Abstract: Hose is stripped from a mandrel by urging the tapered end of an annular nozzle at least partially beneath one end of the completed hose. Air under pressure is led to an annular shaped region defined and cooperatively formed by the nozzle and the mandrel to pass beyond the tapered end of the nozzle and between the inner surface of the hose and the outer surface of the mandrel, thereby "breaking" the hose away from the mandrel and lifting the hose away from the mandrel to greatly facilitate stripping of the hose from the mandrel. The nozzle assembly is driven in a linear direction to push or "strip" the hose from the mandrel.The end of the nozzle remote from the hose is provided with a sliding seal which facilitates movement of the nozzle along the mandrel as the hose is stripped therefrom while preventing the escape of the pressurized air.

Abstract: A method of making a resilient double C-shaped clip for securing a rail on a support, wherein in advance of the heat treatment the ends adapted to cooperate with the support and with the foot of the rail are bent towards one another in the direction of the fastening force to such an extend that they are offset with respect with one another over a certain distance in relation to their position when the ready clip is free of load and wherein after the heat treatment the clip is subjected to a series of permanent deformations, each effected by imposing a permanent deformation force on one end of the clip while the other end is held in fixed position, such that upon a continued deformation there would be no increase or only a very small increase of the load, and the clip being relieved of load after each deformation.

Abstract: A process for manufacturing printed circuit boards wherein a layer of Nickel is plated atop a layer of copper in a pattern corresponding to a desired circuit configuration. The Nickel is used as an etch resist to remove copper from the board in the non-conductive areas. Subsequently, the Nickel is chemically activated such that it will accept a coating of solder particularly at the connection points and in the through-holes.

Abstract: Apparatus for the conveyance of components punched out from a strip of material with the formation of a punched grid out of the working area of a press includes a feeding mechanism for conveying the strip of material into the working area of the press. At least one controllable ejector is arranged in an upper die for ejecting the punched-out components during the return stroke of the upper die onto the strip of material itself which is the conveyor. Lugs are punched into a remaining portion of the strip of material to be processed, behind the punched-out component, these lugs serving to retain the punched-out and dropped-off components on the strip of material.

Abstract: Metallized through-holes are provided in insulating substrates by placing the substrate onto an absorbant carrier and screening a metallization paste, which contains a metal component dispersed in an organic solvent, into the holes. The carrier absorbs the solvent and a portion of the paste adheres to the carrier. When the carrier is stripped from the substrate it carries with it the center portion of the paste to leave a thin layer of paste on the inner surface of the substrate.

Abstract: In a process or method according to the invention the parts of an electrical contact device, such as a slip ring comprising the ring to receive the liquid metal and the probe or brush for contacting the liquid metal are treated by sputter etching to remove the parent metal oxide. Prior to exposure of the electrodes to any oxygen, a sacrificial metal is sputter deposited on the parts. Preferably this sacrificial metal is one that oxidizes slowly and is readily dissolved by the liquid metal. The sacrificial metal may then be removed from unwanted areas. The remainder of the ring and the probe to be wet by the liquid metal are submerged in the liquid metal or the liquid metal is flushed over these areas, preferably while they are being slightly abraded, until all the sacrificial material on these portions is wet by the liquid metal. In doing so the liquid metal dissolves the sacrificial metal and permanently wets the parent metal.

Abstract: A press for forming articles such as sphere-like objects and the like from workpieces includes a frame having two fixed mating dies mounted thereon and a crankshaft rotatably mounted on said frame, the crankshaft having crank arms actuating movable dies. A stationary shearing bushing means is disposed between the two fixed dies, and means are provided for feeding an elongated rod to the shearing bushing means. The shearing bushing means has an entry side and an exit side, and a movably mounted shearing knife means mounted on the entry side of the shearing bushing means is operable to cut blanks from the elongated rod. A feeding means is movably mounted on the exit side of the shearing bushing means and is operable to simultaneously receive a cut blank at the exit side of the shearing bushing means while delivering another cut blank to one of the fixed dies.

Abstract: A cylindrical metallic sleeve has opposite end portions and a cylindrical body portion with a longitudinal passageway for receiving the end portions of a conducting cable in overlapping relation. A shaped annular portion is formed adjacent the sleeve end portions and includes an inner, outwardly flared cylindrical surface and an outer cylindrical surface that intersect in a rounded end portion. The outer cylindrical surface is planar and positioned substantially parallel to the sleeve cylindrical body portion so that the insulation surrounding the cables adjacent the sleeve end portions is not abraded upon flexing the spliced cable. The flared inner surface is removed from contact with the overlapping cable end portions in the sleeve to permit flexing of the cable end portions therein without abrading the cables. The sleeve body is crimped into frictional engagement with the overlapped cable end portions.

Abstract: One or more projections are formed, and insulation is stripped, at interconnection areas along one or more conductors, e.g., plural conductive paths in a flat flexible cable, employing apparatus which comprises three rotary members. One or more protuberances on a first rotary member cooperate with a compliant backing surface on a second rotary member so as to form a projection in a conductor about each protuberance. Continued rotation of the first rotary member brings the insulation on each projection into contact with an abrasive surface on the third rotary member, while the protuberance on the first rotary member, about which the projection has been formed, serves as a backing surface to maintain the shape of the projection as the insulation is removed by the abrasive surface.

Abstract: A polarizing-key insertion tool for facilitating insertion of polarizing keys into backplate and card bin printed circuit board connectors is disclosed.

Abstract: Magnetite, Fe.sub.3 O.sub.4, can be transformed into articles having a high electrical conductivity by heating magnetite powder to a temperature of 900.degree. - 1300.degree. C and compacting said heated powder to form an article having a porosity below 3% by volume.

Abstract: An open-ended, B-wire type of deformable connector has a thin, perforable insulative liner secured to the inner surface of the inner one of a pair of telescopically coaxially disposed metallic sleeves in accordance with several preferred liner assembly methods. The liner is positioned so as to overlie the distal ends of an array of insulation-piercing protuberances formed in the inner sleeve, and to extend continuously in both the circumferential and longitudinal directions at least to the perimeter of the array. During assembly, while the inner sleeve is being fabricated out of strip stock in a progressive manner, each liner in the form of a section of thin, plastic film stock is positioned on and firmly secured (such as by pressure bonding) to the partially fabricated planar sleeve section along at least the solid wall border regions thereof (surrounding the array of protuberances).

Abstract: This invention relates to a tool and the method for terminating a plurality of parallel conductors such as are found in a ribbon coaxial cable. More particularly, the invention discloses a tool having a stationary platform on which a multi-contact connector is positioned and a movable member containing wire stakers which drive half of the conductors in the cable into the wire-in-slot contacts simultaneously.

Abstract: A circuit board having through hole connections between circuit elements on opposite sides of the board. Each through hole has its end portions countersunk, with peripheral portions of the circuit element depressed into the countersink area. A layer of conductive material is plated in the wall of each hole, with the conductive material overlapping the circuit element material that is depressed into the countersink.In the method of the present invention, a resist coating is applied uniformly over both planar surfaces of a circuit board on which the circuit elements have already been formed. The portions of the circuit elements contacting the edge portions of the through holes in the board are mechanically depressed into the substrate to form the countersink areas. Thereafter a coating is applied, either by an electroless process or electrolytically to form the plated through hole connection.

Abstract: A matrix connector comprises an elastomer body presenting a pair of opposite contact surfaces at each of which is disposed a multiplicity of spaced contacts, the contacts of the opposite faces being interconnected by conductors extending through the body, the contacts are defined by folds of the conductors extending through the elastomeric mass, convex portions of the folds being exposed at the opposite faces. Suitably such a connector is made forming the conductive strips on opposite faces of a flexible printed circuit, and interconnected at overlapping portions through holes in the flexible lamina. The lamina is folded in concertina form with adjacent limbs spaced by strips of partially cured elastomer. The assembly is then compressed and cured.

Abstract: A lead frame assembly of indefinite length having a pair of spaced parallel carrier strips, collapsible rungs extending between the strips at regular intervals along the length of the assembly and a number of leads extending inwardly from the opposed edges of the strip between the rungs are collapsed inwardly to seat the ends of the leads against the sides of circuit modules previously positioned between the ends of the leads. The lead ends are seated in recesses in the circuit modules and are subsequently soldered to metalized surfaces on the modules. Following the bending of the leads, the carrier strips and rungs are cut away.

Abstract: This invention relates to a phono plug and a method of making it. An insulated disc through which extends a center contact member terminated to a center conductor of a coaxial cable is positioned in the inside surface of a U-shaped outer shell member and enclosed therein by closing the shell member into a generally cylindrical housing. An open barrel integrally attached to the shell member is either simultaneously or subsequently crimped around the braided shield on the coaxial cable to complete the phono plug.

Abstract: An electrically conductive terminal having a connecting end and a mating end is affixed to a terminal assembly, the resultant subassembly placed within a housing containing a circuit board. The subassembly is located to effect electrical connection between the connecting end of the terminal and a pad on the circuit board, and to position the mating end externally to the volume to be potted. Connection between the terminal and the pad is reinforced by a solder flow technique. A potting material fills the housing encapsulating the circuit board and terminal assembly.

Abstract: A jacking apparatus comprises a rail having a plurality of pairs of vertical slots longitudinally spaced apart. A sled slides along this rail and has cross members to which are pivotably attached ends of hydraulic cylinders, the other ends of the hydraulic cylinders being pivotably attached to cross heads which also slide along the rail. The cross heads have bevelled latches, slidable vertically, and longitudinally reversible for engagement with the slots in the rail; so that repetitive, reciprocal movement of the hydrauic cylinder pistons will cause successive, incremental movements of the sled and a load selectively pushed or pulled by the sled along the rail.

Abstract: A press to form files that are made of sheet material, the press being capable of using tools that may be substituted one for another according to the desired shape of the file being made.