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3882299 |
Rotating arc pipe welding machine
An automatic pipe welding apparatus for end to end joining of pipes of large diameter. The machine incorporates means for striking an arc between the ends of two pipes to be joined together. A...
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3859495 |
SUBMERGED-ARC WELDING MACHINE
A submerged-arc welding machine comprises a welding head pivoted to a frame of the machine so as to be rockable across the seam of a workpiece being welded, and a vertically movable oscillation...
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3806694 |
APPARATUS AND METHOD FOR WELDING JOINTS BETWEEN METAL SHAPES
A traveling electric arc welding apparatus using gas shielded consumable wire electrode, comprises a welding head mounted on a traveling carriage. The mounting means provide for angular shifting of...
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3783232 |
APPARATUS FOR THE MANUFACTURE OF HOLLOW ROD ELEMENTS
Apparatus for manufacturing hollow rod elements with a pair of end sections connected thereto, including guide bar means having two pairs of adjustable supports individually slidable thereon, the...
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3777115 |
APPARATUS FOR CONTROLLING ELECTRODE OSCILLATION
A welding apparatus wherein the welding electrode is moved transversely in oscillating motion across the weld path, the electrode to be capable of dwelling at either the fore or aft point of...
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3757079 |
METHOD AND APPARATUS FOR ELECTRIC ARC WELDING UTILIZING HIGH VOLTAGE, LOW CURRENT ELECTROSTATIC COOLING
Method and apparatus for welding metal workpieces to provide a distortion-free weld of high integrity where the method includes the use of an electric arc welding head for carrying out the usual...
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3755647 |
METHOD FOR MAKING A TUBULAR STRUCTURE
This invention is a simple and easy method for making tubular structures of substantial thickness in an effective and efficient manner.
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3702916 |
WELDING UNIT FOR MOTOR CAR WHEELS
A welding unit for motorcar wheels has a pair of interchangeably mounted welding heads on a horizontal rail for selective alignment with an elevatable and rotatable support for the wheel. The head...
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3654419 |
TRACK WELDING APPARATUS
Improved adjustable fixture for pipe tack welding apparatus whereby the apparatus can tack weld a pipe section that has a length greater than the length of the apparatus itself by simple adjustment...
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3652823 |
INTERCHANGEABLE PLURAL ELECTRODE GUIDES FOR ELECTRIC ARC WELDING
A device for the continuous mechanical welding of hollow bodies such as tubes includes a mounting means for one or more welding nozzles, and a plurality of welding wire feed nozzles which may be...
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3646309 |
SELF-ADAPTIVE WELDING TORCH CONTROLLER
A fully automatic, self-adaptive welding system has been provided for programmed welding applications. The welding torch position, either vertically or horizontally, is generally responsive to a...
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3643059 |
A METHOD OF WELDING TUBES TO TUBE PLATES
This disclosure describes a method of an apparatus for seal welding. In order to allow for automatic welding a groove is provided around the bore in a tube plate, header or the like, and an annular...
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3641309 |
APPARATUS FOR WELDING THIN METAL SHEETS
Apparatus for welding a longitudinal seam in thin metal sheets, including a plurality of welding electrodes arranged in a row and in alignment with the seaming portions of the metal sheets, the...
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3632959 |
EXCHANGEABLE CARTRIDGE UNIT FOR AUTOMATIC WELDERS
A quickly exchangeable cartridge unit for automatic or semiautomatic welder machines, e.g., for welding, especially large diameter pipelines and the like, includes a small unit frame capable of...
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3627972 |
WELD CONTROL
This disclosure relates to welding, and provides improved welding control by monitoring the heat radiations emitted at the weld area; the amount of these radiations indicating the condition of the...
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3621183 |
SELF-PROPELLED MACHINE FOR SUPPORTING AN OSCILLATING TOOL
Self-propelled machine for supporting a tool which is required to describe a meandering path between the edges of two metal sheets disposed end-to-end, e.g. a welding machine, comprising means for...
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3619554 |
DC ARC WELDING CURRENT CONTROL RESPONSIVE TO CURRENT AND WORKPIECE FEED RATE
A feedback control system for DC arc welding wherein signals representative of current, and workpiece feed rate, are combined to control the current supplied through a thyristor rectifier, from a...
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3582599 |
INTERNAL WELDING TOOL
A welding head construction for use with typical traveling head automatic welding equipment to form submerged or shielded arc welds internally in confined spaces too small to receive the usual...
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3581041 |
WELD BOX FOR TUBE FORMING MILL
A weld box having laterally spaced walls with inlet and outlet ports through which a tube to be welded passes, preweld and postweld rollers mounted in the box and adjustable with respect to the...
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3551636 |
AUTOMATIC PIPELINE WELDING METHOD AND APPARATUS THEREFOR
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3544752 |
MULTI-ARC SEAM WELDING APPARATUS FOR THIN METAL SHEET
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3538295 |
PLANT FOR RESISTANCE BUTT-WELDING OF PIPES
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3535489 |
ELECTRON BEAM WELDING APPARATUS
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3534199 |
IN-PLACE TUBE WELDING TORCH
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3521020 |
METHOD OF BUTT WELDING TUBES
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3516843 |
DIAZO PAPER SENSITIZING PROCESS
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3515843 |
AUTOMATIC WELDING DEVICE FOR JOINTING CONCRETE PILE SECTIONS WITH STEEL END PLATES
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3513286 |
APPARATUS FOR WELDING TUBES TO A TUBE PLATE
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3510626 |
APPARATUS FOR WELDING HOLLOW WORKPIECES FROM THE INSIDE
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3509303 |
METHOD OF AND APPARATUS FOR WELDING
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3509302 |
APPARATUS FOR WELDING CIRCUMFERENTIAL SEAMS
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3495064 |
TACK-WELDING MACHINE
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3493716 |
INTERNAL TUBE WELDING TORCH
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3483353 |
WELDING APPARATUS
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3483351 |
ROTATING REEL FOR ELECTRICALLY COUPLING TO A ROTATING MEMBER IN A VACUUM CHAMBER
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3483352 |
APPARATUS FOR WELDING LARGE PIPES WITH A BEAM OF CHARGED PARTICLES
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3467809 |
WELDING APPARATUS FOR FORMING PANELS OF TUBES
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3463899 |
DEVICE FOR WELDING PARTS BY ELECTRON BOMBARDMENT
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3461269 |
MODIFIED WATER COOLED TORCH
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3461264 |
METHOD AND APPARATUS FOR WELDING GIRTH JOINTS IN PIPE LINES
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3461265 |
ORBITAL WELD HEAD
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3453411 |
MACHINE FOR AUTOMATIC WELDING OF RISING JOINTS BETWEEN VERTICAL PLATES
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3450858 |
WELDING MECHANISM
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3440393 |
INTERNAL TUBE ARC WELDER
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3439147 |
METHOD OF AND APPARATUS FOR ARC WELDING TUBULAR MEMBERS TO FORM AN INTEGRAL PANEL
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3437787 |
DUAL ARC WELDING PROCESS
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3436517 |
METHOD OF AND APPARATUS FOR MAKING FINNED TUBES
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3427228 |
PREVENTION OF FLOODING IN A DISTILLATION COLUMN BY CONTROL OF COLUMN TOP PRESSURE
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3427428 |
APPARATUS AND METHOD FOR WELDING METAL PIPES AND THE LIKE
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3424887 |
APPARATUS FOR WELDING PIPE JOINTS
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