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Overhead view of one arrangement of front and end vise positions on a workbench. There are two main locations for a vise (vice in UK English sp.) or vises on a workbench: on the front, a workbench's long face, known as a "front" ("face", or "shoulder") vise, and on the end, known as a "tail" vise.
In his stall, the tailor began to crack nuts. He offered the bear not nuts but pebbles, and the bear could not crack them. The tailor took one away, substituted a nut, and cracked it. The tailor began to fiddle, and the bear danced. The tailor offered to teach it, but first he had to cut its nails. He trapped it in a vise and left it there.
Self-centering three-jaw chuck and key with one jaw removed and inverted showing the teeth that engage in the scroll plate. The scroll plate is rotated within the chuck body by the key, the scroll engages the teeth on the underside of the jaws which moves the three jaws in unison, to tighten or release the workpiece.
- With its 28° thread angle this has higher friction than the square thread, but is easier to manufacture and can be used with a split nut to adjust for wear. [5] It is widely used in vises, C-clamps, valves, scissor jacks and lead screws in machines like lathes. (g) Buttress thread
A historic version of the Vise-Grip brand locking pliers. Locking pliers (also called Vise-Grips, Mole wrench or Mole grips) are pliers that can be locked into position, using an "over-center" cam action. Locking pliers are available with many different jaw styles, such as needle-nose pliers, wrenches, clamps and various shapes to fix metal ...
A bench vise, B machine vise, C hand vise. A vise or vice (British English) is a mechanical apparatus used to secure an object to allow work to be performed on it.Vises have two parallel jaws, one fixed and the other movable, threaded in and out by a screw and lever.
While modern nuts and bolts are routinely made of metal, this was not the case in earlier ages, when woodworking tools were employed to fashion very large wooden bolts and nuts for use in winches, windmills, watermills, and flour mills of the Middle Ages; the ease of cutting and replacing wooden parts was balanced by the need to resist large amounts of torque, and bear up against ever heavier ...
A split nut can also be used to compensate for wear by compressing the parts of the nut. A hydrostatic leadscrew overcomes many of the disadvantages of a normal leadscrew, having high positional accuracy, very low friction, and very low wear, but requires continuous supply of high-pressure fluid and high-precision manufacture, leading to ...