Device for automatically taking up play in a mechanical control

A compensating device for a mechanical control linkage adapted to be interposed between two coaxial separate portions of said control linkage, said device comprising two connecting parts respectively connected to said portions of said control linkage and normally telescoping axially one relative to the other in a rest condition of said device, and means for temporarily coupling said connecting parts together for movement in one axial direction upon actuation of said control linkage, wherein a first of said connecting parts is resiliently biased in the direction opposite said one axial direction so as to normally engage in abutment a first stationary stop defining a rest position for said first connecting means, said coupling means including an eccentric wedging member rotatably supported on said first connecting part and adapted to selectively come into engagement with an adjacent surface of the second connecting part upon pivotal movement of said eccentric wedging member from a rest position, said eccentric wedging member being displaced positively towards its said rest position by cooperating in engagement with a second stationary stop when said first connecting part reaches its said rest position.