Abstract: A coupling for connecting substantially identical external threaded ends of tubular conduits and the like in end-to-end relation, the coupling including a first or outer coupling member having an internal chamber and adapted to be threaded onto the threaded end of either of the conduits to be connected, and a second coupling member disposed within the chamber in the outer coupling member and adapted for threaded engagement with the threaded end of either conduit. The first and second coupling members are adapted to be threaded onto a selected one of the conduits in a manner enabling an axial alignment of the conduits by relative lateral movement therebetween after which the outer coupling member is threaded onto the other of the conduits to draw the adjacent ends of the conduits into abutting end-to-end relation.

Abstract: A coupling for connecting tubular conduits and the like in end-to-end relation, the connected ends of the conduits having identical external threads formed thereon. The coupling includes inner and outer coupling elements, the inner of which is longitudinally moveable within an internal bore in the outer and both of which have threaded internal bores which enable both elements to be threaded onto either of the conduit ends to a position enabling alignment of the conduits by relative lateral movement therebetween after which the outer coupling element may be threaded onto the other of the conduits so as to draw the adjacent ends of the conduits into aligned abutting relation. In an alternative embodiment, the inner coupling element may be moved longitudinally onto the threaded end of the conduit without requiring threading thereon, after which the inner coupling element may be removed by unthreading.

Abstract: A bending clamp is disclosed for use with a pipe bending apparatus having a generally arcuate shaped bending shoe about which a tubular pipe may be bent. The bending clamp is cooperable with the bending shoe to retain the pipe against the bending surface of the bending shoe so as to prevent wrinkling, flattening or collapse of the pipe during bending of the pipe.