Figure 5

Linkage variations. Linkages (a) II and (b) III are variations of the Bennett linkage and linkages (d) IV, (e) V and (f) VI are variations of the Bricard linkage.

Linkage variations. Linkages (a) II and (b) III are variations of the Bennett linkage and linkages (d) IV, (e) V and (f) VI are variations of the Bricard linkage.