Abstract: A ratchet wrench includes a wrench head having a pawl compartment formed between a notch and a chamber of the wrench head, a drive member mounted in the chamber of the wrench head and having a ratchet gear, a pawl slidably received in the pawl compartment of the wrench head for engaging with the ratchet gear and for controlling the driving direction of the drive member by the wrench head, a handle having a pivotal coupling member mounted in the notch of the wrench head, and an actuating member attached to the pivotal coupling member and engaged with the pawl for moving the pawl to either side of the pawl compartment of the wrench head in order to determine the driving direction of the drive member by the wrench head.

Abstract: A supporting arm has a mounting seat, a buffering device and a body. The mounting seat is mounted on a table or a wall and has a mounting jacket and a top board. The mounting jacket has a through hole and an abutting face. The top board is detachably connected to the mounting jacket and has a mounting end and a connecting end. The buffering device is connected to the mounting seat and has at least one buffering shaft and a connecting frame. The at least one buffering shaft is pivotally connected to the connecting end of the top board. The connecting frame is pivotally connected to the at least one buffering shaft and abuts the mounting jacket. The body is connected to the buffering device through the mounting seat and has a pivotal end, a pivotal rod and an extending end.

Abstract: A tube coupling device includes a coupling member having an upper peripheral casing formed by a peripheral flange and a peripheral wall, a number of openings formed in the peripheral flange and communicative with an environment of the peripheral casing, a water guide plate engaged into the peripheral fence and engaged with the peripheral wall and having one or more passages, a partition member engaged into the peripheral casing and having a bore for water to flow into the coupling member, and a receptacle engaged into the coupling member, a valve member biased by a spring biasing member to engage with the partition member and to form a check valve.

Abstract: A barbell or dumbbell or exercise device includes a handle having two end portions, a weight member attached to either of the end portions of the handle and having a ball guiding raceway for engaging with a rolling device which is movable along the ball guiding raceway of the weight member for generating a vibration to the weight member and the handle, the weight member includes a housing attached onto the weight member and engaged with the rolling device for retaining the rolling device in the weight member, for example, the housing includes a chamber for receiving the weight member and includes a peripheral flange extended radially and inwardly into the chamber and secured to the weight member.

Abstract: A dampened recoil rest for supporting a rifle for enabling a shooter to operate the rifle with adjustable attenuation of recoil felt by the shooter, eliminating damage to the rifle by progressively absorbing or attenuating recoil, with the sight remaining on the target thereby eliminating a need to reacquire the target, without having to add additional weight to absorb the recoil, and with comfortable transfer of the recoil from the rifle to the shooter's shoulder. The rest includes a stationary base assembly, a rotating base assembly, a recoil attenuating assembly, and a rifle support assembly. The stationary base assembly is for attaching to a bench top. The rotating base assembly is rotatably attached to the stationary base assembly. The recoil attenuating assembly is operatively connected to the rotating base assembly. The rifle support assembly is operatively connected to the recoil attenuating assembly and is for supporting the rifle.

Abstract: An adjustable torque wrench includes a driving shank pivotally coupled to a tubular lever and biased with a compression spring, an adjusting screw for adjusting a compression force of the compression spring, and a barrel attached to the adjusting screw and rotated in concert with the adjusting screw and having a graduation aligned with a window of the tubular lever for allowing the graduation of the barrel to be seen through the window of the tubular lever, a control ferrule is slidably engaged with the adjusting screw for rotating the adjusting screw to adjust the compression force of the compression spring, and a lock device attached to a handle for selectively anchoring the control ferrule to the handle.

Abstract: A medical worktable has a base, a lifting device and a platform device. The base has a lower casing and an upper casing detachably connected to the lower casing. The lifting device is adjustably mounted on the base and has a pressurized air cylinder, an inner tube and an outer tube. The pressurized air cylinder is mounted in the upper casing and is securely mounted on the lower casing. The inner tube is mounted around the pressurized air cylinder and abuts the cylinder shaft. The outer tube is mounted around the inner tube and is securely mounted on a mounting board of the pressurized air cylinder. The platform device is mounted on the lifting device, is opposite to the base and has a mounting seat and a platform. The mounting seat is securely connected to the inner tube. The platform is mounted on a top of the mounting seat.

Abstract: A power supply having a two-way DC to DC converter has an AC to DC converter and a two-way DC to DC converter. When an AC power is input to the AC to DC converter, the AC to DC converter transforms the AC power to a middle level DC power and the two-way DC to DC converter transforms the middle level DC power to a low level DC power. When the AC power is unavailable and the two-way DC to DC converter obtains an external DC power, the two-way DC to DC converter transforms the external DC power to the middle level DC power. Therefore, if the power supply obtains the external DC power, the power supply can still output the middle level DC power even the AC power is unavailable.

Abstract: An electric cable connecting device includes a base member having a terminal post for engaging with an electric cable, a housing having a chamber for receiving a torque limiting mechanism which includes a follower engaged in the housing and having an inner thread for engaging with the terminal post and having a number of ratchet teeth, and a release member engaged in the housing and having a number of ratchet teeth biased to engage with the ratchet teeth of the follower, the release member is limited to slide relative to the housing only, and the release member is released when a torque applied to the housing and onto the terminal post is greater than a predetermined torque value of the spring biasing member.

Abstract: A dust-disposal assembly for a machine tool comprises a dust-collection chamber settled in a cutting area of the machine tool and a dust-block board settled on the dust-collection chamber for covering an opening of the dust-collection chamber, wherein the dust-block board serves to retain cutting dust in the dust-collection chamber.

Abstract: An ultra-thin, electrically conductive slice for button use, which includes a non-metallic matrix and a metal mesh. The metal mesh is provided in the non-metallic matrix. A plurality of metal touch points are provided on the metal mesh and exposed out of a surface of the non-metallic matrix so as to enable the surface of the non-metallic matrix to form a dense, electrically conductive mesh. The non-metallic matrix is rubber or silica. The metal mesh is electrically conductive.

Abstract: A thin lock has a housing, a core assembly mounted in the housing, multiple pin assemblies arranged longitudinally in the core assembly, and a latch assembly mounted through the housing and selectively activates the core assembly and the pin assemblies. Thus, when the thin lock is mounted on a door panel, numbers of the pin assemblies does not relate to a thickness of the door panel. Therefore, the numbers of the pin assemblies are able to be added to increase the complexity and enhance the safety of the thin lock according to user's need.

Abstract: A multi-function cutter includes a body composed of a first half and a second half, wherein the first and second halves are formed with indentations, concave portions, guides parallel to the concave portions and rows of positioning pits arranged along the concave portions; a blade holder sliding along the guides to jut out of the indentation and having a spring socket; and an adjusting device deposited in the spring socket and exposing outside the concave portions. Therein, an adjusting spring is arranged between the adjusting device and the spring socket, and the adjusting device is bilaterally formed with wedge portions for detachably engaging the corresponding positioning pits, so as to stretch the blade holder in multiple stages.

Abstract: A radially adjustable horse grazing muzzle includes a muzzle body made of a flexible material and having an open end for allowing a horse snout to be placed in the muzzle body therethrough, and an adjustment assembly configured as a segment of a periphery of the open end of the muzzle body and having a pad and at least one adjustable fastener composed a first member and a second member, wherein the first member is fixed to the pad while the second member is fixed to an adjacent segment of the periphery of the open end of the muzzle body, the first and second members being configured to combine with an adjustable overall length thereof, whereby when the overall length of the combined first member and second member is reduced, the muzzle body is centripetally converged, thereby achieving a radial adjustment of the muzzle.

Abstract: A displacement sensing system is disclosed. Two image capturing devices are settled at to opposite ends of a coordinate axis of the planar area, respectively, for capturing images of the planar area and an object placed thereon. Four pre-established LUT databases and an interactive four-matrix lookup table process are implemented to determine actual coordinates of the object on in the planar area.