Abstract: A combined trash receptacle is proposed to be used on dining tables in public restaurants, or at home for the ready disposal of paper and plastic items provided for sanitary reasons, which would otherwise tend to clutter the table top in an unsightly manner. The trash receptacle is provided with one or more openings on the side thereof for the insertion and disposal of trash, and is moreover combined with either an accompanying ashtray, lamp stand, candle holder or flower vase, which in each case preferably serves additionally as the lid or cover for the trash receptacle.

Abstract: An indicating composite sectionalized fuse is provided having a high-current interrupting section, and a mechanically-connected detachable low-current interrupting section in series therewith, with the low-current interrupting section including a pull-away indicating fuse-link cable, which indicates externally a blown condition of the fuse. The low-current interrupting section is replaceable, following a low-current interruption, which has no effect upon the high-current interrupting section, the latter remaining intact and may be further used. During high-current interruption, both sections are fused, and collectively contribute together to a quick interruption of the connected electrical circuit, again there being an external indicated condition of the blown condition of the fuse by an ejection of the fuse-link cable.

Abstract: A quick-acting movable-column tripping device is provided as an optional feature of either circuit-interrupters, supported by upstanding insulating column structures, or, alternatively, in connection with circuit-interrupters having a serially-related disconnecting switchblade, providing a visible open-circuit gap, so that a minimum of time is utilized in a tripping operation of the circuit-interrupter. Otherwise, there would be a considerably-delayed action caused by the normal, or inherent lost-motion provided in the loose linkages, which normally are used to effect operative movement of the movable relatively massive supporting column structure.The quick-acting, accelerating tripping device of the present invention provides relative fast motion between the upstanding rotatable supporting column structure and a base-spindle device, the latter of which is operatively mechanically linked to the motor-operated mechanism, for example, of the switch structure, which may be relatively slow in operation.

Abstract: An improved compressed-gas-type of circuit-interrupter is provided having a pair of separable contacts and a cooperating nozzle structure, through which the established arc is drawn. A spring-biased sleeve-valve surrounds at least one of these separable contacts, and extends at times into the orifice throat in the closed-circuit position of the device, and also during a portion of the opening operation, thereby blocking any gas flow through the throat of the orifice device in such blocking position of the sleeve-valve.

Abstract: An improved operating mechanism of the energy-storage type is provided for circuit-interrupting structures, including an energy-storing means having the energy content therein increased by the movement of a movable member during the closing operation, and a collapsible toggle-linkage is provided between the energy-storing means and the separable arcing contact structure of the circuit-interrupter structure. Improved means are provided for a tripping operation, and thereby effecting the collapse of said toggle-linkage to effect the opening of said separable contact structure, and a second releasing means is preferably provided for discharging the stored-energy of the energy-storing means to effect thereby the straightening of said toggle-linkage and the consequent closing of the separable contacts within the circuit-interrupter during the closing operation.

Abstract: An improved gas-type circuit-interrupter is provided utilizing a mixture of helium and sulfur-hexafluoride (SF.sub.6) gases, with the percentage concentration of sulfur-hexafluoride (SF.sub.6) gas being 10%, or less, by volume.The improved gas-type circuit-interrupter of the present invention may be utilized to advantage as a "puffer-type" circuit-interrupter, in which relative movement between a piston and operating cylinder takes place for forcing the compressed gas to flow through a suitably-located orifice, or nozzle member, and into intimate engagement with the established arc disposed therein to effect its extinction.Another form of the gas-type circuit-interrupter of the present invention may include a pressurized gas-reservoir chamber containing the aforesaid admixture of the helium and sulfur-hexafluoride gases in the proper concentration, that is 10%, or less, by volume, of sulfur-hexafluoride (SF.sub.6) gas with the remaining being made up substantially entirely of helium.

Abstract: A resistor assembly, together with a serially-connected resistor break, is connected in parallel, or shunting relationship, to an interrupting assembly, and arranged so that the resistor contacts remain closed while the main power-interrupting contacts open, and thereby divert the series line current through the resistor assemblage. This reduces the magnitude of the power-transmission line-current being interrupted, and lowers the rate of voltage rise across the main contacts so that arc reignition does not occur.During the closing operation of the circuit-breaker, the mechanical operating arrangement is such that the resistor contacts close prior to the closing of the main power interrupting contacts, so that any voltage surges occurring during the electrical charging of the transmission line are adequately controlled.

Abstract: A tank-type compressed-gas circuit-interrupter is provided utilizing line-to-ground capacitance means disposed within a grounded metallic tank structure controlling the rate of rise of the recovery voltage and serving an additional function of assisting to rigidly support the circuit-interrupting assembly within the grounded metallic tank.

Abstract: An improved modular, puffer-type circuit-interrupting unit is provided capable of its own independent support, and adaptable for use, either as a singular modular unit, or when used with a plurality of similar units, constituting a conjointly-acting group of serially related puffer-units suitable for the higher-voltage applications.The modular puffer-unit of the instant invention is capable of independent support, and is adaptable for very simple straight-line actuating movement, for not only causing contact separation, but also a simultaneous compression of the utilized gas to a pressurized state for gas ejection into the established arc for rapid arc extinction thereof.

Abstract: An improved interrupter-head construction is provided composed substantially entirely of a non-magnetic stainless-steel shell, and, preferably, additionally painted, or coated with a suitable coating, such as, for example, an epoxy primer coat and desirably, although not necessary, a second finish enamel coating.

Abstract: An improved, multi-function, stationary-contact-and-voltage-shield structure is provided for a high-voltage gas-puffer-type circuit-interrupter, in which the surrounding metallic shield provides a smooth, low-gradient voltage shape, collecting and cooling the dispersed hot arced gases, generated during the interrupting operation at the arc, by the provision of selectively-located venting cooling port holes provided in the metallic shield structure and also in the stationary contact structure.The arrangement of the enveloped stationary contact and surrounding main stationary contact fingers, together with the outer, encompassing vented metallic shield arrangement is such as to provide an improved highly-efficient single-pressure puffer-type high-voltage circuit-interrupter.

Abstract: An improved oil-pumping piston-assembly is provided for an oil-type circuit-interrupter to improve the interrupting performance during low-current conditions, having an improved hydraulic-dashpot action occurring during charging and discharging oil, incorporating, additionally, a "floating" piston design, and reducing the mechanical impulse forces exerted on the cylinder when high-current interruptions are made with an improved check-valve construction.The improved oil-pumping piston-assembly of the present invention is particularly adapted for the inclusion therewith of an auxiliary shunting separable-contact structure, which will, when desired, increase the current-carrying capability of the circuit-interrupter. Its inclusion, or exclusion, is optional, depending upon the current rating desired by the utility customer.

Abstract: A tank-type oil circuit-breaker has a pair of arc-extinguishing grid-structures disposed interiorly within the oil tank, each of said arc-extinguishing grid-structures having a pair of outwardly-directed horizontally-laterally-spaced venting ports, with the angular direction, or divergence between the two horizontally-spaced venting ports of somewhat critical angular magnitude.The construction is such that the two spaced venting ports on each arc-extinguishing grid structure collectively produce a resultant inwardly-directed jet force, which substantially counterbalances the outwardly-directed magnetic and mechanical forces resulting from the U-shaped line-current flow passing through the circuit-interrupter.The angular separation, or angular divergence provided between the two horizontally-laterally-spaced venting ports of each arc-extinguishing grid-structure falls within the range of angular magnitude of 80.degree. to 160.degree.. A desirable divergence range is between 100.degree. and 140.degree.

Abstract: An improved operating mechanism of the energy-storage type is provided for circuit-interrupting structures, including an energy-storing means having the energy content therein increased by the movement of a movable member, during the closing operation and a collapsible toggle-linkage is provided between the energy-storing means and the separable arcing contact structure of the circuit-interrupter structure. Improved means are provided for tripping operation, and thereby effecting the collapse of said toggle-linkage to effect the opening of said separable contact structure, and a second releasing means is preferably provided for discharging the stored-energy of the energy-storing means to effect thereby the straightening of said toggle-linkage and the consequent closing of the separable contacts within the circuit-interrupter during the closing operation.

Abstract: An improved switch construction is provided having an overcenter-toggle mechanism for effecting the actuation of the one or more movable contacts of the switch. A pivotally-mounted operating lever carries one end of a toggle-tension spring, the other end of which is pivotally connected to the knee-joint pivot of a pair of pivotally-connected toggle links. The line of action of the force of the toggle-tension spring is such as to effect a straightening, or a collapsing of the pivotally-connected toggle-links, to thereby effect, respectively, a closure of the switch contacts, or an opening operation thereof.Preferably, a releasable rotatable support, or trigger is provided for the pivotal connection of one of the toggle links, so that a remote tripping operation is possible by an unlatching of the releasable support, which normally provides a stationary pivot for the toggle linkage of the mechanism.

Abstract: An improved closing resistor support is provided for the closing resistances of high-voltage high-power compressed-gas circuit-interrupters in which the formerly-used insulating straps are completely eliminated, and consequently the voltage conditions are thereby improved to thus withstand a much higher-voltage breakdown capability during the closing operation.A metallic ring is preferably utilized at the front end of the circular closing resistance assemblage and provides a uniform compression of the individual resistor coils and, additionally, provides a desirable electrical field condition at the resistor assemblage.

Abstract: A high-voltage gas-type circuit-interrupter is provided utilizing a pair of serially-related puffer-type circuit-interrupters mechanically connected together, and operated by a single common operating rod. The stationary contact structures may be supported by rods attached to the interrupter support plate, or, alternatively, by a pair of terminal-bushings extending downwardly interiorly within a surrounding metallic tank at ground potential, for example.The operating arrangement may be such as to involve a linearly movable generally vertically extending common operating rod actuated externally of the grounded gas-filled tank by a suitable operating mechanism.Preferably, the individual puffer-type gas interrupters each involves the linear-slidable operation of a movable operating gas-compression cylinder, carrying the movable contact structure and an insulating nozzle orifice movable over a relatively stationary fixed piston structure.

Abstract: A fusible device is provided, of the generally-enclosed type, having an improved granular filler material surrounding, or encompassing the one or more fuse links. Preferably, the granular filler material comprises sand and alumina trihydrate (Al.sub.2 O.sub.3.3H.sub.2 O). Another filler material, which gives roughly half the improvement of the aluminum trihydrate, is aluminum monohydrate (Al.sub.2 O.sub.3.H.sub.2 O) in varying proportions.Of less satisfactory performance, as admixed with the sand, was hydrous alumina silicate (Al.sub.2 O.sub.3.SiO.sub.2.XH.sub.2 O) (unfired lava), and of still less satisfactory performance, is a slight amount of free water physically admixed with sand, although its physical location within the sand is questionable, and such a fuse is of low interrupting reliability.

Abstract: A coupling flex-plate member comprising a circular metallic member having a centrally-disposed annular groove provided therein, providing a generally H-shaped cross-section, is fixedly secured to the confronting ends of adjacent inner high-voltage tubular conductors of a gas-insulated transmission line to permit a limited, but sufficient flexibility, of the inner conductor sections, or conductor buses. A low-strength high-conductivity material is used for the coupling flex-plate member, and permits an axial bending in a spring-like fashion until material yielding occurs. Inaccuracies during fabrication and assembly of the component parts are accommodated by the use of such a coupling flex-plate member without damaging adjacent components, especially spacing insulators, which are, of course, brittle and subject to fracture.

Abstract: An improved metal-clad gas-type high-power circuit-breaker construction is provided involving two upstanding circuit-breaker assemblages electrically interconnected adjacent their upper ends, and connected into the series line transmission circuit, preferably, adjacent the mid-portions thereof to pressurized laterally-extending power-transmission lines.Improved structure is provided for simultaneously supporting the interrupting modules, or units up in the air interiorly of an outer grounded metallic casing structure, and, additionally, providing a high-pressure gas-conduit path to the pressurized insulating casing structure surrounding the circuit-breaker modules, and spaced inwardly from the outer grounded metallic casing structure.Improved means are provided for increasing the electrical power capable of being interrupted by such a structure, when desired, involving a series closing resistance, which is inserted into the circuit only during the closing operation of the interrupter.