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A pipe vise is used by a plumber to hold pipes for threading and cutting. There are two main styles, yoke and chain. [6] The yoke uses a top-mounted screw to clamp the pipe between two fixed angled jaws at its base; the chain style secures the pipe by wrapping it within a chain designed to adjust to length by link, tightened by a cam lever.
In manufacturing, threading is the process of creating a screw thread.More screw threads are produced each year than any other machine element. [1] There are many methods of generating threads, including subtractive methods (many kinds of thread cutting and grinding, as detailed below); deformative or transformative methods (rolling and forming; molding and casting); additive methods (such as ...
Threaded clevis pins have a partially threaded shank on one end and a formed head on the other. The formed head has a lip, which acts as a stop when threading the pin into the shackle, and a flattened tab with a cross-hole. The flattened tab allows for easy installation of the pin and the cross-hole allows the pin to be moused. [3]
In oil field tubing, buttress thread is a pipe thread form designed to provide a tight hydraulic seal. The thread form is similar to that of Acme thread [10] but there are two distinct threaded portions of differing diameters and profiles, the larger having a wedging profile, with a tapered sealing portion in between the larger and smaller diameters.
A similar example is a vise. There are various types of hand tools and similar instruments for assistance or temporary support for work, crafts and even for other tools, such as: Clamp; Retort stand; Band clamp; Tie down strap; Cable tie; Rubber band; Clothespin; Tourniquet; Neodymium magnet; Vise; Pipe clamp; Utility clamp; Locking pliers
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