. The miller, millwright and millfurnisher. I u m IV Fig. 223.—Wiebes Dress. The Evans Dress, Fig. 222, is a curved dress in which the leaders havegreater draft toward the skirt than at the eye—the short furrow beingparallel to these. In Wiebes Dress, Fig. 223, the leaders are curved andhave increasing draft ; but the short furrows are curved exactly like the. Fig. 224.—New Circle Dress. leaders, except that they are not prolonged in the eye. In the new circledress. Fig. 224, the draught diminishes toward the skirt instead of the above-named dressers are for upper-runners, and t
. The miller, millwright and millfurnisher. I u m IV Fig. 223.—Wiebes Dress. The Evans Dress, Fig. 222, is a curved dress in which the leaders havegreater draft toward the skirt than at the eye—the short furrow beingparallel to these. In Wiebes Dress, Fig. 223, the leaders are curved andhave increasing draft ; but the short furrows are curved exactly like the. Fig. 224.—New Circle Dress. leaders, except that they are not prolonged in the eye. In the new circledress. Fig. 224, the draught diminishes toward the skirt instead of the above-named dressers are for upper-runners, and then we have (4)dresses for under-runners. 330 VARIOUS MILLSTONE DRESSES. In any circular dress in which the radius of the furrow is equal to thedistance of the middle point of the furrow from the centre of the stone, thesine of half the angle of crossing of the furrows is equal to the radius vector,and the crossing angle increases toward the skirt. The angle of furrow crossing can be smaller with under than with upperrunners ; large crossing angle not being required at the eye, in order topermit the feed to enter easily and rapidly. The furrows of an under-runnershould make an angle at each point, with the path of the chop, greater thanthe friction angle of the material (which is about 37°), the sides of thefurrow being steep. If this is not observe
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectflourmi, bookyear1882
