Abstract: An improved lateral pipe connection assembly that effects proper alignment of the lateral connection and restricts to the desired amount the penetration of the hub into the cored hole of the mainline pipe to which it is connected.

Abstract: A compact assembly for aligning a coring tool relative to a pipe sidewall. The coring tool includes a hollow, cylindrical hole saw mounted to an arbor that has an elongated pilot shaft centered in the hole saw. The assembly is made up of a base plate that is attachable to the pipe sidewall. A tubular sleeve is mounted to the base plate and has a bore diameter sized for receiving the pilot shaft as the hole saw is advanced toward and saws through the pipe wall, and the entire assembly is sized to fit inside the hole saw as the hole saw saws through the pipe sidewall.

Abstract: A pipe connection assembly is disclosed including a cylindrical hub having an interior diameter and a leading end having an exterior beveled surface that defines a leading edge of the hub; and a cylindrical elastomeric sleeve having an inner end that includes a radially inwardly projecting lip having a seat surface inclined to correspond to the beveled surface of the hub so the seat surface engages the beveled surface of the hub. The lip includes an annular stop projecting inwardly and having an interior diameter that is less than the interior diameter of the hub, thereby to define a stop surface that contacts the leading edge of the hub when the hub is inserted into the sleeve. The assembly restricts to a minimal amount the penetration of a hub component of the assembly into the cored hole of the mainline pipe to which the assembly is connected.