Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 129
ay lie either above or below theline AqBq. § 84. Tohebicheffs Parallel Mo-tion.—A second parallel motion,consisting of four turning pairs,which generates an approximatestraight line, is Tchebichef s. Thetwo levers, PiB and PgD, are ofequal length, and are crossed, andthe coupler DB, in the mean… … ^777777777777777P777^^ Fio. 120. GEOMETRICAL PROPERTIES. 119 Thus, in the position of the mechanism represented by the brokenlines, the central point of the coupler is Ai, which practicallylies on the line BD. The proportions of the mechanism will,as in the grasshopper motion, depend on the limits…
Machinery, Kinematics of
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
