Abstract: This invention relates to a spring biased shifting pivoting center hinge for swinging doors wherein the hinge pin rigidly affixed to the first swinging half of the hinge pivotably and shiftably engages a slotted hole with a spring bias that is included in the second swinging half of the hinge. The spring bias resiliently retains the hinge pin at one extremity of the slotted hole when there is no external constraint as in the case of a fully closed or fully open swinging door fitted flush to the front face of the door frame. When the swinging door is pulled open or pushed shut, the edge of the door adjacent to the hinge interferes with the door frame and the hinge pin is forced to shift toward the other extremity of the slotted hole against the spring bias; whereby, the interference between the door edge adjacent to the hinge and the door frame is alleviated for the full range of the swing for the swinging door.

Abstract: This invention relates to a process for disposing of human waste wherein the liquid waste is evaporated off and the solid waste is dehydrated for easy disposal. A preseparating toilet bowl roughly separates the urinous wastes and the toilet rinse water from the fecal wastes and other solid wastes dumped into the preseparating toilet bowl. The liquid waste separated from the solid waste flows into an evaporator wherein it is evaporated into the atmosphere by means of air currents circulated through the evaporator. The solid waste drops into a dryer or incinerator wherein it is dehydrated by the heat or vacuum drying process, or a combination thereof, or incinerated by an electric heater or gas burner. The dried solid waste may be bagged and used as a fertilizer or it may be taken to a centralized incinerating plant.

Abstract: This invention relates to a check valve having a straight-through flow passage wherein a ball-plug of a cylindrical geometry with a hemispherical end is pendulously confined in a cavity included in the valve body. The ball-plug has a through-hole with the central axis substantially passing through the center of a spherical surface including the hemispherical end of the ball-plug, which central axis substantially intersects the central axis of the ball-plug in an oblique angle. The ball-plug is pendulously confined in the cavity within the valve body by a trunnion in such a way that the ball plug is allowed to swing on a plane including the central axis of the flow passage of the check valve passing through the cavity confining the ball plug and the central axis of the ball plug. At one extreme position in the swinging movement, the through-hole included in the ball plug lines-up with the flow passage allowing straight-through flow for the fluid from one extremity to the other extremity of the check valve.

Abstract: This invention relates to the slide connectors with locking means which are used to removably connect two boards in L-connection and/or three boards in T-connection and/or four boards in a cross connection. The slide connectors with locking means comprises an elongated member with four side surfaces having a retaining slide groove disposed in each of said four sides and a retaining slide rail matching to said retaining slide groove disposed on each end of the board to be connected into L or T or cross connections. One or both ends of said elongated member includes a threaded or a plain hole with a finite depth disposed at the center of the cross section of said elongated member, the cross section of which hole slightly extends into the root of said four retaining slide grooves; whereby, the crest of said retaining slide rail extends slightly into said hole.

Abstract: This invention relates to the dished discs employed in the construction of the free-disc or floating disc butterfly valves wherein the disc pivotably disposed in the valve body to block the fluid passage is shaped like a dish. The valve stem is mechanically connected to the convex side of the dished disc substantially near the center. The central axis of the valve stem substantially passes through the center of a hypothetical sphere that substantially includes the rim surface of said dished disc and the surface of the seat disposed in the valve body.

Abstract: This invention relates to a divert valve comprising a pair of disc valves operated by a common actuator wherein the tolerance in the mating between the valve seat and the disc in one disc valve disposed in the first bifurcating pipe is controlled independent of the other disc valve disposed in the second bifurcating pipe branching out from the first bifurcating pipe.

Abstract: This invention relates to the hoist means employing the principle of the scissor action between a pair of the structural frames pivotably coupled to one another.

Abstract: This invention relates to a friction-drive type mechanical transmission of continuously variable transmission ratios in a range comprising a plurality of the operational transmission ratios separated by a plurality of the transitional transmission ratios. The mechanical transmissions of the present invention comprises a pair of the conical rotating members connected to a pair of the power shaft couplings, respectively, which pair of the conical rotating members are coaxially disposed providing a void space therebetween comprising a series of the cylindrical shell voids of progressively varying diameters interconnected by a series of the frustum shell voids.

Abstract: This invention relates to direct acting rotary actuator cylinders wherein the linear motion of the piston is directly converted to angular motion by a means completely enclosed within the cylinder, which means comprises a slidable partitioning body engaging the circular cylindrical cavity in the cylinder in an air-tight sliding relationship and a circular cylindrical rod coaxially and rotatably disposed in said circular cylindrical cavity having a mid-section with a noncircular cross section of a diametrical dimension greater than the diameter of said circular cylindrical rod.

Abstract: A device called Solar Trap for concentrating and collecting the solar energy is disclosed. Said Solar Trap employs, firstly, the principle of the light funneling as means for concentrating the sun light and secondly, the principle of the repeated incidence as means for enhancing the absorption of the concentrated sun light. The principle of the light funneling is realized by means of one or more of light funnels comprising a pair of reflecting surfaces arranged in V or U shaped cross sections wherein the funnel angle is greater than six degrees and the funnel opening is wider than three inches.

Abstract: This invention relates to the counter-reciprocating double blade saws including a pair of the saw blades disposed in side by side relationship, one extremity of each of the two saw blades is connected to two counter-reciprocating holders driven by a power source, respectively, which arrangement is for the counter-reciprocating double blade saw of the saber saw type. The other extremities of the two saw blades connected to two reciprocating saw blade holders at their one extremities are connected to a pair of the idler counter-reciprocating saw blade holders supported by the common frame that also supports the drive counter-reciprocating saw blade holders in the construction of the counter-reciprocating double blade saw of the bow saw or butcher saw type. The counter-reciprocating double blade saw of the two-man type saw is constructed when said common frame is removed in the counter-reciprocating double blade saw of the bow or butcher saw type and a pair of handles are added to two opposite extremities.

Abstract: A plurality of metallic or plastic strips or flats or bars with a certain types of notches and holes disposed along the length of said strips or flats or bars in a regular interval, which are used together with a plurality of rods in assembling a variety of self-interlocking grilles, are disclosed.

Abstract: This invention relates to the device for imposing a linear movement to the valve stem of the free-disc butterfly valves or the free-ball-plug valves in one direction before imposing a rotating movement to open the valve and another linear movement to the valve stem in the other direction after imposing another rotating movement to close the valve.

Abstract: This invention relates to a device converting the kinetic energy belonging to the moving stream of the fluid such as the wind, river and gulf streams to the power capable of doing a useful work in the form of a rotational motion with torque. Said device comprises two or more blades revolving about the central axis, which blades are made to rotate about its own axis parallel to the central axis at an angular velocity equal to one half of that of the revolving motion of the blades about the central axis.

Abstract: This invention relates to a self-interlocking grille structure comprising a plurality of the bars curved to provide a required surface geometry, which bars including a series of notches and holes, and a plurality of rods wherein said plurality of bars are criss crossed to form a network of bars and said rods threaded through said holes in the bars criss cross each other forming a network of rods which network of rods is embedded into the network of the bars.

Abstract: This invention relates to a mixing vessel employed in the mixing and agitation of the slurry in the mineral and chemical processing. The mixing vessel of the present invention comprises a cylindrical vessel and one or more propellers rotatably disposed within said cylindrical vessel adjacent to the cylindrical wall wherein the axis of the rotation of said one or more propellers is substantially perpendicular to the central axis of said cylindrical vessel; whereby, the rotation of said one or more propellers generates the thrust substantially tangential to the cylindrical wall of said cylindrical vessel and, thus, creates a rotating motion of the slurry contained in said cylindrical vessel about the central axis of said cylindrical vessel for the mixing and agitation of the slurry. Said rotational mixing vessel provides an advantage in saving the energy consumption required by the mixing vessel as well as the power consumption by the aerating vessel.

Abstract: A curtain for the window or skylight, etc., comprising a plurality of coiling sheets connected to each other in series is disclosed. One end of first coiling sheet is spliced to an adjacent end of the second coiling sheet in such a way that the said first and the said second coiling sheets coil together about the common axis which is the line of splicing of said two coiling sheets. The other end of the first coiling sheet is similarly spliced to the adjacent end of the third coiling sheet. A fourth and a fifth coiling sheets can be spliced to said second and third coiling sheets in the same manner and so forth. In the "coiled up state" which is the retracted state of the coil curtain, the coil curtain is of the configuration of a series of rolls of the coiling sheets adjoining each other.

Abstract: The invention is an aerial gymnastic exerciser having a pair of handles depending from cords threaded through compound pulley systems located between upper and lower supports with a body harness depending from the lower support. Increase or decrease in resistance to operation of the exerciser by an operator suspended in the harness and pulling on the handles is achieved by a plurality of removable weights depending from one end of cords passing upward and over part of the pulley systems and back downward with the other ends secured to the handles. Other modifications for resistance can be by either removable weights secured to the lower support, or by removable clothespin type springs with respective ends of each removably secured to the upper and lower supports or by use of both the removable weights and springs. Resistance can also be adjusted by how much the pulley systems are compounded.

Abstract: This invention relates to a method for coupling or joining pipes and tubes wherein an elastic force stored in said elastic coupling perpetually exerts a force that maintains a leak-proof connection between two ends of the pipes or tubes. Said elastic coupling comprises a plurality of the segments of an elastic ring having a cross section of annulus with an opening on the inward side of said elastic ring and a clamping collar of annular geometry with a groove on the inward side of said clamping ring, in which groove said plurality of the elastic ring segments are disposed in a confined fashion. The rims of two matching flanges built on each end of two pipes or tubes to be connected are received by said plurality of the elastic ring segments through said openings of the elastic ring segments.

Abstract: This invention relates to a rotary valve with multiple manifold comprising a manifold core including a plurality of ports disposed around the cylindrical surface of said manifold core, each of which ports is connected to each of a plurality of the axial holes disposed within said manifold core, a planetary roller and a belt wrapped around said manifold core and said planetary roller, which combination is enclosed within a sealed enclosure with an inlet. The other ends of said plurality of the axial holes open to the outside of said enclosure provide the multiple outlets. As the angular position of said planetary roller relative to said manifold core is varied, each of said plurality of ports disposed around the cylindrical surface of said manifold core becomes open when it is located within the unwrapped angle of said belt around said manifold core and becomes closed when it is within the wrapped angle.