Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 123
d to describe acircular arc passing through Pi. Under these conditions, the fourthpin, D, will trace out a straight line perpendicular to P1P2, It will benoticed that all the links in the chain move parallel to one plane.To prove this statement, it is clear that in cdl positions of themechanism the… … FiQ. ni. GEOMETRICAL PROPERTIES. 13
Machinery, Kinematics of
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