Abstract: A faucet of which the displacement of the valve cock is controlled through pressure equilibrium effect, which includes a draw-off tap assembly comprised of a casing, a valve cotter, a valve cock, a sealing plug, wherein said valve cock is mounted on said valve cotter, and said valve cotter is set in a cavity defined by said casing and said sealing plug with the rear end of said valve cotter been arranged to protrude beyond the water passage of said sealing plug. The draw-off tap assembly is fixed at the water outlet of the faucet to control water supply while a water temperature and flow rate regulating means is set at a front position of the faucet.

Abstract: The AC/DC changeover device automatically changes from AC to DC current by setting a TRIAC on or off, to supply DC from a battery in the absence of AC, for powering an air pump for an aquarium.

Abstract: A lead-replaceable writing implement including an outer tube, an inner rod received in the outer tube and formed with multiple lead channels and a push rod, a rotary tube partially inserted into a lower end of the outer tube, and a lead holder received in the rotary tube and partially protruded beyond the lower end thereof, wherein the multiple lead channels respectively contain several series of leads of different hardness, and the rotary tube is formed with a lead stop whereby when rotating the rotary tube to locate the lead stop right above a lead channel and then push the inner rod upward, the lead stop will stop a lowest lead with desired hardness from rising and drop the stopped lead into the lead holder, and when thereafter pressing the inner rod downward, the push rod thereof will partially protrude the dropped lead beyond the lead holder for writing.

Abstract: Th present invention is related to a modification made on a regular toy tumbler to let the toy tumbler be equipped with a sound generating IC controlled by a plate spring type microswitch. When the toy tumbler stands still, the microswitch is OFF, and no sound is generated. When the toy tumbler is rocking, the microswitch is ON, and the sound generating IC is triggered to provide audio signal through an electronic speaker. Matching with the innovative outer appearance, the toy tumbler is bestowed with a new life.

Abstract: A car fender with brake light device, including a fender sheet having a light seat, a circuit board having brake lights, and a light cover fitted to the light seat to encapsulate the circuit board for waterproof ability, by means of a set of wires and conducting plates disposed through the fender sheet, the brake lights being electrically connected with the brake circuit of a car whereby when the brake is applied, the brake lights will be lighted up to indicate the following drivers to slow down, eliminating unnecessary car accidents.

Abstract: A pencil box which can be converted into a desk lamp, including a box seat, a box cover and a pivot member connecting the box cover to the box seat, the box seat having two battery containers and the box cover having two lamp sockets connected to the battery containers via a set of wires which are disposed on the box seat and through the pivot member to form a circuit, a switch being further disposed on the box cover to control the circuit, whereby when batteries and lamps are installed respectively in the battery containers and lamp sockets, the lamps can be lighted up via the switch with the box cover pivoted upward to convert the pencil box into a desk lamp.

Abstract: A lock with hidden pins which is characterized by an outer sleeve, a pivot in the inner sleeve, a short tube, and an outer covering for the outer sleeve. The keyhole is positioned in the pivot, and the short tube and the pivot can be aligned. The head and the stem of the key can be disassembled.

Abstract: Four lift units are installed at the axle shaft of the car wheels and can be swung from the bottom plate by means of a hydraulic drive motor, to enable the car to move horizontally to the left or to the right into a parking space. Besides enabling the car to move horizontally for parking, the device can also be used for tire replacing or to perform a U-turn.

Abstract: This invention relates to a novel structure of a ball type "figure-guessing" game, and in particularly refers to the structure of game which is composed of several cases, a base and a top plate. All cases have identical outer appearances to the naked eye, making it difficult to distinguish their differences; each case differs from the other cases only in internal structure. By random arrangement of cases by the player, a solution number is generated. The player can input his guess by placing balls in a top plate; the balls take different paths in the cases, to ultimately provide hints that enable the player to revise his guess, until his guess matches the solution of riddle.

Abstract: L-shaped latches are guided by elbow-shaped recess formations in a base to prevent sabotage by a door picker or burglar. Through a transmission mechanism, the L-shaped latches are inserted into respective latch sockets furnished on the door jamb.