Abstract: A potentiometer has a parallelepiped casing provided with recesses for fitting connecting terminals which are secured to the casing by plastically deformed studs projecting outward from the casing. Slots are formed in the casing so that the ends of the terminals may project into the casing and be deformed into contact with a resistive plate within the housing. The collector preferably comprises a plate substantially coextensive with one face of the parallelepiped housing, and which is secured to the housing by deformable flanges formed at its edges. A central hole formed in the housing constitutes a bearing for the rotor-actuated cursor. Assembly of the potentiometer may be performed continuously by assembling the terminals, cursors and collectors on a continuous band. The resistive plate is preferably obtained from an electrically insulating substrate on which a resistive paint is first applied and then a silver glaze, with intermediate drying phases.

Abstract: A foot-operated controller is disclosed herein having a housing enclosing an elongated resistive element carried on the underside of a top panel midway between its opposite sides. The top panel is provided with a slot slidably accommodating an electrical contact in slidable engagement with the resistive element. A foot-engaging treadle is disposed on the top panel from which the electrical contact downwardly depends so as to travel therewith as the treadle moves. The treadle is provided wheeled support riding in a grooved track carried on a bottom panel of the housing. Stops are provided on the opposite ends of the grooves to limit linear movement of the treadle and electrical leads and plugs are included.

Abstract: An electromechanical component, in particular a rotary potentiometer having an integrated center click or optionally more fixed intermediate positions. The fixed intermediate position is obtained by a combination of two teeth and a lug. The two teeth are integrated with the element of the resistance path and the lug with the element having the contact members of the component.

Abstract: In a rotary electric device such as a trimmer capacitor or a variable resistor comprising a rotor contained in a case which is provided with an opening for receiving a screwdriver for rotating the rotor from the outside with a clearance being defined between an edge defining the opening and the rotor, a cover sheet is formed in a state covering the clearance and bonded to both of the case and the rotor, whereby the rotary electric device is closed. When the rotor is rotated in an adjusting stage, the cover sheet is readily broken and respective broken and separated parts of the cover sheet are individually retained by the case and the rotor.

Abstract: Tap or current collector for rotary or linear potentiometers, displacement pick-ups, variable resistances, brushes/collector junctions of electric motors, etc., wherein the tapping part on which the slider elements as such are mounted and which performs a relative movement with respect to the tapped path or collector carries the slider elements having individual resilient and freely movable slider fingers, at least in the contact area proper, and which are mounted on a mounting block in such a manner, relative to the sense of displacement, that irrespective of the sense in which the tap moves at any time, one of the slider elements is always pushed, and the other one is always pulled so that even the influences on the tapped or transmitted electric signal of dynamical effects developed by high accelerations are compensated.

Abstract: A potentiometer which includes a wiper element having a plurality of contact fingers each mounted for wipeable engagement with a cermet resistance element deposited on a ceramic substrate. The contact fingers of the wiper element are each bent so that the end surface thereof, as opposed to a circumferential surface, is in wipeable engagement with the resistance element.

Abstract: A potentiometer which can be used for measurement of angles includes an enclosure made of insulating material. The enclosure has a positioning portion comprising a pair of grooves to guide a resistance base plate into the enclosure. The enclosure is provided with a recess extending perpendicular to the plane of the base plate to rotatably receive the shaft portion of a sliding member. This sliding member further includes a slider which is brought into sliding contact with electrodes formed on the base plate. This produces a change in the resistance of a resistance member formed on the base plate.

Abstract: An electric potentiometer is proposed, which serves to convert a displacement movement into an electrical signal. The electric potentiometer has a wiper lever with brush wipers which upon a rotational movement about a pivot shaft stroke electrically conductive layers applied to a carrier plate. An electrically nonconductive layer is applied on the resistor layer such that in the region of the electrically conductive layer that is strokable by the wiper upon its deflection, a pickup zone which is narrower than the wiper and is defined on both sides by the electrically nonconductive layer remains uncovered by the electrically nonconductive layer.

Abstract: A voltage dividing resistor device comprises a pair of electrode terminals applied with a voltage, a plurality of resistor bodies coupled between the pair of electrode terminals, an electrode terminal through which a divided voltage is obtained from an intermediate point located among the plurality of resistor bodies, and at least one conductor part formed to overlap with a part of at least one of the plurality of resistor bodies. An effective length of the resistor body which has a part thereof overlapping with the conductor part, is shortened by a length of the conductor part. The length of the conductor part is set depending on the divided voltage which is to be obtained.

Abstract: A variable electrical resistance device for monitoring displacement of a mechanical component such as a vehicle road wheel suspension system having a housing; an electrically resistive track and conductive slip ring on a support in the housing; electrically conductive wipers on a rotatable carrier provided with a spindle for coupling to the component. The wipers traverse the resistive track and the slip ring respectively. The support is mounted on springs or flat strips of resilient metal, so as to be displaceable away from and towards the wipers. A solenoid, of double-acting type or acting in association with the bias of the springs, has an armature operating to effect displacement of the support away from and towards the wiper whereby contact between the wiper and track may be broken, or the contact pressure therebetween reduced, when monitoring is not required, thereby prolonging the life of the wiper and track assembly.

Abstract: A control assembly comprises a housing; a control lever extending from the housing and pivotally mounted therein; spring means arranged in the housing and effective to return the control lever automatically to a neutral position; and a potentiometer for converting movement of the control lever relative to the housing from the aforesaid neutral position to an electrical signal. According to the invention, the spring means (4) comprises two mutually connected tubular parts (8,9), between which the end of the control lever (3) located in the housing (2) is mounted for pivotal, but not rotational, movement, wherein in the neutral position of the control lever (3) the longitudinal axis of respective tubular parts (8,9) extends substantially at right angles to the longitudinal axis of the lever.

Abstract: A variable electronic component for use in a subminiature electronic circuit and adapted to provide a desired range of impedance characteristics. The variable electronic component may take the form of a variable trimmer capacitor, a variable resistor, and the like constructed to include an eccentric whose rotational motion imparts reciprocal movement to an impedance varying member. The eccentric is operative by engagement with an implement such as a screwdriver and the like.

Abstract: A variable resistor for use in a frequency regulator comprises an actuator having an intermediate portion pivotally supported by a casing, and a pair of opposite actuating end portions exposed from the casing. A pair of opposite feed pawls depend from the actuator to engage a rotor pivotally supported by the casing between the opposite feed pawls. The rotor has on peripheral edges thereof teeth meshing with the feed pawls, and carries a slider. A resistor base plate is mounted on the casing and has an arcuate resistor layer facing the slider of the rotor. The actuator is angularly movable in response to depression of one at a time of the actuating end portions thereof for turning the rotor in one direction through meshing engagement between the feed pawls and the teeth to thereby cause the slider to slide on the arcuate resistor layer. Therefore, the resistance of the variable resistor can be varied simply by pushing the actuator angularly back and forth.

Abstract: A slider arrangement comprises an insulator member, and two sliders each made of a resilient metal matel plate embedded in the insulator member and each having slender contacts exposed from the insulator mold member. The slender contacts of each of the sliders forms a pair of contact sets adapted to slide in contact with a resistive element and a collector member respectively, the pair of contact sets of one slider being located between the pair of contact sets of the other slider. A method of producing the above-mentioned slider arrangement comprises the steps of embedding a resilient metal plate having sliders into an insulator member, with contact forming portions of the sliders exposed, cutting off portions bridging the sliders and the contacts formed at the contact forming portions while holding the metal plate by the insulator member, and bending each of the contacts to its proper position.

Abstract: A rotary electric component such as a semifixed variable resistor comprises an insulating substrate having a shaft hole and a slot communicating with the shaft hole, a resistor mounted on the insulating substrate surrounding the shaft hole, a pair of electrodes mounted on the insulating substrate and connected to the resistor at ends thereof, the electrodes being positioned one on each side of the slot and prevented by the latter from shortcircuiting therebetween, a pair of terminals mounted on the insulating substrate and connected to the electrodes, respectively, a shaft rotatably mounted in the shaft hole and having a movable contact held in sliding contact with the resistor, and a body of synthetic resin filled in the slot. The body of synthetic resin is fixedly mounted on the insulating substrate and may include a support spacer disposed around the shaft hole and a protective cover covering attachment end portions of the terminals.

Abstract: A variable resistor element (10) comprises two thick film resistance layers or tracks (12, 14; 40, 50) electrically insulated one from another and on an insulating substrate (11). The thick film resistance layers (40, 50) may consist of the same resistance composition and thereby have the same resistivity, but the paths (40, 50) having different widths to effect different resistances; or, the widths of the resistance layers (12, 14) may be the same but the layers (12, 14) comprise different resistance compositions having different resistivities. An electrical contactor (20) has flexible fingers (22) wipably and respectively engaging the surface of each resistance layer (12, 14; 40, 50) to complete a circuit across the tracks (12, 14; 40, 50) and through the terminals (16 and 66) of the respective layers.

Abstract: A rotary variable resistor wherein a pair of levers are arranged in a case, a knife-shaped cam has its one end pivotally mounted on a projection of each lever, and the cam comes into engagement with a tooth portion of a toothed wheel in accordance with the operation of the lever so as to turn a slider holder. The moving stroke of the lever can be made small, and the slider holder can be turned every small angle.

Abstract: An abrasion-resistant screen-printed potentiometer includes top and bottom resistive layers screen-printed on a substrate. The resistivity of the top layer is substantially greater than the resistivity of the bottom layer. A slide arm is in pressure contact with the top layer and is slidably movable thereacross.

Abstract: A variable resistor whose operating shaft may be click set or stopped to a preselected angular position when a projection of a click spring, which is mounted together with a wiper arm on a wiper arm mounting member, drops into a click slot of a click disk fitted into a cover or a casing generally in the form of a cup. The click disk is rotatably fitted into the cover or the casing in such a way that a torque required for rotating the click disk relative to the cover or the casing is higher than a first torque required for releasing the projection of the click spring out of the click slot of the click disk when the operating shaft is in a first position, but is lower than a torque required for releasing the projection of the click spring out of the click slot of the click disk when the operating shaft is axially shifted from said first position to a second position.

Abstract: A variable resistor having a short-circuiting member which is displaced in response to the generation of abnormally high heat in the resistance member of the variable resistor with a piece thereof in contact to short-circuit the input and output terminals of the resistance member. This results in a bypass for large current, so that a protection circuit in an output amplifier is operated to suspend the generation of heat.

Abstract: A fader controlling variable resistor adapted to adjust the balance in sound volume of the right and left loudspeakers, or the front and rear loudspeakers. When abnormal heat is generated in a variable resistor in a fader control circuit, the sliding piece of the variable resistor is disconnected from the resistance member by the utilization of a thermo-plastic resin of a low-melting-point material is readily deformed or molten by heat, to prevent a fire attributed to the generation of heat therein. In one embodiment of the invention, the sliding piece is maintained in contact with the resistance member against its elastic force by a protrusion of thermo-plastic resin. When abnormally high heat is generated in the variable resistor, the protrusion is molten, and the sliding piece is disconnected from the resistance member or the conductor.

Abstract: A variable resistor provided with a click mechanism comprising a metallic bearing, a slide member, a holder to which the slide member is attached, a leaf spring being placed in a cavity formed in the bearing. A protrusion formed integrally with the leaf spring being resiliently contacted with plurality of grooves for click which are formed in a bottom of the bearing.

Abstract: Disclosed is a variable resistor of the slide type incorporating a pair of resistor units carried on the same base plate and disposed in parallel with respect to each other. A plurality of conductive taps angle outwardly from a resistance member provided in each of the resistor units and a pair of sliders can be slidingly moved along and in contact with the series of the plurality of conductive taps in the pair of conductor units, respectively, but do not contact the resistance members directly.

Abstract: A slide-type potentiometer for speed control of electric motors under control of a foot-pedal actuator mechanism comprising an actuating rod reciprocatably movable in the longitudinal directions thereof, a spring member for urging the actuating rod in one of the longitudinal directions, a contact supporting member having an electrical contact secured thereto and mounted on the actuating rod so as to be movable in the longitudinal directions along with the actuating rod, a resistor element positioned such that the electrical contact member is slidably moved on the resistor element upon movement of the actuating rod, and a housing for enclosing the contact supporting member and the resistor element, the housing has a through-hole through which one end portion of the actuating rod extends outwardly.

Abstract: A variable attenuator comprises a generally horseshoe-shaped main resistance element, a sliding member movable thereover, and a bypass provided around that portion of the main resistance element adjacent the end portion of the path of said sliding member. The bypass is made of a conductive element or conductive element and a resistance element, the amount of current flowing through said bypass being thereby increased to enable a maximum attenuation.

Abstract: A wire-wound resistor has an adhesive applied to the wire and the insulative substrate upon which the wire is wound at a predetermined location. The wire is then cut or otherwise broken at that location to open-circuit the resistor. The adhesive holds the cut end of the wires in place on the substrate.

Abstract: An electromechanical transducer comprises first and second links pivotally connected to a base, an electrical resistance element in the form of a track mounted on the base and a wiper arm mounted at one end of the second link and slidingly engaging the track. The first link and the second link are so coupled that pivoting one link is operative to pivot the other link and the angle through which the second link pivots is substantially greater than the angle through which the first link pivots. By suitable selection of the shape and/or the resistance profile of the track, the angular movement of the first link may be arranged to be a particular linear or non-linear function of the resistance tapped by the wiper arm. A control unit incorporating the transducer is also described.

Abstract: A variable resistance slide control includes a housing having a front wall and having a side wall that is integral therewith. A dielectric base having a resistance element and a collector member mounted thereon is secured to the housing in spaced parallel relationship to the side wall. A contactor member engaging the resistance element and collector member is constrained to move with a slider that includes a handle portion projecting outwardly of the housing through an elongated slot which is defined by the front wall and the base. The slider includes a slider block portion with a guide groove therein interfitting with a longitudinal rail that is integral with the dielectric base, and the slider block portion slidably engages an inner surface of the side wall. A second rail is integral with the dielectric base and includes a guide surface that is slidably engageable with the slider block portion.

Abstract: A multiple slide resistor suitable for use as a tandem resistor in a stereo system is disclosed. The slide resistor comprises a housing having a slide slot in which a slide bar is arranged to slide along a guide rail. The resistance and collector elements of each resistor are mounted upon a conductive layer on one side of a base plate which forms a closure for the housing. A shielding wall is provided between the resistors for electrically isolating them. The wall is electrically connected to the conductive layer of the base plate so as to achieve a desired cross talk attenuation.

Abstract: This disclosure teaches apparatus for controlling two crossed proportional setting devices by means of a control stick. The control stick is seated firmly at a right angle on a first swivel axis which is supported in a frame swingable around a second swivel axis supported fixedly in the frame to intersect the first swivel axis in the same plane and at right angles thereto. On both swivel axes there are seated firmly radial extensions on the ends of which wiper contacts brush against strip shaped resistors formed in a circular sector around the first swivel axis. The resistors in their turn are fastened to the supporting frame of the first swivel axis.

Abstract: A turret-type controller includes a base with a plurality of resistive strips mounted thereon, each of which is associated with a conductive contact movable with respect thereto. A pair of annular conductive strips are also situated on the base, but axially spaced from the resistive strips. The annular conductive strips are each operably connected to a different end of the resistive strips by means of a conductive strip, one of which is at least partially situated on the underside of the base. Each of the resistive strips has a length preselected such that the change in the magnitude of the tuning signal required to provide a given frequency change in the tuner in different regions of the frequency spectrum is achieved through substantially equal variations in the conductive contacts associated with each resistive strip.

Abstract: A multiple output potentiometer network having a low resistance zone to provide the output function characteristic and a high resistance zone with which each of a plurality of output contacts is in contact providing a high degree of electrical isolation between the output contacts of said plurality.

Abstract: A contact spring, suitable for use in a variable resistance device having a resistance strip and at least one collector strip adjacent the resistance strip. The contact spring is formed in a unitary construction from a single piece of sheet metal and includes electrically conductive cantilever spring members which depend from a base member and are adapted for sliding electrical contact with the resistance and collector strips. Stiffly flexible, resilient means, preferably in the form of additional cantilever spring members disposed in cruciform relation to the contact spring members, depend from the base member to back up each of the contact spring members by engaging an intermediate portion thereof to retard flexing of the contact spring members toward the base member. The resulting contact spring is quite simple in construction, yet produces a substantially greater contact force with the resistance and collector strips than is achieved by simple cantilever contact spring arms.