Dunkerley, Stanley, 1870- · London, New York [etc.] Longmans, Green · leaf 423
to the mechanism itself.)The hinge-lines, produced geometrically to their points of nearestapproach, would extend from the mechanism outwards to therertices of the quadrilateral. The possibility of double-cranks suggests itself in connectionwith varieties of form. Two cranks would be set out, say… … Fig. 449. made by two connecting-rods; the whole being a skew varietyof the common double-crank arracgement, but with the peculiaritythat the two connecting-rods, though separate pieces, would moveas one. Such an arrangement would be equivalent to a singleconnecting-rod with extra long hinge-lines;…
Machinery, Kinematics of
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