The Dresser 60 & 160 Bell Joint Clamps permanently stop or prevent leaks through the jointing material of cast iron bell-and-spigot joints. Completely adjustable to provide a close fit on both the pipe bell and spigot, one standard clamp fits virtually all the various makes of pipe within  a nominal size. They can be quickly installed without interruption of service. A large, special rubber-compound gasket shuts off the leak when compressed by the spigot ring (around the spigot) drawn up, in turn, by bolts connected to a bell ring (anchored on the bell).