Abstract: A flare for waste gas disposal by combustion is disclosed particularly suited for use in remote areas such as deserts, where space is not limited and in which the portions of the flare exposed to radiation are of heat resistant material, the remainder of the flare and its supply connections being covered for protection against deleterious radiation effects thereon, provisions being made for protection of the waste gas supply line, pilot gas supply line and the ignitor supply line to minimize problems of expansion and contraction and to avoid erosion of the protective provisions.

Abstract: The invention relates to contact shoes secured to ballast weight surfaces adjoining a pipeline, with at least two of said shoes being mounted below the pipeline longitudinal axis. The ballast weights are interconnected above the pipeline by means of an articulated joint and securing means, the latter being mounted above the articulated joint and comprising a resilient distance piece.

Abstract: A long-distance heating conduit comprising one or more tubes which carry the heating medium, are laid in the conduit and are surrounded individually or jointly by at least one layer of heat-insulating material and are covered by at least one cover foil which extends in a closed path round the tube or tubes and is provided with holes.

Abstract: A method and apparatus for supporting pipe employing a plurality of spaced pipe carriers driven into the ground. Each pipe carrier includes a straight rigid body formed from rod stock of rectangular, i.e., square, cross-section. The lower portion of the body is provided with opposed, rigid upwardly diverging barbs, also of rectangular, i.e., square, cross-section. The upper end portion of the body carries a rigid pipe cradle. In one embodiment, the cradle is formed by spaced, laterally projecting, brackets. In other embodiments, the cradle is curvilinear, opening upwardly or downwardly. In still other embodiments, the cradle is an annulus. The cradles and barbs are formed of the same rectangular, i.e., square, rod stock as the body. The opposed surfaces of each cradle is in the same common plane with the opposed surfaces of the body and these planes are perpendicular to the surfaces of the barbs. The cradles, radially, partially or completely circumscribe the periphery of the pipe.

Abstract: A long-distance heating conduit comprising one or more tubes conveying the heating medium, which tubes are supported in the conduit by support means consisting of an insulating material resistant to compression and surrounded by a heat-insulating material also resistant to compression and enclosed by cover foils having holes, the size and shape of which are dimensioned in such a manner that water substantially cannot penetrate, but that they are permeable to gases and vapors.

Abstract: Cast-in-place concrete pipe reinforced with fibers and the method of making such reinforced cast-in-place concrete pipe is disclosed. The apparatus used in making such reinforced cast-in-place concrete pipe is described.

Abstract: A device for supporting in selected alignment pipelike elements, such as sectional sewer pipes and drain tiles, in an excavation during the positioning of the pipe therein and prior to the filling in of the excavation with particle material. The device consists of an upright two-legged frame and movable pipe-supporting slides that provide for easy removal of the device from the excavation after it has supported and maintained the alignment of the pipelike elements during the pipe-laying operation.

Abstract: A method of laying heating medium conveying pipes, wherein a pipe receiving trench is prepared and pipes, wrapped in heat insulating jackets permitting transversal relative movements of the pipes within the jackets, are placed in the trench. The pipes and the insulating jackets are then bent to follow a serpentine path and the trench filled to cover the pipes.

Abstract: A trench containing a pipeline is backfilled by temporarily supporting the pipeline at grade in the trench on deflatable airbags spaced along the bottom of the trench. The trench is then backfilled below and around the pipe by pneumatically blowing a granular fill material into the trench first beneath the pipe and then progressively upwardly about its opposite sides to about its spring line so as simultaneously to backfill the trench and uniformly compact the fill material about the pipe without leaving any voids. The fill material is blown into the trench through a pair of opposed air ducts with upturned lower outlet ends extending into the trench on opposite sides of the pipe so that backfilling progresses upwardly on opposite sides of the pipe simultaneously. As backfilling operation progresses along the trench and approaches each support pad, the pad is deflated and removed so that the operation can proceed uninterruptedly.

Abstract: A ground flare for burning of waste gas is disclosed having groups of burners in a pit for selective utilization in accordance with the quantity of gas to be burned together with controls therefor, and with provisions for reducing expansion of the headers carrying the gas. The burners are in groups, the burners in each succeeding group being in a predetermined increasing number to provide great variability in capacity of gas to be burned and with the burners being utilized more effectively than heretofore upon variation in the quantity of the waste gas delivered to be burned.

Abstract: The installation of pipes having oval cross sections is made easier by including an installation portion which has a flat base perpendicular to the major axis of the oval cross section.

Abstract: An arrangement of insulating, thermal absorbing and/or dissipating elements controlling heat flow between a member and its environment. In certain permafrost environments, for example, one or more elements of the system can include a heat sink and/or a thermal bleed where the member is heated. The arrangement controls heat flow from a heated member at such a rate that the total heat transfer does not exceed the limits of the residual heat capacity of permafrost below the freezing point thereof during cyclic climatic influences. The arrangement takes advantage of the fact that artificial heat from the heated member can be controlled, while natural solar heat is balanced by the seasons. The elements also serve to maintain relatively stable temperature differentials between heated or cryogenic materials and their adjacent ground support, so there is a minimal effect of one on the other.

Abstract: A long-distance heating conduit comprising one or more tubes conveying the heating medium, which tubes are supported in the conduit by support means consisting of an insulating material resistant to compression and surrounded by a heat-insulating material also resistant to compression and enclosed by cover foils having holes, the size and shape of which are dimensioned in such a manner that water substantially cannot penetrate, but that they are permeable to gases and vapors.