Abstract: A light-generating wheel for an in-line skate includes two side shells and an electric board sandwiched between the two side shells. The electric board has a plurality of light emitters protruding out of one of said two side shells to light on and off, i.e. to flash while the wheel is rotated in skating on the ground.

Abstract: A roller skating shoe with a light emitting device includes an elongate inverted U-shaped plate fixed under a skating shoe, a plurality of rollers combined rotatably with the elongate inverted U-shaped plate by means of two locating plates and bearings and rod shafts passing through the inverted U-shaped plate, the locating plates, and the rollers to be tightly screwed with anti-loose nuts. Coils are electrically connected with light emitters fixed on both sides of each roller. Magnets are fixed on the two locating plates producing magnetism to cross each coil to allow the coil to produce electricity to light up each emitter when the rollers are rotated by a skater.

Abstract: An automatic massager and washer includes a base housing having a frontal rounded portion and a rear handle portion. A water pressure turbine is mounted in an upper center cavity formed in the frontal portion. Upper recesses are spaced around a center hollow post in the upper center cavity. A hollow post is provided in each recess for mounting a massaging wheel covered with a brush. A large gear is fixed on the center hollow post which rotates with the turbine when water flows through turbine blades formed at an outer circumference of the turbine. The large gear engages and rotates small gears fixed on bottom ends of locating rods of the massaging wheels. An oozing cap covers the top of the center post for emitting bathing milk stored in a chamber formed under the upper center cavity of the base and is actuated by an air push button fixed in the rear portion of the base housing.

Abstract: A running machine is provided. The machine includes a base consisting of a flat upper plate and flat lower plate, a plurality of roller shafts provided laterally and spaced above the upper plate. An endless belt moves around the roller shafts by means of a motor. Four lifts are provided between the upper plate and the lower plate at the respective four corners thereof, to incline the upper plate. A computer for controlling the motor and the lifts is also provided. The computer controls the motor and lifts according to a program provided on a disk recorded with a program of various conditions of a rod. A visual-acoustic mask is connected to the computer, and includes a screen and a speaker to present images and sounds according to the program to a user wearing the mask while running on the belt for exercise.

Abstract: An automatic back brushing massager has three brushes fixed on three planet gears. The three plant gears are positioned between a sun gear and an epicyclic gear and engage the sun and epicyclic gear in order to rotate synchroneously. The epicyclic gear also has a worm gear on an outer circumferential edge to engage a worm driven by a motor via a pair of bevel gears. The three brushes are then doubly rotated by said motor for brushing and massaging a person's back at the same time. This brushing and massaging is aided by the elasticity of coil springs set between brushes and the planet gears.

Abstract: An auxiliary charging device for a mobile telephone includes a compartment in a lower portion of the mobile telephone for depositing an auxiliary charging device including a coil, a magnet, a revolving disc, an auxiliary gear, a main gear and an operating handle. The coil, the magnet and the auxiliary gear are secured by a vertical shaft. The main gear is secured pivotally by another vertical shaft. The operating handle is manually pushed inward to rotate the main gear, the auxiliary gear, the revolving disc and then the magnet to force the coil to produce electric current to be supplied to the mobile telephone when the battery thereof has been consumed.

Abstract: A solar house-number indicating device comprises a box-like body having a front opening and an inner space for receiving a solar-powered battery, a digital L.E.D. device with its control circuit for presetting a series of number corresponding to the house number, a door member pivotally attached to the box-like body for closing its front opening and having means for retaining and displaying a house-number plate and a road-name plate and a sensor unit for automatically turn off the L.E.D. device in bright time and turn on the L.E.D. device in dark time to produce a digital light sign of the house number.