The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . •ArrLIED MKCIIANICS.] M E (J II A N I C S 761. (34). Ill orJor that the belt may fit accurately In every possible positionon a pair of. speed-cones, the quantity L must bo constaot, inequations 32, A, or 32, IJ,nocorJin^ as tlia belt iacrossed or For a crossed belt, oS inA and C, tig. 23, L dependssolely on c and on r^ + r^.Now c is constant becausuthe axes are para
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . •ArrLIED MKCIIANICS.] M E (J II A N I C S 761. (34). Ill orJor that the belt may fit accurately In every possible positionon a pair of. speed-cones, the quantity L must bo constaot, inequations 32, A, or 32, IJ,nocorJin^ as tlia belt iacrossed or For a crossed belt, oS inA and C, tig. 23, L dependssolely on c and on r^ + r^.Now c is constant becausuthe axes are parallel; there-fore tlio sum, of the radii ofthe pitchCircles connectedin every position of the beltis to be constant. Thutcondition is fulfilled by apair of continuous conesgenerated by tlio revolu-tion of two straight linesinclined opposite ways totheir respectiveaxesatequalan-les. Fig. 23. For an uncrossed belt, the quantity L in equation 32, H is to bemade constant. The exact fulfilment of this condition requires tliosolution of a transcendental equation ; but it may be fulfilled withaccuracy sufficient for practical purposes by using, instead of 32, B,^the following approximate equation :— L nearly = 2c+T(ri + r^)+ >- -^^ . . (33). The following is
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Keywords: ., bookauthorbaynesth, bookcentury1800, bookdecade1890, bookyear1892
