Abstract: The present invention is a position marking apparatus which is implemented for stamping markings on a surface, such as a wood log, at predetermined regular intervals. The position marking apparatus includes a wheel drum having an axle shaft rotatably connected to a rod on one side which extends proximally upwards to a handle for gripping, and optionally a handle extension. The position marking apparatus includes a flange mounted to the outside of the wheel drum, which is larger in diameter than the wheel drum for maintaining the wheel drum on a desired path. The wheel drum has an ink cartridge for containing ink, and at least two ink ejecting slots on the circumference of the wheel drum for marking a separation distance. The position marking apparatus includes a concave spring to ensure proper contact of the wheel drum against the surface to be marked.

Abstract: The invention relates to a method for the progressive induction surface hardening of a closed curve trace of a workpiece, the closed curve trace and a hardening device being moved relative to one another in a feed mode to harden the closed curve trace starting from an initial zone to an end zone, an unhardened soft zone being provided. According to the invention, the workpiece is provided with a marking, the hardening device having a sensor for detecting said marking. The curve trace and the hardening device are moved relative to one another along the treatment direction until the senor detects the marking. Once the marking is detected, another movement takes place in the treatment direction before the hardening device is activated, the curve trace being hardened by the relative movement. The marking is again detected by means of the sensor and the hardening device is then deactivated. The invention also relates to an arrangement which is suitable for carrying out the method described.

Abstract: A sprocket having one or more mud relief portions offset from the midpoint between adjacent teeth. The sprocket has a plurality of teeth, and saddle sections disposed on the periphery of the sprocket between each of the plurality of teeth. The saddle has a seat disposed at a midpoint between the adjacent teeth, and one or more mud relief portions disposed on each side of the seat. The mud relief portions are recessed within the sprocket. The mud relief portions may be mirror images of one another, or the saddle may alternatively be asymmetrically formed.

Abstract: Disclosed is a rehabilitation training apparatus including a pair of first tracks that are arranged in parallel at an interval, a second track that is perpendicular to the pair of first tracks and is movably connected to the pair of first tracks, a hand holder that is movably provided in the second track and on which a hand of the user is held, a holder driving unit that reciprocally moves the hand holder along the second track, and a track driving unit that reciprocally moves the second track along the pair of first tracks.

Abstract: A gantry robot system may include a workpiece support, a workpiece feeder for engaging the workpiece and moving the workpiece in a first direction relative to the workpiece support, a gantry, a slide movably mounted on the gantry and movable in a second direction different from the direction of movement of the workpiece by the workpiece feeder, an articulated arm mounted on the slide and having an end effector at an end of the articulated arm opposite the slide, and a computer control connected to actuate the workpiece feeder, the slide, the articulated arm, and the end effector in a coordinated manner to perform a preselected machining operation.

Abstract: Combustible gas, which is easy to be stored, transported and the like and can contribute to improving the quality of a finished state of an operation such as gas cutting, gas welding or brazing, contains ethylene at 38 v/v % or more and 45 v/v % or less and the remainder being hydrogen and unavoidable impurity.

Abstract: A method of directing gas flows in a gas torch includes directing a flow of a first gas and a flow of a second gas to a mixer central gas passageway of a mixer and directing the flow of the mixed first and second gases from the mixer to an axial passageway of a tip. The method further includes directing a flow of a third gas to an outer passageway of the tip, directing the flow of the third gas inwardly through at least one intermediate gas passageway, and then directing the flow of the third gas to a tip central gas passageway of the tip. Finally, the flow of the mixed first and second gases and the flow of the third gas are directed distally through a distal portion of the tip.

Abstract: The object of the present invention is to provide a method for cutting with gas which uses a cutting tip including a preheating hole for forming a preheating flame with a fuel gas and an oxygen gas for preheating, and an oxygen gas hole for cutting a workpiece by injecting oxygen gas for cutting, and which can decrease an amount of hydrogen gas used by supply a fuel gas to the preheating hole, which is appropriate in both heating and cutting the workpiece, and an apparatus for cutting with gas, and the present invention provides an apparatus for cutting with gas (30) which supplies an oxygen gas, and a fuel gas to a cutting tip (20) including a preheating hole (23) and an oxygen gas hole for cutting (22), wherein the apparatus (30) includes a supply circuit for oxygen gas (50), a supply circuit for hydrogen gas (41), a supply circuit for hydrocarbon-based gas (45), and a gas supply control means (60), and the gas supply control means (60) can alter a ratio of the hydrogen gas and the hydrocarbon-based gas whi

Abstract: A method and apparatus provide for remote control, monitoring and/or servicing of heat-treatment equipment via wireless communications networks. Specifically, the method and apparatus can be used in pre and post-weld heat-treatment applications for steel pipes in a variety of industries, including, but not limited to, power plants, chemical and petrochemical plants and refineries. Importantly, the embodiment generates and manages all the documentation necessary to input and verify the specified heat-treatment process. It will produce and deliver to the customer the reports and certificates required by the applicable quality control standards, requirements and regulatory authorities.

Abstract: An emergency cutting torch system adapted to be stored within a compartment of a rescue vehicle. The emergency cutting torch system may comprise a wheeled cart adapted to maintain a first gas storage tank and a second gas storage tank to the wheeled cart in all orientations of the wheeled cart. The emergency cutting torch system may comprise a rotateable lifting member adapted to be rotate outward to extend from the wheeled cart to facilitate engagement with a hook, or other lifting member, for lifting the emergency cutting torch system. The lifting member may rotate to a stowed position to reduce the outer dimensions of the emergency cutting torch system. The emergency cutting torch system may comprise a quick-release system to enable a hose assembly wound on a cart be removed quickly without having to unwind the hose assembly from the cart.

Abstract: An apparatus for positioning a tool relative to a workpiece, including a first carrier rotatable on a first axis and a second carrier carried by the first carrier and rotatable about a second axis defined by the first carrier. The second axis is in a parallel and offset eccentric relationship to the first axis. A tool holder is secured to the second carrier in an offset eccentric relationship to the second axis, and a drive mechanism selectively rotatably drives the first carrier about the first axis and the second carrier about the second axis to selectively position the tool holder. A tool secured in the tool holder may be moved along a selected path relative to a workpiece.

Abstract: In accordance with the method and the device according to the invention, previous pure pyrotechnic primers for initiating the ignition charges (6a, 6b) of the oxygen lance igniters (13) are replaced by a small quantity of powdered zirconium (7). Zirconium is pyrophoric and therefore ignites, providing it has a sufficiently large surface area, in the presence of a sufficient quantity of pure oxygen, although in ordinary air it is no more flammable than ordinary wood.

Abstract: A scraper removes debris from under a work table, particularly slag resulting from cutting of metal. A pair of parallel tracks extends along opposite sides of a collection area under the table. A blade carriage is carried on the tracks and driven between forward and rearward positions. A pair of arm assemblies are connected to opposite sides of the blade and pivotally mounted to the carriage for moving the blade between a scraping position and a retracted position. A forward notch on each of the tracks is contacted by the arm assembly after reaching the forward position to cause the arm to move the blade from the scraping position to the retracted position during rearward movement. A rearward notch on each of the tracks is contacted by the arm assembly after reaching the rearward position and commencing forward movement to cause the arm to move the blade from the retracted position to the scraping position. The carriage is moved by continuous cables.

Abstract: An apparatus for positioning a tool relative to a workpiece, including a first carrier rotatable on a first axis and a second carrier carried by the first carrier and rotatable about a second axis defined by the first carrier. The second axis is in a parallel and offset eccentric relationship to the first axis. A tool holder is secured to the second carrier in an offset eccentric relationship to the second axis, and a drive mechanism selectively rotatably drives the first carrier about the first axis and the second carrier about the second axis to selectively position the tool holder. A tool secured in the tool holder may be moved along a selected path relative to a workpiece.

Abstract: A steel cutting apparatus includes a cutting torch that is moved in an arcuate path for guiding the cutting torch so that a cutting flame of the cutting torch is always aimed at a bottom corner of the steel at the side where the cutting process begins. Molten steel and iron oxide flow through a kerf in the steel toward the bottom corner, and drop away from the billet for collection and disposal. Only a very small amount of slag adheres to the bottom corner of the billet when cutting is complete.

Abstract: A torch cutter exhaust system has a torch and an exhaust shroud at least partially encircling a discharge tip of the torch and mounted to the torch for movement therewith. The shroud is a crescent-shaped enclosure having an intake port and an output port. A table is located beneath the torch to support a material while the material is being cut by the torch. A gantry, movably mounted to the table, supports the torch and exhaust shroud. A duct, mounted to the gantry, connects the exhaust shroud with a flexible exhaust hose located alongside the table. The output end of the hose connects to a vacuum source to create low pressure near the discharge tip of the torch. The input end of the exhaust hose moves in unison with the gantry. The exhaust hose is supported by a wheel assembly that moves in response to the motion of the gantry.

Abstract: The invention concerns a procedure for flame-cutting a slab using at least one oxycutting torch at a workstation and a device for implementing this procedure. The slab and the oxycutting torch are moved in relation to each other, with the slab arranged in a cutting position such that its primary plane lies at an angle of −10° to −20° with respect to the vertical plane.

Abstract: A carriage for guiding a cutting, beveling or welding torch on the surface of a metal work piece has a chassis which is transported along a main path on the work piece by a magnetic wheel assembly driven by a reversible motor mounted on the chassis. A rack and pinion assembly mounted on the chassis is driven by another reversible motor mounted on the chassis to transport a torch holder along a path perpendicular to the main path. A remote controller electrically connected to the drive motors is manually operable to simultaneously permit forward or backward transport of the chassis, right or left transport of the holder and variation of the angular velocity of the chassis motor and the rack and pinion motor so as to accurately trace any cutting path on the work piece with the torch. The elevation of the torch above the work piece and the angle of incidence between the torch and the work piece are manually adjustable.

Abstract: A steel cutting apparatus includes a cutting torch that is moved in an arcuate path for guiding the cutting torch so that a cutting flame of the cutting torch is always aimed at a bottom corner of the steel at the side where the cutting process begins. Molten steel and iron oxide flow through a kerf in the steel toward the bottom corner, and drop away from the billet for collection and disposal. Only a very small amount of slag adheres to the bottom corner of the billet when cutting is complete.

Abstract: The invention is a remotely controlled internal pipe cutting device primarily used for cutting pipes where the outside of the pipe is inaccessible at the line where the cut is to be made. The device includes an axial ram within a rotational cylinder which is enclosed in a housing. The housing is adapted for attachment to an open end of the pipe and for supporting the ram and cylinder in cantilever fashion within the pipe. A radially movable cutter, preferably a plasma arc torch, is attached to the distal end of the ram. A drive mechanism, containing motors and mechanical hardware for operating the ram and cylinder, is attached to the proximal end of the housing. The ram and cylinder provide for moving the cutter axially and circumferentially, and a cable assembly attached to a remote motor provide for the movement of the cutter radially, within the pipe. The control system can be adjusted and operated remotely to control the position and movement of the cutter to obtain the desired cut.

Abstract: The invention concerns a procedure for flame-cutting a slab using at least one oxyacetylene cutting torch at a workstation and a device for implementing this procedure. The slab and the oxyacetylene cutting torch are moved in relation to each other, with the slab arranged in a cutting position such that its primary plane lies at an angle of −10° to −20° with respect to the vertical plane.

Abstract: A method for manufacturing a reel seat includes annealing an aluminum ingot at a temperature ranging from 450° C. to 500° C. for 5˜10 hours and the temperature is then reduced to 220° C.˜280° C. The aluminum ingot is then cold-forged. Next, property of the aluminum ingot is adjusted by heating the aluminum ingot to a temperature ranging from 450° C. to 600° C. for 3˜8 hours and the cooling the aluminum ingot in water. Then, the aluminum ingot is heated to a temperature ranging from 150° C. to 250° C. for 7˜11 hours. The aluminum ingot is then cut to a precise size and shape.

Abstract: A method and system for cutting hub bores in metal railroad wheels is disclosed. The system includes a lead and second torch for cutting the hub bores. In the method, the lead torch is moved to an initial position above the wheel. The lead torch is energized and moved to cut through a part of the wheel. The second torch is moved to an initial position above the wheel. The second torch is then energized and moved to cut through a part of the wheel. The entire hub bore is cut in the wheel. Additional torches may also be provided. A gantry system for supporting the lead and second torches is disclosed. The gantry system includes lead and second linear movement means arranged parallel to each other and a third linear movement means perpendicular to the lead and second linear movement means. The gantry system also includes a lead torch carriage means for supporting the lead torch and a second torch carriage means for supporting the second torch.