Abstract: The relay has a magnet system with an armature that operates on a switching spring via an actuating element. This switching spring has a frame-shaped contact spring as well as a fork-shaped reset spring, intermeshed in one plane and mutually decoupled, whereby the reset spring guides the actuating element via at least two linkage points lying in a line parallel to the pivot axis. The relay of the present invention provides a compact construction with few individual parts and a very low-friction operation.

Abstract: A linear acting ball latch is released by a rotary latch release member in the form of a rotor for a high torque, short stroke rotary electric motor which is electrically energized through a capacitor discharge system to release the latched member for spring biased movement into engagement with a bridging contact, thereby forcing the contact open from stationary contacts. A clapper type armature drives the contacts between open and closed positions through tubes, one of which extends through the latch mechanism. The tubes have spring biased plungers connected with the movable contact member to provide a low gradient spring force to the contacts permitting separation by the latch tube assembly and providing contact pressure when the magnetic operator closes the contacts. A manually operable handle and reset cam are disposed over the rotary latch mechanism and have mechanical connection with the latch release rotor to provide for manual operation of the release and for manual resetting of the latch mechanism.

Abstract: An automatic electric load transfer switch incorporates an over-the-center spring mechanism to operate switch contacts. The spring mechanism has a first position at which the electric load is connected to one electricity source and a second position at which the load is connected to another electricity source. The spring mechanism is driven by a solenoid activated cam shaft. An apparatus is provided for halting the movement of the spring mechanism at a position intermediate the first and second positions at which the load is not connected to either electricity source. The halting apparatus is releasable so that the spring mechanism can continue its movement between the first and second positions.

Abstract: A fail-safe solenoid switching mechanism (11) uses a reciprocating switch (15) to establish make-or-break connections. In order to increase the effective life of shorting bars on the switch, the switch's reciprocating part 23 is rotated by a ratcheting mechanism each time the switch (15) is cycled.Advantages include enhanced reliability, even when the switching mechanism (11) sees extended quiescant periods between operations.

Abstract: A switch comprises switch members movable in an operating direction for opening and closing an electric circuit, a solenoid drive for moving the switch members in the operating direction, the solenoid drive comprising an armature having an operating movement normal to the operating direction of the switch members and a core, a push rod whereto the switch members are coupled for movement therewith, the push rod comprising a gear rack, and a pinion segment meshing with the gear rack. The push rod and the pinion segment are located between the armature and the core and are surrounded thereby, the pinion segment is pivotal about an axis extending transversely to the push rod and is engaged by the armature, the operating movement of the armature pivoting the pinion segment and moving the push rod and switch members coupled thereto in the operating direction.

Abstract: A detent hold and release mechanism on a manually positioned valve controller which electrically signals a servo controlled conventional hydraulic control valve. The mechanism has a detented operating position and a spring-returned neutral position when the detent is released; the detent is held in operating position by a locking pawl urged by a permanent magnet. The mechanism is released by energizing an electro-magnet positioned adjacent the permanent magnet with reverse polarity whereby the combined magnet forces are neutralized, thereby releasing the pawl and allowing the valve controller to return to the neutral position.

Abstract: A remotely controlled circuit breaker system incorporates a generally conventional circuit breaker having latch means which are moveable in a first direction for moving an operating member so that it is latched in closed circuit position, the operating member being adapted to be independently moveable in the same first direction for unlatching the member to permit the member to return to its open circuit position. A momentarily operable solenoid has a pawl pivotally mounted on the solenoid plunger. Spring means resiliently hold the pawl against a stop in a selected location relative to the latch means so that when the solenoid is momentarily actuated while the operating member is in open circuit position, the pawl engages the latch means and moves the operating member to its latched closed circuit position.

Abstract: An electromagnetic relay switch assembly comprises, in combination, an electromagnetic coil, a movable plate of magnetizable material supported for pivotal movement between attracted and released positions, a drive wheel including a pawl member and being rotatable reciprocately in response to the movement of the movable plate, a carrier wheel having a detent gear and a ratchet gear. Each time the movable plate is moved from the released position to the attracted position, the carrier wheel is stepwisely rotated in one direction by the pawl member engaged to any one of the ratchet gear teeth. A detent pawl for avoiding the reverse rotation of the carrier wheel and a positioning member for accurately positioning the carrier wheel are also provided.

Abstract: A stepping relay comprising a base member to which every other component is mounted. On one side of the base member, mounted are a printed circuit board, a slider, and a dust cover. On the other side of the base member, mounted are an electromagnet, a ratchet, a positioning switch, and an interrupting switch.

Abstract: A blocking device for vehicle reel-type safety belts with a ratchet wheel to be connected to the reel of the safety belt, a pair of pivotal pawls engageable with the ratchet wheel to prevent rotation of the ratchet wheel and thus the reel in one direction of rotation of the reel, a mechanism operable by an abnormal change of speed of the vehicle, capable of pivoting one of the pawls into engagement with the ratchet wheel and then said one pawl pivots the other of the pawls into engagement with the ratchet wheel stopping the unwinding of the safety belt.