Abstract: A ratchet wrench may include a main body and a quick release member. The main body has a driving end, and a tool hole vertically penetrates therethrough. A housing concavely formed on an inner wall of the tool hole, and a teeth section is installed in the housing. A ratchet wheel is installed into the tool hole, and an outer periphery of the ratchet wheel is adapted to engage with the teeth section so as to enable the ratchet wheel and the tool hole to have synchronous rotation. A driving hole axially penetrates through the ratchet wheel. The quick release member has a magnetic ring, a pressing member, and a cover. The pressing member is adapted to move relative to the driving hole and the magnetic ring, such that a sleeve can be easily coupled in or detected from the driving hole so as to achieve the quick release effect.

Abstract: A wrench has a head with an inside cylindrical wall surrounding a body with ramps. Cylindrical rollers located between the ramps and the cylindrical wall of the head are moved into wedging positions relative to the ramps and the inside cylindrical wall with permanent magnets located in a cage assembly anchored on the body.

Abstract: A method for cleaning a jet engine includes introducing a cleaning medium having solid materials into the engine by way of at least one discharging device, wherein the cleaning medium exits from the discharging device at an exit speed of 80 m/s or less.

Abstract: A torque structure includes a first body provided with a receiving recess, a second body pivotally connected with the first body, a first elastic member received in the second body, a retaining unit including a mounting seat provided with a first threaded portion and a plurality of first through holes, a first adjusting member provided with a head, a positioning seat provided with a plurality of second through holes, and a locking unit including a plurality of first locking members, a second locking member, a plurality of third locking members, a fourth locking member, a fastening member, and a second adjusting member. The fastening member is provided with a fitting portion connected with the first body. The fastening member is provided with a third threaded portion. The second adjusting member is provided with a fourth threaded portion screwed into the third threaded portion.

Abstract: A sanding tool includes a backing layer an adhesive layer and an abrasive layer. The adhesive layer is provided at the backing layer for bonding the abrasive layer at the backing layer via flocking techniques.

Abstract: A cleaning device is removably attachable to a replacement head. The replacement head includes pad that is attached to the lower side of an attachment member and is in contact with the floor during cleaning. The cleaning device is removably attached to the attachment member of the replacement head by lowering the cleaning device body downward vertically onto the replacement head until a mechanical connection is achieved.

Abstract: A wrench has a roller motion transmission mechanism that changes reciprocating motion of a driving member to unidirectional rotational motion of a driven member. The wrench has a head with a cylindrical inside wall surrounding a body with a plurality of ramps inclined toward the cylindrical inside wall. A wedging member comprising a cylindrical roller engages each ramp and the cylindrical inside wall of the head. A cage anchored to the body retains the wedging members in contiguous locations relative to the ramps and the cylindrical inside wall of the head. Retainers connected to the cage bias all of the wedging members into engagement with the ramps and the cylindrical inside wall of the head.

Abstract: Implementations of motorcycle base valve presses may include: a press including a base coupled to a first end of a body, a head coupled to a second end of the body, a handle coupled to a side of the head, and a press ram coupled through the head. The motorcycle base valve press may also include an end cap coupled with a first end of the press ram; and a motorcycle fork receiver coupled to the base of the press, the motorcycle fork receiver configured to receive a damper assembly of a motorcycle fork. The end cap may be configured to contact the base valve through the press ram and allow the base valve to turn.

Abstract: A mobile project center system is presented that includes a center track having a pair of center supports and a pair of legs connected to the center support. A pair of benchtops are connected to the center track and move between an extended position and a retracted position. A pair of braces connect to each benchtop and provide support between the benchtop and the legs. These braces are locked and unlocked using a brace lock controlled by a brace control positioned just below the benchtops. A shelf extends between the opposing pairs of legs that transitions from a folded position and an extended position. The benchtop includes a plurality of openings in a grid pattern that facilitate attachment of various devices such as a joinery block. The system is used to perform a number of operations and converts between a plurality of configurations.

Abstract: An adjustment mechanism for a lifting device includes a longitudinal clamp bar and a clamp slidably disposed on the clamp bar. The clamp has a clamp body and at least one clamping member movably connected to the clamp body. The at least one clamping member is operative for (1) acquiring a clamped condition when a lifting force is applied to the clamp body, wherein in the clamped condition, the at least one clamping member is engaged with the longitudinal clamp bar to prevent movement of the clamp along the clamp bar and (2) acquiring an unclamped condition when a lifting force is released from the clamp body, wherein in the unclamped condition, the clamp is free to move along the clamp bar.

Abstract: A workpiece placement platform device including: an X-axis direction positioning member provided on one side of a placement platform on which to place a plate-shaped workpiece and configured to position one side edge of the workpiece in an X-axis direction by contacting the one side edge; a Y-axis direction positioning member provided on another side of the placement platform and configured to position another side edge of the workpiece in a Y-axis direction by contacting the another side edge; and a workpiece positioning member that is movable in and out relative to a workpiece placement surface of the placement platform and configured to partition the workpiece placement surface into sections in the X-axis direction and enable simultaneous positioning at the sections on the workpiece placement surface.

Abstract: A lever device for lifting an object off the ground includes a lever member having a distal end that is positionable immediately adjacent a bottom end of the object. The lever device also includes a grip member that is operable with the lever member to lift the object off the ground. The grip member is adjustable relative to the lever member to accommodate a size of the object being lifted off the ground. The grip member includes a toothed or hooked end that grips an upper surface of the object to be lifted off the ground. The lever device further includes a handle that is graspable by a user to impart a lever force to the grip member and the lever member and thereby lift the object off the ground.

Abstract: A tool for installing a blind fastener including a core bolt and a core nut is provided. The tool includes a driving member, a collet driven by the driving member for engaging the core bolt, and an external sleeve for holding the core nut and preventing the core nut from rotating during installation of the blind fastener. The external sleeve is movable between a first position in which the external sleeve is driven by the collet to rotate with the collet and a second position in which the external sleeve is stationary despite rotating action of the collet.

Abstract: The invention relates to a device (100) for machining a surface of a workpiece (200a). According to one embodiment, the device (100) comprises a frame (160) and a roller carrier (401), on which a first roller (101) is rotatably supported and which is supported on the frame (160) in such a way that the roller carrier can be moved in a first direction (x). The device (100) comprises at least a second roller (103), which is supported on the frame (160), and a belt (102), which is guided at least around the two rollers (101, 103) and because of the tension of which a resulting belt force (102) acts on the roller carrier (401). The device (100) also comprises an actuator (302), which is mechanically coupled to the frame (160) and the roller carrier (401) in such a way that an adjustable actuator force (FA) acts between the frame (160) and the first roller (101) in the first direction (x).

Abstract: A tool for removing, from a set concrete wall, a concrete form of a type having a discontinuous structure is provided. The tool comprises a lever arm, comprising an engagement portion and a grasping portion. The engagement portion is positioned near one end of the lever arm, and the grasping portion is positioned near an opposite end of the lever arm. An engagement member is secured to the engagement portion. The engagement member is configured to engage the discontinuous structure. A pivoting member is mounted on the lever arm proximate the engagement portion. The pivoting member defines a pivot point around which the lever arm may rotate, whereby the engagement member will apply force to the discontinuous structure tending to pull the concrete form away from the set concrete wall when the engagement portion of the lever arm is pulled away from the set concrete wall when the engagement member is in engagement with the discontinuous structure.

Abstract: A torque transmission driver has a first end portion adapted to receive and transmit torque from a torque generation source, and a second end portion including a shaped tapered bit having drive surfaces with an alternating series of five or six lobes and troughs about a rotational axis, having a taper angle between 15 and 65° from the rotational axis operable to engage corresponding drive surfaces in a plurality of at least two size fasteners, the tapered drive surfaces of the bit comprising a first tapered portion operable to engage drive surfaces of a first sized fastener and a second tapered portion operable to engage drive surfaces of a second sized fastener, the drive surfaces of the second sized fastener being larger than the drive surfaces of the first sized fastener. The taper angle may be nominally 52° from the rotational axis.

Abstract: A grinding apparatus includes: a holding table for holding a workpiece thereon; a grinding unit including a grinding wheel for grinding the workpiece held on the holding table, the grinding wheel including a grinding stone made of abrasive grains and grains of photocatalyst bonded by a vitrified bonding material; a grinding water supply unit configured to supply grinding water to the grinding stone when the workpiece held on the holding table is ground by the grinding unit; and a light applying unit disposed adjacent to the holding table and configured to apply light to a grinding surface of the grinding stone while the workpiece held on the holding table being ground.

Abstract: A comestible cutting/chopping board which enables a user to align and cut or chop comestibles, preferably seed-to-egg sized, the board including side walls defining a longitudinal trough of V-shape or U-shape or half-pipe shape, the side walls preferably providing uneven surfaces, and the cutting/chopping board including structure traversing the side walls, most preferably end structures, providing a slot for penetration of a longitudinally oriented knife and providing for retaining at least some comestibles in the trough, the cutting/chopping board having a base for stabilizing the trough upon a horizontal surface.

Abstract: A watercraft fin removal tool for facilitating the removal of a detachable fin coupled to a watercraft body. The tool comprises an elongate body having a fin engagement head at one end and a handle at an opposing end. In use, the head is configured to engage the fin such that a sufficient leverage force may be applied to the fin by the user at the head via the handle to detach the fin from the watercraft body. In the preferred embodiment, the tool is designed for the removal of detachable surfboard fins. But, it may also be configured to remove fins from other watercrafts, such as wakeboards, paddleboards and the like.

Abstract: A multitool that can be carried on a person, including a body shaped to function as a series of tools, the body including a storage receptacle extending into the body from an opening at one end, the storage receptacle capable of receiving and retaining within the storage receptacle one or more hex drivers when not in use, the opening defining a socket formation for receiving and retaining a mounting end of a hex driver such that the hex driver protrudes from the body for use as a screwdriver.