US Patent 7337640 Propeller repair apparatus

A propeller repair apparatus suitable for repairing and changing the pitch of a propeller includes a first rail parallel to and spaced from a second rail. A tapered shaft extends upwardly between the first and second rails for mounting a propeller thereon. A first frame extending between the first and second rails is movably mounted on the first and second rails for movement along the first and second rails. In one embodiment, a first actuator is pivotally mounted to the first frame and includes an extendible ram engagable with a propeller mounted on the tapered shaft.