Abstract: A support pin system (10) for fastening nuclear reactor guide tube flanges (14) to a nuclear reactor upper core plate (12) includes a support pin (16) having a lower portion (20) frictionally disposed within the upper core plate (12), while an upper section (24) is disposed within a through-bore (22) of the guide tube flange (14). The support pin (16) includes a threaded region (30) upon which is threadedly mounted a nut (32). In order to prevent retrograde rotation of the nut (32) relative to the support pin (16), a locking cap (46) is mounted upon the nut (32) and support pin (16) such that first crimped sections (48) are engaged within apertures (44) defined within the nut (32), while second crimped sections (54) are engaged within longitudinal grooves (50) defined upon the external surface of the support pin (16).

Abstract: A swagable collar has longitudinally extending internal ribs in its bore that when the collar is swaged over a threaded pin dam a potential leak path between the thread flanks and along the root of the thread and increase the lock between the collar and the pin. The ribs extend at least two thread pitch lengths.

Abstract: A self-locking screw-nut assembly is provided characterized in that the screw (2) has one or more median threads (4) of reduced diameter, whereas the nut (1) is designed to be deformed locally by an external action at the level of these reduced diameter threads after tightening to the desired torque, so that the displaced metal fills the gap (7) left free between the inner thread of the nut (1) and said reduced diameter threads (4) of the screw (2).

Abstract: A method of producing a composite nuclear fuel cladding lined with a liner of high purity zirconium characterized in that a raw material of zirconium sponge disposed in a hearth cavity is irradiated with an electron beam while controlling an amount of heat per unit volume (w.sec/mm.sup.3) according to an oxygen removal rate of the raw material determined by oxygen concentration of the raw material and a target oxygen concentration of an ingot for a liner to be refined, and zircaloy cladding is lined with the liner. The hearth cavity has a preferable shape in which the ratio of the cavity surface to the cavity volume is 0.20 mm.sup.-1 or larger.

Abstract: A steel rod body is fixedly fitted, at its end, with a metallic coupling member manufactured independently of the rod body. A solid section having a free end is formed either at the end of the rod body or the coupling member, while a tube section having an opening at its end is provided on the corresponding end of either the rod body or the coupling member. Circumferential and axial grooves are formed on the outer peripheral surface of the solid section. At least the free end of the solid section is inserted into the opening of the tube section, and the tube section is crimped by means of dies. Thus, part of the metal material of the tube section creeps into indentations on the solid section so that the tube section and the solid section are firmly linked together for integration. A waterproof sealant is provided either on an inner surface of the tube section or on an outer surface of the solid section.

Abstract: Method of manufacturing a hose stem for hydraulically loaded friction fittings or threaded fittings. A hose stem of this type has a stem end that a hose can fit over, a securing component that accepts the connection, and a joining pipe. The surface of the end of the stem is shaped to position the hose securely and the securing component has a groove for securing the connection. The hose stem (2) is manufactured along with its end (2), securing component (4), and joining pipe (5) by cold forming out of a continuous length (1) of pipe.

Abstract: A self-locking nut is provided having, at its periphery, a number of longitudinal channels (3) with semi-circular section intended to cooperate with drive balls carried by an appropriate tightening tool, said balls causing, at the end of tightening, the formation of a circular groove (10) by forcing back the metal situated between the channels (3), which results in radial deformation of the inner threads of the nut (1) at the level of said groove (10).

Abstract: A steering ring core is fabricated by telescopically assembling into a ring a plurality of arcuate alternating solid connecting elements and tubular steering ring elements and welding radiating spoke elements at their outer ends to the solid connecting elements. The steering ring elements are secured to the connecting elements by squeeze-forming respective portions of the steering ring elements into external indentations formed in the connecting elements.

Abstract: The ends of flexible plastic tubes, particularly of relatively thin thickness, are closed with a cylindrical header or end plug over which an end of the plastic tube is fitted. A fluids connection between the wall of the plastic tube and the cylindrical header or plug is made by press fitting over the connection area a plastic ring smaller in diameter than the outside diameter of the plastic tube within the elastic limit of the plastic ring. Preferably the header and/or end plug have circumferential grooves or depressions into which groove or depression the wall of the tube is fitted or depressed, preferably by multi-turns of plastic threads. For corrosive and oxidizing environments the header, plug, plastic tube, sealing rings and depressing thread are composed of perfluorocarbon polymers.

Abstract: A burner construction and method of making the same are provided, the burner construction comprising a cup-shaped housing member provided with a closed end and an open end interconnected together by a side wall that has burner ports therethrough for issuing fuel from the interior of the housing member, and an adapter member secured to the housing member to close the open end thereof and having an inlet for directing fuel from a source thereof into the interior of the housing member, the adapter member having a section that is press-fittingly disposed within the open end of the housing member and having an annular groove adjacent the side wall thereof and the housing member having an annular portion of the side wall deformed into the annular groove to secure the housing member to the adapter member.

Abstract: The object of the invention relates to the technical sector of microelectronics. According to the process, one starts off with a hollow stainless steel tube (1) of determined diameter; the tube (1) is shrunk for a certain length (1a) and flattened, the remaining part is flattened to form two opposite flat non close joining faces (1b) and (1c); a slot (1b1) is machined in one of the flattened faces (1b) and a hole (1c1) in the other face (1c); a blade (2) provided with an axial notch (2a) on one of its edges is inserted between the two faces (1b) and (1c); through the hole (1c1) formed in one of the faces, a powder is inserted, designed to carry out microbrazing after heating; the assembly is placed in to a furnace to insure bracing of the blade (2) with the flattened parts and simultaneously filling by microbrazing remaining cavities between the blades and the flattened parts; the ends of the flattened gripping parts are rounded off; the flattened gripping areas are ground.

Abstract: A method is shown for forming a spark plug boot having at least one internal shoulder. An outer tube is first formed of an elastomeric material having an internal bore and a selected length. An inner tube, also formed of an elastomeric material, is inserted within the bore of the outer tube. The inner tube has an external diameter selected to allow it to be slideably received within the bore of the outer tube and has a length which is less than the length of the outer tube. The inner and outer tubes thus assembled are then exposed to electromagnetic radiation for a time sufficient to bond the external diameter of the inner tube to the internal bore of the outer tube.

Abstract: Helical slow-wave structure (10) carrying three ceramic support rods (12, 14, 16) is inserted with clearance into the bore (22) of malleable barrel (20). Dies (24, 26) close around the barrel to malleably coin the barrel and close it down around the support rods to engage the support rods by interference fit to accurately support the helix (10) and provide thermal conductivity therefrom.

Abstract: A method of crimping a locking cap secured to the nut of a new split-pin assembly to the new split-pin to preclude turning of the nut and pin relative to each other. The method is practiced with apparatus including a crimping mechanism including crimping jaws having crimping pins face-to-face near one end. The jaws have external cam surfaces. The crimping pins are retracted and brought into crimping engagement with the cap to be crimped by cam followers which traverse the cam surfaces when actuated hydraulically through a C-frame connected to the cam followers. The crimping mechanism is mounted on a support which is moveable by a hydraulic cylinder between a retracted setting, where it is latched generally vertically, and an operating setting where it is positioned generally horizontally.

Abstract: Fuel and fertile rod for a nuclear reactor. It comprises a can, a column of fissile and/or fertile pellets within the can and end plugs welded to the two ends of the can. The column of pellets is held in place by two tubular spacers of limited thickness and with rounded edges abutting against the two ends of the fuel column and set with a fixed dimension to the can. The column of fissile and fertile pellets can also be held in place by a supplementary positioning setting of the fertile pellet column.

Abstract: A large number of needle patterns are integrally associated with each other on an extended U-shaped metal plate. After that, a pointed end of individual needle patterns is formed, and a series of individual needle patterns are divided into a plurality of segmented needle bodies. Then, a suture is inserted into a hollow portion of the needle body. By closing both walls of the needle body, a suture needle can be produced one after another.

Abstract: In a process of manufacturing a spacer frame for a perimeter-bonded insulating glass pane, a metal tubular bar is filled with a granular desiccant and is subsequently bent in each corner-forming portion about an axis which is at right angles to two parallel cheeks of the bar. The two cheeks are drilled through in each of said corner-forming portions to form two bores and a small quantity of the granular desiccant is removed from each of said corner-forming portions through at least one of said bores therein before said corner-forming portion is bent.

Abstract: Disclosed is a rotatably drivable tool for mechanically joining together threaded nut and bolt components of a fastener assembly to maintain together the assembly and workpieces joined thereby, the tool having a socket portion for receiving the nut of the fastener assembly, and swaging inserts spaced inwardly of the interior wall of the tool socket portion to compress a portion of the nut of the fastener assembly into mechanical engagement with the bolt of the fastener assembly upon driving of the tool.

Abstract: For use in a doctor blade holder or the like, a self-compensating support element consisting of a hollow elongated flexible tube filled, except for the end regions thereof, with an incompressible liquid. Pliable inserts are received in the tube end regions, and tubular metal sleeves are swaged onto the tube end regions and the inserts received therein. The tube end regions are thus tightly clamped between the inserts and the thus swaged sleeves to seal against the escape of liquid from the tube ends.

Abstract: A bonnet is locked to the body of a valve into which the bonnet screws by a sheet metal bonnet lock which includes a portion that will mate with facets on the bonnet or with the sides of the valve body. Another portion of the bonnet lock is then deformed to mate with the other of the bonnet facets or valve body sides. The portion of the bonnet lock that mates with the facets on the bonnet circumscribes the bonnet such that one portion of the bonnet lock is fixed to the bonnet and the other portion is fixed to the valve body following deformation of the bonnet lock to prevent the bonnet from turning relative to the valve body.

Abstract: The zirconium cladding of a coolant-displacement rod of a nuclear reactor is precollapsed in the zirconium oxide stack of pellets which supports the cladding. Current is conducted through the cladding in an atmosphere at reduced pressure containing residual oxygen, to heat the cladding to a temperature at which its yield strength is reduced. Then, while the rod remains at this temperature, it is subjected to isostatic pressure which collapses the cladding uniformly. The formation, by reason of exposure to neutron flux, of a long unsupported gap in the cladding which might be collapsed under the pressure of the coolant is precluded. In addition, the rod retains its symmetry. The outer surface of the cladding is oxidized, facilitating the movement of the rod into its thimbles of the core and improving the resistances of the cladding to reaction with the coolant.

Abstract: A small, structurally simple and operationally reliable apparatus for conveying a plurality of juxtaposed elongated objects transversely to a prescribed position, and moving them longitudinally one by one includes at least two pairs of vertically disposed plate members, those pairs being so spaced apart from each other as to support both ends of the objects thereon. The plate members in each of those pairs being placed one upon the other, and alternately vertically movable for conveying the objects transversely. Each of the plate members has a corrugated upper edge defined by a plurality of alternately occurring crests and roots. The crests on the upper edge of one of the plate members in each pair are in staggered relation to those on the other plate member by a distance which is equal to a half of the pitch between the crests. The apparatus further includes a member provided between those pairs of plate members for receiving each of the elongated objects and moving it longitudinally.

Abstract: A method for making a buckle mechanism starting with a cylindrical metal blank by forming a circumferential cut-out on the blank, fixing the blank onto a flexible cable, forming a flattened longitudinal groove on opposite sides of the blank by pressing on both sides, and inserting the thus-formed connector into a buckle base.

Abstract: In a steering column for a motor vehicle steering mechanism, a tubular first member and a second member are arranged in coaxial and partly coextensive relation. The second member fits into the first member. At least the first member is deformed transversely of the axial direction into gripping surface contact with the second member so that the two members rotate as a unit about their co-axes when the steering column is turned without any axial movement between them up to a given level of applied axial force. Above the given level the members can telescope one into the other in the event of a collision.

Abstract: An optical fiber with a bare end portion is faced-off precisely at 90 degrees. With an unsecured ferrule loosely located on the fiber, the fiber is passed through oversize openings in a fiber holder and a crimping station. The bare fiber portion is located in the interstice of three rods having identical diameters and the assembly is releasably held by jaws in a holding station. The faced-off fiber end is positioned slightly inwardly from the end faces of the rods by a limit pin. The fiber holder is tightened onto the fiber to maintain it in straightened condition and the ferrule is then slid into place over the three rods and included fiber. The crimping station is moved along a track toward the holding station until crimping jaws are positioned about the ferrule, three rods and fiber. Crimping jaws deform the ferrule at several different places firmly securing it in place on the rods.

Abstract: A coupling apparatus for connection to a cylindrical member having a radially outward extending shoulder includes a body member. A collet assembly including a plurality of collet fingers is disposed around the body member and each of the collet fingers includes a radially inward extending flange adapted to engage a lower surface of the shoulder of the cylindrical member. An actuating sleeve operably associated with the collet assembly moves the flanges of the collet fingers between a radially expanded open position and a radially contracted closed position. An annular seal is provided between the body member and the cylindrical member. An adjustable collet positioning apparatus is operably associated with the body member and the collet assembly for adjusting a longitudinal position of the flanges of the collet fingers relative to the body member.

Abstract: Apparatus for the continuous extrusion of metals in which feed is introduced into a pair of circumferential grooves in a rotating wheel to contact arcuate tooling and abutments. The feed is constrained by the abutments to flow through exit apertures in a die top from the respective grooves to a substantially toroidal chamber around a hollow, open ended, portal mandrel to extrude through an annular die orifice as a cladding for a continuous core. Cooling air may be supplied to the interior of the cladding, which is subsequently swaged down on to the core. A solid mandrel may be utilized where it is desired to extrude tube.

Abstract: A piston rod particularly for shock absorbers and spring devices has been shown in the illustrative embodiments. The piston rod comprises a tubular member which tubular member is provided with at least one extension of reduced diameter. The extension is intended for being fastened to associated structural members. In view of fluid-tightly closing the interior of the piston rods on at least one of their ends, a closure member is provided within the cavity defined by the extension of reduced diameter. The closure member is fastened to the piston rod by the reduction of the diameter of the piston rod.

Abstract: A method of forming one end of a sidepocket mandrel into a tubular shape having an internal diameter large enough to receive an orienting sleeve, moving an orienting sleeve through the formed end, securing the sleeve to the mandrel, and reforming said end for reducing the internal diameter of the end sufficiently to form a premium female thread therein. The method of making an integrally formed sidepocket mandrel having a one-piece body with a main bore and an offset bore. Both ends are formed into tubular shapes while leaving a middle section unworked whereby the middle section forms a main bore and an offset bore. The tubular ends are reduced in size and shaped to form thickened walls which are aligned at the opposite ends of the main bore. During forming, one end, such as the bottom, is formed approximately sized for receiving thread, and the other end, preferably the top, is formed with an internal diameter sized to pass an orienting sleeve.

Abstract: The disclosed method of manufacturing a multicore cable with insulation, particularly, for sensing elements of communication lines, includes assembling a blank of a cable, deforming the blank of a cable by rolling between two rolls with smooth variation of the degree of reduction over the length of the working stroke from 0 to 90 percent, each successive reduction being conducted at an angle up to 90.degree. relative to the preceding one, and annealing the blank of a cable following each deformation. There are also disclosed two embodiments of the apparatus for performing the method of making a multicore cable, of which the first one is adapted for rolling the blank of a cable from the diameter of 18.0 mm to the diameter of 3.0 mm in two passes, while the other embodiment is adapted for rolling the cable from the diameter of 3.0 mm to the diameter of 1.0 mm in one pass.

Abstract: A sucker rod assembly is disclosed for use in oil well pumping apparatus. The assembly comprises a rod with roll-formed threads on the end thereof and a rod-end fitting with a threaded socket for receiving the threaded rod. An unthreaded portion on the outer end of the socket is extruded into surface engagement with the unthreaded surface of the rod to seal and mechanically interlock the rod and fitting.

Abstract: A police restraint device utilizing the principle of the second class lever and method of making the device, the device in its disclosed form comprising a presently preferred arm clamp having two rigid elongated handles or sticks, adapted to be held and manipulated manually, with a single strong flexible cord or rope of predetermined length spanning between and integrally joining the distal ends of the handles one to the other. Each end of the cord is snugly enclosed within a crimped metal cap or sleeve which in turn is snugly inserted in a blind bore at the distal end of the associated stick and pin-secured in that position.

Abstract: A torque tube employing end members interconnected by a tubular member. The end members are provided with a male extension having radially spaced, axially extending grooves, the number of grooves, outer diameter of the end member, groove width and groove length being in prescribed proportions and ratios. The ends of the tubular member are positioned over the male end member extensions and the tube walls are conformed to the end member and grooves electromagnetically so that the tube walls are recessed into the grooves.

Abstract: A method and apparatus for securing an eraser to a pencil while deforming a heath mounted at one end on one end of the pencil and on the other end partially receiving the eraser, the sheath being subjected to deforming forces directed on the one hand toward the pencil and on the other toward the eraser. In order to provide a fastening of the sheath to the pencil and to the eraser, the pencil is guided along a path while at least the sheath is rolling, and the sheath is subjected to the deforming forces at least intermittently while rolling. The apparatus for performing the method comprises a pressure gap decreasing height between two parts that are movable relative to one another. The pressure gap is larger at the inlet and smaller toward the outlet than the outer diameter of the sheath in its underformed state.

Abstract: The method for producing a sleeve or ferrule for use in joining together the ends of strands of high tensile strength, single strand wire of any gauge from 12 to 18 gauge.

Abstract: A multistrand cable, especially one with several steel strands forming a central core and with a surrounding sheath consisting of a larger number of outer strands of aluminum or the like, is embraced by a deformable sleeve with a bore of generally polygonal cross-section radially constricted therearound to serve as an anchor or a connector. The sides of the polygon, defining flat or curved faces in contact with the sheath, are separated by longitudinal incisions whereby these faces approach one another under the constrictive stresses in order to exert a firm grip on the inner strands through the intermediary of the outer strands.

Abstract: A method and apparatus are disclosed for assembling a protective boot in an air brake actuator. A mounting tube extends into the nonpressurized air chamber of the actuator and is formed with a groove in an outer peripheral surface. The end of the boot serves as a sleeve which is slipped over the end of the tube. A retainer ring, preferably carried by the boot, is forced downwardly to compress portions of the boot into the tube groove to thereby secure the boot in place.

Abstract: Disclosed herein is a process for clinching a wire rope on a buckle base, which comprises the following consecutive steps:subjecting a starting anchor block material and the wire rope in combination to a first clinching operation to obtain a preformed anchor block bearing steps therein; andsubjecting the preformed anchor block and the buckle base in combination to a second clinching operation to clinch the resultant anchor block on the buckle base, which second clinching operation is applied in a direction different from the first clinching operation. Owing to the first and second clinching operations carried out in directions different from each other, the resulting stresses are scattered and the anchor block is thus protected from being overstressed.

Abstract: A core blank made of a material lighter than that of the piston is placed into a blind hollow of a barrel-shaped piston blank. The composite blank of the piston, thus formed, is subjected to a direct cold straight-through extrusion through a die. A piston is produced wherein the entire surface of the core is congruent with the internal surface of the piston and is in a clearanceless preloaded contact therewith.

Abstract: A vibration damper including a vibration damper mechanism composed of a piston-and-cylinder construction located within a pipe jacket wherein fitting elements such as a spring retainer and a steering knuckle support are attached on the pipe jacket by a mounting construction in accordance with the invention. The fitting elements are located on the pipe jacket at their corresponding positions and they are deformed in such a way that radially inwardly directed projections of the fitting elements are shaped in conformity with corresponding indentations of the pipe jacket in order to provide a reliable locking connection between the fitting elements and the pipe jacket in a simple and economical manner.

Abstract: A belt tensioner has an elongated support bar formed with a transversely throughgoing aperture and an annular inwardly directed lip around the aperture. A hardened metallic inner bearing race is centered on and elongated along a bearing axis and has one end extending into the aperture and formed with a circumferential radially outwardly open groove in which the lip is snugly fitted. An outer race is mounted on and coaxial with the other end of the inner race and is supported thereon by means of roller-bearing elements. The nonmalleable one end of the inner race does not need to be deformed to secure it in the support bar; instead the support bar, which is normally made of malleable steel, is deformed to make the connection.

Abstract: An optical cable with an axial tensile strength member extending from one cable end beyond the cable jacket, and a pulling attachment secured to the extension of the strength member and does not seal directly around the cable jacket. A moulded plastic encapsulation encapsulates the cable end, an end portion of the jacket and the extension of the strength member to prevent fluid leakage between the exterior and interior of the cable.

Abstract: A method of producing sheathed cables and/or transducers such as wire strain gauges, temperature probes and so on. Such cables comprise an outer tubular casing and one or more electrically conductive leads embedded in insulating material. Production begins on a flat strip which is bent by means of a female mold into a tubular shape with an approximately circular cross-section, whereby the free edges of this blank are bent back so as to form radially protruding flanges. The leads are inserted into this preformed tubular casing and the spaces are filled with insulating material in powder form. The diameter of the tube is reduced and the density of the inserted insulating material is increased by pulling on the flanges in a specially designed abutment. After the desired density is attained, the flange is cut off and the free edges are welded together.

Abstract: A solid extruded light conductive ribbon of generally rectangular cross section is provided with a tubular ferrule by the steps of placing a section of heat shrink tubing over the end of the ribbon, heating the tubing and ribbon until the shrinking of the tubing deforms the ribbon end into a generally cylindrical form and then applying a cylindrical ferrule over the end of the ribbon and crimping the ferrule in place. The heat shrink tubing thus serves to protect the conductive ribbon during the crimping operation and serves to form the ribbon end into cylindrical form as well.

Abstract: A method for manufacturing a device for the magnetic treatment of fluids including water, liquid and gaseous fuels, propane, oil and the like. An elongate inner tubular casing having a magnet therein is supported within an intermediate casing made of a ferromagnetic material, and a pair of end fittings are connected to opposite ends of the intermediate casing and serve to center the inner casing therein. The end fittings each have a tapered passage therein, and as they are threaded on the ends of the intermediate casing, the ends of the inner casing are guided into the tapered passages and are gradually deformed inwardly thereby so that the tapered passages tightly seat against the ends of the inner casing to prevent radial and axial movement of the inner casing relative to the end fittings. This results in a self adjusting support of the inner casing and avoids crimping or other deformation which may result if the end fittings are threaded too far.

Abstract: In illustrative embodiments a method has been shown for manufacturing a piston rod unit. The piston rod unit includes a metallic tube shaped piston rod member defining a cavity therein and at least one terminal member having a fastening pin fastened within a respective end portion of the cavity. The fastening pin is provided with an outer diameter which is larger than the initial inner diameter of the piston rod member. This fastening pin is pressed into an end portion of the cavity so as to radially expand the piston rod member along at least a part of the end portion to an expanded outer diameter larger than the initial outer diameter of the tubular piston rod member. Hereupon the piston rod member is radially compressed by hammering within the area of the expanded outer diameter until the initial outer diameter is substantially reestablished.

Abstract: In an anti-skid chain with an inner retaining device (1) formed by a resilient steel hoop, a tensioning strand (6) bridging end parts (4, 5) of the steel hoop is used for tensioning and is guided over the tread of the tire to the outer retaining device (3). The deflection device (13), which deflects the tensioning strand (6) out of the region of the inner retaining device (1) to the tread, is held at a distance from the end parts (4, 5) of the inner retaining device (1) by movable connecting elements, especially chain links.

Abstract: A thimble insert for placement in a thimble eye of a cable, the thimble insert including a rigid body having a groove therein for engagement with the thimble and a slot for receipt of an anchor device engaged by the thimble eye. The body can be prepared with either a cylindrical or a tear drop profile and may be fabricated as a two-piece assembly.

Abstract: A collar threads onto a shear pin. When the collar engages a surface of a workpiece, resistance to further threading increases. When sufficient resistance to threading occurs, a setting driver upsets lobes of the collar and forces these lobes radially inward toward the axis of the collar. Material of the collar inside the lobes responds to deformation of the lobes and flows radially inward against the shear pin to lock the collar, shear pin and workpiece together. The driver then rotates freely and a joint has been made with a predetermined clamp-up load and its component parts locked together.

Abstract: The invention provides a terminal clamp assembly comprising a fastener and one or more captive members and a method for making such a terminal clamp assembly. The terminal clamp assembly comprises a threaded fastener including a driver head portion, a threaded shank portion of predetermined thread crest diameter and an unthreaded shank portion of lesser diameter intermediate the threaded shank portion and the driver head portion. A captive member has a through aperture of greater diameter than the thread crest diameter and surrounding the unthreaded shank portion, and laterally oppositely outwardly extending protrusions on opposed outer edge portions. These protrusions are compressed by a planar die so as to deform the through aperture to a dimension smaller than the thread crest diameter, thereby captively assembling the captive member with the fastener, subsequent to formation and heat treatment of the fastener.