Abstract: A 8 mm video tape rewinder including an upper casing and a lower casing, containing a motor, a slide plate, a tape deck, a push button, a transparent cap, a DC seat, a circuit board, a microswitch, a pair of push arms, a rewinding shaft, a driven shaft and multiple springs, whereby when rewinding the tape, the push button is pushed inward to push the slide plate inward so that a pushing rib thereof touches the microswitch and pushes the push arms rearward, and the push rod of the push arm stretches the tape outside the tape casing for rewinding the tape and when the push arms reach the end, a projection of one of the push arms pushes and engages with a rear projecting post of the slide plate so as not to be pulled back by a spring, and when the rewinding operation is completed, the tensioned tape will exert pushing force on the push rod to push away the engaged projection and projecting post, permitting the slide plate to be pulled back by the spring and the transparent cap can be opened for taking out the ta

Abstract: A lead battery assembly including a lead battery, a voltage-detecting circuit used to detect the voltage of the lead battery and an automatic voltage-charging circuit, these circuits being connected to the lead battery and contained together with the lead battery in a housing, a connecting base being electrically engaged with the above circuits wherein the connecting base is adapted to engage with a charger for a nickel-cadmium battery whereby when the detecting circuit detects that the voltage of the lead battery reaches a certain value, it will send a signal to the voltage-changing circuit to slowly lower the voltage thereof and after the total voltage of the lead battery and the voltage-changing circuit change from an increasing state to a decreasing state, the charger will sense the decreasing voltage and stop charging the lead battery so that the lead battery is permitted to be charged by a charger for a nickel-cadmium battery.

Abstract: An auxiliary illuminating device of a camera including a main body having a front and a rear faces, an engaging base disposed on the front face, a first battery seat disposed on the rear face, an illuminating light, a support rod connecting the illuminating light to the main boy, and an inner circuit, characterized in that the illuminating light has a light tail including two pivotally openable portions which can be opened to expose a second battery seat contained in the light tail so as to install an additional battery therein, whereby through the coordination of the inner circuit, a single battery or two identical or two different batteries with different capacitances can be used to simultaneously supply power.

Abstract: The invention is directed to a tape cassette winder/rewinder adapted to wind on rewinder a conventional VHS tape cassette or a compact VHS-C type cassette. This is achieved by providing a space to receive the conventional VHS tape cassette and a recess below this space to house retractable confining arms that extend to hold a VHS-C tape cassette. The recess also houses a retractable idle gear assembly which extends to drive the take up reel of the VHS-C cassette when it is being held by the confining arms.