Fixture for welding pipes

Claim 2

A fixture for holding the ends of two pipes together during a butt welding operation, including in combination: a lower clamp assembly having a clamp member and an arm extending horizontally therefrom, an upper clamping assembly having a clamp member and an arm extending horizontally therefrom and terminating in a sleeve, both said clamp members being of substantial length for engagement on upper and lower surfaces of both said pipes for a substantial distance on both sides of the place where they abut, said clamp members engaging and supporting said pipes, a threaded rod having a lower end secured rigidly to the arm of said lower clamp assembly and extending upwardly therefrom, said sleeve being slidable relative to said rod, and a nut having a handle thereon and engaging the rod threadably above said sleeve and to bear against said sleeve to cause the upper clamping member to move toward the lower clamping member and to clamp a pipe firmly.

Claim 3

The fixture of claim 1 wherein central portions of the outer edges of the clamps are recessed to give a greater weld distance in between clamps.

Claim 4

The fixture of claim 1 wherein said upper assembly provides a pivotal connection between its clamp and its arm.

Claim 5

A fixture for holding the ends of two pipes together while butt-welding the two ends together, including in combination: a lower clamp member comprising a first angle iron, an arm extending perpendicularly to it out to the side from the outer face thereof, an upper clamping member comprising a second angle iron, both said first and second angle irons having a substantial length, long enough to bridge across the two pipes where the pipes abut and to engage both pipes for a substantial distance from their abutment, a short member extending perpendicularly and vertically upward from the outside surface of said second angle iron, a bar extending perpendicularly to said short member and laterally, generally parallel to the said arm and terminating in a sleeve, a threaded rod having a lower end secured to said arm and extending upwardly therefrom, said sleeve being slidable relative to said rod, and a nut having a handle thereon and adapted to engage the rod threadably on the opposite side of the sleeve from said arm and to bear against said sleeve to cause the upper clamping member to move toward the lower clamping member and to clamp a pipe firmly.

Claim 6

A fixture for holding the ends of two pipes together while butt-welding the two ends together, including in combination: a lower clamp member comprising a first angle iron, an arm extending perpendicularly to it out to the side from the outer face thereof, an upper clamping member comprising a second angle iron, both said first and second angle irons having a substantial length, long enough to bridge across the two pipes where the pipes abut and to engage both pipes for a substantial distance from their abutment, a short member extending perpendicularly and vertically upward from the outside surface of said second angle iron, a bar extending perpendicularly to said short member and laterally, generally parallel to the said arm and terminating in a sleeve, a threaded rod having a lower end secured to said arm and extending upwardly therefrom, said sleeve being slidable relative to said rod, and a nut having a handle thereon and adapted to engage the rod threadably on the opposite side of the sleeve from said arm and to bear against said sleeve to cause the upper clamping member to move toward the lower clamping member and to clamp a pipe firmly.

Claim 7

The fixture of claim 4 wherein central portions of the outer edges of both said angle irons are recessed to give a greater weld distance along the ends of pipes clamped between said clamping members.

Claim 8

The fixture of claim 4 wherein said short vertical member and said bar are pivotally connected together for free movement in a plane of said second angle iron.