Abstract: A temporary reusable storm drainage conduit plug sized to slidably fit into either exposed end (male or female end) of a length of tubular conduit situated within the ground. The device in use prevents dirt and debris from entering the open end of conduit already in place during storm drainage construction and is easily removable when the construction is ready to proceed further.

Abstract: The method and apparatus are useful in positioning components, for example two half shells of a clamp for a pipeline or other cylindrical member (10). One half-shell (12) is clamped by studs (56) to brackets (52) on a carriage (16) which can then traverse about the member (10) by engagement of sprockets (30, 28) with chains (18) encircling the member (10). A second half-shell is then lowered by crane onto the member (10). The two half shells are clamped together by studs and the brackets (52) released and swung clear. The apparatus can then be removed if desired. Drive to the carriage (16) is through a flexible shaft (70), gearbox (34) and sprockets (30) connected together by drive shaft (33). Wheels (26) roll on the member (10).

Abstract: A plastic pipe having improved resistance to methanol-containing fuels and improved mechanical properties is provided. This is achieved by a multilayer plastic pipe consisting of at least one outer layer based on polyamide and at least one layer of a linear, crystalline polyester modified with isocyanates. With the aid of the invention it is possible to obtain plastic pipes having improved barrier properties against methanol-containing fuels and dimensional stability and mechanical load-bearing capacity.

Abstract: A hose continuous in series throughout an entire length integrally formed with a water-intake port, L-shaped bending part, an intermediate part and a drain port in this order from one end of the hose to the other. The substantially general part of the intermediate part is formed with corrugations having inclined side walls of unequal length which are constructed so that shorter inclined walls can be easily brought into their contracted positions substantially parallel to the longer inclined walls and they can self hold their positions. The hose has such a length that the substantially whole length thereof can be housed in an outer casing of a washing machine in its contracted state.

Abstract: A flexible pipe with improved thermal protection in which a fluid is liable to flow under pressure and comprising at least one tightness sheath or tube of polymeric material, at least one reinforcement therein further comprises as thermal protection, a sheath of composite material comprising cork granules and a flexible metal tube which is disposed outside said sheath of composite material. Application notably to flexible pipes for oil installations.

Abstract: A conduit tube is arranged to include intersecting partition walls dividing the associated conduit tube into four compartments to permit transport and positioning of cable within each compartment in a discrete relationship. The first and second ends of the conduit tube include locking blades, with each locking blade arranged for reception within an associated slot of a second tube member to secure a plurality of the conduit tubes together.

Abstract: An elongated fluid detection device, together with a body of absorbent material, is located between the inner surface of a pipe and an impervious liner spaced from the inner surface thereof, the detection device being operatively connected to an external station. The impervious layer may be of a type normally used for relining defective pipes in situ, and the body of absorbent material, together with the fluid detecting element, preferably substantially filling the cylindrical space between the inner surface of the pipe and the impervious liner.

Abstract: A temporary pipe plug comprised of a lightweight main body encircled by an outer sealing surface. The outer sealing surface has a rounded edge which contacts the gasket on the bell end of a sewer or water pipe. A boss is affixed to the main body which provides attachment of a chain to the plug. The chain is used for easy removal of the plug.

Abstract: A corrosion inhibiting system for protection of the threads of oil country tubular goods, including a vapor phase corrosion inhibitor and a liquid phase corrosion inhibitor in water solution, and a transparent thread protector. The threads may be inspected for corrosion without removing the thread protector or the corrosion inhibitor, and the corrosion inhibitor may be left on the threads for use in combination with an anaerobic sealing compound.

Abstract: There is disclosed a line blind assembly having a pair of tubular members adapted to be connected in a flowline and connected to one another by bolts having nuts on their ends to permit sealing faces on the inner ends of the tubular members to be tightly engaged with sealing faces on the opposite sides of either a disc or a spacer ring upon removal of the other from within the space. A series of circumferentially spaced, hydraulically operable, extendable and retractable actuators are connected at one end to one tubular member and the other end to the other tubular member, so that the sealing faces may be moved toward and away from one another independently of the bolts and nuts.

Abstract: A line blind assembly having a pair of tubular members adapted to be connected in a flowline and connected to one another by bolts having nuts on their ends to permit sealing faces on the inner ends of the tubular members to be tightly engaged with sealing faces on the opposite sides of either a disc or a spacer ring upon removal of the other from within the space. A series of circumferentially spaced, hydraulically operable, extendable and retractable actuators are connected at one end to one tubular member and the other end to the other tubular member, so that the sealing faces may be moved toward and away from one another independently of the bolts and nuts.

Abstract: A room-temperature shrinkable tube includes an elastic tube stretched to cover a cylindrical shell. An object to be coated by the elastic tube is inserted into the cylindrical shell, and the cylindrical shell is slid out from the elastic tube, so that the resilience of the elastic tube brings it into contact with the surface of the object.

Abstract: A flexible metal hose assembly includes a corrugated tube surrounded by a braid. A modified braid ring is mechanically interconnected with an annular hex member. The modified braid ring is then located at the ends of the tube braid and welded to a fitting. The annular hex member of the modified braid ring still provides wrench flats to facilitate make up of the fitting.

Abstract: A non-corrosive double-wall tubing in which an unbrazed, unsealed continuous double-wall tube of a given circumference is formed from a metal sheet composed of a first non-ferritic metal having a first defined region of exposed non-ferritic metal and a second region of a second metal in overlying relationship thereto, said exposed region having a width essentially equal to the circumference of the finished tube.

Abstract: Pipeline plugger has a piston (22) on its push-pull rod (16) in a cylinder (23) the lower end (25, 26) of which is sealed to the swivel member (24) in which the push-pull rod is sealingly slidable, the upper end (29) of the cyliner (23) is slidably sealed on the push-pull rod, a vent hole (30) to atmosphere is provided from the cylinder (23) adjacent the swivel seal (15), and a bleed passageway (31) is provided in the push-pull rod from adjacent the plug (18) to just above the piston (22), whereby, when the damper type valve (12) is opened, gas admitted into the chamber (14) is bled through the passageway (31) to above the piston (22), thus applying a downward load on the piston annulus to counterbalance the upward gas load on the push-pull rod (16), so that the plug (18) can then be pushed down easily into the pipe (11) through the valve (12), the branch (13) and the hole (19) in the pipe.

Abstract: A tubular film sausage casing comprising a cellulose aminomethanate wherein from 0.5 to 30 numerical percent of the cellulose hydroxy groups have been substituted with aminomethanate groups. The casing may be crosslinked or may be fiber reinforced.

Abstract: A pneumatic liquid injector de-icing system designed for use on air brake lines of a train includes an alcohol storage tank provided with fittings for engagement between the train air supply lines and the train brake lines. The storage tank may be provided with a pressure gauge for monitoring pressure in the system. In use, when operating in cold conditions where brake line freezing is encountered, alcohol is introduced into the brake lines. The alcohol absorbs moisture and thaws ice in the brake lines so as to prevent ice-up. In an alternative embodiment, one line of the storage tank is terminated by a plunger so it may be used to unclog toilets. In yet another alternative embodiment, one line of the storage tank is adapted to be connected to an RV so the latter may be winterized.

Abstract: A pipeline plug is disclosed wherein the rear portion of the plug is axially movable relative to the body of the plug and is provided with pipeline engaging drag inducing members. While the plug is propelled by the pipeline fluid flow, the dragging effect maintains the rear portion at its rearmost extreme. When the plug reaches its determined position in the pipeline, the reversal of flow in the pipeline is resisted by the drag means with the resulting shift of the rear portion forwardly of the plug, triggering the locking of the plug in place and subsequent expansion of the seals of the plug, all caused solely by the pressure differential generated in the pipeline to be worked upon.

Abstract: A device for preparing liquid to thin pulpy media having an inner chamber 1 is substantially symmetrical about longitudinal axis, and the inner chamber has a neck end and a passage end. An outer circumference of the inner chamber tapers down from the passage and to the neck end. An outer chamber surrounds the inner chamber, and the outer chamber is also substantially symmetrical about the longitudinal axis. The outer chamber communicates with the inner chamber through an opening in the neck of the inner chamber, and an opening in the passage end of the inner chamber. A centrifuge wheel is positioned inside the outer chamber and outside the inner chamber. The centrifuge wheel has an intake pipe extending from a center of the centrifuge wheel, and this intake pipe extends into the neck opening of the inner chamber. The centrifuge wheel and the intake pipe are substantially symmetrical with, and rotate about the longitudinal axis.

Abstract: A tube plug for sealing the end of a tube is provided, which includes a cylindrical housing member sized for insertion within the end portion of the tube. The housing member has a longitudinal blind bore comprising a smooth portion communicating with a threaded portion. An eccentric locking ring is mounted on the housing member for locking the inserted housing member against rotation relative to the tube. An insert member having a threaded end portion is received within the threaded portion of the bore. An enlarged portion is positioned to be drawn within the smooth portion of the bore in response to rotation of the insert member threaded end portion in the bore threaded portion. A tapered portion is provided between the end portion and the enlarged portion. The tapered portion is formed separately from the remainder of the insert member in the form of a truncated cone with a threaded bore therethrough for receiving the threaded end portion of the insert member.