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One end is pierced for the string; the other is squared off to fit in a tuning lever socket. The middle section, which would pass through the wood, is tapered. A variety of methods are used to tune different stringed instruments. Most change the pitch produced when the string is played by adjusting the tension of the strings.
Once the bobbin is full, the hobby spinner either puts on a new bobbin, or forms a skein, or balls the yarn. A skein is a coil of yarn twisted into a loose knot. Yarn is skeined using a niddy noddy or other type of skein -winder. Yarn is rarely balled directly after spinning, it will be stored in skein form, and transferred to a ball only if ...
Bobbin lace requires the winding of yarn onto a temporary storage spindle made of wood (or, in earlier times, bone) often turned on a lathe. Many lace designs require dozens of bobbins at any one time. Both traditional and contemporary bobbins may be decorated with designs, inscriptions, or pewter or wire inlays.
Through tenon: a tenon that passes entirely through the piece of wood it is inserted into, being clearly visible on the rear side. Loose tenon: a tenon that is a separate part of the joint, as opposed to a fixed tenon that is an integral part of one of the pieces to be joined. Biscuit tenon: a thin oval piece of wood, shaped like a biscuit [17]
The bullet shuttle is long and slender, shaped like a bullet, with a pointed tip that is sometimes called the hook. The bobbin inserts from the rear, and the tip is pointed for the purpose of intercepting the small loop temporarily created (by a brief upward needle motion) in the upper thread—see pictures below of its operation.
Winders have a center roll (a bobbin, spool, reel, belt-winding shell, etc.) on which the material is wound up. Often there are metal bars that travel through the center of the roll and are shaped according to their intended purpose. A circular bar facilitates greater speed, while a square bar provides a greater potential for torque.
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.
A turnbuckle, stretching screw or bottlescrew is a device for adjusting the tension or length of ropes, cables, tie rods, and other tensioning systems. It normally consists of two threaded eye bolts , one screwed into each end of a small metal frame, one with a conventional right-hand thread and the other with a left-hand thread.