Abstract: A small air-cooled internal combustion engine includes an aluminum cylinder block at least partially defining an aluminum cylinder bore, an aluminum cylinder head attached to the aluminum cylinder block, and an aluminum push rod tube separate from and press fit between the aluminum cylinder block and the aluminum cylinder head. The aluminum push rod tube includes a cylinder block end portion, a cylinder head end portion, and a main body extending between the cylinder block end portion and the cylinder head end portion.

Abstract: The present disclosure provides a plow blade edge device for mounting to a moldboard of a plow comprising at least one adapter blade including a bottom edge having selectively carbide insert(s) along at least a portion of the bottom edge. The disclosure further provides for a method of brazing the carbide insert(s) in a cavity along at least a portion of the bottom edge. The device further includes at least one wear block selectively reversible to present the adapter blade at a first angle or a second angle. The at least one wear block can include a bottom edge having a carbide insert along at least a portion of the bottom edge.

Abstract: The inductive heating device (1) for aerosol-generation comprises a device housing comprising a cavity (13) having an internal surface for receiving at least a portion of an aerosol-forming insert (2) comprising an aerosol-forming substrate and a susceptor. The device housing further comprises an induction coil (15) having a magnetic axis, the induction coil (15) being arranged such as to surround at least a portion of the cavity (13). The device (1) yet further comprises a power source (11) connected to the induction coil (15) and configured to provide a high frequency current to the induction coil (15). Therein, a wire material forming the induction coil has a cross-section comprising a main portion, the main portion having a longitudinal extension in a direction of the magnetic axis and a lateral extension perpendicular to the magnetic axis, which longitudinal extension is longer than the lateral extension of the main portion.

Abstract: A method for connecting a first element with a second element, includes coupling a third element with the second element, coupling the third element with the first element by thermal joining, wherein the first element and the second element are made of different materials essentially incapable of being thermally joined with a welding process, and wherein the third element is arranged in an opening of the second element in a form fitting and/or force fitting manner.

Abstract: Method for setting up a condensation plant, for which two tube bundles (2, 3) are placed on a roof-shaped preassembly frame (1) and connected to one another in a first area. The tube bundles (2, 3,), along with the base plates (5, 6) thereof which hold the heat-exchanger tubes, are placed in supports (10) at a roof ridge strut (11) of the preassembly frame (1) in such a way that the mutually facing longitudinal sides (12, 13) of the base plates (5, 6) can be welded together by means of a root seam, before the preassembled roof-shaped tube bundle delta (14) is lifted from the preassembly frame (1) and brought into the installed position.

Abstract: A method of connecting two components includes providing an assembly including a first component and a second component, optically sensing a connection region between the first component and the second component to produce an image, defining a substantially elliptical path in a three-dimensional space based on the image, and initiating relative movement between the assembly and welding means such that the welding means is positioned, by relative movement, along the substantially elliptical path to produce a weld between the first component and the second component.

Abstract: The present invention is directed to a high density test probe which provides a means for testing a high density and high performance integrated circuits in wafer form or as discrete chips. The test probe is formed from a dense array of elongated electrical conductors which are formed by cutting with one or more blades. The shape of the blades determines the shape of the probetips. The probetips can be coated with other conductive materials to enhance the hardness and profile of protuberances formed at the probetip ends by the blade-cutting process. The wires are as dense as the contact location array. A mold is disposed surrounding the array of outwardly projecting wires. A liquid elastomer is disposed in the mold to fill the spaces between the wires. The elastomer is cured and the mold is removed, leaving an array of wires disposed in the elastomer and in electrical contact with the space transformer.

Abstract: A method for making a spacer assembly comprises: forming a plurality of projections along an edge of a portion of sheet metal; roll forming the portion of sheet metal into a tubular configuration; positioning the roll formed portion of sheet metal and a metal base member to which the roll formed portion of sheet metal is to be welded in a discharge welding apparatus having a pair of electrodes so that the projections of the roll formed portion of sheet metal contact a surface of the metal base member; providing a force so that the projections are disposed in forcible engagement with the surface of the metal base member; and supplying an electrical current between the pair of electrodes and through the roll formed portion of sheet metal and the metal base member so that the projections reach a molten metal stage and are subsequently solidified to enable the roll formed portion of sheet metal to be welded to the metal base member.

Abstract: Avoidance of the corrosion initiation sites consisting of Mn particles deposited on the TiG welded inner tube surface is achieved through suppression of emission of manganese fumes by addition of a protective non corrosive metallic layer. The latter melts during the welding and arises in a non-corrosive internal metallic coating of the welded zone.

Abstract: A method of splicing together leading and following webs which are delivered successively. In the splicing method, when the leading and following webs are different in shape or material from each other, there is interposed between the leading and following webs a dummy web for increasing the strength of splicing of the webs. Also, when the leading and following webs are welded and spliced together, the two webs are in part overlapped on each other and the overlapped portions thereof are cut inclined with respect to the width direction of the webs. After waste materials produced from the cutting are removed, the ends of the webs are butted against each other or slightly overlapped on each other and then are welded together.

Abstract: The guide plates of a soldering apparatus for carrier strip are provided with grooves and slide bars that fit the grooves. The bars have pins fitting holes in the strip and means for precisely positioning the bars lengthwise in the grooves.

Abstract: An improved process is disclosed for splicing metal shafts, in which a pair of shafts (10, 12 or 44, 46) having transverse end surfaces (30, 32 or 54, 56) preferably substantially normal to the axes of the shafts, are positioned coaxially with an insert (34, 48) positioned between and abutted to the end surfaces. The insert is tapered or wedge-shaped at either end to define transverse contact surfaces (18) which abut the end surfaces of the shafts. The angle (.beta.) of the taper on the insert permits insertion of a consumable arc welding electrode (20) into the convergent space defined between the end surfaces of the shafts and the tapered surfaces of the insert and is large enough to allow the arc welding electrode to be positioned at locations not only sufficiently spaced from both the tapered surfaces and the end surfaces but also sufficiently close to the area of abutment between the contact and end surfaces, to ensure proper welding penetration into the base metals.

Abstract: A method of repairing a box beam is disclosed in which a cracked or broken portion of a box beam may be repaired and the strength returned to normal by forming a pair of plates that fit snugly about at least one half of the box beam, the plates being welded to the box beam and to each other, each edge of the plates being either welded to its juxtaposed plate or to the box beam to provide full strength to the structure.

Abstract: Apparatus and method for mechanically and electrically interconnecting the individual electrochemical cells for a battery. A cell-holding fixture maintains the cells in fixed relationship and includes a conductive electrode disposed adjacent each terminal to be interconnected. Projecting cell terminals are partially bent about the conductive electrodes by pivotal arms and the fixture is then moved toward the ends of the arms Zto complete the bending of the terminals so that they lie in a common plane. A conductive link is placed over the bent terminals and a pair of welding electrodes, one in contact with the conductive link and the other in electrical contact with the conductive electrode of the fixture, passes a welding current through the link and terminal to effect the weld. The fixture is passed over an adhesive strip applicator for taping together the bottom surfaces of the cells prior to their removal from the fixture.

Abstract: A method for butt welding pipe sections together wherein each pipe section has a beveled end includes positioning the pipe sections adjacent one another so that the beveled ends define a weld groove and locating filler material of elongate dimension having a triangular cross-section so that an edge portion thereof protrudes through the weld groove. The filler material is fused to the weld groove by striking an inert gas-shielded arc between a Heliarc torch electrode and the beveled ends and advancing the electrode relative to the filler material so that a weld bead is formed having a convex profile on the interior surfaces of the pipe sections adjacent the weld groove.

Abstract: Methods of heating and welding together portions of a metal part or parts in which the portions are positioned in facing, generally parallel and spaced apart relation and an induction coil overlies the part or parts and is positioned so as to induce oppositely flowing currents in the part or parts which flow in two closed paths, one each side of the portions to be heated. The portions may be stationary or be advanced during heating, and after the portions reach welding temperature, they are pressed together to form a weld therebetween.

Abstract: Process for producing a component part of a railway switch or of a railway crossing in which frogs consisting of austenitic manganese steel casting are, with interposition of an intermediate piece, connected by a welding operation with rails consisting of carbon steel, characterized in that an intermediate piece is welded to the portions of the frog or of the component part of the railway crossing which are to be connected with the rails, and in that this intermediate piece consists of austenitic steel, whereupon the frog or the component part of the railway crossing is, together with the intermediate piece, heated to a temperature, preferably to about 1050.degree. C.

Abstract: Metallic tape is butt spliced, i.e. without overlapping the tape, by measuring a fine strip of silver solder into a gap between the cut edges of the lengths of tape being spliced in such a manner that the strip of solder extends over one of the lengths and under the other. The area being spliced is pressed between carbon electrodes and the silver solder is fused by the passage of resistance current.

Abstract: Edges of first and second panel plates to be joined together are butted to each other along a seam to be formed under a backing support by a backing member extending along the seam to lie over both of the two panel plates. The backing member being wide enough to extend over both sides of the seam and having a substantially higher rigidity than the panel plates, wherein the butting edges of the two panel plates and the backing member are all welded together along the seam.

Abstract: A shaped, sacrificial anode for water tanks and a method of constructing the same from extruded sections is disclosed, particularly an anode having a greater mass adjacent to regions of the tank where improved corrosion protection is needed.