Abstract: A sander includes a base having a platform for supporting a work piece. A casing is rotatably secured to the base at a pivot shaft and has a plate for supporting a sander member. A lock device may secure the casing and the sander member to the base at any selected angular positions. The casing has two rotatable barrels for supporting the sander member. A motor is secured to the casing and secured to one of the barrels for driving the sander member via the barrels. The barrels may be adjusted relative to each other to tighten the sander member.

Abstract: A sander includes two sander wheels of different sanding devices are rotatable secured on top of a frame. A work table is slidably disposed in the frame for supporting work pieces and for moving the work pieces toward the sander wheels. A pair of rollers are rotatable supported beside the sander wheels for feeding the work pieces passing through the sander wheels. A motor is coupled to the sander wheels and the rollers for driving the sander wheels and the rollers simultaneously. A reduction gearing is coupled to the rollers to drive the rollers in a reduced speed.

Abstract: A sander device includes a motor, a sander member secured to a spindle of the motor, and one or more further sander members coupled to the motor and driven by the motor. A shaft is rotatable secured beside the motor and coupled to and driven by the motor for slidably supporting the further sander members. A follower is slidably engaged on the shaft for supporting the further sander members and is driven by the motor by cranks and links. The follower includes a guiding rod for preventing the follower from rotating relative to the shaft.

Abstract: A vacuum cleaner includes a base and a cover secured together and a bellows type housing secured between the base and the cover. The cover includes a cylindrical wall and a hose connector extended through the cylindrical wall for connecting a flexible hose to the housing. A motor is secured on the cover, and a fan device is to the motor for drawing the dust into the housing. The vacuum cleaner includes a simplified structure having decreased weight and volume and includes a structure that may be easily folded to a compact configuration.

Abstract: A table includes two channels and four pressers slidably engaged with the channels by bolts and secured to the table by the bolts. The pressers each includes an extension for engaging with the tool and for pressing the tool in place. Four bolts are threadedly engaged with the free ends of the pressers for spacing the free ends of the pressers from the table and for preventing the free ends of the pressers from being bent when the pressers are secured to the table. The pressers may be adjusted along the channels for securing tools of different sizes.

Abstract: The invention covers a novel series of .alpha.-mercaptoacrylic acid derivatives that inhibit both calpain I and calpain II with a high affinity and selectivity. The compounds are useful in the treatment of neurodegenerative disorders including cerebrovascular disorders, brain injury, spinal cord, and peripheral nerve injury, cardiac infarction, cataracts, inflammation, restenosis, muscular dystrophy, and platelet aggregation. Pharmaceutical compositions, methods of using processes for preparing and novel intermediates useful in the processes are also disclosed.

Abstract: A wood working machine includes a base secured on top of a stand and having a platform secured on the rear portion for supporting a cutter device. A pair of rails are secured in parallel on the front portion of the base. A table has a pair of tracks slidably engaged on the rails for smoothly moving the table along the rails. The base is pivotally coupled to the stand. A pair of arms have an upper portion pivotally coupled to the base and have an oblong hole for slidably engaging with two fasteners of the stand and for allowing the base to be rotated about the pivot shaft.

Abstract: The invention covers a novel series of .alpha.-substituted hydrazides that inhibit both calpain I and calpain II. They are non-peptide irreversible active site inhibitors of calpain. The compounds are useful in the treatment of neurodegenerative disorders including cerebrovascular disorders, brain injury, spinal cord, and peripheral nerve injury, cardiac infarction, cataracts, inflammation, restenosis, muscular dystrophy, and platelet aggregation. Pharmaceutical compositions, methods of using processes for preparing and novel intermediates useful in the processes are also disclosed.

Abstract: A sander includes a work table for supporting a work piece and having a frame secured on one end. A housing has one end slidably engaged in the frame and movable upward and downward toward the work table. A motor is secured to the housing and has a spindle extended inward of the housing. A sander member is secured to the spindle so as to be driven by the motor with a greater speed for grinding the work piece. One or more rollers are rotatably coupled to the spindle by a reduction gearing so as to move the work piece with the reduced speed.

Abstract: Disclosed is a table-top grinder power transmission mechanism for driving a grinding wheel to polish the surface of a workpiece, which includes a spindle driven by a motor to turn the grinding wheel, and a reciprocating mechanism to reciprocate the spindle during the operation of the motor. The reciprocating mechanism includes a worm wheel meshed with a worm on the output shaft of the motor, a bearing block coupled to the spindle by a bearing and connected to an eccentric location on the worm wheel by a link.

Abstract: A woodworking machine having first and second carriages controlled by a work handle to carry a cutting tool carrier in X-Y direction, which cutting tool carrier can be directly moved by the work handle in Z direction, a chucking slide and a workpiece retaining screw for holding a workpiece during horizontal operation mode, and a seat plate and an auxiliary chucking plate for holding a workpiece during vertical operation mode.

Abstract: A circular saw sharpener comprising a base mounted on a work table at the top, a bracket pivoted thereto at the top which bracket has a L-shaped frame pivoted thereto at the top for holding a motor and a grinding wheel, a guide arrangement mounted on said bracket at the bottom for guiding the circular saw blade to be sharpened, a feed mechanism mounted on said base and controlled by a hand lever to carry the circular saw blade to be sharpened toward said grinding wheel for grinding. The level position of the circular saw blade to be sharpened can be adjusted by an adjusting knob. The angular position of the sand wheel can be adjusted by a lock screw, to fit the inclination of the teeth on the circular saw blade to be sharpened.

Abstract: A table-top copying machine comprising a H-shaped sliding frame assembly mounted to slide forward and backward on the base frame thereof, a copying mechanism mounted to slide leftward and rightward on said H-shaped sliding frame assembly, a first positioning mechanism for holding block-shaped working piece and model, and a second positioning mechanism for holding flat-shaped working piece and model. By means of the control of the H-shaped sliding frame assembly and the copying mechanism itself, working piece and model can be moved forward, backward, leftward and rightward. By means of the control of the first positioning mechanism, working piece and model can be rotated vertically.

Abstract: The present invention is directed to a vertical/horizontal double-way grinding abrasive belt grinder which includes a base and a horizontal grinding wheel head. The base has a vertical grinding wheel and an assembly chamber arranged at its top. The vertical grinding wheel can be adjusted within an angle of 45.degree. with respect to the top of the base. The assembly chamber includes four positioning blocks respectively spaced about an opening at the top of the base for mounting thereon a cover plate or the horizontal grinding wheel head. The horizontal grinding wheel includes a housing and an abrasive belt wheel which are arranged to cooperate with the vertical grinding wheel for an abrasive belt to rotate thereabout.

Abstract: A hand-operated copying machine which can be efficiently operated to precisely perform copying process is including a frame assembly, a positioning adjusting mechanism and a vertical fixture assembly. The frame assembly includes a copying frame comprising copying tools and pilot rod efficiently controlled by means of a handle. The positioning adjusting mechanism which includes lock screw, scale knob, fixing element and locating element respectively mounted on the positioning holes of a front rod for flexible positioning control of working piece through the adjustment of the scale knob. The vertical fixture assembly includes three locating disc having mounted thereon fixed chuck element, movable chuck element arranged to match with screw bolt and jaw element served to firmily retain the working piece for performing copying process.