Abstract: A float-linkage device for wave-energy electricity generation includes a float coming with two moving braces attached to two sides thereof. The two moving braces are pivotally connected to corresponding ends of upper and lower links. The upper and lower links each have an opposite end thereof pivotally connected to a transmission link. The transmission link further has an opening for receiving a one-way bearing, thereby forming a float-link unit. A plurality of the float-link units are linked by each having a pivot hole at one end of the moving brace of the float engaged with a boom of a prop, and having a pivot hole of the one-way bearing engaged with a main boom of the prop. A gear is provided on the main boom of the prop and is engaged with a pinion provided on a power-generating device installed on the prop.

Abstract: A float-linkage device for wave-energy electricity generation includes a float coming with two moving braces attached to two sides thereof. The two moving braces are pivotally connected to corresponding ends of upper and lower links. The upper and lower links each have an opposite end thereof pivotally connected to a transmission link. The transmission link further has an opening for receiving a one-way bearing, thereby forming a float-link unit. A plurality of the float-link units are linked by each having a pivot hole at one end of the moving brace of the float engaged with a boom of a prop, and having a pivot hole of the one-way bearing engaged with a main boom of the prop. A gear is provided on the main boom of the prop and is engaged with a pinion provided on a power-generating device installed on the prop.

Abstract: An improved structure of a cutting edge of a diamond blade allows the cutting edge to be constantly sharp for cutting and have a long service life. The cutting edge is formed at an appropriate part of a particularly shaped metal shank or blank and is corrugated by stamping so as to form recesses on two sides of the cutting edge. The recesses of the cutting edge have inner bottoms whose depths are one-half or more than one-half a thickness of the metal shank or blank. The cutting edge can be further formed with plural openings. In addition, the two sides of the cutting edge have outer surfaces electroplated or coated with diamond particles, wherein a vertical distance between outermost portions of layers of the diamond particles formed respectively on the two sides of the cutting edge is greater than a thickness of the cutting edge.

Abstract: The present invention relates to a saw blade for diamond milling. More particularly, the surface of the cylinder metal or the shaped metal can be opened with multiple parallel spaces, or with cross mode. Also, the surface of the cylinder metal or the shaped metal can have the embedded groove with circular, vertical, or spiral shape for positioning diamond grains. As well, the metal surface is extruded by the formed jig, and the embedded groove is deformed and extrudes inwardly for embedding the diamond grains. Further, the surface can be electroplated with a metal electroplated layer, an electroplated layer with diamond grains, a metal layer by sintering, or a metal layer with diamond grains. The metal electroplated layer and the metal layer by sintering can increase the firmness for diamond grains. Moreover, the electroplated layer with diamond grains, or the metal layer with diamond grains can increase the life cycle and milling performance.

Abstract: The present invention relates to a diamond saw blade for milling. The rim of the circular metal with a shaft or the front end of the tubular body or an edge of the strip metal has multiple equidistant openings for positioning the diamond grains. The width of the opening is slightly wider or equal to the diameter of the diamond grain. After the diamond grains are positioned in each opening, the metal surface on both sides of each opening is pressed by the jig through two directions. The metal surface on both sides of the opening is deformed by the pressure from the jig, and extrudes along the direction of each opening for bonding diamond grains. Further, the surface forms a rugged cutting edge. More, a diamond layer with diamond grains is electroplated on the surface of the cutting edge. It, therefore, has a long lifecycle and becomes a high-speed cutting edge for milling without deformation.

Abstract: An enhanced and improved diamond circular saw blade of an invention is disclosed. The invention includes welding and jointing of the periphery of a circular steel blade having an axle bore and a plurality of arc-shaped copper alloy metal-sheets. Each arc-shaped copper alloy metal-sheet includes a plurality of openings, which provide the space required to accommodate a plurality of diamond particles. The width of an opening is somewhat wider than the diameter of an individual diamond particle. When the diamond particles are placed inside each opening of the copper alloy metal-sheets, a pair of molds is used to compress the top and the bottom of a plurality of metal teeth between adjacent openings simultaneously. By compressing this pair of molds, the metal teeth between adjacent openings are deformed, so as to squeeze along the direction of these openings and to enclose and hold the diamond particles. As a result, the surface is of an indentation-shaped saw plate.

Abstract: An enhanced and improved diamond circular saw blade of an invention is disclosed. The invention includes welding and jointing of the periphery of a circular steel blade having an axle bore and a plurality of arc-shaped copper alloy metal-sheets. Each arc-shaped copper alloy metal-sheet includes a plurality of openings, which provide the space required to accommodate a plurality of diamond particles. The width of an opening is somewhat wider than the diameter of an individual diamond particle. When the diamond particles are placed inside each opening of the copper alloy metal-sheets, a pair of molds is used to compress the top and the bottom of a plurality of metal teeth between adjacent openings simultaneously. By compressing this pair of molds, the metal teeth between adjacent openings are deformed, so as to squeeze along the direction of these openings and to enclose and hold the diamond particles. As a result, the surface is of an indentation-shaped saw plate.

Abstract: A scooter is constructed to include a front fork holding a front wheel, a base frame holding a pair of rear wheels, a coupling plate extended from the base frame and coupled to the front fork, and a toe-controlled steering control frame coupled to the coupling plate of the base frame and fastened to the front fork for controlling the steering direction of the front wheel with the toes.

Abstract: A scooter is constructed to include a front fork holding a front wheel, a base frame holding a pair of rear wheels, a coupling plate extended from the base frame and coupled to the front fork, a movable plate inserted through a transverse sliding slot in the rear vertical part of the angled front section of the flat base frame, a link coupled between the front fork and the rear end of the movable plate, and a steering control footplate rotatably supported on the flat base frame and pivoted with a front bottom rod thereof to the front end of the movable plate for enabling the rider to control the steering direction of the front wheel with the foot when riding the scooter.

Abstract: An material having a polyester fabric base layer, at least one metal layer coated on at least one of two opposite sides of the polyester fabric base layer by chemical plating, and at least one outer abrasive layer of diamond powder or cubic boron nitride bonded to the at least one metal layer by electroplating.

Abstract: A diamond grinding wheel includes a base frame stamped from a sheet of steel, a plastic grinding wheel body injection-molded on the base frame and filled up through holes of the base frame, keeping the base frame from sight, and a grinding face formed of layer of diamond power bonded to the periphery of the plastic grinding wheel body.

Abstract: An exhaust ventilator includes a frame in which are mounted a plurality of conductive wires mounted in parallel across two inner opposite sides of the frame, two fans arranged in the frame, and a power supply installed at one corner of the frame and capable of supplying high voltage and low current to the conductive wires for killing bugs and mosquitoes and provided with switches for controlling speed of the fans, whereby the exhaust ventilator can be used as an air ventilator as well as a device for driving away mosquitoes.

Abstract: A diamond wire saw includes a steel cable, a plurality of rotary diamond abrasive barrels respectively mounted around the steel cable, and pairs of compression springs respectively mounted around the steel cable and fastened to each of the rotary diamond abrasive barrels at tow opposite ends by packing rings, the rotary diamond abrasive barrels each having a spiral convex portion and a spiral concave portion arranged in parallel around the periphery, and a diamond abrasive layer of substantially equal thickness covered on the spiral convex portion and the spiral concave portion, the diamond abrasive layer having a plurality of diamond cutting grains fastened thereto for cutting things.