Abstract: A flexible pipe saddle molded from a flexible resilient polymer includes a hollow, semi-cylindrical saddle portion adapted to overlie the external surface of a main pipe having a hole therein. The saddle is provided with a radially directed aperture with a radially, inwardly directed, circumferential flange extending about the aperture and extending into the hole in the pipe to locate the saddle relative to the hole in the pipe. The saddle is also provided with a hollow tubular sleeve having a stepped, internal cylindrical surface defining a stepped shoulder for limiting the insertion of a lateral pipe. A hollow tubular bushing of the same material as the saddle is removably disposed in the hollow tubular sleeve and has a radial thickness less than the radial dimension of the stepped shoulder so that a smaller diameter lateral pipe may be used and still abut against the stepped shoulder.

Abstract: This invention provides a method and apparatus for injecting an additive into a stream of homogenized plastics material. The apparatus includes a homogenizing means such as a screw conveyor for the plastics material and at least one injector for injecting an additive, usually a colorant, into the boundary layer only of the homogenized plastics material prior to the latter being subjected to mastication in a gear pump. The additive is injected into the plastics material at such a position in the boundary layer that as the material passes through the gear pump the additive is mixed substantially wholly with the boundary layer of plastics material and for this purpose the injection of additive is at a position such that it passes through the gear pump in the region of the intermeshing gears of the pump.

Abstract: In accordance with this invention there is provided a method of and apparatus for producing a combustible product from waste materials of which part of the fuel consists of pulverized combustible solid waste material, this part of the fuel being at least coated with combustible liquid waste.