Abstract: A circuit breaker having positive contact indication. Upon the circuit breaker tripping, the operating mechanism components unlatch, moving the cradle, upper link and lower link upwards and opening the contacts. Upon the circuit breaker being manually opened, no operating mechanism components move except the upper link and lower link which causes the contacts to open. Upon the occurrence of locked contacts and the operating mechanism receiving a trip signal, the operating mechanism components unlatch but move only slightly since the contacts cannot open. A shuttle, pivotally mounted on the cradle, moves upward slightly to catch its tail on a flipper spring. The shuttle rotates slightly to meet a tab positioned on the handle arm and to block and opening movement of the operating handle.

Abstract: A motor operator for local or remote shifting of switchgear contacts toward either open or closed positions includes a reversible motor and rotatable drive screw mounted on common support structure for simultaneous pivoting movement as a drive nut translates fore-and-aft along the length of the screw. The drive nut includes an outer body and an inner sleeve which is set into free-wheeling motion whenever the sleeve comes into contact with either of two stops mounted on the screw defining respective end limits of travel for the nut. A drive element normally coupling the nut to an operating shaft of the switchgear is removable to allow the shaft to be manually rotated with a wrench when desired, and removal of the drive element reduces the likelihood that the worker is injured upon unintentional activation of the motor while the operating shaft is turned by hand.

Abstract: A two component operating handle for opening and closing an electrical switch by a hook stick, the handle including a rigid portion mounted on the operating shaft of the electrical switch and a flexible portion mounted on the outer end of the rigid portion. The flexible portion including a pair of extensions extending outwardly to form an enclosed hook stick opening with the ends of the extensions terminating at a slot at the outer end of the handle so that the hook stick will be released from the opening on bending of one or both of the extensions to open the slot when the rigid portion of the handle engages a fixed stop.

Abstract: A switch assembly especially suitable for use as part of an overall electrical circuit breaker is disclosed herein. This switch assembly includes a three-link arrangement consisting of three links interconnected together for movement between a first positional configuration in order to open a circuit and a second positional configuration in order to close and circuit. A mechanism is provided for applying a force to the linkage arrangement in a way which causes the links to open from a closed position, that is, to move from their first positional configuration to their second positional configuration, and thereafter for maintaining the links in their open configuration.

Abstract: A compact electric safety switch including a rotatably mounted double contact blade assembly. Heavy duty compression springs are positioned under the blade assembly for rapid make and break connection between opposing line and load contact stabs. A pair of contact springs directs the contact blade during transit between the line and load contact stabs and serves to increase the contact pressure between the contact blade and the contact stabs when the contact blade is inserted therein.

Abstract: An inter-locked button actuated matrix switch system for automotive instrumentation with button cluster switching, in which the switches form a 2.times.2 matrix switch circuit free of diode feedback protection in its input lines, the button structures being rocker mounted preventing the concurrent actuation of their associated switches. One button structure integrally includes two, closely spaced button elements having the look and feel of two independent buttons, with the other button structure having a relatively wide, single, continuous button actuation surface, the three "buttons" being located in line forming a button cluster for the automobile's information center.

Abstract: This disclosure relates to apparatus for use with a mechanism having at least one preselected position and for indicating whether the mechanism is at this position. The apparatus comprises a lever having an axis of rotation and which is rotatable on the axis. A cam is fastened to the lever and is rotatable with the lever, the lever and the cam being operably connected to the mechanism and to be rotated to a first angular location when the mechanism is at the preselected position. A sensor is mounted adjacent the lever and is responsive to the position of the cam.

Abstract: An over-center actuator switch assembly includes a U-shaped bracket having a plurality of similar switches mounted in side-by-side relation between the flanges of the bracket. Each actuator has a depressible operator extending into the bracket. An operating lever is pivoted between the bracket flanges and contacts all of the switch operators. A control lever is also pivoted between the side flanges of the bracket, and one or more compression springs is biased between the levers. Pivotal movement of the control lever moves the levers and springs through an over-center condition to effect snap action pivoting of the switch operating lever and reversal of the condition of depression of the operating members.

Abstract: An electric switch is provided with a support frame at which several key switch elements are individually clipped on. An actuating front piece is attached at the support frame, which is mounted at a front plate of a switching cabinet or the like. A transmission apparatus with a compression spring is provided between a pressure pin of the actuating front piece and a ram of the key switching elements. The compression spring, the ram and the pressure pin are disposed in an inner space of the support frame receiving the key switching elements. The transmission apparatus provides several individual thrust journals which are resting in the base body and which are moved against the force of the individually coordinated overthrow springs for actuating the key switch elements against the ram.

Abstract: A selector mechanism, especially for actuating a switch and capable of selectively operating in two different modes utilizing the same operation of a common actuator, comprises a pair of links each connected at one end to an actuating member and carrying at the other end a projection engaging in a respective slot in an operating member, each of which slots has a recess into which the respective projection rests in a neutral position of the operating member, and a selector device operable to cause a surface thereof to engage one or other of the projections and retain it within the respective recess, so as to cause movement of the respective link to be transmitted to the operating member and move it in a direction determined by the link, while leaving the projection associated with the other link free to move along its respective slot.

Abstract: An electrical switch having a contact carrier plunger which is rectilinearly guided in a housing and which can be driven by rotatable cam rollers which are arranged to be rotated on a shaft by an actuating member inserted through an opening in the switch housing. The arrangement is configured so that the roller rotation will be locked when an actuating member differing from a prescribed predesigned shape is attempted to be used. When an actuating member of the predetermined shape is employed, however, the two rollers can be laterally displaced from one another along their axis of rotation to unlock the plunger movement as the actuating member is forced against mating surfaces performed on the rollers. The openings through which the actuating member may be inserted each consists of two slots separated by an intermediate wall.

Abstract: A push and rocker action switch includes a pair of switchable contacts, either of which is switchable in response to a rocker motion of a depressible actuating member, and both of which are switchable at the same time in response to an overall push depression of the actuating member. The actuating member is positioned by an opening defined in a faceplate such that it is centrally supported by a resiliently yieldable pivot. The pivot and the switchable contacts are provided by raised portions in an elastomeric sheet material which is supported by a circuit board fastened to an underside of the faceplate.

Abstract: An electric safety device for controlling a power switch 8 and a grounding switch 9 of a high voltage electric device includes a motor 10, a threaded shaft 4 driven by the motor, a movable sleeve 5 on the threaded shaft for being driven by the motor to and fro, and a pair of rotary members 6, 7 each of which includes a wheel 62, 72 having a recess on its periphery, a rod 61, 71 axially extending from its center, and a U-shaped guide piece 63, 73 radially extending from the rod. The rods are parallel to one another and are disposed near the shaft perpendicularly, and the guide pieces are movable one after the other through 90.degree. when pushed by the sleeve to cause the rods and the wheels to rotate. The periphery of one of the wheels cams the power switch off and the periphery of the other wheel thereafter releases the grounding switch when they rotate to safely enable maintenance work.

Abstract: An electric power distribution switch including an auxiliary biasing mechanism to assist the operator in closing the switch to overcome the resultant repulsive forces which oppose the closing forces provided by the operator.

Abstract: An actuating mechanism for example for an electric switch comprises a driving member, a driven shaft and a transmission gearing through which the driven shaft is driven by the driving member through a certain angle of rotation after a predetermined number of revolutions of the driving member. An actuator carried by the driven shaft is operative at a predetermined angular position of the driven shaft. An adjustment shaft is provided which can be rotated to rotate the driven shaft through the transmission gearing, a clutch being connected between the driving member and the transmission gearing to permit by disengagement of the clutch the adjustment shaft to rotate the driven shaft relatively to the driving member. A radial projection, e.g.

Abstract: A switch operated by a reciprocating pin mounted to the base of an electromagnetic reciprocator, which is a motor with a coil that retrieves electricity stored in the electromagnetic field of a permanent magnet. The switch consists of a reciprocating plastic block with two adjacent parallel grooves which engage the reciprocating pin. The pin strikes a curve at the end of each groove and causes the block to reciprocate in a direction perpendicular to the direction of reciprocation of the pin. Two terminal arms mounted on the block alternately contact two pairs of terminal posts connected to the coils of electromagnets in the electromagnetic reciprocator, reversing the circuit through the coils and the polarity of the electromagnets and causing the electromagnets to alternately attract and repel the permanent magnet. The switch operates the electromagnetic reciprocator, and the electromagnetic reciprocator operates the switch.

Abstract: The present invention relates to a construction of a control switch for use in measuring instruments of various types, such as digital indication type slide calipers. A link member is pivotally supported and pivoting thereof is effected by a movement of a control button. The link member is interposed between a switch portion for effecting the electrical connection or disconnection and the control button, which control button is provided in a side wall of a case body disposed for movement in a direction perpendicular to the working direction of the switch portion, and, when the link member is pivoted by movement of the control button, the electrical connection or disconnection can be effected.

Abstract: A circuit breaker having an integral handle cover assembly for manual operation of the circuit breaker. The handle assembly comprises a cap segment and a base segment. The base segment removably engages with the operating mechanism of the circuit breaker with the cap segment positioned exterior to the circuit breaker cover and engaged with the base segment such that the handle assembly is attached to the cover while being movable in the opening thereof during the opening and closing of the circuit breaker allowing the cover to be removed from the circuit breaker without the detachment of the handle assembly from the cover.

Abstract: An electronic apparatus such as an electronic calculator has a detachable electric member such as an external memory card and, to avoid unfavorable effects such as destruction of memory at attaching or detaching of the electric member, the apparatus is provided with a switch which automatically turns off the power supply to the electric member when it is being attached to or detached from the apparatus.

Abstract: An improved disconnect/ground switch assembly for use in conjunction with a high voltage DC power supply is disclosed. High voltage rectified DC power is provided on a conductor through an insulating bushing. An electrically conductive contacting mechanism mounted on the end of the bushing and in electrical contact with the conductor serves as a source of power for driving a pair of loads through respectively associated switching contact members. Actuating mechanisms for switching either or both of the switch contacts to associated grounded contacts are shown. Opposed apertures in the switch housing are adapted for receiving load driving conductors positioned in conductor conduits. A transparent covering of a viewing aperture for observing the positions of the switch contacts is shown.

Abstract: An operating unit for an industrial robot is provided with hand-sensing device arranged in such a way that, when an operator operates the robot with the aid of a joystick, the operator's hand rests on the hand-sensing device enabling the joystick to be operated with the fingers of the same hand. Suitably the hand-sensing device includes a plate and a transducer sensing the presence of the operator's hand when it rests on the plate. The transducer influences a control unit which only allows the joystick to influence the robot when a hand is sensed by the hand-sensing device when the hand rests on the plate.

Abstract: A switching assembly for selectively connecting telephone cable to a test set or the like. A mounting panel provides connectors for receiving two twenty-five pair telephone cables, and a third connector for receiving another twenty-five pair cable. A set of switches provides for connecting the third connector to either the first or second connector. The switches are mounted in a row on a printed circuit board and are driven by a sliding actuator plate carried between the switches and the mounting panel, with a rotating knob driving the actuator plate to control the switches, and indicating which of the first and second connectors is being connected.

Abstract: A switching apparatus includes a support member having a plurality of connector terminals linearly arrayed along a side thereof. A common electrically conductive terminal is disposed in parallel relationship with the linearly arrayed connector terminals. The common terminal is spaced from the connector terminals so that a plurality of open areas are defined for receiving a connector member which is moved by a movement mechanism to connect a selected one of the connector terminals to the common terminal. The connector element is so disposed that the making and breaking of its engagement with the connector terminals is offset from the line along which the connector terminals are arrayed so that electrically conductive bridges are not formed between electrical conductors connected to adjacent ones of the connector terminals.

Abstract: A hand controller for use with a home electronic video game produces electrical control signals in response to manipulation of a control stick extending through an aperture in the controller housing. The control stick is attached to an actuator stem which forms part of a multi-position switch assembly within the housing. The switch assembly includes a helical coil spring which is attached at one end to an interior surface of the housing and is arranged to concentrically receive the actuator stem so as to support the actuator stem and control stick in an upright non-actuated position. Displacement of the control stick and actuator stem causes the helical spring to contact one or more of a plurality of electrical contact pads disposed generally concentrically around the spring. This causes appropriate control signal to be produced for application to the video game.

Abstract: A wall command switch (10) comprising a main frame (9) insertable over a conventional switch plate (50) and having a base portion (20) and an essentially planar pressure plate (15) rockably mounted within the base portion and substantially co-extensive therewith. An electrical switch (28) is mounted on the bottom surface of the main frame and a switch operator (35) is attached to the pressure plate in alignment with operable portions of the electrical switch so that rocking of the pressure plate moves the operator into engagement with the electrical switch. Structure in contact with the pressure plate to return the pressure plate to an unrocked position is provided. The base portion (20) also mounts a vertically moving override switch operator (55) which in turn moves through an actuator (70) an inwardly located position switch (77) which can allow automatic-manual or off functions of a light electrically connected to the command switch.

Abstract: An adapter is disclosed which is applicable for use in conjunction with a video game controller system. The disclosed adapter increases the manual inputs that can be communicated from one of the manual controller units to the video game controller system. The adapter comprises a shell opened at one end and adapted to fit over and envelop the joystick member such that the joystick member can be moved by manually moving the shell. A switch is mounted in the shell, and a conductor is provided for coupling the contacts of the switch to elements of an auxiliary connector. The auxiliary connector is adapted for coupling to an input port of the video game controller system. The auxiliary connector includes an auxiliary input port for receiving the connector of the respective manual controller unit.

Abstract: Two embodiments of a multi-directional control unit for video games and the like are disclosed. In each embodiment, the control unit includes a base structure, a circuit board with directional circuit segments, a resilient conductive pad arranged adjacent the circuit segments on the circuit board, a raised matrix on the conductive pad normally maintaining the pad in spaced apart relation from the circuit segments, a control element movable relative to the base structure and a directional actuator coupled with the control element for response to relative movement between the control element and the base structure for applying pressure to the resilient pad and establishing electrical contact with one or more of the circuit segments on the circuit board. One of the embodiments is a hand-held unit with the control element being a joystick, auxiliary triggers being mounted on opposite sides of the hand held unit for establishing selective contact in an auxiliary circuit segment.

Abstract: A multiposition switch for operatively selecting any of the multipositions which are aligned and spaced from each other in two different directions. The multiposition switch includes a structure wherein all stationary contacts to be switched by first and second switching contacts are insert-molded onto an insulator member simultaneously and are fixed thereonto exactly in a predetermined arrangement. A first contact holder is moved in a first direction when an operation knob is operated in the first direction. A second contact holder is moved in a second direction when the operation knob is operated in the second direction while the first contact holder is maintained in a neutral position.

Abstract: A joystick controller includes an enclosure including unitary one-piece cover and bottom parts. The cover part has structure defining a plurality of receptacles respectively receiving direction-control switches and a handle support module therein, while the bottom part has a plurality of projections which cooperate with the receptacles to hold the direction-control switches and the support module immovably in place. The support module is a multi-part assembly which is assembled without the use of fasteners and tiltably supports the handle for actuation of the direction control switches. Two fire control switches are also mounted in the housing on support pins integral with the cover part.

Abstract: A hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center portion and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface.

Abstract: A mechanism is provided for operating an electrical switch of the type having a set of contacts electrically connected to the tapped windings of an inductor or transformer, and a tap changing mechanism for electrically connecting various contacts in response to the rotation of a shaft. The electrical switch is mounted onto the base of the inductor or transformer and the operating shaft of the switch is connected to a flange wheel. Another flanged wheel carried by the base, is in connection with a prime mover on the exterior of the transformer or inductor. One or two bowden cables are connected between the two flanged wheels with the outer portions of the bowden cable held fixed relative to the base and the inner portion of the bowden cable connected to the flanged portion of the wheels in such matter that relative motion between the inner and outer portions of the bowden cable induces rotation of the wheels. Thus, the switch is rotated in direct response to the prime mover.

Abstract: In a hand video controller having two portions (11, 13) tiltable with respect to each other to make or break a series of spaced electrical switch contacts (26) to move a video cursor and having one-piece spring (47) having inner and outer connected rings (31, 33) to return the portions to a neutral position, an improved spring mounting comprising a mounting block (15) having a bearing recess (19) attached to one controller portion (11), a switch operator holding member (20) having a matching bearing surface extension (22) and attached to the other controller portion (13), switch contact means (27) between the block and holding member, and wherein the rings of the spring are connected respectively to and between the block and holding member and tilting movement of the controller portions deflect the spring rings and bring spaced flexible switch operators (28) extending from the holding member into contact with at least one of the switch contacts (26).

Abstract: A four-way electrical switch having a die-cast, metal housing, a set of fixed-contacts disposed in the base of said housing and a central movable-contact assembly disposed within the housing above the fixed-contacts. The die-cast housing serves as a ground contact for the switch. Various provisions are disclosed for assuring good electrical connection between the contacts. Additionally, a mechanical strain relief structure is disclosed.

Abstract: A step switch is formed by a rocking member which is coupled at its ends to perpendicular pivotting interlocking levers which, in turn, reciprocate a control plate in a longitudinal direction. The control plate carries pawls which engage ratchet teeth on a slidable contact holder to move the latter through one step in response to pressure on either end of the rocking member. A notch is formed for receiving each pawl at the end of its reciprocating path for preventing slip in the switch operation.

Abstract: An electrical shorting switch assembly for use with an electrolytic cell includes a plurality of parallel path electrical switches. One of the switches is an arcing switch which is designed to be a last-to-open and last-to-close switch of the assembly. A common rotatable operating shaft is used to actuate opening and closing of the electrical switches. The arc switch has separate linking means between the arc switch and the shaft which permits sequential operation of the arc switch relative to the main current-carrying switch or switches. The arc switch linking means in conjunction with the linking means for the current switches determine that the arc switch is the last to open and last to close.

Abstract: A hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center portion and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface.

Abstract: A unitized manual actuator assembly is attached to a printed circuit board for operating poppet switches mounted thereon. The actuator assembly comprises a two-piece housing having a pair of integral tube guides disposed in the housing. A pin is slideably disposed in each tube guide with one end protruding out of the housing for operating the switches. The internal end of each pin has an integral hollow cap covering and protecting the upper open end of its associated tube guide. A coil spring surrounds each tube guide and engages the integral hollow cap of the pin to bias it against a rocker member pivotally mounted in the housing. The rocker member has an operator portion extending through an opening in the housing and a pair of oppositely extending arms engaged by the hollow caps so that the pins translate in opposite directions when the rocker member is pivoted.

Abstract: A switching and control apparatus, comprising: a stepping switch with a rotatable controller barrel; a regulator having a rotatable setting shaft drivable by the controller barrel; a clutch, including a regulator-side coupling member fixed for rotation together with the setting shaft, effective over a predetermined range of angular regulator settings, in which the controller barrel drives the setting shaft, and ineffective at angular settings beyond the predetermined range, during which the setting shaft is not driven by the controller barrel; and, a spring-loaded arrangement for restraining rotational movement of the regulator-side coupling member during movement of the controller barrel beyond the predetermined angular range.

Abstract: A multiple position switch having a plurality of contact regions on, e.g., a PCB and corresponding conductive regions mounted on a piece of resilient material resting on the surface, with each conductive region contained within a hollowed portion of the resilient material to be thereby spaced apart from the respective contact region, and having a swivelingly mounted joystick, the joystick having a plurality of urging members positioned radically outward from the longitudinal axis of the joystick corresponding in number and position to the number and position of the respective contact regions.

Abstract: A stepping or indexing mechanism for an encoding rotary or multi-position switch is arranged within a switch housing. The stepping mechanism comprises a symbol or numeric wheel, two substantially mirror-image and mutually symmetrically arranged locking or latching levers, a locking or latching wheel, a gear meshing with the symbol or numeric wheel as well as a switching or indexing element arranged laterally at the switch housing. The locking or latching levers are movably mounted at one end in a bearing or support element and at the other end are structured for the rotatable mounting of a related roller. The latching levers are drawn together with the rollers by a tension spring or equivalent structure into latching or locking recesses of the locking wheel. For the switching operation the locking levers are deflected against the restoring force of the spring out of the locking recesses, and the rollers then slide along locking or latching cams or dogs provided with arcuate-shaped flank profiles.

Abstract: A plurality of individual electrical load switches each having an operating tab are so mounted and oriented that the operating tabs extend toward a central axis to define a circle substantially normal to the central axis and operate substantially in the direction of the central axis. An operating arm having ends thereof arranged to be brought into register with each operating tab at mutually exclusive angular positions is normally tilt mounted in a first direction upon a rotor that may be positioned in selected ones of a plurality of angular positions by a step motor. Upon one end of the arm being brought into register with a switch operating tab, the arm is tilted in the opposite direction to effect the operation of the operating tab with which the one end thereof is in register to place the corresponding individual electrical load switch in a selected circuit condition.

Abstract: A switch mechanism comprises an operating member having an outer surface including tabs formed on the left- and the right-hand half thereof, with switch operating protuberances formed on the rear surface thereof in alignment with the respective tabs. A recess is integrally formed in a housing of an electrical instrument, and the operating member is rockably disposed in the recess for seesaw motion therein. A pair of pushbutton switches are disposed on paths of movement of the protuberances, and are quickly operated by an angular movement of the operating member through a reduced angular stroke.

Abstract: An elongated unitary arm of a rigid material is tiltably mounted upon a rotor supported for rotation about a central axis and is spring force tilted in a first direction. This assembly is located in such a manner that the arm may be placed in register with any one of the operating tabs of a plurality of electrical load switches so mounted and oriented that the operating tabs extend toward the central axis to define a circle. Upon being placed in register with a switch operating tab, the arm is tilted in the opposite direction by the action of a solenoid actuated plunger.

Abstract: Joystick switch comprises a handle attached to a contact carrying support member which is latchably carried by latch arms attached to a contact carrying base member. Contacts are cast in loop-like patterns toward the periphery of each member and an elastomeric member inside the bounds of the contacts between the support member and base provides resilient return action. A plunger carried in a bore in the handle and through the elastomeric member closes contacts in the base and is operated independently of the joystick directional control.

Abstract: A four-pole circuit breaker has an operating mechanism associated with one of the intermediate main poles, so as to take up an asymmetrical position with respect to the layout of the four poles. The mechanism has springs similar to those of a three-pole breaker. The transverse tie bar is common to the three main poles and is mechanically coupled to a kinetic linkage controlling the fourth pole, so as to bring about the closure of the contacts of the fourth pole before the closure of the contacts of the main poles upon closing of the breaker, in order to match the four-pole load torque to the three-pole motor torque of the mechanism.

Abstract: A combination selector and directional switch for electrically operated remote control rearview mirrors in which a single control fixture allows the operator to select a right or left hand mirror and then by manipulation of a pendant, movable in two plane directions, to orient the mirror glass as desired. The linear movement of a selector lever causes rotational movement of a selector ring whereby the left or right hand mirror is connected to be controlled by the selected manipulation of the pendant.

Abstract: A joystick controller in which a conventional handle is moveable radially with respect to its axis relative to an axial pivot location from the nominal rest position of the handle is disclosed. A plurality of pressure-actuated switches are disposed in a common plane normal to the axis of the handle in its rest position. The switches circumscribe the approximate pivot location of the handle. A deformable resilient annular member is superimposed over the switches. The annular member is fixed to the handle so that displacement of the handle from its rest position causes an arcuate portion of the annular member to press against at least one of the switches. The annular member thus actuates selected switches depending on the direction in which the handle is displaced by the operator.

Abstract: A diverter switch comprises at least two contact pairs, each pair having a fixed contact and a movable contact. The movable contacts are movably arranged on a pivoted current-carrying contact carrier. Each movable contact consists of two contact elements pressed by means of springs against the contact carrier on either side thereof. The current-carrying capacity of the movable contacts can be improved by means of silver plates arranged between the contact elements and the contact carrier.

Abstract: A remote operation device for operating a plurality of remotely positioned electric parts simultaneously by an actuation of a single operation member. The device has the operation member, interconnection members each having a flexible sleeve and a metallic belt slidably received by the sleeve, and operated members connected to the operating portions of the electric parts. The metallic belts of the interconnection members are superposed at their one ends to one another and are secured commonly to a movable connection member slidably mounted in the operating member, while the other ends of the metallic belts are connected to movable connection members slidably received by respective operated members. As the signal movable connection member of the operation member is moved in one direction, the movement is transmitted through respective metallic belts to respective operated members, so that the electric parts are operated simultaneously.

Abstract: An electric switch having two pushbuttons for rocking a pivotal actuator alternately in opposite directions for alternately closing double-throw contacts. The pivotal actuator is snap-in assembled to a switch frame which is snap-in assembled to a switch base or housing that supports the contacts. The two pushbuttons are alike and are guided in their vertical reciprocal motion by the switch frame and by one another. To allow use of minimum height pushbuttons while having ample finger-engaging surface, the pushbuttons are provided with like but complementary guiding structures integrally molded thereon to guide one another in their relative vertically reciprocal movements without binding or "window-locking" with respect to one another or the switch frame.