Abstract: A transporting and positioning device for tool magazine of a bridge type machine tool comprises a pair of parallel guide-ways on a plate, a seat slidably mounted on the guide-ways for supporting the tool magazine, a drive mechanism including a cylinder, an extendable positioning shaft, a connection block adjacent the plate the connection block including a top hole and being fixed to the table, and a second cylinder having an extendable second positioning shaft; In an operating state of the machine tool, the second positioning shaft is actuated by the second cylinder to project an adjustable distance through the plate to urge against the seat for fastening the seat and the tool magazine. A tool change is performed after fastening the positioning shaft in the hole. The invention is also applicable to EDM.

Abstract: A rack comprises an article-holding piece and a support structure for supporting the article-holding piece on a wall surface. The support structure comprises a suction cup by which the support structure is fastened at the inner end onto the wall surface. The support structure further comprises a support rod, a rotary ring, and a fastening block. The support rod is provided with an axial through hole in which a threaded rod of the suction cup is received. The rotary ring is rotatably engaged with the outer end of the support rod to facilitate the locating of the article-holding piece on the support rod. The fastening block is rotatably engaged with the threaded rod of the suction cup for adjusting the suction force of the suction cup.

Abstract: A sectional rack that can be assembled without using any tool and type of fastener includes oblong-sectioned vertical posts having horizontal slots symmetrically provided on two opposite sides, and externally, gradually, downwardly expanding connecting members adapted to firmly attach to the vertical posts through engagement of ribs provided on inner wall surfaces of the connecting members with the horizontal slots on the vertical posts, and horizontal shelves having an internally gradually downward expanded short sleeve provided at each corner and being adapted to connect to the vertical posts by seating the short sleeves over the connecting members attached to the vertical posts. Further, channels are optionally hung on the vertical posts to support drawer-type baskets thereon.

Abstract: In an optical disc driver having a fixed opto-mechanic module and turntable, a disc loader includes a retractable tray for moving the optical disc into and out of the unit. The optical disc loader includes a base for mounting thereon a driving unit and a motor spinning disc; a movable tray actuated by the driving unit to linearly move into and out of the loader; a disc platform connected to the movable tray and moved therewith for loading, lifting, descending and retracting the optical disc; and a pressing unit connected to the disc platform, to be lifted and descended therewith, for pressing the optical disc to the motor spinning disc. Therefore, it saves space, simplifies the mechanism, decreases the number of components and simplifies the manufacturing process.

Abstract: A light-producing structure for a wheeled traveling case assembly includes a mini generator having a rotary shaft with a frictional wheel connected thereto to frictionally contact with an adjacent wheel of the assembly. When the wheel rotates, the frictional wheel and the rotary shaft are brought to rotate, enabling the mini generator to output currents, which are supplied to light-emitting elements provided on handle grip and traveling case of the assembly in order to give light. Each wheel of the assembly is internally provided with an induction coil and a plurality of small bulbs. A ring-shaped magnetic rotor is fixedly mounted on an axle of each wheel to locate in a central hole of the induction coil. When the wheel rotates, the induction coil rotates relative to the magnetic rotor to generate induced currents, which are supplied to the small bulbs in the wheel for the bulbs to give light.

Abstract: A watering device comprises a watering container, a cap, a control knob, and an air tube. The cap is fastened with the water container such that an air inlet of the cap and a channel of a tapered projection of the cap are in communication with the hollow interior of the water container. The tapered projection of the cap is provided with at least one water discharging hole in communication with the air inlet of the cap. The control knob is rotatably fastened with an outer end of the air inlet such that the control knob can be turned to block the air inlet. The air tube is fastened at one end with an inner end of the air inlet such that other end of the air tube is extended into the hollow interior of the water container.

Abstract: The invention pertains to a method for determining whether a rotor is good in magnetic induction by measuring the electromotive force (emf) of a motor. A standard stator of the motor is prepared as the standard of measurement. A set of induction coil is wound upon the standard stator so that when the rotor is combined with the standard stator and is subject to running by a driver, the induction coil can detect the back-emf signal generated by the rotor, by which the rotor quality can be determined. Since the measuring method disclosed in the invention is performed within the closed system composed of the rotor and the stator, the result is not only close to a real motor in rotation, the detection is simple and free from the problem of axis alignment. Thus, this method can increase the production efficiency of the product line.

Abstract: An inductive control valve using solar battery as a supplementary energy source mainly includes an amorphous silicon solar battery fixedly mounted on a casing of an inductive flushing valve or a main body of an inductive water faucet. Positive and negative lead-outs of the amorphous silicon solar battery are parallelly connected to positive and negative electrodes of a charging battery to form a parallel power supply. And, an output of the parallel power supply is further connected to a power input of a micro-power-consumption inductive controller. The solar battery not only provides driving power needed by the control valve, but also charges the charging battery.

Abstract: A safety helmet comprises an impact-resistant structure which is fastened to the inner surface of a shell of the safety helmet and is formed of an impermeable fabric, a plurality of foam bodies enclosed by the impermeable fabric, and an air valve fastened to the impermeable fabric such that the air valve is in communication with the foam bodies via a plurality of air ducts.

Abstract: A method for making broadband cholesteric liquid crystals with improved bandwidth. The method includes the main steps of: (a) preparing a polymerization mixture containing first and second chiral liquid crystals, wherein the first chiral liquid crystal possesses a cholesteric liquid crystal phase and the second chiral liquid crystal possesses a helix-inversion characteristic, and at least one of the first or second chiral liquid crystals contains a polymerizable functional group; and (b) subjecting the polymerization mixture to a polymerization reaction, wherein the polymerization reaction is conducted such that the first chiral liquid crystal will go through a helix-inversion phenomenon. In a preferred embodiment, the second chiral liquid crystal has a temperature-dependent helicity which exhibits a helix inversion characteristic at a helix inversion temperature.

Abstract: An arresting device is pivotally mounted between two handles of a pair of pliers. The arresting device comprises a sleeve and a rod fitted into the sleeve. The sleeve and the rod are pivotally fastened at one end with the two handles. The sleeve has a receiving cell, a retaining piece disposed in the receiving cell, and a spring disposed between the retaining piece and a side wall of the receiving cell. The retaining piece is urged by the spring to retain the rod. The receiving cell is provided with a pin pivoted thereto such that the pin is corresponding in location to the movable end of the retaining piece, and that the pin can push away the retaining piece from the rod. As the pin is turned such that a recess of the pin is corresponding in location to the retaining piece, the movable end of the retaining piece is in the free state, thereby enabling the retaining piece to be urged by the spring to retain the rod.