Abstract: To facilitate the repair of short sections of pipe by providing a lining in situ, a repair carrier containing the repair lining is moved into position adjacent the pipe length to be lined, the lining is forced out of the carrier into position in the pipe where it is fixed in position and the carrier is then removed from the pipe leaving the lining in place. A flexible tube forming a part of the carrier is used to initially position the lining in the carrier and then to force the lining out from the carrier and urge it against the interior of the pipe, preferably by eversion.

Abstract: Break-away closures are formed by an injection molding process with a closure part in interference path with a forming core for interference in use with a counterpart surface of a container neck. The process and apparatus disclosed permits stripping of the formed closure from the core by selectively creating free encircling space about the interference closure part for expansion thereof during stripping. The closure has detent surface molded therein which assists the stripping operation and the process and apparatus provide for the application of stripping forces at spaced locations simultaneously to permit stripping of the closure in part without axial loading thereof.

Abstract: A continuous molding method is disclosed as providing a sliding seal chamber in which moving molding surfaces form and can provide means for the induction of such temperature changes required to produce finished products from the chosen raw material.

Abstract: The manufacture of perforated vinyl strips by feeding the strip material continuously without interruption to a punching apparatus that has two pairs of cooperative rotary dies that punch out closely spaced perforations with the first pair of dies scoring the perforations and the second pair punching out the perforations.

Abstract: A molding unit for forming a frozen liquid confection and the like comprising a container of molded or a plastic material and integrally molded with a ring-like member, which ring-like member is readily severable from the container and positioned between posts or pins on the container so that a portion of the ring-like member extends into the container to be frozen into and embedded in the frozen product with a portion of the ring-like member extending exteriorly so that it may be grasped and used as a handle to hold the finished frozen product.

Abstract: A method of casting concrete blocks having a fractured face. A pattern or frame is embedded in a mass of concrete within a mold and after the mass is compacted within the mold and about the frame, the frame is moved relative to the compacted mass so as to randomly fracture the concrete mass between the elements of the frame. The frame together with a portion of the fractured mass are removed from the finished block.