Abstract: A method of heat treating a nickel base superalloy comprising solution treatment at 2050.degree. to 2150.degree. F. (1121.degree. to 1177.degree. C.) for about 2 hours and cooling at a rate at least as rapid as still air; stabilization at 1750.degree. to 1850.degree. F. (954.degree. to 1010.degree. C.) for 1/4 to 4 hours and cooling at a rate at least as rapid as still air; and precipitation hardening at 1350.degree. F. (732.degree. C.) for at least about 8 hours and air cooling. The heat treated product contains a low level of precipitated grain boundary carbides, and exhibits an optimum balance of tensile strength, stress rupture life and creep strength, along with reduced residual stress in the product.

Abstract: Thermoset microporous polymer lubricating compositions and methods for forming the same are disclosed. Each thermoset composition disclosed includes a thermosetting polymer that is formed into a microporous matrix capable of receiving a lubricating oil in the interconnected microscopic pores of the matrix during formation thereof, with the lubricating oil being thereafter retained in the pores until released through capillary draw, externally applied forces or elevated temperatures.

Abstract: A method of producing a weld overlay on a ferrous base metal surface, by applying to the surface by electric arc welding a plurality of layers of an austenitic stainless steel filler of specific composition, and providing a flux which produces a substantially fully austenitic overlay at least in the uppermost layer. The overlay has improved machinability, metal-to-metal wear resistance and corrosion resistance, and the capability of work hardening.

Abstract: A process for magnesium desulfurization of ferrous metal melts in a vessel comprising the provision of a fluid, high sulfur capacity slag wherein the weight ratio of slag constituents associated with sulfur to slag constituents associated with oxygen is greater than 0.8, followed by addition of magnesium to the melt in an amount sufficient to combine with the sulfur in the melt, transfer to the sulfur removed by the magnesium addition to the slag, and retention of the removed sulfur in the slag, thereby improving magnesium desulfurization efficiency and substantially eliminating sulfur reversion from the slag back to the melt.

Abstract: A counterbalanced, long stroke pumping system provided with a composite material lifting string is conformed for optimum separation between the frequency spectra entailed in the pump drive and the fundamental resonances of the string. This separation allows for an expanded control bandpass within which an adaptive control system may be rendered operative to adjust stroke mechanics to meet pump-off conditions or other pumping anomalies.

Abstract: A method of heat treating cold reduced, aluminum-killed low carbon steel strip containing up to 0.1% carbon, at least about 0.015% acid soluble aluminum, and manganese at least 10 times the sulfur content, comprising hot rolling, coiling at less than 1200.degree. F., cold rolling to strip, and pretreating by heating at a temperature and for a time sufficient to precipitate aluminum nitride before substantial recrystallization occurs, thereby retarding recrystallization during subsequent heating.

Abstract: A rod having end portions of a hardness characteristic of a pearlitic microstructure, the remainder comprising an annular outer region and a core region, at least the outer region having a surface hardness greater than Rockwell C 50. A method of producing heat treated rods involves passing a heated rod through at least one quench zone, initiating a liquid quench after the leading end of the rod has emerged from the quench zone and turning off the liquid quench before the trailing end of the rod enters the quench zone.

Abstract: Well derrick in which the travelling crown block is operated by hydraulically operated linear actuators and a travelling block is operated by special reeving, the arrangement advantageously being such that the loads being handled bypass the tower of the derrick so that the cost of the tower can be reduced. The reeving system results not only in uniform and symmetrical force distribution relative to the crown block and travelling beam but also in a travel of the travelling beam twice the stroke of the linear actuators.

Abstract: Method and apparatus for establishing a seal across the annulus between two concentric rigid members to seal the annulus against large fluid pressures. A specially formed seal ring, advantageously of low carbon steel in the annealed state, is preliminarily inserted into the annular space between two concentrically opposed surfaces, then forced further into that annular space to force the sealing ring, with accompanying plastic deformation of a portion of the ring, into sealing engagement with both of the concentrically opposed surfaces.

Abstract: A method and apparatus for scribing a severance line around the circumference of a pipe employing a protractor with a rotative arm and alignment guide pin; and a laser beam producing a vertical line beam. The protractor is mounted on the pipe to be cut so that the protractor is parallel with respect to the longitudinal center line of the length of the pipe. Once the protractor is parallel and set to the desired angle, the laser beam is energized to project a line upon the pipe which is in alignment with the alignment guide pins. The projected line is chalked on the pipe and the pipe is cut in any conventional manner.

Abstract: Nodular graphite type or compacted graphite type cast iron are formed by placing a low oxygen potential slag layer over a molten iron bath, adding magnesium in an amount sufficient to reduce the sulfur content in the molten iron to 0.005% maximum and to retain at least 0.01% magnesium in the molten iron. The slag layer is maintained over the molten iron bath until casting so as to prevent oxidation of the magnesium and reversion of the removed sulfur. When nodular graphite iron is being formed, the titanium concentration is maintained below 0.05%, and an inoculant is added to the molten iron bath just prior to casting. By use of a low oxygen potential slag layer to retain the removed sulfur, casting of the molten iron can be delayed for up to 10 hours after addition of magnesium to the bath.

Abstract: A process for making a boron alloy from a ferrous or non-ferrous melt by adding a boron compound to the melt and reducing the compound within the melt by a reductant, such as aluminum, silicon or carbon, such that the boron can alloy with the melt. A boron alloy containing from very little boron up to 15% boron by weight can be formed. At least 40% of the boron compound is reduced to boron.The alloy can also be employed to make an amorphous material by discharging the molten alloy onto a moving surface to form a strip. The moving surface is a chill body which can quench the strip at a rate of at least from 10.sup.4 .degree. C./sec, or higher to solidify the strip and form an amorphous boron alloy material.

Abstract: A process for controlling zinc vapor in a finishing process for a hot dip zinc based coating on a ferrous base metal strip in which the strip emerges from the coating bath into an enclosed chamber, by injecting high dew point gas into the chamber. The process is applicable on both a one side and two side coating process. Preferably the atmosphere has about 1-3% water vapor, by volume, for both one-sided and two-sided process.

Abstract: An apparatus and method for remotely cutting a broken guideline extending from an underwater guide post. The apparatus includes a frame, a clamping mechanism for clamping the frame to an annular groove in the guide post, a pair of opposed, pivotable cutting jaws coupled to the frame, and a remotely actuated power device for pivoting the cutting jaws across the longitudinal axis of the broken guideline to sever the guideline from the guide post. Above the cutting jaws are a pair of pivotal loom jaws which guide the assembly on the post and also deflect any interferring portion of the broken guideline extending along the side of the post. The method includes lowering the frame, jaws and clamping mechanism through the water to a position in which the clamping mechanism is below the annular groove in the guide post, slidably coupling the clamping mechanism to the guide post, raising the clamping mechanism upwardly until it is received in the groove and then actuating the pivotable cutting jaws.

Abstract: A process for suppressing zinc vapor in the snout of a continuous line for hot dip coating one side or both sides of a ferrous base metal strip with a molten zinc or zinc based alloy by maintaining the atmosphere within the snout to include about 1-8% hydrogen by volume and about 300 ppm to 4500 ppm water vapor with the balance being one or more inert gases, such as nitrogen. The atmosphere has a hydrogen/water vapor ratio of at least 4 to 1, or higher. This atmosphere is oxidizing to zinc vapor but non-oxidizing to the ferrous strip.

Abstract: A load recall valve has a mechanical memory which coordinates the releasing of the brake with the system pressure. The mechanical memory requires that the system pressure be at least equal to the system pressure just prior to when the brake was set. Setting of the brake prior to the load being taken off the system causes the memory to be activated. Setting of the brake after the load is taken off the system causes the stored memory portion to be erased.

Abstract: A process for improving the core loss of magnetic materials of the type having a plurality of magnetic domains and which may have an insulative coating such as a mill glass, an applied coating, or both. The magnetic material is subjected to a local heat treatment employing radio frequency induction heating, radio frequency resistance heating, or electron beam resistance heating to induce artificial boundaries. Thereafter, the magnetic material is subjected to an annealing treatment.

Abstract: In well installations subjected to high internal fluid pressures, hangers for long casing strings are supported independently in the upright bore of a wellhead body or other support member without requiring that the hangers be stacked one atop another or that the bore diameter be stepped to provide an upwardly exposed shoulder for each hanger. All hangers save the lowermost hanger are supported by an annular support member engaged in a groove in the wellhead body, with no load being transferred from an upper hanger to a lower hanger.

Abstract: A process for improving the core loss of cube-on-edge grain oriented silicon steel. At some point in its routing after at least one stage of cold rolling and before the final high temperature anneal during which secondary grain growth occurs, the electrical steel is subjected to local annealing across its rolling direction creating bands of enlarged primary grains. These bands of enlarged primary grains regulate the growth of the secondary cube-on-edge grains in the intermediate unannealed areas of the electrical steel strip during the final high temperature anneal, and are themselves ultimately consumed by the secondary grains, providing a cube-on-edge grain oriented electrical steel with smaller secondary grains and reduced core loss.

Abstract: A soil tight bin-type retaining wall is formed having cementitious panels as the exposed walls including the front wall. Each end portion of the front face of each cementitious panel contacts against a flange portion of a connector positioned in the plane of the front wall to support the cementitious panel in a substantially erect position. An angle member is positioned on a web portion of a connector to retain the cementitious panel of the front wall in a substantially erect position. A plurality of stringers form the rear wall by being supported by the connectors positioned in the plane of the rear wall. A plurality of spacer members form the side walls by being supported by the web portions of a pair of connectors. In alternative embodiments, the retaining wall may be constructed so that the direction of the front or rear wall changes. Additionally, a retaining wall may be formed in which some or all of the front, rear or side walls are composed of cementitious panels.