Abstract: A flange alignment tool comprises a body portion having a first, relatively flat surface disposed for abutting engagement with a rear surface of a pipe flange and a second, curvilinear surface adjacent the first surface and shaped for complementary engagement with a curvilinear neck portion of the pipe flange adjacent the rear surface thereof. First and second spaced apart aligning pins extend through the body portion and include projecting flange-engaging pin ends positioned for alignment with an adjacent pair of through apertures in the flange. Resilient springs urge the aligning pins in a predetermined direction for encouraging positive engagement of the flange-engaging pin ends with the through apertures.

Abstract: A tool for the manufacture of a fuel assembly, said tool comprising for each end of an assembly an inner metal plate which can be applied to the bottom of an end member, an outer metal plate which can be displaced, under the action of a jack, along sliding columns fixed to the inner plate, in longitudinal translation with respect thereto and threaded ties traversing corresponding openings in the end member and in the inner and outer plates, able to engage with the internal thread of the guide tubes, and each provided with a head on which is supported a spring for compensating the action of the jack. A method for utilizing the tool is set forth, also.

Abstract: The cylinder may be an aircraft landing gear axle. The items may be pick- to sense axle deformation. A ring (30) for supporting the pick-ups is made of highly resilient material. It is initially of such a size that its cylinder-engaging surface overlaps the cylindrical surface it is to engage. The ring is then deformed by urging at least two points (34 to 37) around its circumference to increase the degree of overlap. While maintaining the deforming force on the ring, its cylinder-engaging surface (31) is machined so that there is no longer any overlap, and still maintaining the force, the ring is engaged with the cylinder. The force is then removed. The said points move resiliently away from the cylinder, but intermediate points are consequently resiliently urged into contact with the cylinder. The contact is smooth and progressive, thus avoiding the kind of stress concentrations that could reduce cylinder life by fatigue, etc.

Abstract: A process for the manufacture of half bearings with flanges rigidly connected thereto, made of a steel plate with an antifriction layer, in which the plain (i.e. not yet flanged) half bearing and a pair of flanges are produced and worked separately, and subsequently the two flanges are fixed, in the correct position, onto the half bearing by a welding operation carried out by projection or by condenser discharge. The preparation and working of the thus separate components results in being very economical owing both to the reduction of the operational costs and to a considerable reduction of the cost of the necessary equipment, and the production times are remarkably reduced. The welding step requires very short times and, by the suitable choice of the process used for the welding operation, no deterioration of the antifriction layer applied to the support steel plate occurs, nor any deformation of the plate itself, so that no further working on the finished piece is required.

Abstract: A fuel rod-loading fixture for expediting the loading of fuel rods in an empty skeleton of a fuel rod assembly is disclosed herein. The fuel rod-loading fixture generally comprises a square array of non-radioactive "dummy" rods which are all connected at their top ends to a top guide plate. When the rods of the fixture are lowered through the rod-receiving apertures of the grids in the fuel assembly skeleton, they effectively obstruct every other set of mutually aligned, rod-receiving apertures in the grids of the skeleton. The top guide plate includes a plurality of apertures which will automatically register with the remaining sets of mutually aligned apertures in the grids, in order that fuel rods may be inserted through the top guide plate and into the remaining sets of apertures in the grids.

Abstract: This invention is directed to the removal and also to the replacement of a beam end connection assembly in a walking beam. A walking beam comprises a beam hanger axle bracket and also an equalizer beam. The beam end connection assembly comprises an inner tube and a rubber bushing. The inner tube is positioned in the beam hanger axle bracket and also in the equalizer beam. The rubber bushing is between the inner tube and the equalizer beam. The rubber bushing and the inner tube are severed, preferably, simultaneously. Then, the remnants of the inner tube and the rubber bushing can be removed from the beam hanger axle bracket and the equalizer beam. Then, it is possible to install a new beam hanger connection assembly in the beam hanger axle bracket and the equalizer beam.

Abstract: A method for fabricating a steam generator and a steam generator wherein primary coolant tubes are sleeved in and in the vicinity of a tubesheet. A smooth transition region is formed between stock primary coolant tubes and sleeved portions thereof in such a manner that no sites for accelerated corrosion are formed. In addition, an adequate volume of material is provided in the transition region to withstand thermal and mechanical stresses and chemical attack. The sleeved tube is preferably thermally treated for improved corrosion resistance.

Abstract: An apparatus for automatically assembling a heat exchanger core assembly comprised of a pair of inserts and a plurality of tubes and corrugated fins arranged in an alternate manner. The assembled core elements are guided along a guide rail means while being fed by a pair of chain attachments. The core elements are then unloaded by elevatable guide rail means and removing means including compressible clamping jaws.

Abstract: An assembly machine is operable in a single continuous stroke to advance a radiator header plate having a plurality of tube receiving openings onto the ends of a plurality of radiator tubes and to forcibly peripherally expand the tube ends within the openings in the header into a press fit relationship with the header.

Abstract: A two cycle internal combustion engine may be fabricated by employing an improved method for forming a composite cylinder block. The cylinder block includes liners which are cut from sections of cylindrical pipe and which are positioned in a cylinder block either by an insertion or casting step, the cylinder block is composed of a different material. Prior to the insertion, the port openings are formed by punching.

Abstract: A machine is shown which assembles a barrel, spring, piece of lead, lead plunger, barrel tip and eraser into an automatic pencil. The steps of assembly include: Pressing the lead plunger onto the lead. Placing the plunger and lead into the spring and tapping the plunger to turn its extending tabs into the coils of the spring. Placing the plunger, lead and spring into the barrel. Extending the spring from the barrel and pressing the barrel tip onto the spring and then pressing the tip into the barrel. Pressing the eraser into the barrel.

Abstract: This is a method for repairing low alloy steel steam turbine (both high pressure and low pressure sections) or generator rotors. The defective section of the original rotor is removed and a replacement end is used, with mating attachments machined on the replacement end and the original rotor. The inner portion of the weld joining the replacement end to the original rotor is provided by a narrow gap weld, either by gas metal or by submerged arc welding. The outer 1/2-2 inches of the weld is provided by gas tungsten arc welding. The mating attachment and at least the inside 1/4 inch of the weld is bored out to remove possible crack initiation sites and to provide a smooth inspectable bore. In this manner, a fast and reliable technique is provided which provides accurate alignment, fast, essentially distortion free welding, and the superior mechanical properties of gas tungsten arc welding in the outer, more highly stressed zones.

Abstract: A method and apparatus for cutting a boiler tube-wall of a power generating station comprised of a plurality of generally parallel, vertical tubes welded together lengthwise, the method employing a guide having a pair of parallel guide rods interposed between a pair of securement devices for selectively, removably securing the guide to the tube-wall and a mount slidably mounted on the guide rods for movably supporting an actuatable tool for movement along the guide rods between the securement devices, the method comprising the steps of:(a) mounting a cutting tool to the mount;(b) removably securing the guide to a first location on one vertical surface of the tube-wall, the location being defined by a first line of cut to be made in the tube-wall;(c) actuating the cutting tool; and(d) moving the cutting tool along the guide rods between the securement devices and along the first cut line to cut through the tube-wall and any of the tubes therealong.

Abstract: A system for fixing nozzles to a power turbine stator casing, in which each nozzle sector is locked to the respective shroud by means of a key which has its two diverging vertical flanges inserted into a radial dovetail guide in the front surface of the shroud, where it is held in position by an elastic element or spring acting between the key and the inner wall of the guide, its lower vertical nose or beak acting as a shoulder abutment for a radial fork of the nozzle sector, which is mounted over, and kept centered by, the two projecting sidepieces of said key, which also has a projection at its upper end. Each shroud is locked to the stator casing by an insertion-fit between the uncinated edges of a cavity in the outer peripheral surface of the shroud and the corresponding uncinated edges of a circumferential cavity in the stator casing, the insertion being secured by a leaf spring acting between the mutually facing, uncinated edge-free walls of the two said cavities.

Abstract: Apparatus for assembling plate and tube heat exchangers of the type having tube end portions joined to end plates includes a carriage for longitudinally carrying an assembled but unjoined heat exchanger. An upright stationary frame supports a tool holder for movement transversely of the heat exchanger longitudinal axis. The tool holder is movable so that tools carried thereby are located in facing relationship to an end plate for joining tube end portions thereto. The tool holder is also transversely movable to a clearance position for providing longitudinal movement of the heat exchanger and carriage therepast. A clamping device at the opposite end portion of the heat exchanger clamps the opposite tube end portions for holding the tubes against longitudinal and rotational movement while the other tube end portions are joined to an end plate. The clamping device is also movable transversely of the heat exchanger longitudinal axis.

Abstract: The present invention relates to an apparatus for the automatic assembly of electronic components and, in particular, relates to a programmable substrate transport mechanism for conveying variously sized substrates to a robotic electronic component assembly machine.

Abstract: Two-way transmission gears in which each power branch includes an intermediate shaft, each shaft being mounted for rotation in a different (separate) gear case portion, and in which the power distribution is effected by means of an axially freely adjustable shaft provided with double helical teeth extending in opposite directions, require for the assembling and disassembling thereof and for adjustment purposes at least one gear which is positioned for displacement and adjustment relative to another gear disposed on the same shaft. In the subject matter of the invention, it is contemplated normally to do without a displaceable and adjustable gear, in that the power-distributing shaft provided with pinions having oppositely extending helical teeth is axially displaced or shifted during the assembly or disassembly. A method for assembling two-way transmission gears is disclosed, also.

Abstract: Apparatus for assembling different size parts in a vertical assembly is provided which includes a pair of fingers attached to and extending from the gripper of a manipulator in parallel relationship and moveable toward and away from one another under control of the gripper. Different diameter curved outer sections extend around the periphery of and are stepped along the length of the fingers. The smallest diameter curved section is located at the outer end of the fingers and successively wider diameter sections are located along the fingers as the inner end is approached. One of the predetermined diameter sections has a predetermined slope, each part to be assembled has an opening therein of a diameter slightly larger than a diameter of a section of the fingers along the length thereof.

Abstract: A cylinder unit of a cylinder-piston-combustion engine comprises a cylinder housing and a lining unit inserted into the cylinder housing. The lining unit consists of a cylindrical liner sleeve and a terminal wall and encloses a combustion space. The terminal wall is integral with the liner sleeve. The lining unit is manufactured by a non-cutting manufacturing method like cold impact forming, hot impact forming, deep drawing, tube reshaping, press molding or injection molding.

Abstract: Rounds are clad by weld-depositing austenitic materials on the outside and, subsequently, an axial bore is drilled, followed by extrusion or cold-pilger-rolling or both. The cladding layer and the bore diameter must follow particular rules, the ferrite content of the clad material must not exceed 50%, preferably not 10%.