Patent ID: 7059961

Claim:
An adjustment mechanism for effecting movement and clearance spacing of a concave relative to a rotor of a combine, said adjustment mechanism comprising: at least one rotatable shaft; at least one rotatable sprocket, said rotatable sprocket mounted on said rotatable shaft for rotation therewith; at least one linking assembly, said linking assembly including at least one chain, said linking assembly coupling said rotatable sprocket to said concave; and at least one capturing device, said capturing device non-rotatably mounted about said rotatable shaft and positioned adjacent to said rotatable sprocket, said capturing device including a travel limit, said second end of said chain including a connection link having a removable locking member, said travel limit configured to securely receive said removable locking member of said connection link and control and limit travel of said concave toward said rotor of said combine upon rotation of said rotatable member from an “opened position” to a “closed position.”