Abstract: A saw switch box includes a supporting base resting on a switch platform, a switch shelter pivotally connected to the supporting base to define a sheltering cavity between the switch shelter and the supporting base for receiving a switch member, and a locking device for locking the switch shelter on the supporting base at the idle position. In which, at an operation position, the switch shelter is pivotally folded to a position that a contacting side of the switch shelter is adapted for contacting with the switch member to protectively shelter the switch member within the sheltering cavity in position while the saw machine is operating, and at the idle position, an operation side of the switch shelter is pressed to force the contacting side thereof for pivotally pressing the switch member downward to switch off the saw machine.

Abstract: The present invention relates to a power window switch apparatus (1) having a switch housing (5) supporting at least one actuation element (2) for user access at a first surface (4) of the switch housing (5). The actuation element (2) is arranged to be slideable from a zero position in directions perpendicular to the first surface (4). The actuation element (2) being operable upon user manipulation to slide in a first direction outwards of the housing (5) for closing of an associated first switch element (8) for energizing an associated motor for lift of an associated window. The actuation element (2) being operable upon user manipulation to slide in a second direction, opposite to the first direction, for closing of an associated second switch element (9) for energizing the associated motor for lowering the associated window.

Abstract: A method and a device are disclosed for the secure operation of a switching device including at least one main contact which can be switched on and off and which includes contact pieces and a displaceable contact bridge, and at least one control magnet which includes a displaceable anchor. The anchor and the contact bridge are actively connected to each other such that the corresponding main contact can be opened or closed when switched on and off. In at least one embodiment, the method includes the following: a) the path difference, which returns the anchor after switching on and off, is recognised, b) devices which are used to open welded main contacts are released by a release device when the recognised path difference exceeds a predetermined value and a specific time duration of time has run out after switching off.

Abstract: An external operating handle mechanism for a mold cased circuit breaker comprising: an external operating handle; a pinion gear coupled to the external operating handle to be rotatable in response to a rotation of the external operating handle; a movable member provided with a rack gear portion coupled to the pinion gear to be linearly movable according to the rotation of the pinion gear, and provided with a handle connecting portion connected to the handle of the mold cased circuit breaker to linearly move the handle of the mold cased circuit breaker; and a guide member for guiding the movable member to linearly move, by which it is easy to control a stroke required for a displacement of the handle of the mold cased circuit breaker and the displacement of the external operating handle according to the stroke, and it is possible to accurately and efficiently transfer power upon performing a reset operation.

Abstract: The invention relates to an actuating device (1) for an electrical switch device comprising a body (10) upon which is mounted a hand lever (2) that rotates about a main axis (A), cooperating with a transmission shaft (3) able to control the opening or the closing of electrical contacts of the electrical switch device and elastic linking means between the hand lever (2) and the transmission shaft (3). The device also comprises means (7) for locking the rotation of the hand lever (2) with respect to the body (10), used when an angular divergence between the hand lever (2) and the transmission shaft (3) exceeds a specified threshold. The purpose of the invention is to limit the damage to the hand lever and to the electrical device when an operator attempts to return the hand lever (2) to its “Off” position whilst the contacts are welded and to prevent the beginning of electrical arcing if the operator should succeed in unsticking the contacts when rotating the hand lever 2.

Abstract: This invention is an installation of a safety apparatus to prevent safety problems of machine tools caused in work-loading process. The safety apparatus comprises an actuator, used for connecting circuits of the machine tool to control its power on-off status, and a storing unit to ensure the chuck wrench resting at a designated safe position. This safety system will activate the actuator when the chuck wrench is returned to the designated position and, therefore, it will keep the circuits of the machine tool stay active during the machining operation. On the other hand, this safety apparatus will remain in power-off status if the chuck wrench is not placed at the designated position and, therefore, it will make the power circuits open and paralyze the machine tool operation.

Abstract: A switch mechanism has at least one set of contacts including at least one fixed contact and at least one moveable contact which is carried by an axially moveable carrier that is held by a spring-loaded detent when the contacts are closed, the carrier being released with a force to overcome the latching mechanism when opening the contacts, and a cam member with at two cam profiles that is disposed adjacent one end of the carrier and is operable to pull the axially moveable carrier towards the cam and thereby pull the at least one moveable contact into engagement with the at least one fixed contact. In one embodiment, the cam may carry a permanent magnet which when moved attracts and draws with it a permanent magnet mounted fixedly with respect to the axially moveable carrier.

Abstract: A locking apparatus for a manual actuation device of a switchboard plant has a trigger mechanism that is activated by an absence of a backup or a defective backup, and a locking mechanism for the manual actuation device. The locking mechanism is coupled to the trigger mechanism and is transferable by the trigger mechanism from a first position releasing the manual actuation device into a second position locking the manual actuation device. The locking apparatus has a simple and cost-effective construction, it is proposed that the locking mechanism has a cover plate which is displaceable between two positions by the trigger mechanism and which, in its first position, blocks a lever configuration under tensile force, of the locking mechanism and, in its second position, releases the lever configuration in order to lock the manual actuation device.

Abstract: A weatherproof cover for protecting electrical receptacles from the harsh elements of weather is disclosed herein. This novel weatherproof cover is operable while the electrical receptacle is in use and includes a weatherproof switch that controls power to the receptacle such that when the receptacle cover of the weatherproof cover is closed after the insertion of an electrical appliance plug, the weatherproof switch can be selected to the ON position to provide power to the receptacle. Power can be subsequently removed or disconnected from the receptacle by simply selecting the OFF position of the switch. Thus, the weatherproof cover protects the receptacle from damage “While-In-Use” and provides a disconnect switch to control power to the receptacle without having to open the receptacle cover.

Abstract: An interlock mechanism for preventing a first circuit breaker having a first actuating mechanism and a second circuit breaker having a second actuating mechanism from simultaneously being in a closed condition. The interlock mechanism includes a frame, a sliding bar slideably mounted within the frame, and one or more retaining protrusions extending outwardly from one or more inner edges of the frame. The sliding bar is movable between a first position and a second position. In the first position the sliding bar blocks a path of movement of the first actuating mechanism and in the second position the sliding bar blocks a path of movement of the second actuating mechanism. The one or more retaining protrusions frictionally engage the sliding bar when the sliding bar is in the first position and holds it in place, preferably with a frictional force sufficient to resist the force of gravity and/or vibrations.

Abstract: A switch operates between a first and a second position which selectively connects a load to a first and a second power supply. The connections are made by sliding one or more rods along their axis. The ends of the rods fit within channels to form electrical contact with the first and second power supply.

Abstract: A locking switch includes a shaft that engages one or more electromechanical switches and a knob that is secured to the shaft such that when the knob is rotated, a rotary motion is imparted to the shaft and to the electromechanical switches engaged by the shaft. The locking switch also includes a lock ring having multiple slots and a lock lever that is attached to the knob and that is captured in one of the slots in the lock ring to prevent rotation of the knob.

Abstract: A switch deactivation device includes a coil portion having a number of coils. The coils are configured to couple to a portion of a vehicle door switch, such as a plunger shaft or a mounting flange. The coils may be coupled to the portion of the switch by adjusting an internal diameter of the coils. The device also includes a plunger-engaging portion configured to depress a plunger of the vehicle door switch while the device is coupled to the switch.

Abstract: An emergency switch comprises a base on which an electrical circuit switch, and an indicator pin are mounted. An activation body is provided with an activation projection and a torsion spring and is movably mounted on the indicator pin. A trigger button is provided with a through hole and is fastened with a top end of the activation body. When the trigger button is triggered, the activation body is forced to move downwards along the indicator pin, so as to cause the activation projection to turn off the electrical circuit switch. A top end of the indicator pin is jutted out of the through hole of the trigger button to indicate that the emergency switch is in the state of activation.

Abstract: An operating switch for a motor vehicle with a housing having an operating opening for accessing an operating element, and a protective device movable relative to the operating opening for temporarily covering the operating element on the operating side. The protective device is formed as a slide member guided in the housing, displaceable at right angles to the access direction of the operating opening, the slide member and the operating element being pivotable together so that the slide member is movable from a first position, in which the operating element is arranged in the operating opening, to a second position in which the operating element is covered within the housing and the operating opening is closed by the slide member.

Abstract: A lockable switch mechanism for a machine guard includes a switch plunger and locking and switch mechanisms. The plunger moves, upon insertion of an actuator, between two positions to actuate the switch mechanism and is locked by the locking mechanism, which has one locking member biased against a surface of the plunger and another locking member that is displaceable between locked and released positions. The plunger has an annular shoulder that displaces the first locking member when the plunger is moved. The second locking member prevents displacement of the first locking member by the plunger to thereby prevent movement of the plunger. Thus removal of the actuator is prevented unless the second locking member has been moved to the unlocked position when the machine is in a safe condition.

Abstract: A switch interlock apparatus for use with switch panels that have pairs of functionally related switches, in which the handles for the switches are mounted in tandem and aligned with their pivot axes parallel to and spaced apart from one another, in which one of the switches must be flipped, before the other switch can be flipped. The switch interlock apparatus mechanically connects the handles of two functionally related switches so that as one switch moves from an “OFF” to an “ON” position, the interlock constrains the handle of the related paired switch to move from “ON” to “OFF” first. In a preferred embodiment, the switch interlock apparatus incorporates a monolithically formed interlock member that can be directly mounted to a switch panel without intermediate assembly steps.

Abstract: The present invention relates to a combined roller and push switch assembly, comprising a substantially hollow wheel-like roller member being displaceable from an initial position to a displaced position. The combined roller and push switch assembly further comprises means for returning the roller member from the displaced position to the initial position, the returning means comprising a resilient member being at least partly encircled by the roller member, and means for detecting rotation of the roller member in relation to an associated frame. In particular, the combined roller and push switch assembly further comprising switching means for indicating when the roller member is in the displaced position, the switching means being at least partly encircled by the roller member.

Abstract: A method and apparatus for activating a fire-alarm pull station. The pull stations includes a non-contact switch located within a housing, a movable actuation device linked to the non-contact switch wherein the device moves between an activation and non-activation position and an actuator protector linked to the non-contact switch to aid in preventing improper activation of the non-contact switch.

Abstract: A lockable switch mechanism for a machine guard includes a switch plunger and locking and switch mechanisms. The plunger moves, upon insertion of an actuator, between two positions to actuate the switch mechanism and is locked by the locking mechanism, which has one locking member biased against a surface of the plunger and another locking member that is displaceable between locked and released positions. The plunger has an annular shoulder that displaces the first locking member when the plunger is moved. The second locking member prevents displacement of the first locking member by the plunger to thereby prevent movement of the plunger. Thus removal of the actuator (and for example opening of an associated machine guard door) is prevented unless the second locking member has been moved to the unlocked position by for example a solenoid which is energised when the guarded machine is in a safe condition.

Abstract: Disclosed is a reset mechanism for use in an electric device equipped with a microcomputer having a reset circuit associated therewith. An insulating housing of the electric device has a small through hole provided therein, and chassis of the electric device has a small through hole provided therein and in alignment with the small through hole of the insulating housing. A reset terminal of the reset circuit is placed behind the small through hole of the chassis of the electric device. The microcomputer can be reset simply by inserting a metal rod into the two through holes as far as the reset circuit.

Abstract: An appliance control system is configured to operate an appliance in at least a normal mode and a holiday mode wherein normal mode operation of appliance feature elements is altered to better conform to religious customs, such as Orthodox Jewish customs. In response to user manipulation of a control interface panel, the control system is configured to enter the holiday mode upon user manipulation of the control interface panel with a designated key sequence. When in the holiday mode, response to user manipulation of the control interface panel is delayed for a randomly determined time, and appliance features of the normal mode that violate religious custom are disabled.

Abstract: A replaceable circuit breaker module has a housing for supporting and enclosing elements of the module, a circuit breaker mounted in the housing in a manner that an action of installing the module connects the breaker to bridge an incoming and an outgoing conductor, and monitoring circuitry for monitoring characteristics of the circuit breaker, the monitoring circuitry mounted in the housing and having a first connector element for engaging a mating connector element in the action of installing the module. The module is characterized in that action of withdrawing the circuit breaker module also withdraws the monitoring circuitry. Sensors in the monitoring circuitry may include sensors for monitoring one or more of breaker presence, on/off state of the breaker, and voltage provided to the breaker.

Abstract: A device for closing the door of an electric household appliance, in particular a dishwasher, includes a latch that is fitted in rotary manner to the door to cooperate with a catch fixed to the electric household appliance, and is connected to a switch, acting on a circuit of the electric household appliance, by a control lever cooperating with a contact on the switch. The control lever is hinged directly to a support fitted integrally to the door, and is connected to the latch by an elastic element, which keeps the control lever resting permanently on the contact and activates the switch as soon as the latch begins rotating when the door is opened, thus eliminating any dangerous delay in stoppage of the electric household appliance.

Abstract: When a person is having guests over, there may be some light switches that they may not want their guests to touch. The switch may turn on a light outdoors, or it may turn on another light that the host may not want turned on. If the guest forgets to turn off the light switch, the light that it turned on will be wasting electricity and it may even burn out the bulb. It is easily installed, and it sends the message that the light switch is not to be touched.

Abstract: An electrostatic actuator includes a movable member that is connected to a movable member securing section through a movable connection beam so that the movable member can be displaced in the x-axis direction. Drive electrode supporting sections are connected to drive electrode securing sections through driving connection beams so that they can move towards and away from each other. Gap sizes a, b, and c between first movable electrodes to third movable electrodes and respective first drive electrodes to third drive electrodes are successively larger. When the actuator operates, the movable member is displaced in a plurality of stages by electrostatic forces successively produced between the first movable electrode and the first drive electrode, the second movable electrode and the second drive electrode, and the third movable electrode and the third drive electrode.

Abstract: A method and apparatus for preventing the activation of an electrical component within an electrical distribution network. The apparatus comprises an electrical component, such as a disconnect switch, a means for the actuation thereof, and an independently moving restriction means. When the electrical component is in a deactivated condition, the actuation and restriction members are capable of being coupled together with a locking device, such as a padlock, to prevent activation of the electrical component. Conversely, when the electrical component is in an activated condition, the actuation member may moved to deactivate the electrical component, regardless of the installation of one or more locking devices in the two members. Hence, the electronic component may not be restricted to the activated condition.

Abstract: A monitoring device for a protected area of a machinery installation, the area being accessible through at least one access opening which can be closed off by an element, such as a door, shutter, or the like, which is movable between an open position and a closed position. The monitoring device being arranged adjacent to the movable element and comprising a safety switch having a housing, an evaluation device, a movable element positionable between a closed and an open position, a coded release mechanism located on the movable element, and a read head for reading the coded release mechanism when the movable element is in the closed position. The safety switch being further provided with an actuator bearing a release mechanism, and which, in a locking position in the housing, locks the movable element in its closed position. The housing having a receiving space for the actuator such that the release mechanism is located adjacent to the read head when the actuator is in the locking position in the housing.

Abstract: An emergency call button for motor vehicles has at least one actuator part and one or more triggers, wherein the actuator part acts in a triggering position on one of the one or more triggers for triggering an emergency call. The actuator part has a rest position and is secured in the rest position against movement into the triggering position. A spring is provided that locks the actuator part in the rest position. The actuator part is axially movable against the force of the spring from the rest position into a release position and is rotatable in the release position about an axis of rotation in order to reach the triggering position.

Abstract: An emergency call button for motor vehicles has at least one actuator part and one or more triggers, wherein the actuator part acts in a triggering position on one of the one or more triggers for triggering an emergency call. The actuator part has a rest position and is secured in the rest position against movement into the triggering position. A spring is provided that locks the actuator part in the rest position. The actuator part is axially movable against the force of the spring from the rest position into a release position and is rotatable in the release position about an axis of rotation in order to reach the triggering position.

Abstract: A socket provides power to a mating connector plug when actuated by a switch integral with the socket. The switch can be actuated by insertion of the connector plug, by pivoting open a socket cover, by sliding a slide cover into an operational position, or by a combination of the above. The switch is isolated from the power supplied to the socket and acts as a power supply signal to enable socket power. The socket is powered only when needed as indicated by the actuation method, thereby reducing draw on a power supply connected to the socket. The switch actuation methods described also provide safety features by disabling power to the socket unless the socket is actually in use. The socket cover and slide cover also prevent access to the socket unless positioned to receive a connector.

Abstract: In an exemplary embodiment of the invention, a locking mechanism comprising a blocking member sized to fit within the elongated slot through which a circuit breaker handle extends is disclosed. The blocking member may be seated adjacent the circuit breaker handle within the elongated slot and may snap or otherwise be locked into place to prevent the circuit breaker handle from moving within the slot. Thus, if the blocking member is placed within the elongated slot when the circuit breaker handle is in an OFF position, then the circuit breaker handle will be locked in the OFF position. The blocking member can be converted for locking the circuit breaker handle in an ON position. Then, when the blocking member is placed within the elongated slot when the circuit breaker handle is in an ON position, then the circuit breaker handle will be locked in the ON position.

Abstract: A retention device for removably carrying a leverage arm on a switchgear cabinet includes a mounting member structured to be mounted on a housing of the switchgear cabinet and a tab structured to extend outwardly from the housing. The tab is formed with an opening that slidably receives a shank of the leverage arm therein, the opening being configured to resist movement of a head of the leverage arm through the opening. A moveable cover is positioned in relation to the retention device to retain the leverage arm on the retention device when the cover is in a closed position, yet permit the leverage arm to be removed from the retention device when the cover is in an open position.

Abstract: The invention relates to a monitoring means for an area, which can be closed off by at least one door, of a mechanical installation, comprising a safety switch which is adjacent to the respective door and can be actuated by means of an elongate, key-like actuator. It is possible for the actuator to be brought into and out of engagement with the safety switch via two actuating handles which are respectively located on the outside and inside of the door and are coupled to one another by a pin. A control means is coupled to the mechanical installation and to the at least one safety switch for releasing and blocking the at least one safety switch. In this arrangement, the actuator, which can be displaced longitudinally in a guide of a covering by actuation of one of the actuating handles, has a rack section which is in engagement with a toothed-ring segment which is coupled to the pin.

Abstract: A switching device has a closing device and a traversing mechanism for insertion and retraction relative to an insertion frame, where the said devices can be operated only in the OFF state of the switching device. A blocking bar having a cam element that cooperates with a carrier of an OFF operator is guided by elongated holes behind an operator's console of the switching device. The carrier and the cam element work together in such a way that the OFF operator can be pulled inward when the blocking bar is operated, thus signaling to the user that the switching device is locked in the OFF state.

Abstract: A keyboard has a slidable key lock switch which is supported in a keyboard housing and not slidable for unintentional switching between a lock position and an unlock position. The keyboard also has a contact provided on a lead for sending signals from a keyboard circuit in the keyboard housing to an information processing device. The contact can selectively be opened and closed by a manually operable member of the key lock switch.