fastener applicator, for example for cable clips, uses the kinetic energy of a flywheel rotated by a prime mover, preferably a battery driven electric motor, to drive a striker for firing a fastener into a support. An actuator which strikes the striker may be a fixed projection on the flywheel or be an element on the flywheel movable relative to the flywheel by centrifugal force to project the actuator from an inoperative position to an operative position for striking the striker. The drive from the prime mover to the flywheel is through a clutch or releasable drive coupling which temporarily disconnects the drive when the actuator strikes the striker so that the kinetic energy at the flywheel alone drives the striker and the prime mover is protected from the impact. A micro-processor measures the rotational speed of the flywheel and stops the prime mover when a pre-determined speed for the necessary kinetic energy is achieved.

Abstract: The sensitivity of an induction-type motion sensor having a magnetic circuit with a permanent magnet to small movements is increased by the use of a stator with a core containing a permanent magnet as a fixed part thereof. An electrical coil is wound around the stator and a pendulum-type rotor has a ferromagnetic moving element which, when the motion sensor is subjected to movement forces, passes in and out of the air gap of the stator, thereby alternating the magnetic field in the stator and inducing a current in the electrical coil.

Abstract: A centrifugal switch assembly for a single phase induction motor connecting a start winding and/or start capacitors in circuit. A centrifugal actuator positions a contact unit on a cantilevered spring arm relative to an aligned fixed contact unit. Each contact unit is identically constructed with a cylindrical steel base and an outer contact button which defines a radial lip. A silicone rubber boot in the form of a tubular member having similar thick end hubs connected by a thin-wall convolution between the hubs to establish a flexible enclosure. The hubs are telescoped respectively over the contact bases with the same interference fit to totally enclose the contact units. The lips of the contact buttons lock the boot to the contact units. The boot length is greater than the spacing of the open contact units and the convolution is continuously deflected to create a closing force.

Abstract: A centrifugal actuator for mounting on a rotor shaft, the actuator being capable of movement from a first or start position to a second or run position, is provided having a base portion with a pair of opposed, mirror image actuator levers biased towards the first position. The levers are urged to the second position by centrifugal force when the shaft rotates. The levers are cooperatively connected to a sleeve, the sleeve being capable of axial movement allowing the sleeve to move from the first to second position in response to the movement of the levers. The sleeve has a collar and a shoulder portion for the seating of the actuator levers. Unique ramp structures extending from the sleeve collar to the seats on the shoulder cause the actuator levers to seat properly during assembly thereby allowing automated assembly and preventing field failure due to misseating of the actuator arms.

Abstract: An electrical actuator for actuating a valve or other device includes an electrical motor rotating a rotary member and centrifugal body. The centrifugal body is mounted to the rotary member and is biased to normally assume an inner position with respect to the rotary axis of the rotary member, and to move to an outer position by centrifugal force when the rotary member rotates. An actuator pin is normally biased to a non-actuating position but is movable to an actuating position, to actuate a valve or other device, when the centrifugal body is moved to its outer position by centrifugal force upon the rotation of the rotary member by the electric motor.

Abstract: A centrifugal switch assembly for a single phase induction motor connects a start winding and/or start capacitors in circuit. A centrifugal actuator positions a contact unit on a cantilevered spring arm relative to an aligned fixed contact unit. Each contact unit is identically constructed with a cylindrical steel base and an outer contact button which defines a radial lip. A silicone rubber boot in the form of a tubular member having similar thick end hubs connected by a thin-wall convolution between the hubs to establish a flexible enclosure. The hubs are telescoped respectively over the contact bases with the same interference fit to totally enclose the contact units. The lips of the contact buttons lock the boot to the contact units. The boot length is greater than the spacing of the open contact units and the convolution is continuously deflected to create a closing force.

Abstract: An electric motor comprising a main frame having an en and an interior, a stator supported within the main frame, an end frame supported within the main frame and spaced from the end of the main frame so as to divide the interior of the main frame into a motor compartment containing the stator and an equipment compartment between the end frame and the end of the main frame, a bearing supported by the end frame, a rotor shaft rotatably supported by the bearing, a rotor located radially inwardly of the stator and mounted on the shaft for rotation therewith, a modularized apparatus platform which is located within the equipment compartment, and which includes a generally cup-shaped portion that opens in the direction away from the end frame and that has an inner surface defining a control chamber, an electrical component supported by the platform and located within the control chamber, and a cap which is fixed to the apparatus platform and which closes the control chamber.

Abstract: A brush and slip ring apparatus for an alternating current generator. A brush assembly is secured to a rotor shaft of the generator to rotate therewith. The brush assembly includes two axially spaced brushes that are pivoted to a brush support that is secured to the shaft. When the shaft is rotated, the brushes move outwardly away from the shaft due to centrifugal force. The brushes respectively engage two axially spaced fixed slip rings that surround the brush assembly. The brushes are maintained engaged with the slip rings due to centrifugal forces developed by the pivotally mounted brushes. The brushes are connected to a field coil of the rotor of the generator.

Abstract: A displacement control motor provided with a continuously rotary shaft and a reel capable of changing deflection angle according to the rotary speed of the motor whereby other articles can be carried, driven, or controlled via the reel; the motor including a concealed motor, a driving gear, a driven gear, a reel shaft seat and a load device, wherein the rotary shaft is connecded with the driving gear while the driven gear meshes with the driving gear, the driving and driven gears being both pivoted to the shaft seat and the driven gear being linked with the load device, whereby the rotary shafts of the driving and driven gears are located on the same shaft seat and the driven gear is additionally loaded by the load device and a balance spring is used to restrict the displacement of the driven gear so that by means of the change of rotary speed of the rotary shaft, the deflection magnitude of the reel can be controlled.

Abstract: A centrifugal actuator assembly adapted to be mounted on a rotatable shaft, the assembly including actuating levers responsive to the rotational speed of the shaft, guide means to guide the levers in a predetermined inward and outward path during movement between first and second spaced positions and positive positioning and limiting structure cooperative with the levers to positively position the levers for actuating operation and to limit their movement in the event of departure from such predetermined positively positioned path at both first and second spaced positions.

Abstract: A self-powered back-up alarm for mounting to the wheel hub of a heavy truck or like vehicle. The alarm includes a housing adapted to be mounted to a vehicle wheel hub. Inside the housing is a magnetized stator that is held stable by a counterweight mounted for free rotation to a spindle in the housing. Also mounted in the housing is a power supply including a coil positioned adjacent the stator in the housing and attached thereto so that it rotates about the stator when the wheel hub turns. A battery stores the energy developed across the coil when the wheel hub rotates. Also mounted inside the housing are sensors located adjacent the stator that similarly rotate with the wheel hub. The sensors, in combination with an associated detect circuit, produce a reverse motion signal whenever the vehicle backs up. An audio alarm, located in the housing, is actuated by the reverse motion signal and emits an audible warning whenever the vehicle backs up.

Abstract: A dynamoelectric machine has a housing, a terminal board and a stationary assembly including a winding with a set of leads. The terminal board has a pair of opposite faces with a peripheral portion therebetween and a set of separate recesses in the peripheral portion. The recesses define with the housing a set of separate passages for receiving at least the winding leads.

Abstract: A dynamoelectric machine has a stationary assembly with a winding thereon, and a rotatable assembly is supported by the stationary assembly and associated in magnetic coupling relation with the winding. A switch and terminal assembly is mounted to the stationary assembly, and a centrifugal device is conjointly rotatable with the rotatable assembly for operating the switch and terminal assembly to control the energization of the winding.

Abstract: A magnetic actuator for controlling the electrical induction in a pickup coil to a predetermined speed of rotation of a workpiece actuated shaft consisting of a series of magnets in a fixed circular relationship to a rotating shaft and a complimentary series of magnets positioned on the first series and magnetically retained thereon, a series pickup coil also circularly posiitoned relative to the rotating shaft but of a greater diameter than the ring formed by the magnets, and upon the rotation of the shaft workpiece, the magnets with continue to the attracted; as the rotation increases the centrifugal force of rotation increases and as the speed of rotation attains a given speed, the centrifugal force exceeds the magnetic attraction between the two series of magnets; at this speed the second series of magnets will move outwardly from the rotating shaft; the mgneticfield of the moved magnets become vertically aligned with the series pickup coil and wherein the magnetic-field induces an electrical potential in

Abstract: A switch assembly for selectively engaging and disengaging contacts connected to electrical machinery such as the windings for an electric motor including a pair of conductive members having insulated base portions and flexible cantilevered portions extending outwardly therefrom, each carrying one of a pair of spaced opposed electrical contacts, with one cantilevered portion of the conductive members being shorter and stiffer than the other to enhance rolling wipe-action of the pair of contacts when engaged.

Abstract: The centrifuge has a drive rotating a rotor whose position relative to the vertical axis of the centrifuge is monitored by an unbalance sensor located on the installation plate which is accommodated in a recess of the ring in a plane perpendicular to the vertical axis. The ring is installed on the mounting surface of the drive casing with a provision for being moved and set relative to said surface so that the plane of the ring is constantly parallel with the lower surface of the rotor. The installation plate has a hollow for accommodating the unbalance sensor, the shape of the surface of said hollow being mutually complementary with the shape of the mounting surface of the drive casing and the installation plate is located in said ring with a provision for moving in said plane perpendicular to the vertical axis.

Abstract: A governor and motor assembly of a fractional horsepower electric motor adapted to control the efficient operation of the motor utilizing simple structural components. The governor is responsive to the centrifugal forces of the rotating rotor shaft of the motor and is attached to the end thereof. The governor includes a carrier plate affixed to the shaft and a pivotable lever mounted within a groove in the carrier plate. A first end of the pivotable lever is connected to the carrier plate by an extension spring which acts to move the lever to its at rest or actuated position. As a predetermined rotational velocity is reached, the lever pivots at the groove to pivot away from the electrical switch aligned axially with the rotor shaft. The electrical switch, in turn, is mounted to a terminal board fixedly mounted to the motor housing to thereby positionally maintain the governor on the motor shaft as well as retain the associated capacitor.

Abstract: A centrifugal switch assembly for a single phase induction motor connects a start winding in circuit to start the motor. A centrifugal actuator positions a movable contact on the end of a cantilevered spring arm relative to an aligned fixed switch carried by an insulating flat plate secured within the motor. A silicone rubber boot in the form of a tubular member has a first heavy end telescoped over the movable contact with a resilient gripping of the side of the contact. The opposite end of the boot is a heavy end which is freely telescoped over the opposite contact into engagement with the flat plate to totally enclose the contacts, but may also be attached to the contact with a resilient grip. The boot has an intermediate convolution between the two ends. The convolution is formed as a very thin wall to establish a highly flexible but supporting wall member.

Abstract: A switch assembly for use with a centrifugal actuator in the start winding circuit of a dynamoelectric machine (1). The switch has a pair of electrical contacts (29, 33) contained in a pliable, bellows-like enclosure (37) for protection from foreign matter. The assembly includes a terminal board (19) having an electrically conductive post (28) mounted thereon and comprising one side of the switch. A second contact, comprising the other side of the switch, is directly above the first and is surrounded by an electrically conductive cap (32). The cap is affixed between the ends of an electrically conductive, cantilevered switch arm (16) which is biased against a vertically rigid, horizontally adjustable stop (45). The stop has one end rigidly mounted to the terminal board and its other end above and in contact with the switch arm where the cap is affixed to the arm. The bias is caused by the switch arm support structure at the fixed end being attached to the terminal board at an angle.

Abstract: An alternator or synchronous generator, principally for supplying electrical current to batteries and other apparatus in cars, ships, aeroplanes and other devices for transport. The alternator consists primarily of a hollow stator with windings of which the inner shell is conical, a rotor with a conical outer shell which operates in conjunction with the conical inner shell of the stator, a shaft which rotates in the housing of the alternator, a slide between the shaft and the rotor for the axial motion of the rotor over the shaft and in the stator for the purpose of current control, a device for sliding the rotor over the shaft into the stator, a device for sliding the rotor over the shaft out of the stator, and, on the rotating shaft a centrifugal voltage controller for fine-adjusting the means which slides the rotor out of the stator and keeps the induced current voltage the same.

Abstract: An electric generator organization, particularly adapted for small vehicles such as motorcycles, is described in which a rectifier mechanism electrically disposed between the stator and the rotor is mechanically connected to the rotor for rotation therewith during engine startup and disconnected therefrom during periods of normal engine operation. An operating circuit enables efficient transmission of electric current from the battery to starting coils in the generator only during the period of engine startup. During periods of normal engine operation, the transmission of electric current is from generating coils in the generator to the battery. Included in the operating circuit is an engine operation detector that prevents excessive current feed from the generator coils to the rectifier mechanism.

Abstract: An auxiliary winding cut-out switch for a sump pump motor having main windings and auxiliary windings. Controlled deflection means for positioning a contact carried on a terminal movable arm with respect to a fixed contact comprises a plunger, actuator, removable coil compression return spring and removable coil compression take-up spring, all concentric and colinear. The plunger slides in housing guide means and has a follower portion for following contact with a control surface carried on the motor rotor and axially movable responsive to rotor speed. The actuator slides in the housing guide means and has an offset coupler engaging the terminal movable arm. The take-up spring is seated between plunger and actuator; the return spring is seated between housing cover and actuator. The springs are electrically unconnected to the terminals.

Abstract: A governor and motor assembly of a fractional horsepower electric motor adapted to control the efficient operation of the motor utilizing simple structural components. The governor is responsive to the centrifugal forces of the rotating rotor shaft of the motor and is attached to the end thereof. The governor includes a carrier plate affixed to the shaft and a pivotable lever mounted within a groove in the carrier plate. A first end of the pivotable lever is connected to the carrier plate by an extension spring which acts to move the lever to its at rest or actuated position. As a predetermined rotational velocity is reached, the lever pivots at the groove to pivot away from the electrical switch aligned axially with the rotor shaft. The electrical switch, in turn, is mounted to a terminal board fixedly mounted to the motor housing to thereby positionally maintain the governor on the motor shaft as well as retain the associated capacitor.

Abstract: When operating a synchronous machine as a synchronous generator, a suppression resistor is required across the main generator field. However when operating the synchronous machine as an induction motor, a current is induced in the main generator field which is typically greater than the current carrying capability of the suppression resistor.In order to overcome the foregoing problem, the present invention provides a centrifugally activated switch for mounting on a rotor and which provides an alternate current path for the induced current.

Abstract: A noise suppression circuit is provided for capacitor-start and capacitor-run alternating current motors. To prevent rotor chattering and noise from occurring upon disconnection of power from the motor, separate switches are used to connect alternating current power to the windings and to the capacitor; so that when power is disconnected, the capacitor is prevented from discharging into the motor windings. A power dissipation resistor is connected in parallel with the capacitor to permit the capacitor to discharge.

Abstract: In an electric motor including a rotor on which is mounted a blower and a centrifugal actuator having spring-loaded lever members projecting through a centrally disposed recess in the spaced radial blade carrying back plate of the blower, an improved cover assembly arranged to be mounted on the rotor in interfitting relation with the spaced radial blades of the blower to cover the centrally disposed recess preventing contaminant build-up on the centrifugal actuator.

Abstract: A miniature generator includes a cup-shaped supporting shell for fixing a yoke assembly, which supporting shell includes a bearing for a rotary shaft of a permanent magnet rotor. The rotary shaft of the rotor is provided with a worm which drives a worm gear engaging with it.

Abstract: A noise suppression circuit is provided for an alternating current motor which has a capacitor connected in parallel with one of the windings to form an LC resonant circuit at the operating frequency of the motor. The motor includes first and second windings of substantially the same wire size connected in series on the stator core. The LC resonant circuit formed by the capacitor and the winding across which it is connected improves the efficiency of operation of the motor. To prevent chattering and noise from occuring upon disconnection of power from the windings, separate switches are used for applying alternating current power to the windings and to the capacitor; so that when power is disconnected, the capacitor is isolated from the winding across which it is connected. At the same time, a power dissipation resistor connected in parallel with the capacitor permits it to discharge.

Abstract: Motor has outboard switch compartment with components therein such as a capacitor, thermal protector, terminal board, motor circuit controlling switch assembly, a manual switch, a thermal plastic molded cover for the compartment fastened with axially directed screws, and an optional rain shroud positively positioned on the end shield. The switch assembly is designed to have accurate contact alignment which will be maintained over the life of the switch; a wiping action of the contacts; a high amount of contact travel in terms of percentage of switch actuator travel; protected contact blade arms; and a multiple height mounting feature which assures a more optimum location of the switch at final assembly with respect to the location of the switch operating mechnism. Switch arms are essentially parallel and have contacts positioned directly in line with the actuating line of a switch actuator and an operating mechanism.

Abstract: The invention is directed to a rotational speed sensing switch which provides a variable linear displacement of an output member in response to a varying speed rotational input. The switch includes a sensing means, which includes a rotatable rolling element-and-ramp assembly, acting in cooperation with a signaling means which includes an axially movable actuating disc, an output member comprising a switch rod, and a biasing means. The aforementioned improvement over the prior art comprises a regulating means included within the sensing means.

Abstract: A shaded pole induction motor includes a plurality of series-connected running windings and a plurality of series-connected shaded pole coils (windings). A normally closed, centrifugal-force-responsive switch is provided in series with the shaded pole coils to effect an interruption in current therethrough when the motor reaches a predetermined speed. As a replacement to the normally closed switch, a switch constituted by a relay winding and normally open relay contacts may be provided, the contacts being in series with the shaded pole coils, these normally open contacts being closed in response to high initial starting current in the running windings flowing through a relay winding and being opened again when the motor gets up to a predetermined speed; less current flows in the relay winding and in the running windings under this condition. A heat-responsive circuit breaker may be placed in series with the normally open contacts or centrifugal-force responsive switch.

Abstract: A starting switch assembly integrally formed with a terminal connection board designed to selectively engage and disengage contacts for electrical machinery such as the windings for a dynamoelectric machine, the switch assembly including opposed contacts shaped and movable relative each other to provide rolling wipe-action contacting motion when actuated into contacting engagement to minimize contact wear, the contacts being yieldingly and resiliently maintained in selected engagement when so actuated to accommodate for machinery impact and vibration.

Abstract: An electric current motor is operated from a single phase of alternating current power source, and functions with low surge operation at motor start. The motor includes first and second windings of substantially the same wire size angularly displaced from one another 90.degree. electrical on a stator core and inductively coupled to a rotor. A capacitor is connected in parallel with one of the windings to form an LC resonant circuit at the operating frequency of the motor. A second starting capacitor is connected in series with a switch in parallel with the first capacitor. The switch is normally closed during starting of the motor and is opened during normal load conditions.

Abstract: A switch assembly integrally formed with a terminal connection board for selectively engaging and disengaging contacts connected to electrical machinery such as the windings for a dynamoelectric machine, the switch assembly including opposed contacts shaped and movable relative each other to provide rolling wipe-action contact wear, one of the contacts being mounted on a flat conductive member having an arm portion extending laterally to one side thereof which is engaged by and is actuable by a switch arm mounted on the terminal board.

Abstract: A single phase induction motor starting and automatic reversing switch has two pairs of springy vertically spaced apart switch blades supported in opposed cantilever fashion on an insulating base. Each pair consists of an upper blade and a lower blade. A nominally stationary contact is mounted in spaced relation above each upper blade and below each lower blade. Opposite ends of the motor starting winding are connected in common between the upper and lower stationary contacts. A shaft of insulating material with a lever at one end operates the switch. The shaft extends between the vertically spaced apart blade pairs and has axially displaced oppositely radially extending arms, one between one pair of blades and the other between the other set of blades. Turning the operator shaft in a first direction causes one arm to press a blade against one upper stationary contact and the other arm to press a blade against one lower contact.