Abstract: A machine for producing mechanical rotation power consists of a one or more rotors with exhaust nozzles spaced on the outer edge spinning faster than the combustor. The system includes a vibration free piston air compressor or other air compressor to pressurize the intake air. Each of the burners include a fuel nozzle, a swirl burner, and a convergent divergent nozzle to create thrust form escaping heated combustion exhaust in the opposite direction of rotation. The burner assemblies are restricted by 2 discs on each side of the burner assembly that extend over the top of the discs to contain the burners. Multiple rotors are used on the same axle. The engine produces both thrust and rotary power with more power per size and weight greater than current piston internal combustion engines.

Abstract: A 3 mm (0.13?) diameter by 40 mm (1.6?) long graphite cloth filament is clamped between two heat shielded clamps and 12-volt 10-300 amp current travels through the invention when the switch is turned on, which heats the filament by electrical resistance. The heated cloth is placed on the weld joint to melt the metal. The welding tool allows welding 0.25 mm (0.01?) to 5 mm (0.19?) thick metals. It can also weld stainless steel without inert shielding gas from the sacrificial oxidation of the graphite cloth rope surrounding the melted metal.