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 333
t E, Fig. 27, is made to travel along thearc of a circle EAE, the path of point B will be very nearly a straightline. It is easy to find the radius of the arc since it passes throughthree points whose positions are known. In Fig. 27 the lever is shown at its two extreme positions, BE, andBE. Draw… … Fig. 27. ;Eig.*28. Figs. 27 and 28.—A straight line lever mechanism. In Fig. 13 let and we have tan^ BE = aOE = bDA=r b sin a and r = a(i —cos a)h sin a (a) Since angle a is known, the value of angle 0 will be easily found byformula {a) when the sine of 26 will be taken from trigonometricaltables…
Machine design
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