Abstract: A continuous strip (200) of electrical component assemblies (22) is disclosed, together with method of manufacturing thereof. The components are made by stamping a metal strip to form an intermediate article having a plurality of first and second members (28, 38) integrally extending therefrom and joined thereto at spaced locations therealong. Each first member (28) has at least one second member (38) associated with and adjacent to it. The second members (38) include locating means (42) for enabling at least third members (56) to be assembled to the first members (28) in a precisely located relationship. The first members (28) may also include further locating means (37) for fourth members (46) to be included in the assembly. The strip thus provides its own fixturing means for precisely locating the various members of electronic component assemblies.

Abstract: An aluminum material for brazing, comprising a core made of aluminum or an aluminum alloy, and a layer coated on the surface of the core. The layer is made of zinc or an alloy of zinc-and-aluminum and a brazing alloy having a melting point which is lower than that of the core by a predetermined value. The zinc or the alloy of zinc-and-aluminum and the brazing alloy have different melting points. Also disclosed are a method of manufacturing an aluminum material for brazing and a method of manufacturing an aluminum alloy heat exchanger by use of the Al material for brazing.

Abstract: A tag structure for labeling an article cast from molten material including a portion which submerges in the molten material and a portion which contacts the surface of the molten material, and preferably floats on the surface of the molten material. The submerged portion forms a bond with the material forming the article as the material solidifies. A bath of the molten material is provided and the tag is brought into contact with surface of the molten material in the bath, for example, it is dropped onto the surface of the molten material in the bath. The tag if dropped sinks under its own weight into the molten material forming the bond noted above. The portion of the tag which is not submerged bears information relative to the article to be formed. The completed article has, therefore, a tag firmly attached thereto which is placed on the article during formation of the article and not thereafter.

Abstract: A mould set for injection moulding of plastics material comprises two one-piece components which together define the mould cavity and which are each produced by extrusion of high duty aluminum alloy so as to comprise, also, and integrally with each of them, all the necessary fixtures and fittings for the mould set. In addition, one of the mould components is provided with integrally extruded flanges enabling an ejector plate (also extruded from high duty aluminum alloy) to be supported without the need for complex fixtures. There is thus provided a mould set which performs the same functions as a conventional set even though the latter has three times as many components.

Abstract: A photoconductive member has a support comprising aluminum as the main component and a photoconductive layer. The photoconductive layer is provided on the support and contains an amorphous material comprising silicon atoms as a matrix. The support comprises an aluminum alloy with a Fe content of 2000 ppm by weight or less.

Abstract: A metallic wall having coined knockouts. The wall includes a first surface and a second surface spaced from the first surface. A plurality of spaced knockout portions are positioned in incipient apertures in the wall and are disposed substantially between the surfaces. Each knockout portion is defined by a first indentation encompassing the knockout portion and extending from the first surface, and by a second indentation encompassing the knockout portion and extending form the second surface. These indentations are in alignment with a web of material of substantially uniform thickness throughout its length spacing the indentations. The outside surface defining the first indentation is inclined inwardly. A coating is applied to the second surface after formation of the indentations. A sharp blow to the knockout portion from the second surface fractures the web to allow removal of the knockout portion without any material of the wall extending substantially beyond the first surface.

Abstract: An optical isolator is fabricated upon a lead frame having an LED section which is rotated 180.degree. to position the LED over the photodiode. Prior to rotation both the LED and the photodiode attachment portions of the leads are down set a predetermined amount to fix the size of the isolation gap between the LED and the photodiode. Dielectric sheets are attached to the outer surfaces of the LED and photodiode leads and an optically transmissive resin is injected therebetween to form a light guide and to encapsulate the LED and photodiode dice and their associated bond wires. In an alternate embodiment a sheet is attached to the outer surface of one lead and a dielectric sheet thereagainst is positioned at a tilted angle between the LED and the photodiode.

Abstract: The present disclosure relates to an apparatus and a method for deforming sheet metal plates and more particularly aluminium and steel plates. The objectives of this disclosure are realized by laminating a plate of sheet metal in juxtaposed and parallel strips. This method allows for the formation of spherical surfaces having a variable curvature. These strips are oriented according to predetermined axes according to the expected result.

Abstract: A bi-metallic screw fastener blank for a self drilling screw of a given root diameter is disclosed. The screw blank comprises a metallic head and shank member made of a first material that is welded to a metallic slug member that is of equal diameter to the head and shank member but is made of a second material which is heat hardenable. The blank is characterized by an annular groove at the weld interface between the head and shank member and the slug member that has a diameter equal to the given root diameter of the screw.

Abstract: A lattice of metal or plastics material obtained by stretching a blank or strip which has been provided with rows of slits. The lattice has rhomboid or rhomboidal openings which are bordered by webs which extend obliquely relative to the plane of the lattice. The major diagonals of the openings include an acute angle with the edge of the lattice. The major diagonals of the openings have such an angular position that two webs which extend parallel to one another also extend parallel to the edge of the lattice. The webs located in the same row which define openings arranged one behind the other in the direction of the lattice edge are arranged so as to follow each other immediately and at least approximately in a straight line.

Abstract: Surgical needles are produced by a process which comprises the steps of:(a) coating at least one side of a metal sheet with a light sensitive photoresist;(b) exposing the photoresist with light in the image of a plurality of surgical needles, each needle having a pointed end and a suture attachment end;(c) removing the unexposed photoresist, to thereby leave in place on the metal sheet hardened photoresist in the image of a plurality of surgical needles;(d) exposing the product of step (c) to an etchant to remove metal not protected by said hardened photoresist, to thereby form a plurality of surgical needles.

Abstract: A trench duct power compartment for use over a cellular raceway is fabricated by forming a rectangular-shaped blank and then stamping out a center section to leave portions which are contoured to the shape of the crests of the cellular raceway and thereafter bending the cut-out blank to simultaneously form upright side walls, downwardly extending concrete blockers together with connecting bottom end sections while leaving the bottom midsection open. The contoured portions of the concrete blockers having the same profile as the crests of the cellular raceway and snugly engage therewith.

Abstract: A method and manufacturing blank for the production of high performance substantially symmetrical open volumed packing bodies is disclosed comprising the steps of forming a blank from sheet material, the blank comprising a plurality of generally identical plates interconnected in linear series by ribbon members coupling adjacent plates and defining a median strip, shaping the plates into troughs having longitudinal axes oriented perpendicularly to the median strip, and bending the median strip to bring the longitudinal axes into close proximity with one another to form an open volumed packing body having a central core defined by the aligned bores.

Abstract: Method and apparatus for producing a fine-grain ingot are disclosed. A feedstock stick is melted to produce a series of fully molten drops or a stream, which falls on the upper surface of an ingot being formed, to cover a portion thereof which is substantially less than the ingot's total upper surface. The mold is moved laterally with respect to the feedstock stick at a rate which is high enough so that the molten metal impinges upon different portions of the ingot's upper surface but which is low enough to prevent a substantial centrifugally outward flow of the metal impinging on the upper surface of the ingot. The molten metal melt rate is so selected that the impact region on the ingot's upper surface is at or below the solidus temperature of the alloy and above a temperature at which metallurgical bonding with the successive impinging metal can occur.

Abstract: A raw casting for a metallic article such as a hydraulically actuated ram assembly, which has a rear portion having a bifurcated end as well as front portion having a bifurcated end. The raw casting may also include a barrel portion having an internal bore. The rear portion may serve as a precursor for a rear end cap and associated clevis of the hydraulically actuated ram assembly and the front portion may serve as a precursor for the rod clevis of the hydraulically actuated ram assembly which may be screw threadedly attached to a piston rod or piston of the hydraulically actuated ram assembly.

Abstract: A method is described for continuously casting an ingot of a metal alloy of a type having a substantial liquidus-solidus temperature range to produce internal microstructure of a desired fineness. Molten alloy is flowed along an electron beam heated skulled hearth while controlling the electron beam to maintain a solids content in the alloy on the hearth of between about 15% and about 40%. The alloy is poured from the hearth into the top of a continuous casting mold at a rate which produces a thixotropic region at the upper end of the fully solidified alloy in the mold. The ingot produced is characterized by a macrostructure in excess of one millimeter average grain dimensions with a non-uniform shape, orientation, and distribution, and is characterized by a microstructure of the order of fifty micron cell spacing of dendritic crystallites comprising the microstructure.

Abstract: A method for manufacturing thread-forming screws wherein the tapered leading end of the screws can include thread portions or sections having sharp crests but wherein the thread-forming screws can be made using conventional flat thread rolling dies. Also provided is a screw blank having a tapered leading end particularly shaped or formed such that when the threads are rolled on the screw blank using conventional flat thread rolling dies, the tapered leading end of the screw will include thread sections having sharp crests.

Abstract: A blank for a sabot having premachined separating lines which are fabricated for the purpose of avoiding cost-intensive machinery by means of extrusion presses and subsequently reduction rolling. A predetermined oversize relative to the finished sabot can be strictly adapted to prevailing requirements by means of a radial gap extending between the separating lines and the peripheral surface.

Abstract: The primary blank 1, which is to be transformed into a finished rail by means of universal passes, edging passes and a finishing pass, is characterized by a symmetric `.UPSILON.` section the thickness of which always varies in the same way. It is designed to be shaped exclusively in open grooves.This primary blank 1 is roughed in a specific manner in a universal stand and undergoes a strong forging which improves the quality of the finished rail. A secondary blank is then formed which has a special shape allowing the production by universal rolling of a very accurate profile of the finished rail.

Abstract: An improved ingot shape which when rolled to sheet or plate does not form laminated edges which must be trimmed. The narrow faces of the generally rectangularly shaped ingot have recesses along the length of the upper and lower portions thereof. The land area between the two recesses on each narrow face extends outwardly beyond the top and bottom edges of the ingot.

Abstract: A method is provided for manufacturing a burr-free blank from an elongated sheet of flat metal stock comprisingpunching a first aperture in one surface of said metal stock, said first aperture extending only partially through said stock;simultaneously forming the lower burnished land portion of said blank;punching a second aperture in the opposite surface of said metal stock, coaxial with said first aperture, said second aperture extending only partially through said stock, said second aperture being smaller than said first aperture;simultaneously forming the upper burnished land portion of said blank, causing the material of said stock to fracture between said burnished land portions and recovering said burr-free blank.The resulting burr-free metal blank exhibits a shiny upper peripheral burnished land portion, a rough, fractured intermediate peripheral portion and a shiny lower peripheral burnished land portion, said lower land portion having a smaller circumference than said upper land portion.

Abstract: A hollow precious metal earring post that has a notch in the wall thereof to receive a clutch is disclosed, which post has a solid gold solder metal interior from the radiused end to a point beyond the notch to rigify and support the post along the notched area.

Abstract: Dense homogeneous metal is cast in long lengths by introducing liquid metal into the lower portion of a casting vessel in the presence of an elongated upwardly-traveling alternating electromagnetic levitation field that provides a levitation ratio of from 75% to 200% of the weight per unit length of the liquid metal, solidifying the metal while moving upwardly through the field, and removing solidified metal product from the upper portion of the field. The frequency of the alternating electromagnetic field is established at or near a value F=(36.rho./D.sup.2) where F is the frequency in kilohertz, .rho. is the resistivity of the liquid metal column in micro-ohm-centimeters and D is the diameter of the solidified metal rod product in millimeters.

Abstract: Large-area, blister-free assemblies of direct-bonded metal to a ceramic or metal substrate are obtained by providing venting channels in the metal-substrate interface. The channels may be formed in the metal or substrate surface to be bonded. The channels in the metal may be formed by etching, while the channels in the ceramic may be formed by mechanical techniques, such as grinding. The metal-to-substrate direct bond may be formed by any conventional processes employing an eutectic melt composition to bond the metal to the substrate.

Abstract: Metallized plastic such as chrome plated plastic is processed to separate metal from plastic and especially to recover reusable, essentially metal-free plastic. Metallized plastic is comminuted, as necessary, to suitably sized pieces which then are exposed to cryogenic temperature and impacted in a rotary mill to form a mixture of plastic and metal particles. Subsequently most of the metal particles are removed from the mixture by effecting particle size and magnetic separation steps. Oversized particles can be recycled for further processing. The recovered plastic is then extruded, under conditions which render it molten, through one or more screens.

Abstract: A lead frame (20) for tape automated bonding includes individual leads (12) each having a stretch loop (40) to accommodate elongation of the loop as the lead is bonded to a substrate (28) after inner lead bonds have been formed to an integrated circuit (26). Such a lead frame allows temporary connection and testing of the circuit prior to final lead formation and packaging.

Abstract: A jewellery post has an elongated member with a longitudinally extending passage adjacent one end, and a plug of bonding material within the passage adjacent this end. The bonding plug is a sliding fit in the passage and has a length which is short compared to the length of the tubular member.

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 structural member comprising a flat strip of web of material having a plurality of slots formed at spaced intervals along each edge of the strip, the inner portion of each slot being of greater dimension than the outer portion and formed to the desired degree of curvature in the plane of the strip.

Abstract: Aluminum substrate suitable for making lithographic plates which has been treated to render the surface hydrophilic and negatively charged and thereafter ionically colored with a cationic dye.

Abstract: A threaded fastener particularly designed for extruding and forming threads in a sheet metal material. A threaded shank region and threaded, generally, conical point region are interconnected by a thread forming and extruding region which includes a plurality of partially formed threads both in circumferential extent and depth of impression. The thread-forming region tapers downwardly toward the point region at an angle of about 6.degree. to maximize the thread-forming capabilities of the screw.

Abstract: A powdered metal part is provided with a side recess or notch which is shaped to receive a threaded member or screw. The part is made from powdered metal formed under high pressure by punches and a die and the part is then sintered. The threaded member is threaded into the notch in a direction which is transverse to the direction in which the punches and die are brought together to form the part. The recess or notch has generally parallel side walls extending between opposite surfaces of the part with the side walls having V-shaped ridges and grooves. The ridges are opposite the grooves to threadedly receive a machine screw or the like which is turned into the open end of the notch.

Abstract: A method of fabricating a metallic hermetic sealing cover for a container comprises plating a strip of base metal with a material comprising preponderantly a precious metal such as gold to a thickness of 40% to 90% of the ultimate required minimum surface thickness, which may be 25 to 100 microinches, preferably about 40 microinches, dividing the strip into cover elements of predetermined size, and barrel-plating such cover elements with the plating material to provide a resultant minimum thickness of surface plating substantially equal to the required minimum thickness.

Abstract: In a device for securing or sealing a twisted neck portion of a bag or sack of flexible material, a slit is provided in a housing and the latter carries a roll of adhesive tape. The twisted neck is pushed into the slit. A tape guide member, a tape cutter, an actuating arm and a spring loaded arm cooperate to effect the sealing or securing. The housing has a handle near the closed end of the slit.

Abstract: A corrugated plate is disclosed which has trapezoidal corrugations defined by alternating, side by side, relatively thick corrugation peaks and corrugation troughs and relatively thin, inclined corrugation sides which interconnect edges of adjoining peaks and troughs. A method is also disclosed for corrugating the corrugated plate from flat sheet by providing a flat sheet with spaced apart, longitudinally extending, relatively thick sections which thereafter define the corrugation peaks and corrugation troughs or for forming the thick sections by providing a relatively thin sheet and folding over portions of the thin sheet in the areas which ultimately form the corrugation peaks and corrugation troughs so that the latter are defined by a plurality of staked sheet layers.

Abstract: A low-alloy zinc material is disclosed containing a minor amount of titanium, e.g., 0.05 to 1.0 weight percent titanium. The alloy material can be formed into objects which have good cold workability, strength and resistance to corrosion. The zinc alloy materials are tarnish-resistant and can readily be embossed, hollowed, pressed, bent, or the like. They are especially useful as coining material to form coins, coin blanks, plaques, medals, and other useful and/or decorative objects.

Abstract: A method and a capsule and a blank for producing tubes, bars or similar profiled elongated dense metal objects, preferably in stainless steel qualities, by single or multi-stage extrusion of capsules which are filled with powder of metals or metal alloys or mixtures thereof or with mixtures of powder of metals and/or metal alloys with ceramic powder and sealed and which are adapted in their form to the desired object or intermediate product, as starting material a powder being used which consists at least predominantly of substantially spherical grains and the capsule filled with said powder and sealed being compressed by means of cold-isostatic pressure acting all round until the density of the powder reaches at least 80% of the theoretical density.

Abstract: A method and a capsule and a blank for producing tubes, bars or similar profiled elongated dense metal objects, preferably in stainless steel qualities, by single or multi-stage extrusion of capsules which are filled with powder of metals or metal alloys or mixtures thereof or with mixtures of powder of metals and/or metal alloys with ceramic powder and sealed and which are adapted in their form to the desired object or intermediate product, as starting material a powder being used which consists at least predominantly of substantially spherical grains and the capsule filled with said powder and sealed being compressed by means of cold-isostatic pressure acting all round until the density of the powder reaches at least 80% of the theoretical density.

Abstract: A method for making filamentary steel wire from particulate iron oxides with the aid of a fiber-forming acrylic polymer is disclosed. A precursor filament is first formed by wet-spinning an acrylic polymer spin dope in which particles of iron oxide are dispersed. The resulting precursor filament is then exposed to a reducing atmosphere (e.g., a gaseous mixture of hydrogen and carbon monoxide) at a temperature in the range of from about 900.degree. C. to 1150.degree. C. for a period of about 3 to 8 minutes. Under these conditions, the iron oxide particles are reduced to the metallic state and the polymer in the precursor is pyrolized to carbon and byproduct gases. The carbon diffuses into the resulting metallic iron, and the individual metal particles sinter to form continuous steel wire.The method has the capability of producing steel wire of an essentially ferritic/pearlitic structure with a tensile property in excess of 140,000 psi.

Abstract: A powder metallurgy compact and a sintered product is provided from high performance alloys difficult to compact and/or sinter. The green compact comprises a mixture of the alloy powder, which, as a result of blending and extruding is coated with a film of a solid organic binder, and consolidated to discrete bodies of an intermediate density. The green compacts are sintered to produce a final solid product.

Abstract: A method of making a composite article having at least a minimum selected impact strength by first obtaining the impact energy absorption/shear strength relationship for the collimated filaments and matrix material comprising the article. Impact strength is improved by the selection of the relative bond strengths between constituents and the orientation of selected matrix materials relative to the impact surface of the article.

Abstract: A strip of light-signal unit shells to be formed into single light-signal units including a flat sheet of conductive material having openings which form continuous longitudinal conductors along two opposite edges of the sheet, continuous transverse conductors extending from one longitudinal conductor to the other and a pair of discontinuous conductors extending from opposite continuous longitudinal conductors adjacent each of the continuous transverse conductors, and insulating shells each provided with a recess, each shell encapsulating a portion of one continuous transverse conductor and an adjacent pair of discontinuous conductors, the pair of discontinuous conductors extending into the recess.