Handbook for machine designers, shop men and draftsmen (1916)
Halsey, Frederick A. (Frederick Arthur), 1856-1935 · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 336
describean arc of a certain radius. 318 HANDBOOK FOR MACHINE DESIGNERS AND DRAFTSMEN The relations between the desired radius R, Fig. 45, the distancea between the disk edges and the diameters d and di of the disksare given by the equation: d-d 10 10 p // 7. 7 / y -^ ^ ^ 0 / 7 / //. 7 ^ ^ 8765 m /… … 2 3Fig. 39- Figs. 38 and 39.—Laying out approximate ellipses by eight circular arcs. If the larger disk be of 4 ins. diameter, this becomes: {^-dC)R or a = 4 from which Table 4 is obtained. Example.—Required the settings for an arc of 52 ft. radius. Con-sulting the table, the third change disk of…
Machine design
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