Abstract: A junction box is adapted for flush and straight mounting in a hollow core of a masonry block, without the use of debris or the like in the core. The junction box has a thickness along a pair of side walls thereof defined by a separation of a generally-open front face from a generally-closed rear face. The junction box has a resilient tail-like member that extending away from the rear face of the junction box. The tail-like member has first and second ends with at least one bend or curvature along an intermediate portion and a length such that, in a compressed state, the second end bears against a first inside wall of the hollow core and at least portions of the junction box front face bear against an opposing second inside wall of the hollow core.

Abstract: A hollow conical line-pulling carrier which is connected with the line being pulled by a connection on the interior of the carrier spaced upwardly from the base of the cone for pulling a messenger line through electrical conduit. The conical portion is made of extremely light-weight plastic, permitting it to be either blown through the conduit or sucked therethrough. Because the connection to the cone is spaced upwardly from the base, it permits the base of the cone to adjust to debris, imperfections, or water in the conduit without having the cone collapse and thus permit the messenger line to continue to be pulled through the conduit.