Abstract: The present invention is directed to a switch device that includes a first switch portion that is configured to rotate a first angular amount in a first direction about a first fixed axis of rotation and has a first pivot arm length. The first and second switch are coupled to the interface portion. The second switch portion rotates a second angular amount in a second direction and has a second pivot arm length. The second angular amount is greater than the first angular amount and a function of the first pivot arm length and the second pivot arm length. A set of switch contacts includes at least one fixed contact and a movable contact separated by a predetermined minimum distance that is a function of the first pivot arm length and the second pivot arm length.

Abstract: A non-homogeneous cam includes an eccentric disk having side surfaces with an opening therethrough, and a cam surface disposed between the side surfaces. A first radius extending from a point within the opening to a number of first portions of the cam surface and second radii extending from the point to second portions of the cam surface define the cam surface. The first radius is greater than each of the second radii. The cam surface includes a first cam surface generally having the first radius and a second cam surface having a plurality of the second radii. The first and second cam surfaces define an angle of less than 90 degrees. The eccentric disk is generally made of a first material having a first strength. A portion of the eccentric disk between the first and second cam surfaces is made of a different second material having a greater second strength.

Abstract: A disconnector is disclosed, including a first operating element. The operating element is provided with a pivoting element, including a cam wheel which is in the form of a disk and has two opposite cams, with the rotation axis of this cam wheel which is in the form of a disk being at right angles to the axis of the first operating element, and with the cam wheel which is in the form of a disk having two protuberances, which can in each case make contact with the pivoting element in different operating states. In at least one embodiment, the disconnector includes a holding opening, which is arranged on at least one end surface, which is in the form of a disk, of the cam wheel which is in the form of a disk, and including a second operating element, which is fitted in the holding opening, with this second operating element having a body, an operating opening which is located in the center part of the body, and two vane pieces which are fitted on both sides of the body.

Abstract: The present invention relates to a railroad toggle switch for a plurality of switching positions, the toggle switch comprising a housing, an operating lever supported on the housing and having a pivot axis, a switching cylinder supported on the housing and having a rotational axis, a plurality of microswitches and an engaging mechanism for engagement of the operating lever in the switching positions. The switching cylinder is here provided with a plurality of cam disks for operating the microswitches. According to the invention the pivot axis of the operating lever is located in the area of the housing top side and is different from the rotational axis of the switching cylinder, the operating lever being in engagement with the switching cylinder.

Abstract: A wiring standard selector switch for use in a universal network cable system includes a baseboard made of an insulating material and a cover shaped and dimensioned to be connected to the baseboard. A switch actuator is mounted beneath the cover and has a portion which extends through a slot formed in the cover and is movable slidably along the slot of the cover. A plurality of circuit conductors carried by the switch actuator are disposed on the switch actuator so as to achieve paired electrical contact between a first and a second set of contact members on the baseboard. By moving the switch actuator slidably along the slot of the cover, at predetermined space intervals, the first and second sets of contact members engage the plurality of circuit conductors so as to establish a different complete circuit. Each of the different complete circuits corresponds to a different network wiring standard.

Abstract: A GU24 3-way dimmer knob-type switch lamp holder is disclosed, where the body of the lamp holder is provided with three contact plates at the two sides of its interior and on its bottom. And an insulating rotor and a rotor conducting plate therein is driven by a knob. The rotor conducting plate is shaped into four portions along its rim, where three of them come with a shaped contact plate, while the fourth is void. The insulating rotor and the rotor conducting plate are driven to rotate by turning the knob, which enables three contact plates in the body and three contact plates of the rotor conducting plate to form no conduction or different conduction modes that enable various levels of illumination: dim, moderate and high brightness after power ON and feature power OFF as well.

Abstract: A switch (50) is adapted to be On when a contact point (52) is at a position to be in contact with a cam surface (47) and Off when the contact point (52) is at a position corresponding to a non-cam surface (48). In the vicinity of the non-cam surface (48) of the cam surface (47), a rib (49) is provided which changes a direction of the contact point (52) when reciprocation of the cam member (43) is changed. Accordingly, even when the switch (50) comes into contact with the cam member (43) moving in a different direction, the direction of the contact point (52) is changed so as to be the same. Hence, the switch (50) is prevented from being affected by a hysteresis caused by difference in directions of the contact point (52).

Abstract: An ignition switch assembly connectable to a rotary shaft of a gas tap of a cooking device. The ignition switch assembly has a coupling element connectable to the rotary shaft of the gas tap, a fixed contact, a mobile contact, and a cam coupled to the coupling element which is configured to move the mobile contact relative to the fixed contact. The cam has a guide that is moveable within a groove of the switch assembly which controls the lateral displacement of the cam in relation to the coupling element so that the lateral displacement of the cam is controlled such that when the coupling element is rotated in a first direction, electrical contact between the mobile and fixed contacts is achievable, but when the coupling element is rotated in a second direction opposite the first direction the lateral displacement of the cam is controlled to prevent electrical contact between the mobile and fixed contacts.

Abstract: A disconnector is disclosed, including a first operating element. The operating element is provided with a pivoting element, including a cam wheel which is in the form of a disk and has two opposite cams, with the rotation axis of this cam wheel which is in the form of a disk being at right angles to the axis of the first operating element, and with the cam wheel which is in the form of a disk having two protuberances, which can in each case make contact with the pivoting element in different operating states. In at least one embodiment, the disconnector includes a holding opening, which is arranged on at least one end surface, which is in the form of a disk, of the cam wheel which is in the form of a disk, and including a second operating element, which is fitted in the holding opening, with this second operating element having a body, an operating opening which is located in the center part of the body, and two vane pieces which are fitted on both sides of the body.

Abstract: A micro switch is mounted onto a mounting base attached to a controller of an automatic icemaker. The micro switch generates a signal for controlling the amount of water to be filled in an ice tray. The micro switch is fixed to the mounting base by the first fixing member and the second fixing member. The first fixing member is inserted through a mounting hole formed in a case of the micro switch. The second fixing member is arranged on a surface of the mounting base on an opposite side of a surface mounted with the micro switch, and is fixed to the first fixing member.

Abstract: A contact spring assembly is provided for an electrical switching apparatus including a movable contact assembly and a stationary contact assembly having stationary electrical contacts. The movable contact assembly includes a carrier assembly, and movable contact arms pivotably coupled to the carrier assembly and carrying movable electrical contacts. The contact spring assembly includes a first contact spring housing member, a second contact spring housing member coupled to and disposed opposite from the first contact spring housing member, a spring guide disposed between and coupled to at least one of the first and second contact spring housing members and including spring holes, springs received in the spring holes, and sliders coupled to the springs. The springs and sliders individually bias the movable contact arms and movable electrical contacts toward engagement with corresponding stationary electrical contacts. A movable contact assembly and an electrical switching apparatus are also disclosed.

Abstract: A switch (50) is adapted to be On when a contact point (52) is at a position to be in contact with a cam surface (47) and Off when the contact point (52) is at a position corresponding to a non-cam surface (48). In the vicinity of the non-cam surface (48) of the cam surface (47), a rib (49) is provided which changes a direction of the contact point (52) when reciprocation of the cam member (43) is changed. Accordingly, even when the switch (50) comes into contact with the cam member (43) moving in a different direction, the direction of the contact point (52) is changed so as to be the same. Hence, the switch (50) is prevented from being affected by a hysteresis caused by difference in directions of the contact point (52).

Abstract: A cam switch assembly is actuated by movement of a member, such as a part of a convertible top that is pivoted about a first pivot axis toward and away from a surface that is fixed relative to the pivot. The cam switch comprises a holder for at least one switch that is attached to the member. A cam switch actuator having an arm is attached to the holder at a second pivot axis. The cam switch actuator opens and closes the switch as the cam switch actuator is pivoted relative to the holder about the second pivot axis. The arm has a first lost motion connection to the movable member in a first direction. The member has a second lost motion connection at the first pivot axis that is aligned with the first direction when the member is moved into engagement with the surface. The member is movable relative to the surface in a first direction and the arm is permitted to move relative to the surface without changing the angular orientation of the cam switch actuator relative to the holder.

Abstract: In a slide switch apparatus of the present invention, a click spring movable along a side surface portion of a housing includes an engagement portion that is engaged with a switch lever and can be switched in accordance with the movement along the side surface portion of the housing, a protrusion that generates a click feeling when moving along the side surface portion of the housing, a positioning rib, and a plate spring portion in which the engagement portion, the protrusion, and the positioning rib are placed and which can be deformed elastically. The positioning rib is placed between the engagement portion and the protrusion in the movement direction of the click spring. Because of this, a slide switch apparatus whose housing can be miniaturized is obtained.

Abstract: A hand operable switch includes an operating knob that is movable longitudinally or rotationally about a longitudinal axis of the hand operable switch. The operating knob is accessible from any circumferential location of the hand operable switch. A housing includes switching elements wherein movement of the operating knob moves an activation rod relevant to the switching elements for activating a switching element that corresponds to movement of a controlled device. A converter converts the hand operable switch into a foot operable switch.

Abstract: Signal Actuator device, having a support structure; a bottom drive shaft, tunable in a seat of the support structure; a first torsional coupling, integral with and surrounding the bottom drive shaft; at least a first cam torsionally coupled to the first torsional coupling in a selective manner for adjusting the angular position thereof relative to the bottom drive shaft; the at least one first cam actuating an electrical device supported by the support structure; a top drive shaft, torsionally coupled to bottom drive shaft in a selectively removable member; a second torsional coupling, integral with and surrounding the top drive shaft; at least a second cam torsionally coupled to the second torsional coupling in a selective manner for adjusting the angular position thereof relative to the removable top drive shaft; and the at least one second cam actuating an electrical device supported by the support structure.

Abstract: A switching apparatus having an actuating shaft, an actuator, at least one switch and a housing. A switching apparatus is in the form of at least one actuating guide which is connected with a first actuating guide portion to the actuating shaft and which with a second actuating guide portion at least partially embraces the actuating shaft at a predetermined spacing, wherein provided on the convex side of the second actuating guide portion is an actuating track for the switch or switches, insofar as at least one predetermined position the spacing between the outer peripheral edge and the actuating shaft is greater for a predetermined arcuate dimension than at other positions of the second actuating guide portion.

Abstract: A remote controller has a sliding switch which has more than two contacting positions linearly disposed, and a sliding lever to switch among the contacting positions. A slider engaged with the sliding lever and the slider has an angle portion. A first cam piece has a first V-shaped notch to fit the angle portion of the slider. The first cam piece corresponds to one or two of the contacting positions located in a central portion of the sliding switch. A second cam piece has a second V-shaped notch to fit the angle portion. The second cam piece corresponds to two of the contacting positions located on side portions of the sliding switch.

Abstract: A children's ride-on vehicle. The ride-on vehicle includes a frame adapted to support a child, and a drive assembly with a battery-powered motor assembly. The ride-on vehicle further includes one or more steerable wheels and one or more driven wheels. In some embodiments, the ride-on resembles a full-size motorcycle. In some embodiments, the ride-on vehicle includes a free-floating wheel, which is unbiased and travels within a defined range of positions with respect to the ride-on vehicle's frame as external forces are imparted to the wheel. In some embodiments, the ride-on includes a high-speed switch positioned for momentary high-speed travel of the ride-on vehicle and a user-manipulable portion may be provided to enable a child to select such a high-speed configuration. In some embodiments, the ride-on vehicle includes a simulated shock absorber and/or a passenger sidecar. Finally, in some embodiments, the ride-on may include wheel assemblies that simulate inflatable wheels.

Abstract: A microswitch with shifting gear, especially suited to set indication, alarm and urgent tripping in pointer type instruments, like pressure gauge, thermometer and so on. The microswitch includes a switch unit, a pressure bar (or lever), an actuator, and a shifting gear. The shifting gear is located near one side of the pressure bar. This shifting gear includes a cam and two forks (or arms) fixed on the cam. The location of the center shaft of the cam is fixed relative to the switch unit. On a circumferential portion of the cam, there are two contact points or two contact surfaces that have unequal distances from the center of the shaft. When a striking arm hits on one of the forks, the cam will rotate and change the contact point or contact surface that contacts the pressure bar, thus the functional mode of the switch unit can be changed. The pointer-type instrument has a pointer (or indicator arm) that indicates environmental conditions such as temperature or pressure.

Abstract: A switch mechanism comprising a housing in which a switch is mounted, the switch being actuable to switch between first and second conditions. A cam is mounted within the housing to rotate about a predetermined cam axis, the cam defining a cam surface against which a cam follower bears such that rotation of the cam causes displacement of the cam follower to activate the switch. An actuator shaft which may be connected to a safety rope is mounted to be axially displaceable within the housing, the actuator shaft being mechanically coupled to the cam such that axial displacement of the shaft causes the cam to rotate about its axis. The actuator shaft is positionable in an intermediate axial position in which the cam is rotatable to a predetermined rotational position such that the cam follower causes the switch to assume the first condition.

Abstract: A switch mechanism for use in for example a rope switch. The mechanism comprises a switch which is actuable to switch between first and second conditions, for example to turn on and off kinetic machinery. A cam follower actuates the switch, the cam follower bearing against the surface of a rotatably mounted cam. An actuator member is displaceable relative the cam and a linkage is provided between the actuator member and the cam such that displacement of the actuator member from a predetermined position causes the cam to rotate and actuate the switch. The linkage comprises a lever mounted on a pivot that is displaced with the actuator member, the lever co-operating with a surface of a stationary cam such that displacement of the actuator member causes the lever to pivot and rotate the rotatable cam.

Abstract: A brake actuator having a switch device mounted to an actuator housing with a C-shaped molded body and a C-shaped spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted at an open end of the molded body and spring member and comprises first and second electrical contacts which extend and electrically contact each other as long as the brake actuator rod has not traveled to the service limit. When the push rod ahs traveled to its service limit, a large diameter portion of the push rod forces the contacts apart thus opening the electric circuit.

Abstract: The invention relate to a position signaling layout for a motor drive which also serves to activate an on-load tap changer, an off-circuit tap changer or a plunger core coil. Position signaling devices of this kind detect the position at a given time of the on-load tap changer or similar and transmit this information in the form of an electric signal. According to the invention, the device consists essentially of a board on which there are fixed signaling contacts and a pivoted cam disc which connects said fixed contacts electrically and links them to a terminal lead via a spring operated switch, activating the spring operated switch by means of its front cam contour.

Abstract: An incremental travel encoder with an encoder part (11) and a sensor part for the sake of its economical production as a set-point value controller for operator equipment in motor vehicles, such as climate control systems, the sensor part has at least one electric switch with one fixed and one movable switch element for opening and closing a circuit for generating counting pulses, and the encoder part has a plurality of indexing members, which are disposed one after the other at the interval of an increment in the direction of motion of the encoder part. Upon each increment of the encoder part, one of the successive indexing members actuates the movable switch element in the direction of a temporary opening or closure of the electric switch.

Abstract: In an appliance such as an oven for cooking food, the invention contemplates a user rotatable, single knob oven control device which provides both discrete and continuous control signals to the appliance controller. The discrete outputs indicate selection of oven features, and the continuous output the desired baking temperature. These inputs are selected by a user in response to rotation of a user interface knob mounted on a control panel. The control panel provides visual indication of oven cooking temperature selections through a first arc around the knob, and user selectable oven features (such as, e.g., OFF/CANCEL, BROIL, and CLEAN) in a second arc around the knob. The control device comprises a hub having a portion adapted to be drivably coupled to the user interface knob. The hub also includes a flange which has at least one cam. The device also includes a variable resistance element having a rotatable shaft in driving engagement with the hub.

Abstract: A safety switch in which one piece of cam plate 1 (51) which rotates and moves the operating rod 6 (7) of the contact of the switch portion as the actuator 102 enters the operating portion 111 (511), and the lock plates 2, 3 (lock pieces 52, 53) are arranged on the side of the cam plate 1 (51) to form a lock mechanism for restricting the rotation of the cam plate 1 (51) so that the lock mechanism of the cam plate 1 (51) by lock plates 2, 3 (lock pieces 52, 53) is released and the cam plate 1 (51) is rotated only when the actuator 102 enters, thereby preventing the operating portion from being operated by any tool other than the special-purpose actuator. In one of the specific embodiments, the cam plate 1 is formed with recesses 1a, 1b and lock grooves 1c, 1d, and the lock plates 2, 3 are respectively formed with inclined surfaces 2a, 3a and engaging pawls 2c, 3c for fitting into the lock grooves 1c, 1d.

Abstract: A switch comprises a housing containing electrical contacts moveable from a power supply OFF position to a power supply ON position. A control mechanism is operatively coupled to the contacts, which contacts are operable by an actuator of predetermined configuration engaging with the control mechanism to change the status of the contacts. The control mechanism is moveable relative to the actuator in a direction transverse to the direction of insertion of the actuator to facilitate operative engagement therewith.

Abstract: A brake actuator having a switch device mounted to an actuator housing with a spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted to a first end of the spring member having first and second electrical contacts which extend and electrically contact a conduction plate attached to a second end of the spring member as long as the brake actuator rod has not traveled to the service limit.

Abstract: The present invention relates to a control and signalling device for a protective switching apparatus of the relay switch type which is provided with power switches (1) and a protection assembly (4) and is capable of detecting faults (overloads or overcurrents) on each current path associated with a switch (1), this device being actuated by a manual control member (51) which can take an operating "run" position corresponding to closed contacts, a "stop" position corresponding to open contacts and a "trip" position corresponding to the position after detection of a fault, characterised by the fact that it comprises a mobile spring loaded cam (52) actuated by a triggering spring (54) and capable of--from the "run" position in which it is locked by an automatic interlock (55) and after the triggering and release of the interlock (55)--of turning the manual control member (51) which then actuates the coil switch (81).

Abstract: A self contained limit switch assembly includes a gear box containing gears which mesh with a gear mounted on the shaft of a rotor. The gear box gears drive a cam. Limit switches, which are operatively connected to the motor's control circuit, are placed in the path of the cam to be actuated thereby. The limit switch assembly includes a housing which may be applied to an end shield of the motor, allowing the limit switch assembly to be applied optionally to any motor which may be incorporated into a product which requires use of a limit switch in the product's operation.

Abstract: A lock for mounting on a window jamb for selectively grasping a keeper on a window sash to secure the sash closed against the jamb, including a base for mounting to the jamb and defining an open interior space along one side of the base, a rigid plate secured to the base adjacent the open interior space and including a guide slot therein, and a motor driven drive gear pivotable within the open interior space about a first axis. A pawl is secured to the drive gear at one end for pivoting about a second axis spaced from and substantially parallel to the first axis, and includes a keeper grasping portion at its other end. A guide pin projects from the pawl and is slidably received in the guide slot whereby rotation of the drive gear moves the keeper grasping portion of the pawl between the open position and the locking position.

Abstract: A safety interlock for an overhead projector utilizes only one electrical switch to provide the functions of both a conventional power switch and a safety interlock switch. In an operational mode, the switch responds to a cam surface for actuation. In a safety interlock mode, the switch is allowed to rotate in response to forces generated by the cam surface rather than being actuated.

Abstract: A floor switch mounted on an elevator shaft wall has a housing from which a shaft extends. An arm has one end attached to the shaft and an opposite end attached to a roller. The roller is engaged by a switching vane mounted on an elevator car during up and down travel of the car in the shaft. As the car passes the switch, the vane rotates the arm and the shaft to move a lever which is coupled to actuate switch contacts in the housing. To avoid the engagement of the roller by the vane, a magnetic switch is mounted in the housing and is responsive to a magnet mounted on the car. The magnet mounted on the car passes the magnetic switch shortly before the vane is to engage the roller and the magnetic switch connects a coil in the housing to electrical power. The coil retracts an armature which is coupled to the lever to move the roller out of the path of travel of the vane.

Abstract: A pressure switch assembly has a preassembled spring capsule assembled onto a deck structure with a snap switch thereon to form a subassembly which is snap-locked into the cup-shaped housing. A rotary cam drum is provided in the housing with an external shaft for changing the setting. An adjustment lever has a bifurcated portion nested about the inner periphery of the cam drum and a threaded external adjustment is provided for moving the lever position against the spring capsule for calibration. The pressure switch is completely assembled from one side of the housing.

Abstract: A device is disclosed for sensing the rotary angle of a key-actuated lock system which contains a lock cylinder of a door or flap of a vehicle which is rotatable by way of a key. A follower is coupled to the lock cylinder via a driving coupling allowing a free-wheel rotational play and to a protection element of a lock and is rotatably mounted in a door interior. A switch-actuating part is rotationally coupled to the lock cylinder virtually free of play and is rotatable synchronously with the lock cylinder and a control switch which is switchable by the switch-actuating part at a specific rotary angle of the part and directly spatially adjacent thereto. The switch-actuating part is mounted behind the follower in relation to the lock cylinder on a carrier facing the interior of the vehicle and is fixed to the door or flap. A control switch is retained at least indirectly on the same carrier, and at least these two parts are sealed off relative to the door interior.

Abstract: An actuator shaft is journaled for rotation within a housing of the apparatus and is coupled to a rotary shaft projecting through the top of a valve or valve actuator. The actuator shaft is coupled to a drum having graphics information on an outer surface thereof, such as the words "open" and "closed". As the actuator shaft rotates the graphics information is also rotated past a window in a window member such that the words observed indicate the position of the valve. The window member couples to an alignment ring which is keyed to receive the window member. By rotating the alignment ring, the window member can be selectively oriented such that the graphics are viewable from a preferred perspective. Each of the components is keyed to be oriented with one another and constrained as a cartridge assembly which can be quickly removed as a single unit to access internal switches and circuitry, whereby the cartridge can be quickly reattached such that the components cannot be inadvertently incorrectly reassembled.

Abstract: An electrical switch which has a body, a contact base at one end of the body, a cam member positioned for rotation within the body, and a plunger positioned within the body for nonrotating movement. The cam member has a conductive bridge contact portion and has cam followers which engage the cam surface in the base to move the cam member between a make position in which the bridge is in contact with contacts on the base and a break position in which the bridge is spaced from the contacts on the base. The plunger has an actuatable pushbutton portion extending from the body and has driving portions which engage driven portions on the cam member to rotate the cam member upon nonrotating movement of the plunger. The plunger engages the cam member to provide a rotating first camming action, while the cam member engages the base to provide a nonrotating second camming action.

Abstract: An air control damper assembly for mounting in an air duct comprising a damper blade pivotally mounted within the air duct and means for rotating the damper blade from an open position to a close position. A drive system rotates the damper blade such that the system exerts a high torque and low speed at the beginning and end of the rotation of the blade from one position to the other and a low torque and high speed in the middle of the rotation of the blade between positions. The damper blade is locked in the open and close positions by means of a motor and gear unit. Electrical switches interfacing with a drive disk in the drive system partially controls the energization of the motor.

Abstract: A display unit for customers to inspect lighting fixtures being offered for sale, wherein the customer can easily actuate the lights present in the display for a finite period of time. A push-button control system is featured wherein the button activates a microswitch, which turns on a motorized timer circuit having a cam associated therewith. The lights on the display are electrically actuated when the microswitch is activated. The timer cam rotates until such time elapses as is required for the cam to recontact the microswitch. When contact is made again, the lights are extinguished, and awaiting the next activation.

Abstract: A mechanism for providing electrical or pneumatic signals indicative of the rotation position of a rotatable shaft includes a switch housing mounted on a base with a cam shaft passing upward through the base and supporting one or more cam elements for cooperating with electrical switches contained within the housing. The base is especially designed to support a flared drum on the outer surface of which are graphic characters viewable through a window on a fixed indicator cover and visible from above and the sides for visibly displaying the orientation of the rotary shaft. The mounting mechanism including a system of brackets and spacers permits the device to be used with a variety of devices incorporating a rotatable shaft.

Abstract: A central device has a housing and snap action means for discrete snap action movement between a stable configuration and an unstable configuration thereof. Means is provided in the housing for seating the snap action means, and means is also provided for urging the snap action means from the seating means. Force transmitting means is operable generally for initially moving the snap action means into seating engagement with the seating means and for thereafter effecting the discrete snap action movement of the snap action means from the stable configuration toward the unstable configuration thereof.

Abstract: The rotating cam limit switch includes a hub, a position screw arm, a position screw, a position wheel, a retractable cam, a dwell wheel, a dwell screw, a dwell screw arm, a spring wave washer and a locking ring. The hub is to be mounted on a rotating shaft which is to activate a non-rotating switch assembly. Near a first axial end, an integral position screw arm and position flange extend radially from the integral hub. The position screw arm carries a position screw, which is snap fitted onto the arm, which operatively engages the position wheel rotatably mounted on the hub next to the position screw arm. The dwell wheel is also rotatably mounted with respect to the hub. The dwell wheel is operatively engaged by the dwell screw carried by the dwell screw arm integrally formed with a dwell flange. The dwell screw arm is fixed to the hub by hub a anti-rotation device. The wave washer and the locking ring, mounted near a second axial end of the hub, compress the rotating components together.

Abstract: A cam roll pin assembly includes a cylindrical portion having an extending axle at each end for receiving a small roller and a relatively larger roller. The smaller roller is provided for engaging the cam surface on the contact assembly. The larger roller is received within a slot. Retaining rings are used to secure rollers on the axles. With such an arrangement the rollers are able to rotate independently. Thus, during a blow open condition, the contact points of the cam roll pin assembly can rotate in opposite directions without causing relatively large frictional forces on the cam roll pin which can slow down the blow open speed.

Abstract: The rotating cam limit switch includes a hub, a position screw area, a position screw, a position wheel, a retractable cam, a dwell wheel, a dwell screw, a dwell screw arm, a spring wave washer and a locking ring. The hub is to be mounted on a rotating shaft which is to activate a non-rotating switch assembly. Near a first axial end, an integral position screw arm and position flange extend radially from the integral hub. The position screw arm carries a position screw, which is snap fitted onto the arm, which operatively engages the position wheel rotatably mounted on the hub next to the position screw arm. The dwell wheel is rotatably mounted on the position wheel. The dwell wheel is operatively engaged by the dwell screw carried by the dwell screw arm integrally formed with a dwell flange. The dwell screw arm is rotatable on the hub but fixed to the position wheel. The wave washer and the locking ring, mounted near a second axial end of the hub, compress the rotating components together.

Abstract: The mechanism includes a housing containing a plurality of switches and a cam shaft which is frictionally coupled by a first clutch band to a pivotal brake lever. Two cam members, which are rotatable on the cam shaft, are frictionally connected by another pair of interconnected clutch bands to a clutch lever. The cam shaft and the two cam members are pivotal within certain angular limits in response to pivotal movements of the vehicle's brake and clutch, respectively, to control the brake lights, cruise control and a starting switch. If after prolonged use the angular throw of the clutch or brake exceeds the throw for which it was originally designed, limit means associated with the cam members and cam shaft cause the associated clutch band to allow relative angular rotation between the cam shaft or cam member and the associated brake or clutch lever.

Abstract: A cam follower is pivotally mounted on an electrical contact blade. The cam follower provides a ramp surface when engaging a step of the cam and a sharp drop off when dropping from a step. The ramp surface provides a smooth transition from a lower surface while the sharp drop off provides for a quick make and break of electrical contacts.

Abstract: A switch assembly for a geared limit switch for valve actuators is formed from aligned switch modules. The switch modules includes a pair of switch units, each switch unit having a plunger and a movable contact plate mounted between two springs. As the plunger is driven inward, a camming element on the plunger contacts an edge of an aperture in the movable contact plate, forcing the plate to move in a direction perpendicular to the line of plunger travel. The inward motion of the plunger and the camming action continue after the contacts have closed, wiping the contacts mounted on the movable plate across the surfaces of the stationary contacts. When the plunger is released, an outer edge of the movable plate engages a beveled inner wall of the switch unit housing, returning the movable contact plate to its original position.

Abstract: The hub of a camstack is in the shape of a cone. There are ribs carried on the cone surface with the ribs having cam surfaces that are substantially parallel to the cone surface. The camstack is particularly adaptable for actuating a plurality of individual switches in a direction at an angle to the central axis and to the lines normal to the central axis. The individual switches are carried by a single common support member. The camstack permits the building of less expensive, smaller and more reliable appliance timers.

Abstract: The invention is directed to an electric switch having a shaft (33) with a switching coulisse (36) comprising two circular segments, with control cams (60, 64) being disposed on the one circular segment and ratchet elements (66) being disposed on the other circular segment, which cooperate with a detent spring (75) and a contact spring (70). Because the circular segments are arranged i1 a common plane, a highly compact switch is obtained.