Patent ID: 8870156

Claim:
Drive means for a slide valve having two parallel spindles ( 10 ) which are driven in rotation by at least one motor ( 11 ), travelling nuts ( 12 ) which engage the spindles ( 10 ) and are movable in the longitudinal direction of the spindles by rotation of the spindles ( 10 ), and a cross-yoke ( 13 ) which is arranged transversely with respect to the spindles ( 10 ) and is connected to the travelling nuts ( 12 ) on the one hand and to a rod ( 14 ) on the other hand, which rod is arranged in parallel between the spindles ( 10 ) and is connected or connectible to a slide plate, the rod ( 14 ) being axially movable by the motor ( 11 ) for the actuation of the slide plate, wherein the travelling nuts ( 12 ) and the rod ( 14 ) are each articulatedly connected to the cross-yoke ( 13 ) via respective pivot joints.