Abstract: To align the edges of plates prior to joining them, a generally cylindrical anchor member is spot welded at one location on one of its rims to a plate. A mounting element of a clamp body member slidably engages the anchor member. A force applicator element of the clamp body member is generally laterally spaced from the mounting element. The mounting element includes a generally arcuately extended semi-cylindrical socket portion of such a diameter that it slidably and snugly mounts the socket portion thereon. The rim portions of the anchor member provide a plurality of spot mounting locations for breakably spot welding, brazing or otherwise temporarily attaching the anchor member to a plate or other substrate. At least one of the force applicator or mounting elements is adapted to the incremental application of aligning force on adjacent plates. The body of the clamp bridges between the respective plates that are to be brought into line with one another.

Abstract: To align the edges of plates prior to joining them, a generally cylindrical anchor member is spot welded at one location on one of its rims to a plate. A mounting element of a clamp body member slidably engages the anchor member. A force applicator element of the clamp body member is generally laterally spaced from the mounting element. The mounting element includes a generally arcuately extended semi-cylindrical socket portion of such a diameter that it slidably and snugly mounts the socket portion thereon. The rim portions of the anchor member provide a plurality of spot mounting locations for breakably spot welding, brazing or otherwise temporarily attaching the anchor member to a plate or other substrate. At least one of the force applicator or mounting elements is adapted to the incremental application of aligning force on adjacent plates. The body of the clamp bridges between the respective plates that are to be brought into line with one another.

Abstract: A platform or cart with a multitude of generally spherical rollers arrayed across most of the bottom of the cart so as to provide low resistance passage over soft or sandy surfaces. The rollers revolve about axles that are carried in flanges on the underside of the platform.