. History of the cotton manufacture in Great Britain : with a notice of its early history in the East, and in all the quarters of the globe : a description of the great mechanical inventions, which have caused its unexampled extension in Britain, and a view of the present state of the manufacture and the condition of the classes engaged in its several departments. es rapidly roundthe bobbin, and winds the roving on it as fast as it isdelivered by the rollers. The motions of the rollers andspindles are equal and uniform at all times : hence thetwist is equally diffused over all parts of the rov
. History of the cotton manufacture in Great Britain : with a notice of its early history in the East, and in all the quarters of the globe : a description of the great mechanical inventions, which have caused its unexampled extension in Britain, and a view of the present state of the manufacture and the condition of the classes engaged in its several departments. es rapidly roundthe bobbin, and winds the roving on it as fast as it isdelivered by the rollers. The motions of the rollers andspindles are equal and uniform at all times : hence thetwist is equally diffused over all parts of the to adapt the taking up of the roving to the uniformdelivery of the rollers, the speed of the bobbin must bevariable and unequal; for, while it increases in dia-meter, the velocity of its acting circumference willremain the same. The ratio of its accelerating motion,therefore, must be equal to the ratio of its increasingdiameter; that is, supposing the bobbin to follow thefly; but sometimes the fly follows the bobbin, in whichcase the speed of the bobbin must decrease in the sameratio as above. An important improvement in the process of pre-paration for cotton spinning is the tube frame latelyintroduced. It is employed as a finishing frame forcoarse numbers; but when used as a slabbing or rovingframe, it may be applied to the preparation of yarns of. THE COTTON MANUFACTURE. 211 any number whatever. The construction of thismachine differs from that of the roving frame, in having,instead of cans, revolving horizontal cylinders parallelwith the beam rollers, placed about twelve inches infront of the beam. Its chief advantage lies in the greatquantity of roving it can produce in a given time, itssuperiority of production to the fly frame being aseighty-four to seventeen; but the rove it produces isinferior in quality, and, having no twist, is extremelysoft and tender, and causes a greater quantity of wastethan the roves prepared by the fly frame.* A person named Green, a tin
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Keywords: ., bookau, bookcentury1800, bookidcottonmanufact00bain, bookyear1835
