Abstract: A molded case circuit breaker has control terminals mounted on the front of the breaker and accessible from the front. A transparent plexiglass cover is positioned over the terminals to prevent inadvertent contact with the terminals and an opening is provided in the side of the casing for the egress of the control wires. With the control terminals on the front of the circuit breaker, an inspection can be performed without disconnecting power from the breaker.

Abstract: Electrical distribution apparatus, such as a pad-mounted electrical distribution transformer, which has an electrically grounded tank or casing. A surge arrester assembly includes a housing, and a draw-out surge arrester having first and second insulatively spaced electrical contacts, with the draw-out surge arrester being removably disposed in the arrester housing. The arrester housing has first and second insulatively spaced metallic end members, with the first metallic end member functioning as a mounting structure for mounting the arrester housing in a tank opening, and as an electrical contact which automatically connects the first electrical contact of the draw-out surge arrester to the grounded tank of the apparatus to be protected. The second metallic end member of the housing electrically connects the second electrical contact of the draw-out surge arrester to an electrical circuit point within the tank to be protected against voltage surges.

Abstract: A metalclad switchgear has three assemblies which are separately arranged in separate housings for housing a circuit breaker, a control line and a cable, all constituting the metalclad switchgear and which can be detachably coupled. The three assemblies are a circuit interrupting device, which can be designed for standardization, and a control line compartment and a cable compartment both of which can be designed in accordance with given specifications.

Abstract: A function selector knob is pivotally mounted on a function control lever which is pivotally and slidably supported by first pivot means. A pin and slot connection is provided between the lever and a vacuum electric selector switch. A convertible detent mechanism is provided for detaining the lever in either of two sets of detent positions, such sets having different numbers of positions, such as seven and five positions. Such convertible detent mechanism comprises a reversible detent carriage which is pivotally connected to the lever and is slidable along a guide channel having first and second sets of detent recesses on opposite sides thereof. The detent carriage has a detent ball or other member which is offset toward one side of the carriage, whereby the detent carriage is reversible between a first position, in which the detent member encounters the first set of detent recesses, and a second position, in which the detent carriage encounters the second set of detent recesses.

Abstract: A control switch assembly for cruise controls and the like includes multiple mounting adapters which facilitate mounting to a variety of vehicles. The switch assembly housing is a rectangular parallelepiped which defines a mounting structure. The mounting structure receives one of a plurality of interchangeable mounting adapters which engage various components of the vehicle and secure the switch housing thereto. For example, one mounting adapter facilitates mounting of the switch housing on the turn signal lever. Another facilitates mounting to a flat surface and still another replaces a portion of the turn signal lever with the switch housing.

Abstract: An auxiliary contact for field or factory addition to a contactor or motor starter of the type including a housing wall and an operator element movable between alternate positions upon activation. The auxiliary contact includes a body of insulating material adapted to be detachably mounted on an outside surface of said housing wall of the contactor adjacent the movable operator element thereof. A fixed electrical contact is mounted in the body and includes an externally accessible connector and a movable electrical contact also mounted in the body, includes an externally accessible connector. The movable contact includes a cam that is positioned to engage the operator element upon movement thereof in order to make and break contact with the fixed contact in response to activation of said operator element.

Abstract: A novel suspended tilt switch method and apparatus for use in transporting bulk material and including a switch assembly having a plurality of parallel connected, position sensitive switch elements mounted in a predetermined configuration to provide normally open operation with actuation of the tilt switch by closing of the contacts of at least one switch element upon tilting of the switch structure in any direction from vertical to a predetermined actuation angle, and further a novel unitary tilt switch hanger which encases the electrical conductors extending from the switch to protect the conductors continuously from the switch to the connected controller.

Abstract: An integrated circuit package having a plurality of leads capable of holding a quantity of solder paste prior to bonding to a printed circuit board or other substrate. The solder paste bearing structure may be straight or spiral grooves, or even a slot or roughened surface, running down at least the lower length of the leads as long as some mechanism is present which will first hold the solder paste or other electrically conductive binder on the lead and then deliver the binder to the end of the lead to produce an electrical and structural bond in a binder flowing operation. Application of the solder paste to the leads is accomplished by simply dipping the package leads into the paste thereby eliminating the need to make a solder mask for the substrate as well as the task of aligning the mask to the substrate.

Abstract: The distributor of the present invention includes a housing having condenser and points therein and having a rotor adapted to actuate the points for producing intermittent pulses of current at an outlet connector. A dielectric disk is attached to the rotor and is adapted to rotate in unison therewith. The upper surface of the disk includes a conductive sheet which covers only a portion of the upper surface of the disk. A cap is mounted over the distributor housing and includes a pair of contact points which are adapted to be engaged by the conductive sheet on the disk during rotation of the disk. The two contact points include leads which lead to the spark plugs of the engine. A single discharge coil includes a discharge post which is connected to a brush within the distributor cap. The brush extends downwardly through the cap and is in electrical connection with the conductive sheet at all times during rotation of the conductive sheet.

Abstract: An electrical switch on a chassis of a magnetic-tape-apparatus has a switching lever movable between a center switch open position, an unstable switched closed position to one side of center, and a stable switched closed position to the other side of center, with an over-center position between the center and stable closed positions. Spaced projections on a head-mounting plate engage the lever during movement between a playing position and a stop/ejection position, so as to cause the lever to move between the center and the stable closed position. With the plate in the stop/ejection position, an actuating rod can pass between the projections to move the lever to the unstable closed position and hold it in that position. When the plate is in the playing position, clearance of the projections from the lever is such that the plate can move a certain distance, for example for fast winding, without engaging the lever.

Abstract: A work surface structure having a power/communication module integral therewith. This module is hidden beneath a door which is flush with and forms a part of the top of the work surface structure. This module permits numerous power and communication (i.e. data) cables to be fed into the module for connection to appropriate connectors, and excess lengths of cable can be stored within a compartment of the module. Additional cable storage compartments are hidden below the top of the work surface for storing therein excess lengths of power/communication cables which extend from external locations to the module.

Abstract: A first insulating member has electrical terminals and may constitute a semi-conductor chip. A second insulating member made from a first insulating material may constitute a heat sink for the semi-conductor chip. Electrical leads may extend through the second insulating member to the periphery of the member. A mound formed from a mixture of electrically conductive particles and electrically insulating particles is disposed between the first and second members. The electrically conductive particles may have sizes to a few hundred microns. When the first and second members are pressed toward each other, the electrically conductive particles migrate toward one another to establish an electrical path to the electrical terminals on the first member and establish electrical continuity between the electrical leads and the electrical terminals. At the same time, the electrically insulating particles tend to at least partially envelope the electrically conductive particles.

Abstract: In a semiconductor module with a substrate having a plurality of semiconductor devices mounted on the top surface, an internal metallurgy system interconnecting the devices, an auxiliary set of conductive lines with periodically occurring surface connecting terminals, engineering change terminals with electrical connections to the device terminals and to the internal metallurgy system, the improvement beingengineering change devices,terminals on the engineering change devices to establish electrical contact with the engineering change terminals and the surface connecting terminals,a tailorable metallurgy system which permits establishing selective electrical connections between individual terminals of the engineering change devices, anddeletable surface lines on the substrate to selectively electrically isolate selected engineering change terminals from the internal metallurgy.

Abstract: A mask and an escutcheon are constructed as separate parts. The mounting section where the mask is attached to an internal chassis is formed with an elongated opening or notch for slidably receiving a mounting screw, so that the mounted position of the mask is adjustable longitudinally relative to a cathode ray tube. The outer periphery of the mask has a flange opposite to the back of the end portion of the escutcheon when the mask and escutcheon are mounted in position for covering a gap between the separate mask and the escutcheon, whereby any position variation of the separate mask relative to the fixed position of the metal fixture of the cathode ray tube will not disturb the front view of the cathode ray tube, since such variation merely changes the depth of the groove or gap between the separate mask and escutcheon.

Abstract: An insulating package premolded on a metallic frame with electrical contacts contains in an inner space a semiconductor chip which rests on a thermic dissipator and is connected to the electrical contacts. The inner space of the package is closed on top by a cover provided with a lateral extension with a bent end, which operates not only as a cover, but also as a means for fastening and thrusting the package toward a support surface.

Abstract: A multi-function actuator switch attaches onto an actuator of already assembled clutch assembly or the like with a simple sideways snap-fit, is fully enclosed when assembled onto the shaft, and is compact. The switch has a hollow housing with a longitudinal opening. The housing carries in its interior a driver member that snap-fits onto the shaft. A pair of coil springs held on guide arms urge the driver toward an initial position. The arms are mounted on a base plate that closes one end of the housing and also snap-fits on the shaft. A replaceable cover closes the longitudinal opening in the housing and locks the housing onto the shaft. The housing mounts a terminal board that carries a molded in place set of interior contacts that each connect with a terminal at the exterior of the housing. The driver carries a wiper contact that makes electrical connections between selected pairs of contacts as a function of its position in the switch to control the operation of circuits associated with those contacts.

Abstract: For each phase to be switched, there is provided at least one pair of fixed contacts consisting of an upper fixed contact and a lower fixed contact as well as one rotary or movable contact. The rotary contact is rotatable about an axis of rotation and is in constant engagement with one of the fixed contacts. The rotary or movable contact is supported on a support made of insulating material. The support is also rotatable. To reduce the torsion moment or torque required for turning the rotary contact to a minimum, the rotatable support possesses, in the vicinity of the rotary or movable contacts, a cranked or bent section in the form of a crank shaft in which an open-ended recess or aperture is provided for each contact. There recesses or apertures carry the rotary or movable contact.

Abstract: A safety switch for automatically interrupting a circuit when its main contacts are fused or stuck together in the "ON" position comprises a housing containing a pair of main contacts and auxiliary safety contacts which are normally closed but are automatically opened when the main contacts fuse together. One main contact is an "ON" contact, and the other main contact is carried by a movable switch arm. A first spring in the housing mechanically coupled to the movable switch arm normally urges the movable main contact into open position away from the engagement with the ON contact. Switch operating means include a movable actuator to overcome the biasing force of the spring for moving the movable main contact to closed position into engagement with the ON main contact for energizing a circuit controlled by the main contacts.

Abstract: A module for cooling equipment mounted in a frame. The module includes a plenum positioned between an upper portion and a lower portion of electronic equipment and a panel positioned across the plenum to occlude it. The panel is of multiplanar arcuate construction including a first, a second and a third panel portion each provided with an aperture in which is mounted to a fan. A pair of vanes between adjacent fans are provided. The vanes align themselves with the air flow from adjacent fans when both adjacent fans are operational and position themselves across the aperture of an adjacent fan when failed.

Abstract: .[.The invention disclosed a vacuum type electric circuit interrupter comprising a highly evacuated envelope which includes at least one metallic tube made of the magnetic material or the ferromagnetic material, a pair of relatively movable contacts disposed within said envelope in a location and means for eliminating the magnetodistortion of said metallic tube. This means comprises a magnetic flux generating member for supplying the magnetic flux to said metallic tube. The noise generated from the vacuum circuit interrupter is, accordingly, eliminated by means of a magnetic field applying member for applying previously the magnetic field to said metallic tube or by increasing the magnetic reluctance of the metallic tube..]. .Iadd.A vacuum type electric circuit interrupter comprises a highly evacuated envelope including at least one metallic tube made of magnetic or ferromagnetic material and a pair of relatively movable contacts disposed within the envelope.