|
Match
|
Document |
Document Title |
|
|
3922517 |
Welding method and apparatus
A welding method for forming girth joints between ends of pipe from the outside in pipelines or in analogous work members by a combination of welding variables including forming a special joint...
|
|
|
3919763 |
Method of making a cooking vessel
The bottom wall and lower sidewall portions of a cooking vessel have a greater thickness and an ornamentally contrasting exterior color from the upper sidewall portion thereof. The utensil is...
|
|
|
3919519 |
Welding material
A consumable welding material particularly suitable for welding products nominally containing nickel-28% chromium-10% iron, comprising, by weight, about 27% to 31.5% chromium, about 5% to 14% iron,...
|
|
|
3919517 |
Sub-merged welding method for high toughness welded metal
This invention related to a sub-merged arc welding method which comprises applying one-side or each-side one pass welding of a steel high notch toughness using a high basicity fusion-type flux...
|
|
|
3904846 |
Adaptive control for arc welding
A semiconductor electronic chopper precisely controls the current to a welding arc in response to arc length as represented by arc voltage. The actual arc current is compared with a reference...
|
|
|
3902038 |
Displaced electrode process for welding
In butt-welding heat is normally applied at the joint between the two pieces which are butt-welded together. When one of the pieces is a relatively heavy mass and the other piece a relatively small...
|
|
|
3902035 |
Apparatus and method for arc working work-pieces with a rotating arc
This invention relates to an apparatus for performing plasma arc welding by a process in which the plasma arc travels about a closed path or orbit on the work-piece. More particularly, the...
|
|
|
3894676 |
Method for construction of railway bolster
A method for construction of a railway bolster is provided wherein the bolster bowl and king bolt openings have liners of low alloy or carbon steel backed by a weld metal deposit with a hardness of...
|
|
|
3894210 |
Methods and apparatus for alternating-current arc welding
A method of alternating-current gas-shielded arc welding is described, the method being particularly suitable for welding aluminium, its alloys and similar materials. The method employs an arc...
|
|
|
3891821 |
Method for repairing iron molds used in steel making, casting plates in iron molds and other objects made of cast iron
A method of repairing damaged parts of cast iron objects wherein impurities adhering to the surface of said damaged parts are first removed after which layers of molten material are applied...
|
|
|
3891824 |
Method of plasma-MIG-welding
A method of plasma-MIG-welding in which welding is carried out with the electrode and the welding wire connected to the positive terminal; by varying the current in the welding wire, a variation of...
|
|
|
3885123 |
Method and means for controlling adjacent arcs
This invention relates to arc welding apparatus and describes a method and means for producing welds in which the metal in the weld area is of higher ductility than has been produced in welds made...
|
|
|
3885121 |
Method for electroslag welding of copper blanks
A method for electroslag welding of copper blanks about 100×200 mm. in cross-section accomplished in a device produced from heat-insulating material retaining the heat of a slag bath and...
|
|
|
3881084 |
Method of welding galvanized steel
A method of welding galvanized steel with a high energy density beam is disclosed. The high energy density can be created by an electron or laser beam with a power density of at least 4×10 6 ...
|
|
|
3876852 |
Method and apparatus for underwater welding
Apparatus and method for making an underwater weld by a diver, including an underwater hand-portable housing having a top portion and depending sides, with at least a part of the housing being...
|
|
|
3874921 |
Weldable primer compositions and processes employing same
Weldable primer compositions for steel plate and the like, comprising a resin constituent, aluminum powder, an inorganic oxide coloring constituent capable of exothermically reacting with the...
|
|
|
3875363 |
Composite electrode wire for electro-slag welding
A composite electrode wire for electro-slag welding, comprising a hollow casing of hoop steel and a powdery composition filled in said hollow casing, said wire containing 0.25 percent or less...
|
|
|
3873799 |
Method of making a composite superconducting tube
A super-conductive assembly is made by overlaying copper and niobium strips longitudinally and welding them together through exposure of the copper strip side to arc welding. The laminated strip is...
|
|
|
3866284 |
ONE-SIDE WELDING PROCESS
A single-side welding process is facilitated by the use of a flux material which is held against the back of the workpieces to be joined by a copper backing strip. At least 40 percent by weight of...
|
|
|
3866014 |
METHOD OF WELDING LAMINATED CORES
A method of welding laminated stacked cores of assembled electromagnetic devices which comprises initially stamping the core laminations so that the outer seams which will be produced on the...
|
|
|
3866011 |
INSTRUCTIONAL APPARATUS FOR UNDERWATER WELDING
Instructional apparatus for use in gaining experience in underwater welding having submerged welding facilities in a water container provided with a below-water level viewing window and a pair of...
|
|
|
3864542 |
GRAIN REFINEMENT CONTROL IN TIG ARC WELDING
A method for controlling grain size and weld puddle agitation in a tungsten electrode inert gas welding system to produce fine, even grain size and distribution is disclosed. In the method the...
|
|
|
3858026 |
METHOD FOR INTERNALLY WELDING PIPE JOINTS
Method for internally welding pipe joints together by telescopingly moving a boom mounted welding head into the interior of the pipe, and into close proximity of the area to be welded. The pipe is...
|
|
|
3858025 |
PATTERN WELDING PROCESS AND CONTROL DEVICE
An arc-seam welding procedure to join two thin sheets in T relationship wherein two infrared sensors disposed on opposite sides of the vertical member detect any welding puddle heat unbalance from...
|
|
|
3857010 |
METHOD FOR WELDING MULTI-LAYER LAMINATED WORK PIECES
Multi-layer laminated metal work pieces, such as barrels or cylinders, are butt-welded in end-to-end relation by multi-pass deposition of molten weld metal from a metal welding rod. The successive...
|
|
|
3853611 |
WELDING MATERIAL FOR SUPER LOW TEMPERATURE STEELS
This invention provides a welding material for super low temperature steels which comprises not more than 0.2% carbon, 5 - 12% manganese, not more than 30% chromium, 4 - 8% niobium, 22% iron and...
|
|
|
3849871 |
METHOD FOR WELDING PIPES
A method for welding large tubular members such as pipe in end-to-end relationship by first machining the ends of the members to form a radially thin, axially extending flange on each end adjacent...
|
|
|
3851142 |
WELD ROD CONTAINING MANGANESE
A cored wire welding electrode for welding cast iron having an outer sheath made of nickel or a nickel-iron alloy and a powedered core composition containing copresent metallic magnesium and...
|
|
|
3851143 |
WELD ROD
A cored wire welding electrode for welding cast iron having an outer sheath made of nickel or a nickel-iron alloy and a powdered core composition containing copresent metallic magnesium, special...
|
|
|
3843867 |
PROCESS FOR OUT-OF-POSITION WELDING
This invention concerns automatic and semi-automatic welding by means of an electric arc under a protective atmosphere of a gas, using a continuous metallic tubular flux core-type electrode with a...
|
|
|
3842237 |
WELDING METHOD EMPLOYING INCLINED PARALLEL GROOVE
A method of welding vertically arranged metallic members together by butt welding, comprising forming between the metallic members a groove defined by parallel groove faces and extending obliquely...
|
|
|
3842238 |
METHOD OF SEALING NUCLEAR FUEL ELEMENTS BY ELECTRIC WELDING
A nuclear-fuel assembly has an end plug and is sealed except for a small diameter axial bore in the plug. A welding electrode of the same material as the plug has an end ground to a point. The...
|
|
|
3838496 |
WELDING APPARATUS AND METHOD
A method and apparatus improvement is disclosed for welding an elongated seam between adjacent metal plates with a plate crawler type welding unit that tracks the seam and that includes a leading...
|
|
|
3838245 |
FLUSH-FACE ELEVATOR DOOR
A flush-face freight elevator door is produced by welding a face plate, at least about 0.090 inches thick, to the members of a frame in the disclosed order, thereby producing a door substantially...
|
|
|
3836748 |
PROCESS OF WELDING A HIGH TENSION STEEL
A process of welding a high tension steel comprising welding said high tension steel by the Metal-arc-Inert-Gas welding method with an electrode by which a metastable austenitic steel weld metal is...
|
|
|
3832523 |
METHOD FOR ELECTRICAL ARC WELDING
A method of electrical arc welding which may be effected in various welding positions by the use of at least one electrode of substantially rectangular cross section, the electrode tip of which is...
|
|
|
3832522 |
WELDING PROCESS AND APPARATUS
In a welding process, the consumable tip of a welding electrode is provided with an oscillating motion, and in one cycle of the oscillation, the characteristics of the arc being generated are...
|
|
|
3830998 |
SINGLE ARC ELECTRIC WELDING WITH MULTIPLE PATHWAYS
A process of automatic arc welding using a single electric arc of high intensity to weld with a fusible electrode metallic parts along multiple and distinct pathways by successive deposition of...
|
|
|
3830999 |
METHOD OF WELDING, FUSING OR HEATING WORKPIECE UTILIZING ENERGY OF LIGHT
A method of welding, fusing or heating a workpiece by concentrating light emitted from an arc lamp as a heat source by an elliptical reflector in which the ratio between the second and first focal...
|
|
|
3826000 |
TERMINATING OF ELECTRICAL CONDUCTORS
Terminating of a metallic, electrical conductor is accomplished by heating an end of the conductor until the metal becomes molten and forms a homogeneous mass followed by cooling and solidification...
|
|
|
3826894 |
SPOT WELDING APPARATUS FOR WELDING END CONDUCTORS IN CYLINDRICAL ELECTRICAL MACHINE ELEMENTS
A spot welding apparatus connects the coil end strips to commutating bars of an armature. A mixture has a rotating base supporting the armature at the end opposite the commutator. An adjustable top...
|
|
|
3825712 |
WELDING PROCESS
This invention relates to a narrow-groove Gas-Tungsten-Arc (GTA) welding process for the butt welding of thick aluminum plates wherein the arc is oscillated across the width of the groove at a...
|
|
|
3825721 |
ELECTRODE FOR VERTICAL-UP OPEN ARC WELDING USING MOLDING SHOES
A cored-type welding electrode for vertical-up welding using molding shoes to hold the molten metal in position, using an open arc which does not require an externally-supplied shielding gas and...
|
|
|
3825716 |
ELECTROSLAG WELDING METHOD
An electroslag welding method utilizing, as its heat source, the resistance heat created in a molten slag during passage of current therethrough, in which a consumable guide is disposed in an...
|
|
|
3819902 |
PATTERN WELDING CONTROL DEVICE
An arc-seam welding procedure to join two thin sheets in `T` relationship wherein two infrared sensors disposed on opposite sides of the vertical member detect any welding puddle heat unbalance...
|
|
|
3818178 |
GAS SHIELDED CORE WIRE ELECTRODE
A core wire electrode for use with a shielding gas, particularly in out-of-position welding, said electrode having a core material containing magnesium and/or magnesium aluminum alloys.
|
|
|
3816694 |
ELECTROSLAG MELTING PROCESS
Modified electroslag metal melting process for welding, refining, ingot making, where metal from bars or wires (thereafter called "bars") is added to molten pools by the method of dropping said...
|
|
|
3809853 |
METHOD FOR SHORT CIRCUIT METAL TRANSFER ARC WELDING
The method and system of the present invention minimizes weld spatter through control of the short circuit current and through control over the short circuit and arc time intervals.
|
|
|
3808396 |
FIXED-DAM, VERTICAL-UP, OPEN-ARC WELDING
A method of vertical-up welding using fixed dams to hold the molten metal in position until hardened wherein the electrode is fed to the weld pool through an electrically energized consumable...
|
|
|
3806696 |
LEAD BATTERY WELDING METHOD AND APPARATUS
A welding method for fusing lead components together in a lead-containing electrochemical cell is disclosed together with apparatus for carrying out the method. The method includes forming an...
|