Abstract:
A three-protuberance open-end wrench includes a head section. The head section has a first jaw and a second jaw. Two first protuberances are front and rear, side by side, formed on a holding face of the first jaw. A second protuberance is formed on a holding face of the second jaw. A throat is formed between the holding faces of the first and second jaws for receiving a threaded member therein. The protuberances of the first and second jaws serve to hold the threaded member. The protuberances form a non-isosceles triangle.
Abstract:
A quick-release angle measuring device is disclosed. The quick-release angle measuring device is applied to a hand tool, and includes a body, an angle sensor, a controller, a monitor and a power supply. The body has a quick-release part arranged on the body and for being detachable connected to the hand tool. The angle sensor is arranged in the body for detecting an angle value of the hand tool. The controller is arranged in the body and is signally connected to the angle sensor for a user to set a factor on the angle value. The monitor is arranged on the body and is signally connected to the controller for displaying the angle value. The power supply is arranged in the body for supplying electric power to the controller, the angle sensor and the monitor.
Abstract:
An apparatus for measuring the slip resistance of a wrench includes a base, at least one first threaded fastener, and at least one second threaded fastener. Both the first threaded fastener and the second threaded fastener are threaded into the base, wherein the roundness of the first threaded fastener and the roundness of the second threaded fastener are different.
Abstract:
A tool box includes a body with drawers and the body is rotatably connected to a base. A brake unit is received in the base and includes a first board fixed to the base and a second board movably located on the first board by connection plates pivotably connected between the first and second boards. A brake disk is rotatably located on the first board and the shaft is securely connected to the brake disk so that the brake disk is co-rotated with the body. The second board is controlled to move and contact the brake disk on the first board by a clutch pedal. When the second board contacts the brake disk, the body together with the base is moved as one piece, and when the second board is disengaged from the brake disk, the body can be rotated independently relative to the base.
Abstract:
A handled tool with a firm structure comprises a driving portion having a driving end and a connecting end; the driving end being an operation end of the handled tool; an enlarged annular portion being below the driving end; a coarse section being between the annular portion and the connecting end; an extending unit being a rod; the extending unit having a first extending end and a second extending end; the first extending end being combined to the embedding groove of the driving portion; and a handle portion having a enclosing cover and a handle, in assembly, the first extending end of the extending unit being combined to the connecting end; the second extending end of the extending unit being received in the handle portion; the enclosing cover enclosing a portion of the extending unit protruded from the handle portion and a portion of the driving portion.
Abstract:
A high strength alloy comprises: silicon with a weight percentage of 0.1 wt %˜0.5 wt %; manganese with a weight percentage of 0.3 wt %˜1.2 wt %; carbon with a weight percentage of 2.0 wt %˜3.0 wt %; phosphorous and sulfur with weight percentages of 0.01 wt %˜0.05 wt %, respectively; chromium with a weight percentage of 5.0 wt %˜7.0 wt %; molybdenum with a weight percentage of 3.0 wt %˜4.0 wt %; tungsten with a weight percentage of 1.0˜2.0; niobium with a weight percentage of 0.5 wt %˜1.7 wt %; vanadium with a weight percentage of 5.8 wt %˜7.8 wt %; nitrogen with a weight percentage of 0.04 wt %˜0.12 wt %; iron; other elements and impurities with a weight percentage of below 2 wt %
Abstract:
A handle tool with a firm structure comprises a driving portion having a driving end and a connecting end; the driving end being an operation end of the handle tool; an enlarged annular portion being below the driving end; a coarse section being between the annular portion and the connecting end; an extending unit being a rod; the extending unit having a first extending end and a second extending end; the first extending end being combined to the embedding groove of the driving portion; and a handle portion having a enclosing cover and a handle, in assembly, the first extending end of the extending unit being combined to the connecting end; the second extending end of the extending unit being received in the handle portion; the enclosing cover enclosing a portion of the extending unit protruded from the handle portion and a portion of the driving portion.
Abstract:
A high strength alloy comprises: silicon with a weight percentage of 0.1 wt %˜0.5 wt %; manganese with a weight percentage of 0.3 wt %˜1.2 wt %; carbon with a weight percentage of 2.0 wt %˜3.0 wt %; phosphorous and sulfur with weight percentages of 0.01 wt %˜0.05 wt %, respectively; chromium with a weight percentage of 5.0 wt %˜7.0 wt %; molybdenum with a weight percentage of 3.0 wt %˜4.0 wt %; tungsten with a weight percentage of 1.0˜2.0; niobium with a weight percentage of 0.5 wt %˜1.7 wt %; vanadium with a weight percentage of 5.8 wt %˜7.8 wt %; nitrogen with a weight percentage of 0.04 wt %˜0.12 wt %; iron; other elements and impurities with a weight percentage of below 2 wt %
Abstract:
A receiving assembly with a function of displaying data about objects therein, comprises: a container having at least one receiving unit; at least one sensor unit being installed in the receiving unit for sensing data about objects in the receiving unit and transferring the data; a display unit for receiving data from the at least one sensor unit and displaying the data on a screen of the display unit; the display unit being installed at an exterior of the container; and an operating unit for adjusting display ways of the display unit; and by the display unit to display data from the sensor unit; the object in the receiving unit can be known. The operating unit serves to divide the screen of the display unit into one frame or a plurality of sub-frames.
Abstract:
A tension spanner comprises a holding portion having an axial receiving hole at one end thereof; an outer periphery of the holding portion being formed with a plurality of textures for being held steadily; an upper periphery of the holding portion having a plurality of numbers for indicating the position in alignment; and a handle having an inner rod and an outer tube; one end of the inner rod being installed with an axial rolling ball; the outer tube having a receiving space; the inner rod in the outer tube can swing slightly in the receiving space of the outer tube; an outer side of the outer tube being formed with a scale; and an inner sleeve, an outer sleeve, an elastic body and a supporting post are received in the receiving space of the outer tube.