Abstract: A system and method of measuring a temperature including applying a first set of voltages across a circuit in sequence; detecting a second set of voltages corresponding to the first set of voltages, wherein the second set of voltages includes a first detected voltage, a second detected voltage, and a third detected voltage, wherein the first applied voltage corresponds to the first detected voltage, the second applied voltage corresponds to the second detected voltage, and a third applied voltage corresponds to the third detected voltage; modifying an output of a heater proximate to the diode within the circuit, wherein a combined heat dissipation of the heater and the diode remains constant during operation of the circuit; and determining a temperature proximate to the diode based on the first set of voltages and the second set of voltages.

Abstract: A tensioning mechanism for tensioning a pre-loaded spring of a spring-loaded accumulator drive. The tensioning mechanism includes a tensioning wheel coupled to the pre-loaded spring, an intermediate shaft coupled to the tensioning wheel, an idler gear that can be driven by a clamping motor, a freewheel coupled to the idler gear, a locking mechanism for detachably locking the tensioning wheel in a tensioned state of the pre-loaded spring, and a dog clutch configured to couple the freewheel to the intermediate shaft in order to tension the pre-loaded spring and to uncouple same from the intermediate shaft in the tensioned state of the pre-loaded spring.

Abstract: The present invention provides for a protective enclosure comprising a base comprising a first continuous mating surface and at least one conveyance aperture, a cover comprising a second continuous mating surface, wherein the second continuous mating surface is configured to form a seal with the first continuous mating surface, and a clamp, wherein at least a portion of the clamp is coupleable to the base, wherein a mouth of the clamp is configured to be offset from the aperture when the clamp is coupled to the base, wherein the clamp comprises a first sealing layer, and wherein the clamp is configured to seal the aperture against contaminants. The protective enclosure may be configured for use in a remotely controllable model vehicle to protect a control module.

Abstract: The present invention provides for a protective enclosure comprising a base comprising a first continuous mating surface and at least one conveyance aperture, a cover comprising a second continuous mating surface, wherein the second continuous mating surface is configured to form a seal with the first continuous mating surface, and a clamp, wherein at least a portion of the clamp is coupleable to the base, wherein a mouth of the clamp is configured to be offset from the aperture when the clamp is coupled to the base, wherein the clamp comprises a first sealing layer, and wherein the clamp is configured to seal the aperture against contaminants. The protective enclosure may be configured for use in a remotely controllable model vehicle to protect a control module.

Abstract: A power-generating module has a base, a power-generating unit that is placed in the base, a plunger that is placed in the base and that vertically reciprocates, and a drive section that interlocks with the reciprocation of the plunger and starts up the power-generating unit. The drive section is biased to a boost-up position where the plunger is boosted up. The drive section has at least two links that turn between the boost-up position and a press-in position where the power-generating unit is started up. Both ends of one of the links are turnably supported by the base. Both ends of another link are turnably supported by the plunger. The links turn in an interlocking manner by coupling to each other.

Abstract: The invention relates to a spring controller for high- or medium-voltage electric switchgear, the controller having a free-wheel coupling device between a crank handle or a motor and the drive shaft (1) for driving a switch contact of the switchgear and respectively providing coupling while the spring(s) (11) is/are being loaded and decoupling while the spring(s) is/are being released. The free-wheel mechanical device is incorporated in a toothed wheel (2) of the controller and includes at least one pawl (7, 70) meshing or not meshing with an inner set of teeth (4) of the toothed wheel (2).

Abstract: A connector system including a sensing mechanism that can be used to control signal distribution through the connector system is disclosed. The connector system may include a first connector and a second connector configured to be operatively engaged in both a mated condition and an interlocked condition. The connectors of the connector system include conductive contacts that complete a conductive connection when the connectors are in the mated condition. The connector system includes a fastening mechanism that provides an interlocked condition following mating of the connectors, and may further include a sensor and a sensor trigger that may be used to sense the connection status of the system. The sensor may connected to a controller, with the controller controlling signal distribution through the connector system dependent on the connection status determined by the sensing mechanism. A method for controlling signal distribution through a connector system is also provided.

Abstract: A battery module that includes a plurality of electrochemical cells. Each of the electrochemical cells has a first end including at least one terminal and a second end having a vent. The plurality of electrochemical cells are arranged such that the second ends of a first set of the plurality of electrochemical cells face the second ends of a second set of the plurality of electrochemical cells. A central chamber is located between the second ends of the first set of the plurality of electrochemical cells and the second ends of the second set of the plurality of electrochemical cells. The central chamber is configured to receive gases released from the vents of the plurality of electrochemical cells.

Abstract: A power generation apparatus includes an operation member that has a first operation part or a second operation part operated upon power generation; a power generation part that generates an induced electromotive force upon being driven by a slide member that moves in a first direction or a second direction; first and second elastic units that accumulate an elastic force; a first connection release mechanism that prompts the first elastic unit to accumulate elastic force when the first operation part is operated and allows the elastic force to be output to move the slide member in the second direction when accumulation is completed; and a second connection release mechanism that prompts the second elastic unit to accumulate the elastic force when the second operation part is operated and allows the elastic force to be output to move the slide member in the first direction when accumulation is completed.

Abstract: A switching device assembly has an encapsulation housing. Movable active conductors are located inside the encapsulation housing. A drive unit with a gearbox is located outside of the encapsulation housing. The gearbox is part of a kinematic chain for moving an active conductor. The kinematic chain penetrates the encapsulation housing. In order to reverse the direction of a movement of the gearbox that can be transmitted, the gearbox is turned around a reversing axis and coupled into the kinematic chain.

Abstract: A motor operator for switchgear (1) for use in mains power distribution systems such as public medium high voltage distribution systems, where the switchgear comprises a closed cabinet (2) with an operating shaft (6) accessible from the front surface (4). The operating shaft is rotatable at least between two positions and has, a coupling part. The motor operator comprises a worm gear in a separate worm gear housing (11), which is mountable on the external surface of the switchgear cabinet. An adapter (21) with a connection shaft (22) is located in a recess in the worm wheel (16). The worm of the worm gear is connected to a motor which could be located remotely from the worm gear housing and connected to the worm preferably by means of a flexible shaft (15). This renders it possible to mount the motor operator in confined spaces.

Abstract: A Medium Voltage circuit breaker which comprises a pole assembly having, for each phase, a first fixed contact and a second movable contact reciprocally couplable/uncouplable between an open and close position. The circuit breaker further comprises an actuator to actuate the opening and closing operation of said circuit breaker, and a kinematic chain operatively connecting said actuator to said movable contact. The kinematic chain comprises a sliding element operatively connected to said actuator, said sliding element having a first sliding surface operatively coupled to said movable contact and being movable between a first, open, position and a second, closed, position.

Abstract: The present invention is directed to a switch device that includes an actuator guide coupled to the switch actuator plate. The perimeter wall of the guide is disposed within the back body member in a nesting arrangement such that the actuator guide is configured to slide within the back body member in a substantially linear motion between a non-switch actuating position and a switch actuating position. The perimeter wall forms a contaminant shield to substantially prevent dust external to the device from contaminating the plurality of guide portions. A transmission mechanism is coupled to the actuator guide and configured to convert the linear motion of the actuator guide into a rotational movement when the switch actuator plate is depressed. A mechanical switch mechanism is configured to move between a first switch state and a second switch state in response to the rotational movement of the transmission mechanism.

Abstract: A service disconnect assembly for a battery assembly includes a receiver configured to hold terminals of a power circuit of the battery assembly and a service disconnect removably coupled to the receiver. The service disconnect has a hub rotatably coupled to the receiver that holds a terminal interconnect configured to electrically connect the terminals together. The service disconnect is removable from the receiver to disconnect the terminals from one another. Rotating the hub in a first direction drives the terminal interconnect into engagement with the terminals and rotating the hub in a second direction opposite to the first direction releases the terminal interconnect from the terminals.

Abstract: A power generation apparatus includes an operation member that has a first operation part or a second operation part operated upon power generation; a power generation part that generates an induced electromotive force upon being driven by a slide member that moves in a first direction or a second direction; first and second elastic units that accumulate an elastic force; a first connection release mechanism that prompts the first elastic unit to accumulate elastic force when the first operation part is operated and allows the elastic force to be output to move the slide member in the second direction when accumulation is completed; and a second connection release mechanism that prompts the second elastic unit to accumulate the elastic force when the second operation part is operated and allows the elastic force to be output to move the slide member in the first direction when accumulation is completed.

Abstract: An actuator according to the present disclosure comprises: a disconnecting switch drive shaft; a first drive gear axially coupled to the drive shaft; a first follower gear in engagement with the first drive gear; a first drive disc having a first drive roller; a first rotary shaft axially supporting the first follower gear and the first drive disc; an earthing switch drive shaft; a second drive gear axially coupled to the earthing switch drive shaft; a second follower gear in engagement with the second drive gear; a second drive disc having a second drive roller; a second rotary shaft; a zeneva disc having a pair of groove portions which the first drive roller or the second drive roller is inserted into or separated from; and a main shaft for switching the disconnecting switch or the earthing switch in accordance with the rotation of the zeneva disc.

Abstract: Provided is a wiper driving apparatus for an automobile. The wiper driving apparatus includes: a housing; a driving motor; a worm wheel installed in the housing to be rotated by the driving motor, connected to a wiper arm, and having protrusions formed on a surface thereof; and a clutch member eccentric with respect to the center of the worm wheel to be rotatably installed in the housing such that power supply to the driving motor is selectively turned on or off according to the position of the rotating clutch member relative to the housing, wherein the clutch member has an engagement unit which is caught by the protrusions of the worm wheel when the worm wheel is rotated in a first direction, and is not caught by the protrusions of the worm wheel when the worm wheel is rotated in a second direction.

Abstract: A miniature intelligent circuit breaker, including a box body, the box body including an upper cover and a bottom box, and a circuit breaker actuating mechanism for switching on/off the circuit breaker, a wire inlet end, and a wire outlet end being arranged in the box body. An automatic closing function part is arranged inside the box body and includes an automatic closing mechanical unit and an automatic closing control unit. The automatic closing mechanical unit includes a motor and an intermediate transmission mechanism. The operation of the motor is realized through the automatic closing control unit. The circuit breaker actuating mechanism is driven to move through the transmission of the intermediate transmission mechanism, such that the closing action of the circuit breaker is ultimately realized.

Abstract: A circuit breaker, including a circuit breaker body, a handle, a bottom box, and a bearing plate. The circuit breaker body includes an upper cover, and a notch groove is formed on the upper cover. Two ends of the notch groove are positioned in the on/off position corresponding to the circuit breaker. The handle extends out of the notch groove. A circuit breaker actuating mechanism, a wire inlet end, and a wire outlet end are arranged on the bottom box. The circuit breaker actuating mechanism is triggered by the handle. The bearing plate is arranged between the upper cover and the bottom box and combined with an electrical operating mechanism. The handle is switched in the on/off state during the operation of the electrical operating mechanism under the control of an automatic closing control unit.

Abstract: A built-in intelligent circuit breaker with an automatic closing function, including a box body and a bearing plate. Inside the box body is provided a circuit breaker actuating mechanism, a wire inlet end, and a wire outlet end. The circuit breaker actuating mechanism is triggered by a poke rod positioned in the box body. The bearing plate is positioned in the box body and combined with an electrical operating mechanism. The electrical operating mechanism is provided with an execution end, and the execution end is connected with the poke rod, such that the circuit breaker actuating mechanism is triggered by the poke rod to realize the on/off of the circuit breaker during the operation of the electrical operating mechanism under the control of an automatic closing control unit.

Abstract: A switching device assembly has an encapsulation housing. Movable active conductors are located inside the encapsulation housing. A drive unit with a gearbox is located outside of the encapsulation housing. The gearbox is part of a kinematic chain for moving an active conductor. The kinematic chain penetrates the encapsulation housing. In order to reverse the direction of a movement of the gearbox that can be transmitted, the gearbox is turned around a reversing axis and coupled into the kinematic chain.

Abstract: A power operator for switchgear (1) for mains power distribution systems, where the switchgear comprises a closed cabinet (5) with an operating shaft protruding there from. The operating shaft is rotable at least between two positions and has a coupling part (2, 3). The operator comprises a housing (10), which is mountable on the external surface (4) of the switchgear housing, and a rotatable connection shaft (14) connected to an electric drive mechanism (11). It has a first coupling part to fit with the coupling part of the operating shaft in a longitudinal axial sliding and non-rotational interlocking manner. The coupling part of the connection shaft (14) is a separate interchangeable part (24, 24a) of the connection shaft attached thereto by non-rotational interlocking means. Further, it has an activation knob (16) extending from the housing (10) to operate the switch manually.

Abstract: A motor operator for switchgear for use in mains power distribution systems comprising a closed cabinet (5) with an operating shaft (53) protruding there from said operating shaft being rotatable at least between two positions and has a coupling part (2). The motor operator (6, 7) comprises a housing mountable on the external surface of the switchgear cabinet. A rotatable connection shaft (51) is connected to an electric motor via a drive mechanism, and has a first coupling part (52) to fit with the coupling part (2) of the switchgear in a non-rotational interlocking manner, and further has a second coupling part (54) extending from the housing to operate the contact of the switch manually and, for which purpose, the motor operator has a release mechanism releasing the connection shaft. The motor and the drive mechanism is designed as an electro-mechanical actuator with a rear mounting (23) for mounting the actuator in the housing of the motor operator and ?.

Abstract: There is obtained an energy storage mechanism, for a switching device, that has a structure requiring no high-accuracy components and can perform release of driving-power transmission and re-engagement.

Abstract: A control device for controlling electrical switchgear such as a circuit breaker or the like includes an actuating arm having a connection point suitable for being moved along a closed line including points P1, P2 and P3. The connection point thus moves during an opening stage for opening the moving contact, under the effect of a mechanical spring from point P1 to point P2. It also moves during a re-cocking stage for re-cocking the mechanical spring under the effect of a motor being switched on, and while keeping the moving contact in the open position, from point P2 to point P3. It also moves during a closure stage for closing the moving contact, also under the effect of the motor being switched on, from point P3 to P1. In this manner it is possible to successively perform three distinct stages of putting the actuating arm in motion, between the instant at which the moving contact leaves its closed position and the instant at which it returns thereto after having occupied its open position.

Abstract: A switching apparatus has a frame with a circular notch in its operating surface; a operating handle disposed in the notch, said handle can change from a lower position corresponding to automatic mode to a upper position corresponding to manual mode, and the handle are rotatable in said circular notch in both positions; and gearing mechanism disposed in the frame, said gearing mechanism comprise a main gear, a clutch gear coupled to a motor, and a switch gear coupled to the main gear. The main gear, the clutch gear and the handle consist of a clutch device, such that in automatic mode the main gear engages the clutch gear and in manual mode the main gear disengaged from the clutch gear. Because the motor is disengaged from the main gear in the manual mode, the rotation of the operating handle will not interact with motor, so avoids possible confliction and resultant damage.

Abstract: A load disconnecting circuit is disclosed with a housing that has a first housing section, which houses the drive, and has a second housing section, which houses a fixed contact element and a longitudinally extended moving contact element. The second housing section has a longitudinal extension adapted to the moving contact element. Field-control rings are placed on the second housing section while encircling it, of which the first are arranged in the vicinity of the fixed contact element and the second are arranged in the vicinity of the switch-off position of the moving contact element. Via a respective connection conductor, the first field-control ring is connected to the potential of the fixed contact element, and the second field-control ring is connected to the potential of the moving contact element when in its switch-off position.

Abstract: A control device, including a transmission shaft adapted to be coupled to an apparatus to be controlled, a driving disk mounted on said transmission shaft to rotate thereon and driven in rotation by a motor unit, a driven disk constrained to rotate with said transmission shaft, and a rotary member carrying at least one indexing means which, due to rotation of said rotary member, can be simultaneously engaged into two respective slots of said two disks for said transmission shaft to be driven in rotation, and can be disengaged from one of said slots for said transmission shaft to be locked against rotation.

Abstract: A switching device is disclosed which includes a working shaft and a control shaft installed in a frame part, the control shaft being rotatable and adapted to turn the working shaft, and the working shaft being adapted to change the position of poles of the switching device. One of the two shafts passes through the other.

Abstract: There is obtained an energy storage mechanism, for a switching device, that has a structure requiring no high-accuracy components and can perform release of driving-power transmission and re-engagement.

Abstract: Improvement on selector switch. The present invention refers to an improvement on a selector switch mainly used in the control of electro-electronic equipment. Said improvement consists of the introduction of magnetic elements on the switch to allow the performance of movement in both directions, the control of electro-electronic equipment, and the reduction of the number of components, which significantly reduces its wear, offering more reliability to the finished product and the possibility to identify the position of the switch when the user turns it on, even if it is moved when it is off.

Abstract: A method and a device for audio coding are disclosed. An audio coding device includes an audio coder for receiving audio signals and generating base data and enhancement data; and a rearranging device coupled to the audio coder. The rearranging device rearranges the enhancement data according to sectional factors of spectral sections to allow output data to be generated from rearranged enhancement data. The base data contain data capable of being decoded to generate a portion of the audio signals, and the enhancement data cover at least two spectral sections of data representative of a residual portion of the audio signals.

Abstract: An electronic device and power switching unit thereof includes a shaft, a rotating member and a moving member. The rotating member, connected with the shaft, includes a first tooth portion and a second tooth portion. The moving member includes a rack an arm and a stopper. The rack interlocks with the first tooth portion. The shaft rotates the rotating member in a first direction, allowing the first tooth portion to separate from the rack, and the second tooth portion pushes the arm to rotate in a second direction. When the shaft rotates the rotating member in the second direction, the second tooth portion pushes the arm to rotate in the first direction toward the stopper, and the stopper limits the rotation of the arm, allowing the arm to move in a third direction.

Abstract: An automated control module for an electrical cut-off apparatus including an automated actuation mechanism (30) having two electromagnets (31) aligned in opposition on a slide (34) bearing a rack (35) which meshes with a driving pinion (40). The driving pinion (40) can rotate about a drive spindle (50) which is intended to be rotationally coupled to the drive shaft of the cut-off apparatus (1). The drive spindle (50) includes a ratchet wheel (51) driven in one direction or another by pawls (43) fastened to the driving pinion (40) so as to switch the cut-off apparatus (1) according to the controlled electromagnet. This control module (10) also includes a manual actuation mechanism (60) and automatic clutch mechanism for disengaging one of the mechanisms (30 or 60) when the other mechanism is in operation.

Abstract: A method and apparatus for controlling a force applied to a pantograph. A bidirectional snubber and a velocity controller are used to dampen the applied force. Linkages between a shaft and the bidirectional snubber and between the bidirectional snubber and the velocity controller are used to rotationally translate the applied force.

Abstract: Disclosed is a force feedback input device including a cylindrical operating member having an open bottom. A support member that is rotatable supports a central portion of an inner surface of the operating member, and a motor which is held by the support member. A rotary shaft of the motor is arranged to be perpendicular to a central axis of rotation of the operating member. A great portion of the motor is housed in the operating member. A pinion that is fixed to the rotary shaft of the motor meshes with a ring-shaped gear that is provided at a part shifted from the central axis of rotation of the operating member.

Abstract: An operating mechanism is provided for a circuit interrupter, such as a battery disconnect apparatus, including a housing and a number of stationary electrical contacts enclosed by the housing. The operating mechanism includes a cam member having a profile with first and second portions. A movable contact assembly includes at least one movable electrical contact, and is cooperable with the cam member to move the movable electrical contact into and out of electrical contact with the stationary electrical contacts. An actuating assembly pivots the cam member between a first position corresponding to the first portion of the profile maintaining the movable electrical contact in electrical contact with the stationary electrical contacts, and a second position corresponding to the second portion of the profile releasing the movable contact assembly in order that the movable electrical contact is movable out of electrical contact with the stationary electrical contacts.

Abstract: A playback apparatus is provided, which comprises a switch device (200) that gives the user good feeling of operating. A tape-shaped switch (500) is provided on a base part (410), extending along the circumference of the base part (410). A ring-shaped rotational drive section (450) opposes the tape-shaped switch (500) and can move to and from the base part (410). A plurality of second rollers (440), each having a roller part (444) made of rubber or the like, are rotatably mounted on the rotational drive section (450). A flange (313) continuously extending outward from the disc-shaped table plate (311) of a jog table unit (310) is mounted on the rotational drive section (450). When the user rotates the jog table unit (310), the rotation-detecting section (470) provided on the base part (410) detects the rotation of the unit (310).

Abstract: Provided is a solid insulated disconnection switch including a base frame to which outside electrical equipment is electrically connected, a driving assembly generating rotating power, a shaft of which an outside surface has a screw thread and which is rotated by the rotating power generated by the driving assembly, a stator having a fixed contact point which is electrically connected to a main bus, a mover which is electrically connected to the external connection outlet of the base frame and moves back and forth in a straight line between the fixed contact point of the stator and a position which is separately disconnected from the fixed contact point of the stator by rotating the shaft, a spacer which is provided between the base frame and the stator, and a power transfer assembly which is provided between the driving assembly and the shaft to transfer the rotating power generated from the driving assembly to the shaft.

Abstract: Disclosed is a handle apparatus of a manual motor starter having an improved structure for transferring driving force between a control lever and a driving lever. The handle apparatus comprises: a rotary handle for controlling ON and OFF operations of the manual motor starter, an interlocking member coaxially coupled with the rotary handle to be rotated by rotation of the rotary handle, the interlocking member having a first gear for providing a driving force; a driving lever having a second gear formed at one side of the driving lever to be rotated by the driving force by the interlocking member, the driving lever having a pin slot for providing a rotational driving force; and a control lever having a sliding pin inserted in the pin slot of the driving lever, through which the rotational driving force is transferred from the driving lever to the control lever.

Abstract: A circuit breaker including a control assembly having a driving and a driven splined shafts and a pair of arcing contacts movable by the control assembly. A synchronization assembly is provided for synchronizing the two splined shafts and includes two levers each of which is provided with a splined ring that co-operates with one of the splined shafts. One of the splined rings has a number of meshing elements which is different than a number of meshing elements on the splined shaft with which it co-operates and an adapter is seated between the one of the splined rings and the splined shaft with which it co-operates.

Abstract: A remote controlled circuit breaker switch handle engagement apparatus is provided. The apparatus is adapted to be removably attached across a circuit breaker face-plate of a traditional residential and commercial circuit breaker in order to facilitate remote completion of a circuit between a source and load, thereby reestablishing electrical service having been previously interrupted. The apparatus utilizes a handle trip assembly which engages an operating switch handle of the circuit breaker.

Abstract: A switch for limiting and controlling a linear range of movement by rotational means. Two limiting positions of the switch are independently adjusted using worm gears. The switch includes a plate and a rotatable block having a rotatable shaft rotatably disposed relative to the plate. The plate has first and second electrolinking points spaced apart from each other. One end of a spring plate is fixed to the first electrolinking point, a middle portion of the spring plate is abutted against a circumferential edge of the rotatable block and the other end of the spring plate adopts two working positions with respect to the second electrolinking point.

Abstract: A force-storing unit for a tap changer has an output shaft journaled in a support and a pair of parallel guide rods fixed on the support, defining a longitudinal direction, and spaced parallel to the shaft. A force-storing slide and an output part are displaceable longitudinally along the rods between respective end positions. Teeth on the output part mesh with a gear carried on the output shaft. Mechanism between a drive shaft and the slide displaces the slide longitudinally on the rods in a direction dependent on a rotation direction of the drive shaft and loads a spring between the slide and the output part as the slide is moved longitudinally relative to the output part. A latch connected between the slide and the output part retains the output part in each of its end positions until the slide moves into the respective end position.

Abstract: The spring-loaded mechanical control mechanism for a circuit-breaker in a high-voltage or medium-voltage grid comprises a toothed wheel turned by a spring from a first angular position to a second angular position, and a cog wheel co-operating with the toothed wheel to displace it from the second angular position to the first angular position so as to tension said spring. The toothed wheel has a peripheral set of teeth including a retractable segment on which at least four teeth are spaced apart from one another at a constant pitch identical to the pitch of the primary teeth.

Abstract: Please replace the Abstract with the attached revised Abstract located at the end of this document.

Abstract: A manual inputting device which includes a sun gear, three planet gears, a motor having an output shaft thereof fixed to the sun gear, a ring gear casing integrally forming a ring gear on an inner peripheral surface thereof, a carrier rotated along with revolution of the planet gears, a carrier shaft mounted on the carrier, a restricting member facing the carrier in an opposed manner while sandwiching the planet gears therebetween, a knob fixed to the carrier shaft, a code plate integrally formed with the sun gear, a light emitting section, a light receiving section, a connector for outputting detection signals generated from the light receiving section, a board connecting these components thereto, a body casing, a bracket served for fixing the motor to the body casing, and a control unit for controlling the motor in response to detection signals from the light receiving section.

Abstract: The electric circuit-breaker includes an interrupting chamber with at least one moving contact inside the chamber, the moving contact being actuated by means of a spring-loaded mechanical control mechanism so as to open or close the circuit-breaker. The control mechanism includes at least one first spring exerting a force tending to move the moving contact to open the circuit-breaker, and a second spring exerting a force tending to move the moving contact to close the circuit-breaker while loading the first spring. An additional spring is provided for exerting an additional force that is added to the force exerted by the first spring at the beginning of circuit-breaker opening. The additional spring thus accumulates some of the kinetic energy from the moving contact at the end of opening.

Abstract: A forward/backward switch protective structure for a remotely controllable car, including an output shaft having a differential section. Two gears are respectively rotatably disposed at two ends of the differential section. A seat body is fixedly disposed on the differential section and a shade body is fitted on the differential section. The shade body is formed with a differential engaging hole for the differential section to fit therethrough. A shade body is controlled by a shifting mechanism and movable along the differential section. The shade body is formed with an internal chamber for receiving therein the seat body. The chamber is formed with annular grooves. When the engaging sections of the shade body are respectively engaged with the stop sections of the gears, the annular grooves respectively correspond to the throw plates of the seat body. When outward centrifugally extended, the throw plates are inserted into the annular grooves to prevent the shade body from moving.

Abstract: In a slow-make type circuit breaker for opening and closing a main circuit contact in synchronism with the manual operation of a rotary operation handle, a ratchet unit 12 as an artificial quick-make means for forcibly increasing the operating force of the operation handle in the middle of a stroke for ON operation of the contact is constituted by a convex cam 11 made of metal and coupled with the operation handle 5, a ratchet 12b made of metal and disposed at a point close to an ON position of the operation handle so as to face the cam, a driving spring 12c for pressing the ratchet toward a rotary movement path of the cam, and a ratchet case 12a in which these parts are incorporated. The unit is fabricated inside a cover 1b of a circuit breaker body. Here, the cam and the ratchet are formed as common parts, and the driving spring is selected in accordance with the kind of circuit breaker.