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Needle threader and usage with a needle. Typical needle threader. A needle threader is a device for helping to put thread through the eye of a needle.Many kinds exist, though a common type combines a short length of fine wire bent into a diamond shape, with one corner held by a piece of tinplate or plastic.
Sewing awls are used to make lock stitches. The needle, with the thread in the eye is pushed through the material. The thread is then pulled through the eye to extend it. As the needle is pushed through the material, the extra thread from the first stitch is then threaded through the loops of successive stitches creating a lock stitch.
Parts of a sewing machine needle and comparison of several types of needle points and parts. A sewing machine needle is a specialized needle for use in a sewing machine. A sewing machine needle consists of: [1] shank - clamped by the sewing machine's needle holder; shoulder - where the thick shank tapers down to the shaft
Whether manual or automatic, the processing of tapping begins with forming (usually by drilling) and slightly countersinking a hole to a diameter somewhat smaller than the tap's major diameter. The correct hole diameter is listed on a drill and tap size chart , a standard reference in many machine shops .
The Craft Yarn Council of America (CYCA), an industry trade association, has collated a table of crochet hook and knitting needle sizes from de facto industrial standards and elicited the cooperation of its member organizations in adopting them to regularize sizing in the United States. The listed gauge systems are also widely used internationally.
The Birdsell Clover Huller was invented by John Comly Birdsell in 1855 in West Henrietta, New York (near Rochester). His machine both removed the hulls from the clover ( threshing ), removed the seeds from the hulls ( hulling ), and cleaned the seeds so they can be used or sold for animal feed and/or soil nutrients.