TORCH FOR GAS FLAME MACHINING OF METALS Russian patent published in 1997 - IPC

FIELD: hand and machine welding, soldering and cutting. SUBSTANCE: torch has handle accommodating gas and oxygen feed pipes connected with pipe to feed fuel mixture into detachable tip through diffuser of mixing chamber provided with injector. Mixing chamber has sleeve in which diffuser is installed forming shock absorbing space. Mixing chamber has also coupling connected with diffuser and injector. Diffuser is made of material whose strength is lower than that of material of coupling and fuel mixture feed pipe. Mixing chamber is replaceable. Sleeve is rigidly secured on fuel mixture feed pipe. Additional channel is made in handle to deliver oxygen to which replaceable tip can be connected. EFFECT: simple design, improved safety and repairability. 3 cl, 3 dwg