The Bennett, Goldberg and Myard linkages—in perspective

Abstract The linkages due to Bennett, Goldberg and Myard have passed into the classical literature, despite the considerable misconceptions still associated with them. Modern linkage analysis increasingly touches on these loops, or actually depends on them, as researchers extend their range of operations. The three groups of linkages are strongly inter-related, so that it is convenient, if not necessary, to treat them all at once. The paper sets out to completely clarify the linkages and the various relationships, including the derivation of comprehensive closure equations, something not previously attempted.