Abstract: The relay includes an "L"-shaped yoke and a cylindrical solenoid core mounted at end thereof in a hole in the short arm of the yoke. The other end of the core is terminated in a pole plate which engages one leg of an angle armature which is pivotally mounted at the end of the long arm of the yoke. The other leg of the angle armature is biased toward the long arm of the yoke by a flat leaf spring. The spring is mounted at one end thereof to the long arm of the yoke and includes a free end which projects through a slot in the other end of the angle armature for engaging a flattened portion of the angle armature at the apex edge of the angle armature. Upon deactivation of the relay, the angle armature is swivelled away from the pole plate until the flat spring is flatly applied to the flattened portion of the angle armature, thereby defining the deactivated end position of the armature.

Abstract: A windshield wiper motor control circuit for controlling a motor which is normally operated in either continuous or intermittent modes and wherein during the intermittent mode the motor is responsive to a voltage source controlled by a pulse generator. In response to low motor speed and voltage conditions and during overload conditions, the control circuit reverts to intermittent operation and the duration between pulses is adjusted to prevent overheating or destruction of the motor.

Abstract: A fiber optics level sensor (FOLS) or flow sensor (FOFS) system for use in hazardous environments, process control, and industrial and environmental control applications. The system includes a pair of fiber optic bundles arranged between a remote sensor and a control module. The remote sensor detects the position of a movable vane--which is mechanically coupled to a float in the sensed environment--by means of a transmission gap between confronting ends of the pair of fiber optic bundles. The control module includes a light output device driven by an oscillator which thereby generates pulses of light which are optically coupled to the end of one of the bundles. The end of the other bundle is coupled to a photodetector which generates electrical pulses in response to the returning light pulses. The electrical pulses are amplified and then gated through a sampling circuit which is internally synchronized by means of and in resonse to the oscillator.

Abstract: A circuit arrangement for windshield wiper motor protection including circuits for pulsing the motor with a variable pulse interval pattern. The pulse interval is generated by circuits which are responsive to motor speed from a comparison with a reference. The motor is automatically deenergized when it is overloaded or stalled.

Abstract: A splice connector for connecting adjacent ends of primary distribution system cables. The connector includes a unitary splice body of molded elastomeric material including a generally longitudinal portion for receiving the cable ends from opposite sides thereof. The assembly includes a semiconductive insert sleeve for surrounding the conductor connection of the cable ends, and a substantially continuous semiconductive outer jacket. The jacket and insert sleeve are separated by a portion of insulating material the axially outer ends of which extend past the ends of the insert sleeve for engaging insulated portions of the cable ends. The insert sleeve is provided with a plurality of axially and circumferentially extending and radially inwardly directed protuberances which yieldably engage the crimped connection of the cable conductors. The ends of the jacket include similar protuberances which engage the conductive jacket portions of the cable.

Abstract: A twist-on connector for electrical wires and the like comprises a hollow plastic shell having an opening at one end, a generally perpendicular closed end wall at the other end thereof, and one or more wing-like torque applicator ribs extending generally radially outwardly in an oblique angular direction from the external surface of the shell. The torque applicator rib or ribs of such configuration to permit flexing or cushion action to applicator's fingers, or torque limiting means during tool application of connector. The inside surface of the shell is provided with a plurality of longitudinally inwardly extending ribs which function to funnel an insert spring which is threaded into the shell, and to reinforce the body of the shell. The inner end of the spring engages an insert torque applicator stop at the closed end of the shell which transfers the torsional forces applied to the shell body to the outer end of the insert spring.

Abstract: An insulating and sealing sleeve for use with bus bar connectors of underground power distribution systems. The sleeve includes a generally cylindrical elastomeric body having internal sealing rings at one end thereof for sealingly engaging the bus bar and a reentrant and generally flexible constricted portion at the other end thereof. The axially inner end of the reentrant portion includes a tubular portion which extends axially outwardly and joining a tapered portion which flares outwardly and which terminates at the other end of the sleeve. The internal surface of the reentrant portion includes a plurality of grooves along the tubular and flared contours and which sealingly engage the insulation portion of a conductor which is mechanically fastened and electrically connected to the bus bar. The internally tapered grooved portion accommodates a relatively wide range of conductor sizes and the tubular portion ensures that a plurality of grooves will sealingly engage the minimum conductor size.

Abstract: Snap action switch with a sheet metal spring divided by slots into two or three coherent strips, one of which is shortened by way of bending. The bending is effected by clamping the strip between abutments formed by the upper and lower part of the housing. In this way a definite bending of the sheet metal spring is obtained.

Abstract: The wedge connector includes a longitudinally extending spring member which is generally C-shaped in cross section and which is tapered along its longitudinal length. A correspondingly tapered and longitudinally extending wedge member is insertable into the spring member and includes a pair of arcuately shaped retaining extensions along one side of the wedge member. The wedge member includes a plurality of longitudinally extending threaded bore holes for receiving a bolt which extends perpendicularly through the spring member wall. Accordingly, the wedge connector can be bolt-assembled or impact-tool-assembled by respectively reversing the position of the wedge member.

Abstract: A method for the replacement of worn damping parts of a wheel suspension system comprising a housing with a closed bottom and a non-dismantable top cover wherein the original housing is salvaged by removing a part of the top side of the housing and drilling a hole into the bottom. A complete replacement shock absorber is inserted into the housing and fastened through the bottom hole of the housing.

Abstract: A locking device for securing a wheel cover to a vehicle wheel rim, wherein the wheel cover includes a mounting plate having a retention device for mounting the cover to the rim, and a center cap mounted to the mounting plate. A first threaded fastener is mounted to a central portion of the wheel rim and projects axially outwardly through an opening in the mounting plate. A tubular member is mounted to the center cap and extends axially inwardly from an access opening therein and coaxially with the fastener. A second threaded fastener is slidably mounted within the tubular member between the center cap and the mounting plate and threadedly engages the first fastener. The second fastener includes a torque tool engaging portion at the outer end thereof which is accessable through the access opening in the center cap.

Abstract: This invention refers to a circuit arrangement for a motor for the purpose of driving a window in motor vehicles comprising a motor current supervising stage for switching the motor in case of blocking, wherein the motor current supervising stage responds to a change in time of the motor current. The dynamic supervising of the motor current offers a greater reliability than the known static supervising of the motor current. The circuit senses a rapid change in motor current to indicate that the window has met an undesired (e.g a human) obstacle.

Abstract: A dual splitter/combiner network for a single channel duplex radio transmitter/receiver has a length of transmission line 1/8 wavelength electrical length at the carrier frequency with a diode detector connected thereto at each end. A local oscillator, which is frequency modulated in the transmit mode, is connector to one end of the transmission line and an antenna to the other end. Signals from the antenna, in the receive mode, mix with the oscillator output and the difference frequency output signals at each detector will be in quadrature, suitable for subsequent processing in a direct conversion (zero I.F.) receiver circuit. In the transmit mode the frequency modulated local oscillator signal is transmitted from the antenna.

Abstract: A multiple indent die device for use with compression tools for crimping ductile tubular connectors on cables and the like. The device includes a pair of opposed die holders adapted for mounting between the ram and anvil of a compression tool for movement toward and away from each other. Each die holder includes a constrained indentor die which moves relative to the other indentor die and solely in the direction of movement of the die holders. A first movable indentor die is pivotally mounted to one of the die holders and about an axis which is parallel to the axis of the tubular connector and engages an inclined surface on the other die holder for radially inward movement toward the axis of the tubular connector and generally between the constrained indentor dies as the die holders are moved toward one another. A second movable indentor die is similarly mounted to either one of the die holders for engaging an inclined surface on its opposed die holder.

Abstract: A bushing plug for power distribution systems and of the type having a stationary female contact for receiving and making electrical connection with the arc-follower terminated male electrode of an associated elbow connector. The bushing plug includes an elastomeric housing which receives a tubular metallic insert body therein. The inner end of the insert body is connected to an external terminal by way of a threaded fastener. A female contact is press-fitted into the lower end of the insert body and a tubular arc-snuffer member is slidably mounted within the insert body for movement toward and away from the female contact. The arc-snuffer includes a pair of movable contacts respectively mounted within a pair of radially opposed slots in the inner end portion thereof. A camming ring is mounted within an annular groove provided along the inner surface of the insert body and between the female contact and the male electrode receiving opening of the housing.

Abstract: The apparatus and method disclosed herein provides a phantom draw bead in a generally flat, aluminum sheet metal blank which is ultimately formed into the ornamental cover member of an automotive wheel cover. The material of the draw bead functions as a conventional draw bead to secure the blank during the forming process, but becomes an external, visible and integral part of the finished product of the process. In working the process, the aluminum blank is inserted between the cooperating dies of a blank-and-draw press. The dies are then closed to form the phantom draw bead along the outer annular margin of the blank, and, thereafter, to draw the blank over the stationary die. The drawn blank is thereafter slightly trimmed and inserted between the cooperating dies of a restrike press, and the dies are closed to form the final profile of the cover member wherein the finished surface includes the material which previously provided the draw bead.

Abstract: The quantity of fuel being in a tank of a motor vehicle is computed in an evaluation circuit to which two primary element signals are supplied, of which one is proportional to the quantity of fuel filled in at the service station and the other is proportional to the quantity of fuel consumed. The evaluation circuit provides an output signal indicative of the difference between the fuel in and fuel consumed. Accordingly, the shape of the fuel tank does not influence the exactness of the measured value. One signal is available from which the fuel consumption as a function of time can be sensored and which is indicated at an indicator integrated into the speedometer.

Abstract: A hollow bus bar connector for use with cable conductors of a power distribution system. The bus bar includes a plurality of terminals extending from a common bar for mechanically engaging and electrically connecting said terminals to said bus bar connector. The bus bar is formed in a casting operation in which a plurality of cores are respectively provided in the terminal and common bar portions of the connector. The resulting casting exhibits a uniform hollow cross-sectional area in which shrinkage of and porosity in the external surfaces of the connector are substantially avoided. Accordingly, the resulting bus bar connector is lighter in weight and the external surface thereof provides for a more uniform application of insulation to the connector.

Abstract: A shock absorber comprising a cylinder which is divided into two chambers by a piston slidably mounted therein. A casing surrounds the cylinder and forms a reservoir therebetween. The reservoir is divided into two chambers by a ring-shaped seal having a restricted opening therein. A cap closes the upper ends of the cylinder and the casing and guides the piston rod through a piston rod packing therein. A pipe connects the lower portion of the cylinder to the restricted opening and includes a one-way valve therein. A ring-shaped chamber in the cap surrounds the piston rod adjacent to the piston rod packing and communicates with the upper reservoir chamber. This structure permits the damping fluid which leaks around the piston rod to drain into the upper reservoir; and upon the buildup of heat-related pressure at the piston rod packing, the one-way valve opens to relieve the pressure.

Abstract: A pushbutton switch of the type utilizing contact blades. The blades are the fixed contacts of the switch and consist of a U-shaped contact part and a straight connecting part joined therewith. The connecting part extends through an opening in the base of the U-shaped contact part and projects from opposite sides of the switch housing. Accordingly, the respective parts can be made of different materials and in an inexpensive and simple manner.