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7435373 |
A method and apparatus for removing burrs from inside slotted metal liners exposes the burrs to a high-intensity gas flame that effectively oxidizes or incinerates the burrs, without inducing undesirable temperature levels in the parent ...
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6203629 |
A process for cutting coked metal includes cutting with a flame or by electrowelding after the coked metal has been heated sufficiently to relieve stresses in the metal.
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5160549 |
A tube fin trimming machine adapted for clamping and cutting elongated finned structures, such as finned tubes. The trimming machine includes an elongated main frame having at least one guideway, support means attached to the baseplate a...
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4747886 |
A robot drive for cutting fins having pipes extending on opposite sides therefrom, with the pipes laying in parallel spaced apart rows, comprises a carriage which can move in the longitudinal direction between rows of the pipes. A pair o...
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4618378 |
A templet for cutting patterns in pipe with a torch includes a tube that is axially split into hemicylindrical segments. The segments are biased together in alignment with a coil spring. The segments are spread apart by squeezing attache...
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4483721 |
A method and apparatus for cutting a series of patterns spaced along the length of a tubular member (e.g. drill collar). A cutting torch is positioned and manuevered within the bore of the pipe so that all cutting is done in an inside-to...
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4414041 |
A guide system for a gas cutting torch used to bevel the ends of pipe in preparation for welding includes a circular sleeve with integral spacer bars coacting with a radial screw for fixing the circular sleeve coaxially around a pipe to ...
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4405384 |
An apparatus is disclosed for re-claiming used or damaged tube turns and rendering them equivalent to new tube turns with correctly oriented openings. A salvaged tube turn is temporarily fixed to a platform in a position such that the lo...
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4347077 |
Process for producing a magnesium alloy which comprises: reducing magnesium oxide with a carbonaceous substance at high temperatures; rapidly cooling the resultant reaction product in an inert atmosphere to obtain powder magnesium;...
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4222795 |
Apparatus for cutting and beveling pipe comprising a horizontally positioned and movable member, roller means to support and axially rotate a horizontal pipe parallel to the member, a photocell scanner mounted on the member and positione...
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4219370 |
Apparatus for cutting a pipe end for intersection with another surface comprising a horizontally positioned and movable boom, roller means to support and axially rotate a horizontal pipe parallel to the boom, a photocell scanner mounted ...
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4137101 |
To remove a solid tire from a wheel over which that tire has been pressed, a transverse groove is cut in the tread of the tire with a cutting apparatus so as to expose the underlying rim. Then the exposed portion of the rim is cut with a...
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4018629 |
Apparatus is disclosed for guiding a metal cutting torch to enable the flame thereof to cut a controlled thickness of metal material from the length of the outer surface of a elongated hollow cylindrical workpiece mounted securely to a s...
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3900346 |
The automatic guiding of a work tool on the curves of intersection of two pipes or tubes whose axes are at an acute cutting angle to each other and wherein at least one of the pipes has a noncylindrical cross section and one of the pipes...
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3856283 |
A simplified device for cutting and beveling the end of a section of pipe is disclosed. The device includes a flexible strip of smooth hard surfaced material which is circumferentially wrapped around the outer periphery of the pipe for m...
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3840718 |
A grooved hoist drum is formed from a steel pipe mounted in a turning lathe. A carbon torch unit is mounted on the lathe carriage with the carbon electrode aligned with the periphery of the drum generally at the horizontal plane through ...
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3662999 |
A cutting torch is mounted on a carriage which, in turn, is mounted on an arm pivoting on an axis parallel to the axis of a pipe to be cut. Cutting is carried out in a plane, and from two different pivot positions along correspondingly d...
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3572668 |
A graduated vertical pipe for holding and accurately positioning a cutting torch, said pipe being slidably mounted in a top centering ring that is mountable in rotation on the top of the piling to be cut, the bottom of said graduated pip...
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3442500 |
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3417980 |
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3349477 |
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3249349 |
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3212375 |
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3206180 |
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3069298 |
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2918125 |
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2812274 |
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2812174 |
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2745475 |
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2742960 |
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2722494 |
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2680486 |
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2660545 |
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2556786 |
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2547191 |
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2500245 |
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2482188 |
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2455615 |
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2422338 |
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2347804 |
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2347245 |
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2345688 |
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2323974 |
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2302182 |
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2296376 |
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2289968 |
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2289786 |
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2283345 |
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2267792 |
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2266552 |
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