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The weasel's gear ratio is typically 40 to 1, and the circumference of the reel is usually two yards, thus producing an 80-yard skein when the weasel pops (after 40 revolutions). [1] [2] [3] Some reels or skein winders are made without the gear mechanism (see swift (textiles)). They perform the same function, but without the "clock" or pop to ...
A wrap reel or skein winder is a device for measuring yarn and making it into hanks of a standard size. The reel is of a standard size and its revolutions are counted as the yarn is wrapped around it. Typically, a set number of revolutions will be used so that the hank is of a standard size—skein or lea.
The time to skein yarn on a niddy-noddy depends on the yardage, and thus how many wraps need to be made. A larger niddy-noddy can speed up the skeining, but a very large one can be bulky, and thus slow down the time to do one wrap. At this point, the skein is secured by loose figure eight knots between each crossbar.
Winders are used heavily in textile manufacturing, especially in preparation to weaving where the yarn is wound onto a bobbin and then used in a shuttle. Ball winders, such as the Scottish Liaghra, are another type of winder that wind the yarn up from skein form into balls. Ball winders are commonly used by knitters and occasionally spinners.
Silk weaving is known to have been carried out in Sicily in the tenth century, and in 1474 there were 15,000 employed in the industry in Milan.There is an illustration of a circular hand-powered throwing machine drawn in 1487 with 32 spindles.
Side and end view of a 4-fluted countersink. The fluted countersink cutter is used to provide a heavy chamfer in the entrance to a drilled hole. This may be required to allow the correct seating for a countersunk-head screw or to provide the lead in for a second machining operation such as tapping.
A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...
Comparison of countersunk and counterbored holes. Counterbore cutter marked 'E A counterbore hole is usually used when the head of a fastener, such as a hex head or socket head capscrew, is required to be flush with or below the level of a workpiece's surface.