Abstract: Abutting ends of pipes are aligned by apparatus embodying a body having a threaded opening therein extending axially of the abutting pipes. A threaded actuator member engages the threaded opening and has a conical end defining a cam surface. A radially extending extendible member is carried by the body with its outer end in position to engage the inner surfaces of the abutting pipes and with its inner end extending inwardly of the opening in the body and having a cam surface positioned to engage the cam surface on the actuator member. Radially extending fixed members are secured to the body in angularly spaced relation to each other and to the extendible member with the distance from the center line of the body to the outer ends of the fixed members being equal the radius of the abutting pipes.