单词 | plough grinding |
释义 | > as lemmasplough grinding plough grinding n. Spinning (now historical) a method of grinding and sharpening the wires of a cotton card (see quot. 1892). ΘΚΠ society > occupation and work > industry > manufacturing processes > [noun] > processing > grinding grinding1340 rough grinding1748 plough grinding1892 plunge grinding1935 1892 J. Nasmith Students' Cotton Spinning iv. 135 The usual solution of the difficulty is found in the formation of a tooth with a chisel or knife edge, which is presented to the action of the cotton. This is usually obtained by what is called ‘plough grinding’—that is, a method of passing between the teeth of the clothing a thin emery disc, which ‘ploughs’ deeply between them and grinds them on each side until they present a sharp edge to the cotton. 1965 W. G. Byerley et al. Man. Cotton Spinning III. vi. 108 In addition to surface- and side-grinding, reference must be made to ‘plough-grinding’. This process was devised and patented by an English firm in 1880... The process..was superseded by the side-grinding process. < as lemmas |
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