Abstract: In a tilting gravity casting apparatus, a die includes a ladle that stores a molten metal and the molten metal is poured through a runner into a cavity of the die when the die is tilted. The apparatus includes a block member for blocking the runner, a pressing pin for pressing the molten metal in the cavity, a controller that controls operation of driving the block member and the pressing pin, and a first molten metal sensing sensor disposed in the runner. The controller is configured to start driving the block member and the pressing pin based on a detection signal outputted from the first molten metal sensing sensor.

Abstract: In a tilting gravity casting apparatus, a die includes a ladle that stores a molten metal and the molten metal is poured through a runner into a cavity of the die when the die is tilted. The apparatus includes a block member for blocking the runner, a pressing pin for pressing the molten metal in the cavity, a controller that controls operation of driving the block member and the pressing pin, and a first molten metal sensing sensor disposed in the runner. The controller is configured to start driving the block member and the pressing pin based on a detection signal outputted from the first molten metal sensing sensor.

Abstract: A tilting gravity casting apparatus, a die includes a ladle that stores a molten metal and the molten metal is poured through a pouring gate into a cavity of the die when the die is tilted. The cavity accommodates a cylindrical protrusion for forming a closed-end hole in a bearing support portion of a knuckle, and the cavity has a pressing boss portion located along an axial line of the cylindrical protrusion. Before a die tilt step of tilting the die is completed, a press step of pressing the molten metal in the pressing boss portion by using a pressing pin and a pouring gate block step of blocking the pouring gate with a block member are initiated.

Abstract: A flap is attached to a rear end of a blade so as to be angularly displaceable. Displacement magnifying means magnifies the amount of displacement from an actuator to drive the flap. An input portion to which the displacement is applied from the actuator is expandably and contractibly supported by bellows. Likewise, an output portion to which the input amount of displacement is magnified is expandably and contractibly supported by a bellows. Consequently, displacement magnifying means is realized in which, compared with a existing piston with O ring which slides on the cylinder inner wall, no deterioration in response characteristic due to high friction occurs when the actuator is displaced at high speed, and no fluid leakage due to deterioration or wear of the O ring occurs. According to this structure, a rotor blade flap driving apparatus is obtained which has displacement magnifying means with fast response and no fluid leakage.

Abstract: A drill press assembly having a base mountable to a work bench, a vertical column attached to the base and a drill head assembly having an electric motor and a quill. The drill head assembly is movably attached to the column. A rack is rotatably attached to the top of the column and is engaged by a crank and pinion mechanism attached to the frame of the drill head assembly which permits the drill head assembly to be displaced vertically and rotated about the column. A tilt table is attachable to the base of the drill press. A locking mechanism having a bolt passing through a longitudinal slot in the supporting base of the tilt table and a transverse slot in the base is engaged by an eccentrically mounted camshaft to lock the supporting base of the tilt table to the top surface of the drill press base. A pivoting frame is pivotably attached to the supporting base and contains a table plate. A fence is attachable to the top of the pivoting frame.

Abstract: A locking mechanism for a planning block comprises a locking part formed on the axle of a planing block, a locking plate which has a combined hole formed with a hole for locking the locking part to stop the rotation of the planing block and a hole for unlocking the locking part to allow the planing block to rotate, and a cover to move the locking plate in the direction to lock the planing block when opened and in the direction to unlock when closed, thereby enabling the planing block to be locked whenever the cover is opened.

Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.

Abstract: An automatic planning machine for cutting a surface of a workpiece which includes: a base portion on which the workpiece is to be laid; a feeding device for feeding the workpiece; a rotatable cutter block arranged on one side of the base portion with a rotary shaft substantially in a vertical direction; and a reference base disposed vertically on the other side of the base portion; wherein an upper side of a workpiece feeding path between the reference base and the cutter block is opened. A height of the reference base is lower than that of the cutter block and a top surface of the reference base is held horizontally. The automatic planning machine may comprise an auxiliary reference base which is detachably mountable on a top surface or a side wall of the reference base.

Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.

Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.

Abstract: A circular saw having a table on which a workpiece is laid in which a saw blade whose bevel angle can be adjusted is mounted on an operating arm which may be held in a raised position and a lowered position relative to the table. The circular saw includes a fixed support member fixed to the table, the fixed support member having a pair of recesses each of which has a slanted reception surface relative to a slide surface of the fixed support member; a movable support member mounted rotatably on the fixed support member for supporting the operating arm, the movable support member having a an arcuate guide hole, the movable support member having a pair of mount screw holes perpendicular to the reception surfaces; a stationary shaft which passes through the arcuate guide hole formed in the movable support member and which engages with the fixed support member; and a pair of adjusting screws which penetrate the mount screw holes and which are alternatively held in abutment with the reception surfaces.

Abstract: An automatic planing machine has two feed rollers on one side of the machine and a stool for holding two pressure rollers which are pressed toward the feed rollers with a pressure force smaller than a pressure force of the feed rollers. The machine has a compact driving mechanism for rotating the feed rollers and further has a feed mechanism for move the stool and a casing for holding the feed rollers toward and away from each together with back-lash preventing means.

Abstract: An automatic planning machine has a vertical stationary stool functioning to cut a workpiece flatly and a vertical movable stool opposed to the stationary stool. The stationary stool has a plurality of feed rollers while the movable stool has a plurality of pressure rollers. A pressure force by the pressure rollers can be selectively changed over thereby to push the workpiece on the stationary stool at the time of flat work and to push the workpiece on the movable stool at the time of thickness determination work.

Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.

Abstract: A joint machine having a fence and a fence position adjusting mechanism. The mechanism adjusts a vertical position and angular orientation of the fence with respect to a pair of fence supporting members upstandingly extending from a base which accommodates therein a cutter. a hand gripper is provided between upper end portions of the fence supporting members. The mechanism includes a pair of fence fixing means. One of the fence fixing means fixes both the vertical position and angular orientation of the fence, whereas the other fixing means fixes the vertical position of the fence.

Abstract: An A/D converter apparatus comprises: a sampling signal generating means to generate an oversampling signal and an internal sampling signal; a converter means to convert an input analog signal into a digital signal in synchronism with the oversampling signal; and a decimator means to perform a specified decimation on the digital signal in synchronism with the internal sampling signal; whereby the sampling signal generating means maintains the frequencies of the oversampling signal and the internal sampling signal in a specified relationship.