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Matches 1 - 24 out of 24


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5478052 Carriage for guiding a tool along a specified path on a workpiece  
A carriage is disclosed for holding and guiding a tool along a specified path on a workpiece at a controlled, substantially constant speed. The carriage has at least one drive roller disposed on a...
4747886 Tube fin removal robot  
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...
4716271 Apparatus for positioning a tool with respect to a cylindrical work piece  
An apparatus for circumferentially and longitudinally positioning a weld head or other tool with respect to the surface of a pipe. A first annular ring is affixed to the pipe. A longitudinally...
4448340 Apparatus for replacing bolster rings  
The disclosure concerns a procedure for replacing a worn bolster ring on a freight car truck bolster which utilizes a motorized circle cutting and welding machine which rests upon the bolster and...
4346873 Lead screw portable torch drive  
A portable torch support and guide having a torch mounting carriage advanceable along a track by a threaded member on the carriage in releasable engagement with a feed screw. Release of the bearing...
4312498 Fixture for cutting tube turns  
A fixture for selectively positioning a tube turn for acetylene torch cutting thereof to a desired included angle includes means for supporting a tube turn of particular dimension and for...
4285503 Apparatus for steam generator tube wrapper spacer and support block removal  
A spacer and block cutting torch is lowered through the wrapper-to-shell annulus of a removed-top steam generator by addition of vertical sections of hollow-back column by vertical movement of a...
4283043 Cutting torch attachment  
A system for using a cutting torch for making accurate curved, straight and beveled cuts. A supporting and guiding device is attached to cutting torches, which may be of various sizes and shapes,...
4279405 Device for making emergency exits in a crushed transport means  
A device comprises a gas cutter in the form of an annular combustion chamber (10) provided with injectors and manifolds for delivery of oxidant and fuel into the combustion chamber (10) and an...
4238663 Tube bundle cutting method and apparatus  
One or more pairs of vertically-spaced-apart sidewardly-aimable plasma arc cutting torches, the upper one angled upward and the bottom one downward, on the end of a horizontal boom movable...
4158315 Track guided carriage unit  
A track guided carriage unit for selectively supporting a variety of work performing devices, tools and the like for movement along a predetermined working path, in which a supporting platform has...
4054179 Stone and concrete cutting machine  
A stone and concrete cutting machine is described for performing cutting operations on stone or concrete surfaces. The machine includes an elongated base that is mountable to a stone or concrete...
3908973 Apparatus for squaring the upper end of a ground driven h-beam pile  
The apparatus includes an elongated frame structure and a carriage unit movable longitudinally of such structure. A cutting torch assembly is releasably locked on the carriage unit with the cutting...
3785631 PARTING AND BEVEL BURNING DEVICE  
The disclosure is to a device which can be employed in combination with a welding torch fixed therein in a predetermined position and direction, the device being adapted to be moved, carrying the...
3779444 POWER PROPELLED WELDING AND CUTTING APPARATUS  
Power propelled apparatus for welding, cutting and similar work operations, in which a wheel supported carriage attached to an elongate workpiece is movably guided therealong while performing the...
3747911 CIRCLE METAL CUTTER  
The circle metal cutter comprises a radial arm mounted on a centering block which has been centered on the circle to be cut in the metal work piece, an acetylene torch mounted on the end of the...
3713636 INCENDIARY CUTTING TORCH FOR UNDERWATER USE  
An incendiary torch having a cylindrical housing with a nozzle positioned one end thereof. The nozzle is held in place by a retainer cap threadedly attached to the housing which includes a...
3713637 PORTABLE FLAME CUTTING MACHINE  
A portable flame cutting machine which includes an elongated guideway or base rail with rack upon which a carriage is driven and supported. The carriage carrying an auxiliary rail with rack movable...
3713635 OXY-ACETYLENE CUTTING TORCH-HOLDER AND GUIDE  
A torch guide consisting of a rail which can be clamped onto a work piece adjacent an intended path of cut, a carriage movably supported on the rail, and a bracket on the carriage to receive a...
3630506 RAIL-CUTTING MACHINE  
In a rail-cutting machine, a blowtorch is so guided for pivotal movement in relation to the rail in a plane transverse thereof that the blowtorch remains at a constant distance from the rail while...
3450398 MOTORIZED TORCH FOR CUTTING STRUCTURAL MEMBERS  
3417979 Welding or cutting machine with removable template  
3188069 Flame cutting and beveling machine  
2851264 Metal cutting apparatus  
Matches 1 - 24 out of 24