Abstract: A dual disc type of tool turret device is powered by means of single main power source, which also serves to power the spindle of the machine; the turret device includes an inner and outer tool turrets; when power is transmitted from the main power source through a transmission element, a piston clutching piece, and rotary shaft (A), the inner turret will be rotated to carry out a tool-choosing operation; when power is further passed on to rotary shaft (B) through rotary shaft (A), the inner turret will be rotated to carry out a tool-choosing operation; after the tool-choosing action, power is supplied to the spindle of the machine in order for the machine to carry out a machining operation.

Abstract: A lathe includes a stock, a shaft, a power source, gripping bars, and a platform; the stock has a shaft seat secured therein, which has a hollow holding portion, and an inner protrusion; the shaft is passed in the shaft seat in a movable manner, and has a head having a step-shaped portion and projecting into the holding space; the power source is used for actuating the shaft; the gripping bars are spaced around the shaft head, and each have inner and outer recesses; the platform has a hollow portion, and an inner protrusion right above and facing the inner protrusion of the shaft seat; when the shaft is moved upwards, the step-shaped portion will be pressed against upper edges of the inner recesses to raise the gripping bars; thus, both the protrusions are tightly held within the outer recesses of the gripping bars, and the working platform secured in position.

Abstract: A transmission apparatus includes a frame, a rotating disk fitted on the frame, platforms on the rotating disk, an inner rotating member fitted on the frame, a clutch, and an actuating mechanism for moving the clutch; the platforms have clamping jaws for clamping a work piece; the clutch is joined to the inner rotating member, and can be engaged with and disengaged from a transmission gear rotated with a power source; after one of the platforms is secured to the inner rotating member, the actuating mechanism will exert force to separate the clutch from the transmission gear, and the clamping jaws clamp the work piece, and next the clutch is engaged with the transmission gear; thus, the power source causes rotation of the transmission gear, the clutch, the inner rotating member, and said working platform so as to test whether the work piece is positioned in balanced position.

Abstract: A lathe includes a stock, a shaft, a power source, gripping bars, and a platform; the stock has a shaft seat secured therein, which has a hollow holding portion, and an inner protrusion; the shaft is passed in the shaft seat in a movable manner, and has a head having a step-shaped portion and projecting into the holding space; the power source is used for actuating the shaft; the gripping bars are spaced around the shaft head, and each have inner and outer recesses; the platform has a hollow portion, and an inner protrusion right above and facing the inner protrusion of the shaft seat; when the shaft is moved upwards, the step-shaped portion will be pressed against upper edges of the inner recesses to raise the gripping bars; thus, both the protrusions are tightly held within the outer recesses of the gripping bars, and the working platform secured in position.

Abstract: An electric chuck includes a base, a fixed disk fixed under the base, a moving disk between the base and the fixed disk, and clamping jaws; a rotating shaft with outer threads is arranged under the fixed disk; the moving disk has a middle hole, through which the rotating shaft is threadedly passed; the clamping jaws is connected to the fixed disk and the moving disk in a movable manner; an electric motor is provided whose power is transmitted to rotate the rotating shaft; the clamping jaws will be moved to an inwardly pivoted position to hold a work piece positioned on the fixed disk when the rotating shaft is rotated to move the moving disk to its lower position; the clamping jaws will be moved to an outwardly pivoted position to release the work piece when the shaft is rotated to move the moving disk to it upper position.

Abstract: An apparatus and method are provided for power management in a computer operating system. The method includes providing a plurality of policies which are eligible to be selected for a component, automatically selecting one of the eligible policies to manage the component, and activating the selected policy to manage the component while the system is running without rebooting the system.

Abstract: A turret includes a central shaft, a piston sleeve positioned around the central shaft and having moving sticks thereon, a push rod, an actuating seat, and internal and external turrets; the piston sleeve is left and right movable by a power source; the moving sticks are passed through a ringed sleeve, which props a push rod passed through a fixed clutch claw, and facing the actuating seat; the actuating seat includes a rotary shaft, a pivotal shaft, and a toothed ring seat; the piston sleeve can be moved such that the moving sticks and the push rod move forwards, and the rotary shaft engages the toothed ring seat for a tool of a straight tool seat to function; alternatively the piston sleeve can be moved such that the moving sticks and the push rod move backwards, and the rotary shaft disengages the toothed ring seat for allowing replacement of the toothed ring seat.

Abstract: A spindle of a machining center is equipped with a clutch, which is fitted to a main spindle housing, and directly connected to a power source for separable engagement with a shaft coupling sleeve, and which is guided by sloping guiding trenches of a clutch disk such that a pull rod of the spindle is actuated for a tool shank housing to be changed between a clamped position and a released one; thus, power of the power source can be usually provided to the spindle to effect rotation of the spindle for machining a work piece, and the clutch can be operated for allowing the pull rod to be directly actuated with power of the power source without hydraulic mechanisms.

Abstract: A turret includes a central shaft, a piston sleeve positioned around the central shaft and having moving sticks thereon, a push rod, an actuating seat, and internal and external turrets; the piston sleeve is left and right movable by a power source; the moving sticks are passed through a ringed sleeve, which props a push rod passed through a fixed clutch claw, and facing the actuating seat; the actuating seat includes a rotary shaft, a pivotal shaft, and a toothed ring seat; the piston sleeve can be moved such that the moving sticks and the push rod move forwards, and the rotary shaft engages the toothed ring seat for a tool of a straight tool seat to function; alternatively the piston sleeve can be moved such that the moving sticks and the push rod move backwards, and the rotary shaft disengages the toothed ring seat for allowing replacement of the toothed ring seat.

Abstract: A turret of a lathe has a power transmission that is used for moving a tool Disk secured on a shaft to a secured position where the disk is engaged with a clutch. The transmission includes a piston, and a force multiplier unit, which includes a ring, a sleeve secured to the piston, and steel beads. The ring has first sloping trenches. The sleeve has sloping trenches that are less steep and opposing the first trenches, and has recesses connected to the trenches. The steel beads are held in respective ones of the spaces defined by the sloping trenches and the recesses, and are positioned next to a gear secured on the shaft such that when the piston is actuated for moving the tool disk towards the secured position, the steel beads will push the gear with multiplied force output while being rolled along the sloping trenches.

Abstract: A tool turret mechanism includes internal and external tool turrets, a toothed ring secured to the internal tool turret, a central shaft secured to the external turret, a power switch, and a clutch; the central shaft has a piston fitted thereto; the power switch is used for providing power to the internal and the external turrets through the toothed ring and the shaft respectively; the clutch includes a fixed clutch claw, external and internal ring clutch claws, which are respectively securely connected to inner edge of the internal turret, and inner edge of the external turret; the ring clutch claws will rotate, and engage each other; when the piston is actuated, and displaced, the external turret will be forced to change position, and both the turrets will be left and right displaced between a first position, in which they engage the clutch, and a second position, in which they disengage the clutch.

Abstract: A turret of a lathe has a power transmission used for moving a tool disk, which is secured on a shaft, to a secured position where the disk is engaged with a clutch; the transmission includes a piston, and a force multiplier unit, which includes a ring, a sleeve secured to the piston, and steel beads; the ring has first sloping trenches; the sleeve has sloping trenches opposing, and less steep than the first trenches, and has recesses connected to the trenches thereof; the beads are held in respective ones of spaces defined by the sloping trenches, and the recesses, and are positioned next to a gear secured on the shaft such that when the piston is actuated for moving the tool disk towards the secured position, the steel beads will push the gear with multiplied force output while being rolled along the sloping trenches, thus making the tool disk effectively secured.

Abstract: A spindle of a machining center is equipped with a clutch, which is fitted to a main spindle housing, and directly connected to a power source for separable engagement with a shaft coupling sleeve, and which is guided by sloping guiding trenches of a clutch disk such that a pull rod of the spindle is actuated for a tool shank housing to be changed between a clamped position and a released one; thus, power of the power source can be usually provided to the spindle to effect rotation of the spindle for machining a work piece, and the clutch can be operated for allowing the pull rod to be directly actuated with power of the power source without hydraulic mechanisms.

Abstract: A tool turret mechanism includes internal and external tool turrets, a toothed ring secured to the internal tool turret, a central shaft secured to the external turret, a power switch, and a clutch; the central shaft has a piston fitted thereto; the power switch is used for providing power to the internal and the external turrets through the toothed ring and the shaft respectively; the clutch includes a fixed clutch claw, external and internal ring clutch claws, which are respectively securely connected to inner edge of the internal turret, and inner edge of the external turret; the ring clutch claws will rotate, and engage each other; when the piston is actuated, and displaced, the external turret will be forced to change position, and both the turrets will be left and right displaced between a first position, in which they engage the clutch, and a second position, in which they disengage the clutch.

Abstract: The present invention relates to a power-driven bed comprising a base, a sliding frame, a power-driven motor, a first, a second, a third, and a fourth bedplate frames, and a first, a second, and a third link bars. The lateral side of the top of such base has a sliding frame, and a power driven motor is mounted on the base; the piston rod of the power-driven motor can be coupled to the sliding frame. The first, the second, the third, and the fourth bedplate frames are aligned horizontally in order, such that these four bedplate frames are coupled at their corresponsive mutual intersections, and the first, the third, and the fourth bedplate frames and both lateral sides of the vase are separately coupled to the first, the second, and the third link bars. A lateral side of the top of the sliding frame is coupled to a lateral side of the second bedplate frame.