Abstract: A fluid adhesive composed of phenol formaldehyde resin and sufficient di(alkyl Carbitol) formal, where the alkyl radical contains from 1 to about 12 carbon atoms and yields a fluid composition, this fluid composition permits an elastomeric hose having an innertube of nylon to be adhered to a sulfur curable elastomer. This is reinforced by textile braid and covered with suitable Neoprene cover. This hose is suitable as a pressure hose in refrigeration or automotive uses.

Abstract: Described herein are heat recoverable articles comprising a recoverable member held in a deformed condition by a fusible member. When the fusion temperature of the fusible material is exceeded, the recoverable member is able to move in a direction toward that from which it was deformed. The recoverable member may be, for example, an elastomeric member held in a deformed state or a spring member held in a deformed state.

Abstract: A temperature responsive protective cap for a gas exhaust pipe. The cap includes a base portion which is connected to the upper end of the exhaust pipe of an internal combustion engine, and a lid or cover is hinged to the base and can be pivoted between closed and open positions. A bi-metallic element is interconnected between the base and the lid, and on operation of the engine the increase in temperature in the exhaust pipe will actuate the bi-metallic element to pivot the lid to the open position.

Abstract: A device for measuring the length of a string of well pipe as it is run into or pulled from a well bore and for counting the number of pipe collars connecting the pipe sections together includes a support frame having an opening therethrough for accommodating a pipe string. A laterally moveable carriage is mounted on the frame. A measuring wheel and a roller are connected to the carriage. Tension springs connect the roller to the carriage for urging the roller and measuring wheel into engagement with the well pipe and pipe collars. An actuator is connected to the roller for registering lateral movement of the roller. Recoil springs connect the carriage and the frame for absorbing the force of the shock caused by contact of the measuring wheel with the pipe collars and means are connected to the measuring wheel to convert rotational travel of the wheel to the length of the pipe string measured.

Abstract: A pipe or rod protector includes structure to interfit the pipe or rod end, such structure including an end cap and a split ring tightenable to retain the structure on the pipe or rod end.

Abstract: A wire-reinforced hose is provided wherein such hose is defined of a helically wound strip which has at least one integral preformed convolution therein and a wire disposed in the convolution with the helical winding being such that the convolution with the wire disposed therewithin extends in a helical path along the length of the hose and the hose has a tubular inside surface with the helical wire concealed therewithin when viewing such tubular inside surface.

Abstract: An apparatus for plugging a pipeline through a side opening and arranged such that the sealing portion may be removed and a rotary brush substituted to effect initial cleaning of pipeline should that be desired. The apparatus includes a bell-type housing which is arranged for mounting over the side opening in a pipeline to form a fluid tight chamber therewith so that the cleaning and plugging operation can be carried out while fluid pressure is present in the pipeline. The apparatus includes a drive stem which extends into the chamber through a ball and socket coupling provided in the upper part of the housing which permits articulation of the drive stem. The drive stem has supported on the lower end thereof a plug assembly which is adapted for insertion into the pipeline for effecting the seal. The plug assembly includes an annular cup-shaped seal having an annular lip which is sized for easy insertion into the pipeline at a point axially adjacent to the side opening.

Abstract: A sealing arrangement used to quickly seal leaks in pipes and the like is of the type comprising an inflatable pad which is laid against the leaking pipe surface, a counterpressure element which presses the inflatable pad against such surface and to which holding belts or the like wrapped around the pipe or the like can be connected and tightened prior to inflation of the inflatable pad. The counterpressure element does not have the form of a conventional rigid counterpressure plate but instead is a flexible counterpressure pad, whereby the inflatable pad and the counterpressure pad can very completely conform to the leaking surface to be sealed.

Abstract: A pressure accumulator for a hydraulic system includes a rigid container whose cavity contains a partition of pliable, resilient material which seals one compartment adjacent the bottom wall of the container from another compartment containing a gas under a pressure sufficient for expanding the partition into abutting engagement with the bottom wall when the fluid pressure in the one compartment equals atmospheric pressure. A passage outward from the one compartment through the bottom wall is shielded against insertion therein of any portion of the partition, and the resulting risk of injury to the partition, by a shielding member projecting from the bottom wall into the one compartment and having a frontal surface directed toward the other compartment. Its annular rim portion has a surface contiguously adjacent an annular portion of the bottom wall, and the two annular surface portions and the partition bound therebetween an annular space at atmospheric pressure in the one compartment.

Abstract: A rigid plastic composite tube includes a first sleeve of helically braided metallic ribbons, a second sleeve engaged with the first sleeve either on the inside or outside thereof, the second sleeve being of helically braided fibrous strands, said sleeves being embedded in solid plastic material to form a unitary composite tubular structure.The method of this invention for fabricating such plastic composite tubes comprises the steps of braiding metallic ribbons and fibrous strands about an elongated form, conforming the ribbons to the shape of said form by tensioning the strands during the braiding thereof, impregnating the composite sleeve with liquid hardenable plastic, and then hardening the plastic thereby providing a solidified plastic composite sleeve.

Abstract: A partially cured flexible vulcanizable core useful in the manufacture of hose is described, the core being substantially cured with the exception of a layer at the outer surface of the core which remains substantially uncured.

Abstract: Disclosed are saddles for retaining a number of ducts in rectangular bundles. Each saddle in cross section is four-sided. Each side is concave and of the same radius as the ducts being bundled.

Abstract: The present invention relates to an improved record cleaner, comprising mainly two cylindrical brushes, an axial lever slightly bent at one end, an L-shape axial lever, a handle body, an operation rod, an operation trigger, a brake button, a connecting plate, a circular plate, spring coils and joint bolts, which cleans a record surface without the defect of bending the record.

Abstract: A molded rubber article is described having an exterior or surface layer which is formed of a blend including a heat setting rubbery polymer, and a halogenated polyethylene acting as an internal mold release agent during processing and also enhancing the surface qualities of the molded article.

Abstract: The reinforced flexible duct consists of a single- or double-ply reinforcing fabric, a wire helix, and a continuous extruded liner. The fabric, wire helix, and extruded liner are continuously helically wound on a mandrel. The freshly extruded liner adheres to itself, to the helically wound wire, and to the reinforcing fabric to form a continuous reinforced flexible duct. Optionally, a narrower continuously extruded and wound scuff strip can be wound over the wire helix.

Abstract: A pulsation dampener for dampening undesired pressure surges in a fluid comprising a pressure vessel having a first zone for receiving a fluid under pressure, a second zone having a compressible fluid therein at a preselected pressure and a third zone in communication with the second zone having a compressible fluid therein at a preselected fluid pressure greater than the preselected fluid pressure of the second zone. The pulsation damper can be designed as a supplemental pressure vessel to be added to conventional dampeners. The pulsation dampener can include a magnet assembly valve.

Abstract: A method for arresting a propagating crack in a steel line pipe characterized by ductile or mixed mode fracture which involves providing a mass of material on or around the pipe which is sufficient to constrain or reduce the outward acceleration of the pipe walls behind the crack tip after the crack tip has propagated therepast.

Abstract: Elongate, deformable, composite tubing for use in maintaining or controlling the temperature of a fluid conveyed therethrough comprising one or more tubular fluid conveyance lines or one or more tubular fluid conveyance lines disposed in heat transfer relationship with one or more heating lines and having disposed in encompassing relationship thereabout an improved flexible thermal barrier. The improved thermal barrier comprises one or more flexible, flame resistant, low chlorine bearing, sheet-like layers of low bulk fibrous glass elements having a density of less than about 20 lb./cu. ft. providing improved thermal insulation characteristics in combination with improved flexibility and reduced outer diameter.

Abstract: A pressure vessel comprising a casing or container formed from two substantially cup-shaped shells, each of said shells having their free edges or rims located in juxtaposition by means of an internal annular retainer member which properly spaces such free edges to permit connection thereof by an annular weld and which also serves as the support for a deformable partition positioned in the container. The retainer member formed from a metal having a melting point below that of the shells has a first thickened annular portion of relatively great mass on one side of said annular weld and a second annular portion of smaller mass on the other side of said annular weld, said annular portions having outer surfaces in intimate contact with the inner surface of the casing and define two annular contact zones separated by an intervening zone in which the weld is formed, said deformable partition being supported by said retainer member at the edge of said first annular portion remote from the annular weld.

Abstract: An orifice fitting mechanism for pipeline flow measurement systems includes a fabricated body structure that is so fabricated that internal and external body plate connection welds may be effectively utilized in order that the body structure will have sufficient structural integrity to withstand the forces of high pressure service. Internal and external welding of the body plates is enhanced through the provision of internal hub rings that define portions of the internal through conduit structure of the body and also define a properly oriented transverse opening that effectively receives an orifice plate carrier assembly in sealed relation therein. The hub rings also provide for close positioning of pressure tap passages as desired for accurate flow measurement. A replaceable valve support mechanism is employed allowing the slide valve system of the orifice fitting to be field replaceable without requiring replacement of either of the upper or lower body sections.