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Stovepipe (organisation), where the structure of the organization restricts flow of information through rigid lines of control Stovepipe system or stovepiping, the informal name given to a category of criticisms applied to assemblages of technology
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.
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.
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.
Aplysina archeri, also known as a stove-pipe sponge because of its shape, is a species of tube sponge that has long tube-like structures of cylindrical shape. Although they can grow in a single tube, they often grow in large groups of up to 22 tubes. [ 2 ]
A vibrating shuttle is a bobbin driver design used in home lockstitch sewing machines during the second half of the 19th century and the first half of the 20th century. It supplanted earlier transverse shuttle designs, but was itself supplanted by rotating shuttle designs.
A spring pin (also called tension pin or roll pin) is a mechanical fastener that secures the position of two or more parts of a machine relative to each other. Spring pins have a body diameter which is larger than the diameter of the hole they are intended for, and a chamfer on either one or both ends to facilitate starting the pin into the hole.
In most angiosperms reaction wood is called tension wood. Tension wood forms on the side of the part of the plant that is under tension, pulling it towards the affecting force (upwards, in the case of a branch). It has a higher proportion of cellulose than normal wood. Tension wood may have as high as 60% cellulose. [3] In gymnosperms and ...