A suspension linkage which has three-bars to locate the De Dion or live axle . There are two usual methods for arranging a Watt linkage: frame to pivot on axle housing to frame or axle to pivot on frame to axle. In either arrangement, this link structure restrains all movement of the axle to a vertical plane.
WATT LINKAGE
Meaning of WATT LINKAGE in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012