Search results
Results From The WOW.Com Content Network
Thread limit or pitch diameter limit is a standard used for classifying the tolerance of the thread pitch diameter ... In 1569, Besson invented the screw-cutting ...
A thread is a long strand of material, often composed of several filaments or fibres, used for joining, creating or decorating textiles.
Richard Arkwright employed John Kay to produce a new spinning machine that Kay had worked on with (or possibly stolen from) another inventor named Thomas Highs. [2] With the help of other local craftsmen, including Peter Atherton, the team developed the spinning frame, which produced a stronger thread than the spinning jenny invented by James Hargreaves. [3]
Cotton-spinning machinery is machines which process (or spin) prepared cotton roving into workable yarn or thread. [1] Such machinery can be dated back centuries. During the 18th and 19th centuries, as part of the Industrial Revolution cotton-spinning machinery was developed to bring mass production to the cotton industry.
ISO metric screw threads are designated by the letter M followed by the major diameter of the thread in millimetres (e.g. M8). If the thread does not use the normal coarse pitch (e.g. 1.25 mm in the case of M8), then the pitch in millimeters is also appended with a multiplication sign (e.g. "M8×1" if the screw thread has an outer diameter of 8 ...
The form of a Whitworth thread is based on a fundamental triangle with an angle of 55° at each peak and valley. The sides are at a flank angle of Θ = 27.5° perpendicular to the axis. Thus, if the thread pitch is p, the height of the fundamental triangle is H = p/(2tanΘ) = 0.96049106p.
Richard Arkwright, who patented the technology in 1769, [1] designed a model for the production of cotton thread, which was first used in 1765. [2] [3] The Arkwright water frame was able to spin 96 threads at a time, which was an easier and faster method than ever before. [4]
Sewing Fisherman's Wife by Anna Ancher, 1890. Sewing is the craft of fastening pieces of textiles together using a sewing needle and thread.Sewing is one of the oldest of the textile arts, arising in the Paleolithic era.