Abstract: A mechanism for adjusting the position of the back of a reclining seat comprises a sector of circular toothed interior configuration joined to a movable member attached to the seat back. The seat back member is rotatably joined to a member fixed to the seat. A restraining member is slidably mounted on said fixed member with a toothed outer edge to engage said toothed interior configuration on the movable back. The restraining member is moved by means of a lever toward and away from a connect and disconnect position to allow movement and fixation of the seat back.