[Fig. 131] shows the three link or commonly termed platform type of spring used only in rear suspension on the heavier models.
Fig. 131. Platform Spring
[Fig. 132] shows the front type of cantilever spring. The front end of this type of spring is bolted to a seat on the front axle, while the rear end may be fastened directly to the under side of the frame or attached to a specially arranged casting seat at the side of the frame. This type of spring is sometimes employed in multiple formation.
Fig. 132. Cantilever Spring, Front
Fig. 133. Cantilever Spring, Rear
[Fig. 133] shows the rear type of cantilever spring, which may employ a shackle arrangement on one or both sides, while a hinged seat is usually employed near the center or slightly over-center toward the front end.