Abstract:
An improvement in a drawer lock of a cabinet includes a cylinder, a trigger bar, a fixing block, a sliding block, a latch hook, a first elastic member and a latch mechanism. The latch mechanism has a clutch pivotally engaged with a latch bar. A second elastic member keeps the clutch to be engaged with the latch bar at a preset angle. The latch hook of a closing drawer can wedge the latch bar to turn an angle smoothly while the clutch and the sliding block remain stationary, so as to prevent causing any damage to the latch hook even when the cabinet is in a locked position.
Abstract:
A drawer structure adapted to a single rail assembly or a multi-rail assembly in a cabinet; a drawer rail stop furnished beneath the drawer rail can be stopped with a stop lug on the single rail assembly or the multi-rail assembly. A roller on the rear end of a drawer rail may be mounted in place for the single rail assembly, or omitted for the multi-rail assembly; in other words, the drawer is compatible with a single rail assembly and a multi-rail assembly.
Abstract:
Many circuit boards include conventional sockets for receiving optional ICs. Such sockets are soldered to the circuit board during the manufacturing process. However, many of such sockets are wasted because they are never used. Such waste can be eliminated by using a clip-on IC retaining apparatus. It includes a housing, a retaining clip, and four registration holes arranged at the comers of a trace pad on a circuit board. The housing includes a shallow, open cavity on a bottom side for receiving a SMD. Four registration fingers projecting from the bottom of the housing mate with the registration holes on the circuit board to align the pins of the SMD with the trace pad. Ribs on the walls of the cavity slide between the pins to separate and straighten any bent pins. The retaining clip includes four downwardly bent flat springs connected in a rectangular pattern. Four slots in the housing extend vertically between the top thereof and the bottom of the fingers. Hooks projecting from the comers of the clip are positioned through the slots. The tips of the hooks extend out the bottom of the fingers and engage the bottom rims of the registration holes. The clip-on IC retaining apparatus and the IC can be easily installed as necessary by a user anytime after the circuit board is manufactured.
Abstract:
A resonant thermoelectric generator includes a thermoelectric power converter connected in series with a resonant circuit. A current generated by the thermoelectric power converter is cycled back and forth in the resonant circuit. The polarity of the thermoelectric power converter with respect to the resonant circuit is switched back and forth to correspond with the direction of the current. In a second embodiment, the thermoelectric power converter is coupled to the resonant circuit through a transformer, and its polarity is also switched to correspond with the direction of the current. In both embodiments, a negative retarding voltage that builds up in the thermoelectric power converter is eliminated by switching its polarity to always correspond with the direction of the current, so that energy is added to the resonant circuit in each cycle, and power is very efficiently converted from heat directly into electricity.
Abstract:
A self-adjusting level for determining the leveling between two distant points is disclosed. It mainly contains a main body and a light beam indicator. The main body contains a flame having two oppositely disposed supporting arms, a disc-like base disposed below said main body, and a 360-degree rotatable graduated angle-measuring disc disposed between said base and said frame. The light beam indicator includes: (a) an outer ring rotatably connected to and between said two supporting arms of said frame of said main body via two outer ring shafts so that said outer ring is allowed to freely rotate about said outer ring shafts, (b) an inner shaft being rotatably connected at both ends thereof to said outer ring and extending along a diameter of said outer ring so as to rotate in a direction normal to a rotating direction of said outer ring, (c) at least one light beam generator disposed inside said inner shaft for generating at least one light beam which emits from at least one end of said inner shaft, and (d) a plummet hanging from a central recess formed on said inner shaft. The plummet is provided with a battery means in an internal portion thereof to supply power to said light beam generator without affecting a motion of either of said inner shaft or said outer ring.
Abstract:
Torque is generated by the rotating front road wheel of a motorcycle for balance. When the vehicle is traveling too slowly, too little torque is generated for adequate balance, and when the vehicle is traveling too quickly, too much torque is generated for safe maneuvering. A torque compensator for a motorcycle thus includes a sensor for detecting the angular momentum of the road wheel. The detected angular momentum is compared to a predetermined optimal angular momentum by a comparator. An electric flywheel attached to the steering fork of the motorcycle is driven at a variable speed to generate a compensating angular momentum equal to the difference between the angular momentum of the road wheel and the optimal angular momentum. When the angular momentum of the road wheel is below the optimum, the flywheel is driven in the same direction as the road wheel to provide supplemental momentum, so that the sum of their momentums is equal to the optimal angular momentum. When the angular momentum of the road wheel exceeds the optimum, the flywheel is driven in the opposite direction as the road wheel to provide a counteracting momentum, so that the sum of their momentums is still equal to the optimal angular momentum. Thus the combined torque of the road wheel and flywheel is always optimized for the best stability and steering response throughout the entire speed range of the vehicle.