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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 4985610 | Cutting torch A cutting device which includes an external tube, an internal tube disposed within the external tube, and a number of steel rods or wires housed within the internal tube. A squib, with or without additional fuel, is disposed within the external tube and a... | 01/15/1991 |
| 4790886 | Method and apparatus for remote under water torch cutting A method for torch cutting metal walls by burning powdered metals admixed with a gas oxidizer to establish a pre-heat flame at a cutting zone and followed by continuously adding a gas cutting agent for intensifying said flame cutting through the metal wal... | 12/13/1988 |
| 4660807 | Wrapped thermal torch and method A consumable thermal torch includes inner and outer casings having a first gas flow passage defined therebetween. At least one burning rod is received in the inner casing further defining second gas flow passages. Each of the inner and outer casings is a ... | 04/28/1987 |
| 4610434 | Safety arrangement in gas-cutting lances A safety arrangement in a so-called gas-cutting lance (1) arranged to be connected at one end (2) thereof, the attachment end, to a gas-supply handle (3) or like means for causing gas, primarily oxygen gas, to flow through the lance. The lance comprises a... | 09/09/1986 |
| 4385941 | Method and apparatus for producing a molten puddle during scarfing A method for producing a molten puddle on the surface of a metal workpiece to be scarfed consists of igniting a mixture of fuel gas and oxygen. The resultant flame is used for heating a steel wire to a temperature of from 900° to 1450° C., whereupon the... | 05/31/1983 |
| 4351676 | Method and apparatus for powder scarfing of metal A method for powder scarfing of metal resides in that combustible gas and oxygen are fed to a zone (9) of treating a metal (10) in order to form a heating flame. Then, flux is delivered by means of a flux-carrier gas, whereupon the former is separated fro... | 09/28/1982 |
| 4337099 | Method and apparatus for conditioning of steel surface A flaw detecting unit inspects the surface of a red-hot steel material, the nail marking unit drives steel nails into the flaw in response to the flaw detection signal, and a scarfing unit scarfs the flaw starting from the nails in response to the scarfin... | 06/29/1982 |
| 4324389 | Device for scarfing the surface of a metal workpiece A scarfing device includes a powder supply apparatus having a plurality of discharge nozzles controlled by a shutoff valve and includes at least one extra scarfing nozzle associated with one of the powder discharge nozzles.... | 04/13/1982 |
| 4322059 | Scarfing torch A scarfing torch includes upper and lower preheating blocks spaced apart to form a scarfing oxygen channel and having a powder supply consisting of a nozzle provided in one of the preheating blocks.... | 03/30/1982 |
| 4217850 | Apparatus for flamescarfing An apparatus for flamescarfing the surface of a workpiece includes a powder supply device having a powder container connected via a shut-off valve to a powder distributor which is connected via hoses with nozzles mounted on the flamescarfing burner.... | 08/19/1980 |
| 4175984 | Method and a device for initiating an oxygen deseaming process A method for starting a gas deseaming of ingots and billets employs a point-shaped heating source. A motion is imparted to said heating source parallel to the orifice of a gas-planing nozzle. An oxidizing gas jet emerging from said nozzle burns away metal... | 11/27/1979 |
| 4121081 | Apparatus for and method of refeeding electrodes in an electrical discharge machining apparatus This disclosure relates to the refeeding of one or more electrodes of an electrical discharge machining apparatus after the electrodes have been used and unevenly worn. The electrodes are mounted within a cartridge which includes an element which offers f... | 10/17/1978 |
| 4103877 | Device for the flame treatment of a work-piece A device for the flame treatment of a work-piece, includes upper and lower preheating blocks disposed to define a flame-oxygen duct, holding means operable for holding the blocks and including a gas distribution system communicating with said duct, and a ... | 08/01/1978 |
| 4057229 | Ignition rod and feed device An ignition rod for an oxygen flame cutting and welding apparatus comprising a plurality of individual rod elements and a device for feeding the ignition rod from storage to a point of use.... | 11/08/1977 |
| 4042225 | Torch with gas actuated starting rod feed device A gas actuated starting rod feed device for use with hand holdable oxygen cutting and/or scarfing torches. The starting rod feed device includes means for gripping and advancing a starting rod. The gripping means is operated in response to the stroke of a... | 08/16/1977 |
| 4022442 | Welding and cutting apparatus The present invention relates to a device for welding and cutting stainless steel or other various alloys wherein the mixture of pure oxygen and metallic powder mainly made of iron is jetted under high pressure at an object to weld or cut which is welded ... | 05/10/1977 |
| 3933533 | Method and apparatus for initiating scarfing In the method of scarfing surface defects of to-be-scarfed metal material as said material is moving relative to the scarfing machine with scarfing nozzle, the improvement, which comprises a step of supplying oxygen into the consumable electrode pipe so p... | 01/20/1976 |
