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adapter spools (also called crossover spools), used on oilfields and pressure control, have different diameters, pressure ratings or designs at each end [11] adapters to convert NPT to BSP pipe threads are available [12] a fitting that connects threaded and non-threaded pipe [13] [14]
In the textile industry, a hank is a coiled or wrapped unit of yarn or twine, as opposed to other materials like thread or rope, as well as other forms such as ball, cone, bobbin (cylinder-like structure) spool, etc. This is often the best form for use with hand looms, compared to the cone form needed for power looms. Hanks come in varying ...
A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is an inclined plane wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread.
Several machine collets (top and centre) and a dismantled pin chuck (below). Generally, a collet chuck, [3] considered as a unit, consists of a tapered receiving sleeve (sometimes integral with the machine spindle), the collet proper (usually made of spring steel) which is inserted into the receiving sleeve, and (often) a cap that screws over the collet, clamping it via another taper.
The most common is a tool design with a die and a cone, which is screwed through the handle until the edges are separated at the required angle. [11] [12] [13] A relatively new compact design is the reamer, used as an attachment to a drill. In this case, by friction, the pipe material is heated and gradually flattened to the shape of the nozzle ...
Today's NYT Connections puzzle for Saturday, October 26, 2024. The New York Times
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 ...
A bobbin or spool is a spindle or cylinder, with or without flanges, on which yarn, thread, wire, tape or film is wound. [1] Bobbins are typically found in industrial textile machinery , [ 2 ] as well as in sewing machines , fishing reels , tape measures , film rolls , cassette tapes , within electronic and electrical equipment, and for various ...
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