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| Number | Title | Issue Date |
| 7371994 | Buried arc welding of integrally backed square butt joints Buried arc welding is employed to fuse together a first component, a second component, and a third component or an underlying portion of the second component, the first and second components in butting relationship along a butting joint and the third component or un... | 05/13/2008 |
| 7172105 | Apparatus for positioning pipe and tubing A counterweight assembly is especially adapted for mounting to a spinner tool allowing a workpiece to be balanced when rotated during welding or other operations. The counterweight assembly has an adjustable counterweight to provide a necessary amount of counterbala... | 02/06/2007 |
| 7150799 | Weld nugget inoculation A weld nugget between aluminum alloy parts is inoculated with a material in order to refine the grain structure of the weld and thereby improve its mechanical strength. The inoculate may be a Ti or Na based compound in the form of a paste, powder or film, which is a... | 12/19/2006 |
| 7148443 | Consumable guide tube The invention is a consumable guide tube comprising a thin first elongated strip, a second elongated strip and a plurality of insulators. The thin first elongated strip has a front face and a back face and the front face has at least one longitudinal channel. The se... | 12/12/2006 |
| 6023043 | Method of welding in the horizontal position and welding apparatus therefor The object of this invention is to prevent the occurrence of welding defects such as undercuts, overlaps and faulty angles of fusion, and to increase the efficiency of welding in the horizontal position. Auxiliary wires 5a and 5b are inserted into molten ... | 02/08/2000 |
| 5932121 | Welding method in the overhead and vertical positions The object of this invention is to prevent a defect which occurs in overhead or vertical welding when gravity causes molten metal to drip downward so that the top of the gap has an undercut and the bead has a bulge along the weld line (i.e., a convex bead... | 08/03/1999 |
| 5579983 | Welding apparatus A welding apparatus is provided which includes a rail member 5 installed along a side and a corner portion of a steel frame post, a pinion 46 mounted to a horizontally movable shifting member 50 such that even at the corner portion of the steel frame post... | 12/03/1996 |
| 5441196 | Welding method A method of welding two plates together along a substantially vertical weld line between the two plates involves the use of a weld pool support device having internally formed channels through which flows a liquid coolant that is maintained considerably b... | 08/15/1995 |
| 5307979 | Apparatus for carrying out MIG welding on three-dimensional curved surface, and milling apparatus for automatically forming welding grooves An automatic welding apparatus and an automatic milling apparatus for machining welding grooves in order to weld a three-dimensional surface such as a ball tank or the like are disclosed. A welding wire spool is accommodated within a case and a cover to p... | 05/03/1994 |
| 4952774 | Mobil power source for producing welding current for automatic, semi-automatic and manual welding A portable electric power source for movable welding equipment used for constructing storage tanks and the like comprises a platform; an engine mounted on the platform; an AC electric generator mounted on the platform and driven by the engine; a welding m... | 08/28/1990 |
| 4850524 | Vertical strip clad welding method and apparatus Method and apparatus for vertical strip clad overlay welding. The method comprises matching the vertical travel of a special welding shoe to an appropriate amount of strip electrode melt-off necessary to maintain a preset molten pool level within a reserv... | 07/25/1989 |
| 4843210 | Downward gas-metal-arc welding process A gas-metal-arc welding process, utilizing a consumable, axially advanced, wire electrode and a four-gas shielding mixture, forms a weld bead along a vertically downwardly direction. As the bead is formed, the electrode is moved vertically downwardly in a... | 06/27/1989 |
| 4540870 | Machine for electric arc welding and air carbon arc gouging on vertical curved or straight walls A portable machine for electric arc welding and air carbon arc gouging on vertical wall surfaces is disclosed. A table-mounted carriage arm carrying a vertical positioning assembly for welding nozzles or a gouging torch is driven horizontally around a ver... | 09/10/1985 |
| 4539460 | Method of hardfacing vertical walls A method of hardfacing vertical walls comprises building up a layer of superimposed partly overlapping horizontally extending weld beads by depositing the beads in a submerged arc welding operation using relatively thin welding wires and welding powder wh... | 09/03/1985 |
| 4539464 | Joining parallel faces of thick-walled structures by arc welding The parallel faces of thick-walled structures to be joined by arc welding are provided an electrically conductive metallic support along and up into the bottom of a gap between the parallel walls for the initial pass of the arc. The metallic support is su... | 09/03/1985 |
| 4523076 | Automatic welding machine which provides uniform welding of a workpiece during vertical movement thereof An automatic welding machine for arc-welding stator core laminations is disclosed. The machine carries singular or plural workpieces which are fixtured on a vertical slideway. A slide moves past relatively stationary welding guns which are independently a... | 06/11/1985 |
| 4481402 | Multi-position plate welding using modified double-J joint A multi-position method is provided for gas metal arc welding thick aluminum alloy plates in a single welding pass on each surface of the plates. A first plate edge is provided with a tongue portion having (1) a land surface abutting a portion of a second... | 11/06/1984 |
| 4436981 | Vertical down welding process by gravity arc welding and welding machine therefor A vertical down welding process by gravity arc welding, in which a guide rail 5a is disposed aslant upwardly at an inclination angle θ1 of 40° to 60° to a vertical weld line 3 and, while a holder 6 of a welding rod 4 is brought down along th... | 03/13/1984 |
| 4420676 | Welding apparatus An apparatus for safeguarding a welding pool in mechanized welding in a constrained position, for example a vertical position, comprises sliding blocks pressed against the surfaces of the work pieces to be welded and supplying the welding current and the ... | 12/13/1983 |
| 4420672 | Method and apparatus to produce electroslag T-joints where fillets are required A method and apparatus for producing electroslag T-joints where fillets are required is provided by utilizing a water-cooled copper shoe with a slag relief notch placed along the weld joints to provide a dam for the fillet material; the location of the sl... | 12/13/1983 |
| 4348574 | Flux dam for submerged arc welding A dam, or barrier, structure is moved along the edge, or corner, of a workpiece to control the flow limits of molten material of arc welding. The dam structure provides a dimentionally stable groove at the edge of the workpiece surface into which is recei... | 09/07/1982 |
| 4292496 | Vertical plate welding using double bevel joint A method is provided of vertical gas metal-arc two-sided welding of thick plate in a single welding pass on each surface of the plate. The method includes providing a first weld groove on one surface of the plate into which a weld bead is deposited in a s... | 09/29/1981 |
| 4247750 | Vertically positioned submerged arc flux dam Relates to a flux dam for submerged arc vertical position welding. The dam comprises a sheet of high temperature stable non-metallic material, a permanent magnet aligned with a first pole thereof substantially at a first surface of the sheet for magnetica... | 01/27/1981 |
| 4200782 | Method and device for regulating parameters of thermal cycles in electroslag welding A method for regulating the parameters of thermal cycles in electroslag welding in which the entire area of the zone affected by heating is cooled. The area is limited by isotherms of maximum heating temperatures within an interval from temperatures close... | 04/29/1980 |
| 4149060 | Angled strip cladding system A method and apparatus for strip cladding into a corner while magnetically agitating the weld deposit. The clad strip is angled away from the corner in the plane of the electrode strip, and means are provided for using the corner-forming obstruction as a ... | 04/10/1979 |
| 4142085 | Method for tube welding A method for butt welding a pair of vertically disposed tubular members having a wall thickness of more than 12 mm in end-to-end relationship by multi-pass shielded arc welding with a consumable electrode, comprising the steps of preparing the opposed edg... | 02/27/1979 |
| 4131783 | Welding apparatus Welding apparatus in which a self-propelled wheeled carriage releasably supports a welding gun or torch of the hand-held type having a welding tip and control for controlling feed of a welding wire to the welding tip, wherein the carriage is guided along ... | 12/26/1978 |
| 4125758 | Vertical welding method The present invention relates to a method of vertically upward arc welding for vertical and inclined joints. More particularly, the invention relates to a vertically upward arc welding method which includes the step of feeding a strip electrode in a direc... | 11/14/1978 |
| 4038514 | Vertical welding of thick aluminum members An apparatus for and method of welding aluminum members substantially vertically is provided wherein a groove-defining surface is formed on each of the members and such members are positioned adjacent each other with the groove-defining surfaces cooperati... | 07/26/1977 |
| 4037078 | Process for welding aluminum and aluminum alloys in horizontal welding position Aluminum and aluminum alloys are welded in a horizontal welding position in which the base metals to be welded are vertically disposed in abutting relationship with the welding groove opened sidewise by oscillating the tip of the welding electrode in the ... | 07/19/1977 |
| 4035605 | Narrow groove welding method, and welding apparatus for practicing the method The front and rear surfaces of plates to be butt-welded are slidably held by front and rear backing shoes, respectively, for defining a welding space in a narrow groove formed by the edges of the plates, and the edges are melted by a plasma arc generating... | 07/12/1977 |
| 4029933 | Method of vertical welding of aluminum and aluminum alloys A method of vertical welding of aluminum and aluminum alloys comprising welding Al or an Al alloy while oscillating in a welding groove an electrode in a closed pattern corresponding substantially to the groove shape, wherein the welding is conducted by u... | 06/14/1977 |
| 4021637 | Flux-cored wires for electrogas welding In flux-cored wire electrodes for vertical automatic welding, from bottom to top, there is an electric arc under gaseous protection, the wires having diameters of 1 to 4 mm and generally shaped internally in any configuration, such as tubular, heart-shape... | 05/03/1977 |
| 4017709 | Arc welding machine An arc welding machine having a strap sliding to advance with advance of the welding position, wherein an electric conductor is disposed on the strap at a position not facing a welding groove with the electric conductor being insulated from the strap, and... | 04/12/1977 |
| 3975615 | Vertical position welding method and apparatus for practicing the method In a vertical position welding method and an apparatus for practicing the method, front and rear water-cooling type backing shoes are slidably positioned on the front and rear surfaces of metal plates to be butt-welded, respectively, so as to form a weldi... | 08/17/1976 |
| 3975614 | Electroslag welding speed control An improved vertical electroslag welding system wherein the driving motor which propels the molding shoes is controlled by varying its speed in response to electrode current thereby assuring a molten puddle which for any set speed will not rise over the c... | 08/17/1976 |
| 3973711 | Magnetic crawler vehicle for soldering apparatus A magnetic seam tracking device designed to orientate the feed or forward motion of a soldering tool along the edges of metal sheets disposed head against head and to be submitted to the soldering operaion. The device comprises a carriage or truck B capab... | 08/10/1976 |
| 3958098 | Apparatus for automatic and vertical fillet welding The invention relates to an apparatus for automatic fillet welding. The apparatus has a runnable motor-driven carriage which carries a multi-stage telescopic unit which mounts a lateral slide unit mounting in turn a longitudinal slide. A welding head havi... | 05/18/1976 |
| 3939324 | Apparatus for welding a joint between two closely spaced vertical members A consumable electrode guide tube is connected to a holder disposed at the top of a long vertical joint to be welded. Power is short circuited from the holder to a point midway along the tube until the lower half of the joint is welded, after which time t... | 02/17/1976 |
