Abstract: A portable lighting device including a housing, at least one and preferably a plurality of sockets affixed to the bottom of the housing, and spiral-type fluorescent lights secured in the sockets. The housing includes a bottom and four sides, wherein the bottom and the four sides cooperate to define a housing interior. The spiral-type fluorescent lights are arranged so as to create a virtual single source of light creating one shadow.

Abstract: A bicycle wheel includes a rim having three or four spokes. A hub with a bearing is disposed at the center of said wheel. An annular recess is formed on an outer peripheral surface of rim for receiving a tire. A compartment is formed within each spoke for containing foam material and an annular chamber is formed within the rim of the wheel.The steps of manufacturing the bicycle wheel comprising:preparing a mold having a compartment configured according to the bicycle wheel, the mold including an upper mold and a lower mold;laminating composite material prepreg;applying foam material and solvent material respectively within spoke part and rim part of the composite material prepreg;disposing the composite material prepreg into the compartment of the mold;covering and inserting said mold into a heating appliance and heating;removing and cooling the mold;releasing the wheel and drilling a hole to the rim of the wheel for releasing the gas within the rim.

Abstract: A multispeed winch or gear box wherein an axially-movable gear located on a shaft parallel to the drive shaft is movable by operation of a lift mechanism to be in a first position in engagement with a specific gear train or in a second position out of engagement with the said gear train. Further, the winch or gear box can have a gear on the drive shaft with a lip or shoulder which can retain the axially-movable gear in the upper or first position after the lift mechanism has moved the axially movable gear to the first position, and the lift mechanism has been withdrawn. This arrangement will permit the gear box or winch to automatically shift from first speed to second speed to third speed upon reversal of the drive shaft rotation.

Abstract: A toy kit convertible to form a scooter, a rocking horse, or a tricycle. The scooter is generally a toy vehicle with a pair of extendable rear wheel assemblies. One or more sets of female retainers are provided on the rear end of the scooter. The rocking horse has a pair of parallel and foldable bases with one holf fixed by several lateral bars and a seat portion supported on the central position of the rocking horse. One or more sets of male retainers are provided on the lateral bars of the base of the rocking horse. The rocking horse can be disposed on and engaged with the scooter by the connection between the female retainers of the scooter and the male retainers of the rocking horse so as to form a tricycle.

Abstract: An automatic fishfood dispenser includes a food container, a dispensing mechanism, and a battery pack. A transparent plastic food container is provided with a removable cover and is integrally formed with a channel through which an outflow of fishfood is communicated to an egress provided in said dispensing mechanism. A grooved spindle positioned in the channel when stationary blocks a flow of fishfood from the channel, but when rotating distributes a quantity of fishfood to the egress. A battery powered motor operating in conjunction with a timer controls the rotation of the grooved spindle. A quantity of fishfood to be dispensed and a time interval preset by the user by means of the timer allows for the automatic dispensing of a quantity of fishfood at predetermined time intervals.

Abstract: An investment casting wax injection machine includes a heater for heating wax. A cylinder with a piston is disposed in the container which is disposed beside the working table. A discharge pipe connects the heater and the container for supplying the melted wax from the heater to the container. A disc is fixed at a bottom end of the cylinder. A number of check valves are provided on the piston and the disc. A distributor with a nozzle is disposed on the cylinder, and a check valve is provided between the distributor and the cylinder. A number of cooling manifolds are distributed in the distributor for cooling the wax.

Abstract: An improved decorative bulbholder includes a seat, a base and a connector for connecting with a bulb which is characterized in that a plurality of slices or a projecting surface and spaced convex portions are provided on the inside wall of the seat and several gaps are formed on the circumambience of the opened end of the seat for fixedly engaging with the relative convex ring, concaves and the body of the bulb. The lower end of the seat is elongated and provided with convex-concave flanges outside and a sleeve having an opposite configuration is provided around the lower end and has two longitudinal holes for receiving electrical wires. A connector provided with two opposed gaps, two sideward waved convex portions and two L-shaped holes is engageable with the channel of the base which has relative concave insides for sealing and thus becoming waterproof.

Abstract: A flow controllable spray nozzle comprising a barrel with a pair of symmetrical, helically-inclined slots on the outside surface and a partition plate with a hole formed therethrough disposed inside the barrel, an internally-threaded control ring with an inside diameter greater than the inside diameter of a housing integrated thereunder, depending therefrom, and a plunger secured inside the housing with a threaded nozzle cup screwed on the control ring to define a space therebetween complemental in size and shape to the upper portion of the barrel so as to receive the barrel therein. Each of a pair of symmetrical, threaded holes formed through the housing receives, in order, a cup, a coil spring and a screw with a post projecting therefrom. The cup, being pushed by the reaction force of the spring, is received by and firmly contacts with one of the slots to guide the plunger moving along the slot. A cone is disposed under the plunger.

Abstract: A spring-loaded seat assembly includes an upper seat and a lower seat connected by a plurality of spring members. A recess is formed on a respective outer surface of the upper and the lower seats. A number of hooks are provided on a respective inner surface of each seat for engaging both ends of the spring members so that the seats are resiliently connected together. A damping mechanism is provided between the upper and the lower seats so as to reduce the elasticity coefficient of the spring members. Therefore, the users may feel more comfortable.

Abstract: A tire pump with a pressure gage including a cylinder having a piston rod and a piston head slidably provided in the cylinder. A peep hole is formed in the cylinder. An outlet is formed at a front end of the cylinder. A pressure measuring device with a pressure indicating element is disposed at a front end of the cylinder so that the pressure indicating element is readable through the peep hole. The pressure measuring device interconnects the outlet of the cylinder. A bypass tube with a check valve is disposed beside the pressure measuring device so that air pressurized by the piston head flows out from the outlet through the bypass tube. The pressurized air also flows through air holes in order that the pressure within the pumped tire can be read from the pressure indicating element of the pressure measuring device through the peep hole.

Abstract: A portable safety device for outdoor use comprising: a first shell and a second shell; two grooves respectively disposed in the first and second shells; a switch disposed on the first shell and exposed to the outer environment of the first shell; first and second conductive plates disposed on the first shell and electrically communicated with each other by the switch; a cylindrically lighting means disposed between the first and second sheels and one end thereof protruded from the combination of the first and second shells; fixing means disposed on the other end of the combination of the first and second shells for connecting the lighting means, and the first and second shells together; a telescope movably disposed upon the lighting means and having an open position and a closed position wherein at one end thereof is an object lens and at the other end is an eye lens; a slidably elongated means provided on the object lens of the telescope for slidably moving the telescope from the closed position to the open

Abstract: A combined alarm and display belted clinical thermometer being wound on an arm of a user which comprises a thermal sensor to sense the temperature of the user. The sensing signals are converted and the measured value is displayed on an LCD display. The belted clinical thermometer also comprises a comparator which is preset witha reference value to comparing the measured temperature with a reference temperature and; if the measured temperature is significantly larger than the reference temperature, an alarm is triggered to sound. Further to the basic design, the belted clinical thermometer can be equipped with a transmitter which can signal a remote receiver to sound an alarm.

Abstract: A combination clip-board and case which is adapted to protect the paper when not in use, including a clip-board on which a clip is located integral with a pivoting member having a pin at each end thereof, and a case having a sliding groove and a hollow portion on each side of the case so that the pins are rotatable in the hollow portions. The clip-board is optionally settable to working or storage state due to the pins being rotatable in the hollow portions.

Abstract: A digital clock for giving acoustic time-indicating signals having an oscillator, a time integrated circuit driven by the oscillator, a first display element connected to the time integrated circuit to show hour and minute and, a second display element connected to the time integrated circuit to show a day among a week. A minute and a hour decoders are connected to the first display element to convert signals into a form of binary code. A memory unit receives the signals from the minute and hour decoders. A setting circuit has a number of flip-flops and control switches to be connected to inputs of the memory unit to pre-set a moment for giving acoustic time-indicating signals. An acoustic generator and a driving interface are connected to respective outputs of the memory unit and are driven by the memory unit to output the time-indicating signals.

Abstract: A valve for checking tire pressure comprising a hollow cylinder, a sealing block, a plate, a spring and a flute. The hollow cylinder has a flange inwardly extending at intermediate portion thereof to form an opening and divide the hollow cylinder into upper and lower portions. The sealing block is disposed in the lower portion of the hollow cylinder and contacts with the flange to seal the opening. The sealing block is provided with a passage communicating both sides of the sealing block. The plate has a pin downwardly extending into the opening and contacting the sealing block and a seat formed on upper surface of the plate. The spring is disposed on the seat of the plate. The flute mounted on the hollow cylinder includes a base and a flute body disposed on the base. A passage is formed in the base which communicates the flute body with the upper portion of the cylinder.

Abstract: A reversible wrench including a handle portion and a head portion. The head portion has a post compartment with evenly spaced receptacles around it. The post compartment receives a post plate with engagement posts on it. A driving head piece fits at the lower end of the head portion. The driving head includes an integral driving head, slip plate and cylindrical block. The cylindrical block extends upward through the post compartment and is received at the other end by a tab (cover) and is threadably secured with the tab. An arm with a protuberance on it urges the post plate and hence the engagement posts so as to bias the direction which the wrench can be turned.

Abstract: A valve including a primary tube, a secondary tube, a piston-like element, a pin, and a rotatable control ferrule. Two reduced diameter portions are formed on one end of the primary tube, in which the outer portion with a threaded outer surface has a smaller diameter, and the intermediate portion has a larger diameter. Two slots are formed on the opposite sides of the intermediate portion. The secondary tube has a threaded bore for making a threaded connection with the outer portion of the primary tube. The piston-like element is composed of a head and a rod with a transverse hole near its free end. The pin is slidably located in the hole of the rod. A control ferrule is rotatably disposed between the primary and the secondary tubes on the outer periphery surface. Two guide slots are formed in the annular inner surface of the control ferrule for receiving and guiding both ends of the pin in order to control the vertical movement of the piston-like element.

Abstract: A numerical lock includes a housing having a hooking member, a cover, a plurality of numerical wheels, a plurality of sleeves, a control rod having a head, a numerical-changing piece having a pushing member, and a pivotally mounted locking piece capable of engaging with the head to slide the control rod in the lock.