Abstract: A disc separator includes discs welded to a hub. Each disc has an extruded collar disposed around a central aperture through which the hub extends. The collar provides bending rigidity to the disc and is interposed between the disc and hub to insulate the disc from thermal stresses caused by welding. The hub has an open seam and an initial diameter less than the diameter of the central aperture of the discs. The discs are assembled on the hub by sliding each of them to a predetermined position on the hub, expanding the hub, welding the collar to the hub, and relaxing the hub. The steps are repeated until a plurality of discs are securely welded to the hub to form a disc assembly.

Abstract: An improved method of making an airfoil includes stacking plies in two groups. A separator ply is positioned between the two groups of plies. The groups of plies and the separator ply are interconnected to form an airfoil blank. The airfoil blank is shaped, by forging or other methods, to have a desired configuration. The material of the separator ply is then dissolved or otherwise removed from between the two sections of the airfoil blank to provide access to the interior of the airfoil blank. Material is removed from inner sides of the two separated sections to form core receiving cavities. After cores have been placed in the cavities, the two sections of the airfoil blank are interconnected and the shaping of the airfoil is completed. The cores are subsequently removed from the completed airfoil.

Abstract: The disclosed method involves making a brake shoe from symmetrical halves by placing a formed lining segment in position on laterally spaced brake shoe half sections with forces applied thereto to engage serrations in the shoe web half sections, forcing the shoe half sections together to form a full shoe while concurrently moving the serrations across the lining segment to form mating serrations on the lining segment and thereby provide serrated mating engagement of the serrated shoe rim with the lining segment. Lining segment retaining means formed on the shoe web half sections engage and hold the lining segment on the assembled shoe, the shoe rim half sections being secured together by fastening means which may be rivets or spot welds, by way of example.

Abstract: An improved method of producing a scroll type compressor having an orbital scroll member and a stationary scroll member. The orbital scroll member is fabricated by a process comprising the steps of: forming an end plate and a spiral wrap separately, the end plate being composed of an upper half part having a discontinuous joining portion for joining the spiral wrap and a lower half part having an oil passage. The upper half part and the lower half part of the end plate are fixed to each other through mutual engagement between locating projections formed by a plastic work on one of the half parts and mating holes formed in the other of the half parts.

Abstract: A multicurvature reinforcing body comprising a pair of abutting bowl shaped members is fitted within a tubular chord member in the area of a complex joint. Cylindrical surfaces of contact of the multicurvature reinforcing body are positioned so that the longitudinal axis of an intersecting bracing member attached to the chord member passes through both of the surfaces of contact. The use of a multicurvature rinforcing body constitutes an improvement over the commonly used stiffening rings in that direct translation of tensional and compression forces acting along a bracing member which intersects at an angle other than perpendicular to the chord member to a large surface of contact within the chord member is effected.

Abstract: A generally uniform diameter elongated barrel unit secured to the top of a well casing which provides a seat for a spool unit having spaced plates defining a flow directing central space to a lateral distributing pipe. The plates have peripheral sealing means engaging sealing rings of stainless steel material on the inside of the barrel unit. The apparatus may be arranged for use with either a turbine drive type pump having a ground level motor or a submersible pump. The spool unit is inserted into and may be withdrawn from the barrel unit by axial movement. A heavy flange is welded to the top of the barrel unit to provide a heavy duty work platform and motor mount or support for a cover.

Abstract: A welding fixture for use in welding sleeves to a grid includes a plate having a pair of spaced pins with bushings for both locating the grid and positioning a sleeve, and abutment members; and a plurality of sleeve locating positioning pegs. A method of positioning a grid and sleeves for welding sleeves to the grid.

Abstract: A carrier matrix for use in the manufacture of a catalytic reactor for the purification of exhaust gases in an internal combustion engine of a motor vehicle is prepared by joining in wound form a corrugated steel sheet and a generally flat steel sheet, the sheets being joined in locations where they contact one another by the use of solder or brazing material. In one embodiment solder is applied in spots along the tops of the arches of the corrugated sheet, and after coiling the solder is activated by heating. In another embodiment, coiling is first carried out and then soldering is accomplished by the application of solder into one or both end faces of the coil.

Abstract: A bipolar diaphragm or membrane electrolyzer comprising a housing containing an end anode element, an end cathode element and a plurality of bipolar elements with their major dimensions lying in a substantially vertical plane and comprised of a bipolar wall separating the anode compartment and the cathode compartment and vertical foraminous electrodes parallel positioned a certain distance from the bipolar wall, diaphragms or membranes separating the anodes and cathodes, a series of baffles distributed along the entire width of the electrode compartment and extending from the bipolar wall to the foraminous electrode to form a series of vertical flow channels extending over a large portion of the height of the wall, the said baffles being alternately inclined one way and the other way with respect to the vertical plane normal to the bipolar wall plane and spaced from one another whereby the ratio of the electrode surface intercepted by the edges of two baffles laterally defining a vertical flow channel to the

Abstract: A method and associated device for forming reinforced panels including providing a first panel of insulation having two major surfaces, piercing the insulation panel with rod like members so that portions of the rod members extend out from both major surfaces, superimposing on each major surface a grid formed from a plurality of longitudinally and latitudinally extending bar members which are formed by attaching the bar like members at intersections thereof and orienting the grid and additionally the rod like members so that some of the rod like members contact different bar like members which are thereafter welded to form a reinforced panel.

Abstract: A barrier vent assembly formed of a plurality of V-shaped baffles secured between two spaced frame members. The V-shaped baffles are nestled one within the other to prevent straight line access through the vent openings. The baffles have mounting tabs at their opposite ends which are received within mating slots contained in the frame members. Because of this arrangement, all of the tabs may be welded to the frame member by a single continuous weld bead.

Abstract: A reverse buckling rupture disk apparatus, adapted to be clamped between inlet and outlet companion bolted flanges, the operation of which is unaffected by the torque applied to the bolts of the companion flanges. The apparatus is comprised of a reverse buckling rupture disk which is welded at its periphery to an annular support ring. The annular support ring is in turn welded to an annular support member. Methods of manufacturing the apparatus are also provided.

Abstract: An improved method of making an airfoil includes stacking plies in two groups. A separator ply is positioned between the two groups of plies. The groups of plies and the separator ply are interconnected to form an airfoil blank. The airfoil blank is shaped, by forging or other methods, to have a desired configuration. The material of the separator ply is then dissolved or otherwise removed from between the two sections of the airfoil blank to provide access to the interior of the airfoil blank. Material is removed from inner sides of the two separated sections to form core receiving cavities. After cores have been placed in the cavities, the two sections of the airfoil blank are interconnected and the shaping of the airfoil is completed. The cores are subsequently removed from the completed airfoil.

Abstract: Flexible welded metal bellows comprising a plurality of diaphragms comprising flexible metal annuli free plates or rings having similar inner and outer diameters, alternate pairs of said plates having their outer and inner peripheries, respectively, welded to each other to form a fluid-tight connection therebetween. The invention comprises interposing and welding a metal annuli spacer plate or ring between at least one adjacent pair of said flexible free plates to space the free plates from each other and to prevent or reduce the pressure contact between the adjacent welds when the bellows is retracted.

Abstract: An improved hot tip nozzle seal for use in a sprue gated injection molding system and a method of manufacture. The nozzle seal has a cylindrical outer portion, an elongated central pin portion and a number of ribs extending therebetween to define a number of apertures through the nozzle seal. The outer portion is seated in both the heated nozzle and the cavity plate to bridge the insulative air gap between them. The central pin portion of the seal has a tip portion which extends downstream into the gate and a head portion which extends upstream into the nozzle bore. The central pin portion has an inner conductive portion formed of copper and an outer protective casing formed of steel.

Abstract: Method of manufacturing a blade wheel including setting a plurality of blades into a first jig, positioning an annular core member thereover with mating projections on the blades with slits on the core member, welding at the mating points, setting the sub-assembly thus produced onto a shell member held in another jig with claw members of the blades engaging peripherally located slots in the shell member, and securing the two together with an annular retainer member with grooves engaging other claw members on the blades being spot welded to the shell member.

Abstract: A method of producing similar deep-drawn parts for double-walled structural parts having uniformly spaced walls and edge welding. During every deep-drawing procedure, a respective planar outer plate, which is placed upon the lower part of the tool, as is a filler plate, as well as a preformed or preshaped inner plate, which is placed over the tool punch, are shaped in common, whereby the preformed inner plate and the outer plate receive their final form or shape, and the filler plate is deformed into a preshaped inner plate for a subsequent deep-drawing procedure. The tool for carrying out this method is characterized in that the smallest spacing between the tool punch and the lower part of the tool corresponds to the entire thickness of the two inner plates and one outer plate.

Abstract: A connecting rod for a radial piston motor including a spherical surface portion, a rod portion and a pad portion having a sliding surface. The spherical surface portion, rod portion and pad portion are formed integrally, and the sliding surface has a bearing alloy attached to its surface by centrifugal casting. An overlay may be provided on the bearing alloy. The connecting rod is produced in a mass production basis by a method including the steps of integrally forming the spherical surface portion, rod portion and pad portion into a blank, assembling a plurality of such blanks in ring form and welding them together at joints into a single blank, machining the sliding surface of the pad portion of the blank, attaching a bearing alloy by centrifugal casting to the sliding surface of the pad portion, machining the surface of the bearing alloy, and dividing the blank at the joints into a plurality of pieces constituting a plurality of connecting rods.

Abstract: A manual, impact-type log splitter comprises a tubular housing having a ram slidably mounted in the lower end thereof, with a wedge or the like for splitting wood attached to the lower end of the ram. A rod-shaped weight is closely received and anchored in the upper end of the housing, and extends outwardly therefrom a predetermined distance of sufficient length to be firmly grasped by two hands. The lower end of the weight forms an impact surface against which the upper end of the ram abuts during operation, and the upper end of the weight forms a shouldered handle. Preferably, a resiliently compressible boot or sleeve is provided over the upper end of the weight and at least a portion of the upper end of the housing to provide a handle cover for secure, comfortable grasping and more efficient operation of the log splitter.

Abstract: End fitting assembly for a spiral wire wound well screen includes a fitting portion which is internally threaded at one end to threadedly engage with a plurality of external wire wraps of the well screen which are wound around a plurality of longitudinal support rods at a greater pitch than the main body of the screen. Preferably, the longitudinal support rods are welded at their tips to the interior surface of the fitting. The assembly technique greatly increases the tensile strength of the joint between the screen and fitting and can be equal to a combination of the individual strengths of a conventional welded fitting and a threaded fitting. Where utmost joint strength is not necessary and welding would not be desirable for reasons such as corrosion prevention, the wire wrap threads can provide all of the joint strength.

Abstract: A load carrying structure (10) is, for example, the stick (12) of an excavator or another work element having at least three load input locations (70,72,74). In operating the excavator, for example, failure of the stick can occur owing to side, torsional, bending and columnar loading through bucket (16), boom (14), and control element connections (18,20,76) at associated load input locations. A method for making the structure (10) includes connecting top and bottom plates (22,24) and side plates (30,32) which extend outwardly to define respective load input locations (70,74). Other load input locations (72,74,144) are on a box structure (82) formed with the side and top and bottom plates (30,32; 22,24). The structure (10) has a more uniform construction, particularly without weld discontinuities, and resists input forces more effectively owing to the relationship of the load input locations to substantially overcome failures associated with such structures.

Abstract: A joint for interconnecting a main pipe and an auxiliary pipe of a framework structure. The joint is adapted to envelope the main pipe and to be fixed thereto and is provided with an expanded portion. The auxiliary pipe is adapted to be fixed to the expanded portion of the joint so that the main pipe and the auxiliary pipe are connected to each other through the joint.

Abstract: A method of making a two part aerofoil gas turbine engine blade consisting of casting each individual part separately, the parts being cast by the lost wax process, and subsequently joining the parts together after machining.

Abstract: A method of assembling sections of an earth boring bit for welding has features to assure precise bit geometry. The method includes a step of providing a hole in each bit section at the centerline of the 120 degree faces on the interiors of the sections. A triad is constructed for use in assembly and consists of three pins joined together on one end, each having an axis 120 degrees apart from the other axes of the pins. The triad is positioned in the holes in the 120 degree faces when the three sections of the bit are brought together. The shank ends of the sections have holes for receiving dowels located in the welding fixture. Once the sections are positioned and pinned against movement at the shank ends and at the triad, the sections are clamped, then welded.

Abstract: A clevis end connecting rod such as truck lever connection rods, brake cylinder push rods, brake rod ends, etc., utilized on railroad cars, is manufactured by positioning an outside side surface of a metal eye member, having a bore therethrough, transversely against one end of a metal rod, and then the metal rod end is circumferentially welded to the eye member side surface with a good concentric and coaxial uniform weld. Thereafter, the eye member is transversely cut in half, thereby providing a cutting gap which is in line with the axis of the rod. Then this same end of the rod is axially cut to a predetermined depth to provide a bifurcated rod end. The bifurcation is aligned with the cutting gap between the eye member halves, and then the bifurcated rod end is spread and re-shaped to form a clevis end with the bores of the eye member halves being positioned in spaced alignment to receive a clevis pin, thereby eliminating expensive prior art hot forging techniques.

Abstract: Method of producing a core baffle with a plurality of horizontally disposed, parallel profile-rib rings for enclosing the fuel assemblies of a pressurized-water reactor, the profile-rib rings being formed with respective cutouts having a polygonal contour corresponding to that of the reactor core and with baffle plates secured vertically to the profile-rib rings and forming a casing matching the contours of the cutouts, which includes fastening to the profile-rib rings, by welding, one end of a plurality of ribs having a height corresponding to a mutual spacing of the profile-rib rings; successively welding the profile-rib rings to one another by the respective ribs thereof into a cage; assembling baffle plates bent partly into profile sections into the form of casing by bracing the plates against the cage; successively welding the baffle plates to the profile-rib rings of the cage; and welding the baffle plates to one another into a tight casing.

Abstract: A carrier matrix for use in the manufacture of a catalytic reactor for the purification of exhaust gases in an internal combustion engine of a motor vehicle is prepared by joining in wound form a corrugated steel sheet and a generally flat steel sheet, the sheets being joined in locations where they contact one another by the use of solder or brazing material. In one embodiment solder is applied in spots along the tops of the arches of the corrugated sheet, and after coiling the solder is activated by heating. In another embodiment, coiling is first carried out and then soldering is accomplished by the application of solder into one or both end faces of the coil.

Abstract: For producing the seat or valve member of a labyrinth valve a number of rings of different diameter are placed one inside the other as a workpiece with their blade-like edges turned in the same direction. The group of rings is then slipped over the middle guide or stem of a jig so that the downwardly turned blade-like edges on the rings come to rest against upwardly directed ring-like blades on the jig. These blades are designed with a form answering to the form of the other valve part with which the workpiece is to be used. The rings in the workpiece are pressed down against the blades for leveling them and are then welded together, for example by electron beam welding.

Abstract: An improved monocoque parabolic solar collector which can be machine welded or fastened with rivets, bolts or other mechanical fasteners without the need for any blind fastening systems.

Abstract: A post member and a rail member are joined together by a short hollow fitting. The fitting has a head shaped to mate with one of said members. A fitting is welded to each of the members.

Abstract: An extended width parabolic trough solar collector (12) is supported from pylons (14). Collector (12) is formed from a center module (30) and two wing modules (32) joined together along abutting edges by connecting means. A stressed skin monocoque construction is used for each of the modules.

Abstract: A method of forming a laminated wall for a feeder for supplying molten streams of glass to be attenuated into filaments comprising: providing a refractory metal core; providing oxygen impervious, precious metal sheathing material around said core, said sheathing material and said core having a plurality of apertures extending therethrough; inserting oxygen impervious, precious metal elements into said apertures to form a loose assembly; and hot isostatically pressing said assembly to form said laminated wall having an oxygen impervious, precious metal sheath and inserts intimately bonded thereto.

Abstract: An automotive type internal combustion engine exhaust muffler has a welded butt joint consisting of the ends of a pipe bushing, a lockseam louver tube, and a partition neck into which the tube is pressed, the welded joint preferably being of a structure produced by the magnet arc process.

Abstract: A welded structural frame for a railway car wall is disclosed as including a pair of aligned U-section vertical members welded to opposite sides of a U-section longitudinal member and a reinforcing insert welded between the sides of the longitudinal member in alignment with the vertical members to provide a frame substantially free of welding distortion. A method of making such a frame is also disclosed as including securing longitudinal and vertical members in a fixture, welding the vertical members to opposite sides of the longitudinal member and then welding a reinforcing insert between the sides of the longitudinal member in alignment with the vertical members.

Abstract: A wall construction for swimming pools, and method of making same, wherein the pool wall, the recirculating system, gutter and conduit, the bottom wall seal, and the deck coping are all formed from four standardized sheet metal members. The capacity of the gutter and recirculating system can be selectively established, when the components are welded together without varying the dimensions of two main components. Also, the water line to pool deck distance can be selectively established during fabrication without dimensional variation of the two main components.

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.

Abstract: A multiplicity of step-shaped sleepers or ties each having two straight end segments interconnected by a middle portion inclined at obtuse angles with respect to the end segments are each joined at their respective end segments to two adjacent sleepers by means of rib plates to form a zig-zag sleeper network underlying a pair of parallel spaced-apart rails in a railway roadbed assembly. The sleepers are formed from I-beam profiles; a plurality of channel profiles extending parallel to the rails below the sleeper network are connected to the rib plates by bolts traversing the sleepers, the channels being embedded in the ground or in a concrete track bed to prevent lateral displacement of the railway assembly. A method of forming Y-shaped ties includes the bending of I-beam profiles in a press die assembly, welding the profiles together and filling interbeam spaces with a weight-increasing corrosion-retarding material such as concrete.

Abstract: Process for manufacturing cam shaft characterized in that axial grooves are cut on a cam shaft, while projections with a profile matching the axial grooves and slightly larger than the axial grooves are provided on the fitting surface of pieces to be assembled to the cam shaft, whereby said projections of the pieces are fitted into the grooves of said cam shaft.

Abstract: Plates, of steel or other suitable material and which are appropriately sized, are welded together to form a fabricated swing jaw body for a jaw type crusher. The barrel, disposed proximate the upper extremity of the swing jaw body and which houses the bearings and shaft that operate the swing jaw, is formed either: from a continuous plate rolled into a cylinder of proper size and welded into the swing jaw body; from a number of plates welded to each other and to the swing jaw body to form therewith a cylinder like enclosure for said bearings and shaft; or from a number of plates with openings formed therethrough and stacked and welded one against the other and to said swing jaw body to form said enclosure. A piece of non-rectangular bar stock is secured proximate the bottom of the swing jaw body and has formed therein a seat for the toggle plate mechanism of the crusher jaw.

Abstract: Metal/ceramic abradable seals of the type used in jet aircraft are improved by using a substrate which is able to deform during cooling from the brazing temperature and then rendering the substrate rigid after the cool down.

Abstract: A method of installing a sleeve within an vortex finder of a cyclone separator to adjust the diameter of the vortex setting. To facilitate installation of the sleeve, the dish-shaped bottom of the cyclone is mounted on a plate which can be lowered and then pivoted aside. The sleeve is provided with a collar which is stitch welded to the bottom of the vortex finder to retain the sleeve in place. Alternatively, the collar and vortex finder are provided with a bayonet joint to releasably retain the sleeve. A kit of sleeve assemblies of different diameters is provided to accomodate the adjustment of the vortex setting.

Abstract: An axle housing assembly including a cup-shaped center housing having flattened portions which are diametrically opposed from each other. Tubular housing members, each having an end face which is circular in cross section, are connected to the flattened portions of the cup-shaped center housing by a friction weld. The tubular housing members include a connecting portion extending axially from the end face, a first frustroconical portion interconnecting an intermediate portion to the connecting portion and a second frustroconical portion extends axially from the intermediate portion. The cross-sectional area of the connecting portion is thicker than the first frustroconical portion which gradually decreases in thickness toward the intermediate portion. The cup-shaped center housing defines a cavity having an opening thereto and includes a flange portion extending inwardly about the periphery of the opening and a cover plate is mounted on the inwardly extending flange portion.

Abstract: A method for making a rotor for a caliper brake with a disc mounted on a cylindrical adaptor. The disc includes a coiled metal strip having a rectangular cross section with edge surfaces aligned to provide friction faces for engagement by friction lining carriers of the brake while decreasing the vibration and noise during braking. The ends of the coiled strip are welded to the disc and the overlapping surfaces of the coils are brazed together.

Abstract: A modular truck body comprises unitary first and second modules having bottom sections thereof secured together at a separation line which is substantially offset laterally from a longitudinal axis of the truck body. The width of the first module is thus substantially larger than the width of the second module. The modules are aligned and preassembled at a manufacturing plant by releasably securing them together at the separation line therebetween. The modules are then disassembled and shipped to a remote job site or the like for final reassembly and securance of the modules together.

Abstract: A rotary rock bit is formed from at least two individual segments. The individual segments are positioned together and aligned in the proper position for the final assembled bit. The seams between the individual segments are in the form of square-butt type joints and the adjoining segments have surface areas that are in abutting relationship to each other. A beam of energy such as an electron beam or a laser beam is directed into the seams. Relative movement between the beam and segments of the bit causes the beam to traverse the seams and join said individual segments together throughout substantially all of said abutting surface areas.

Abstract: A tube settler improves separation performance by dividing flow path of a fluid to be treated into a multiplicity of tubular passages to achieve fluid stream commutation and to reduce the distance which a suspended particle has to fall increasing a settling area. A critical upward-flow rate for avoiding obstructions to precipitation of the suspended particle without turbulence depends on the cross-sectional configuration of the tubular passage. A tubular passage of triangular, circular, hexagonal or rhombic configuration is disadvantageous because the height or distance from top to bottom differs from part to part across the vertical section of the passage.This invention provides a tube settler or multitube separator having a tube-nest assembly for passing the fluid to be treated therethrough. And, inclined tubular passages of the tube settler are an approximate boomerang cross-section.

Abstract: A funnel includes an upper portion which comprises at least two separate parts separably connected to each other so as to define a first interior and lower portion defining a second interior. The first and lower portions are sealingly and separably connected to each other so that the first and second interiors thereof define together the interior of the funnel.

Abstract: A method of forming a vehicle axle assembly including the steps of coaxially welding a spider having a through opening to a tubular spacer to define a subassembly having a through bore, removing material formed by the welding operation from within the bore, installing the subassembly on an axle beam, and concurrently welding an end of the axle beam and spacer to a spindle.

Abstract: A wheel brake assembly in which the webs of brake shoes are held in a planar alignment between and supported by a pair of parallel-spaced interconnected supporting plates, in turn supported by an axle or spindle. A pair of brake contracting springs interconnect the brake shoes, and these springs are positioned with one spring being against the outer surface of each plate. An inner edge of each of the plates is circular and independently adapted to attach to an axle housing, whereby the brake assembly may be readily welded to an axle housing.

Abstract: A hollow rectangular boom formed with four corner sections of identical cross section and plates interconnecting the corner sections is disclosed herein. Each of the corner sections is identical and is generally L-shaped in cross section with first and second legs each having a recess with adjacent pairs of corner sections being interconnected by flat plates received into the respective recesses and welded therein. The invention also resides in the method of assembling the various parts to form the hollow boom sections.