A METHOD AND A DEVICE FOR MOVING A JET MEMBER

摘要

A device for moving a jet member (6) having a nozzle comprises a carriage (4) movable in a substantially rectilinear path and provided with a base portion to wich the jet member is pivotably connected. First drive means (9) are arranged for moving the carriage for moving the nozzle of the jet member in said rectilinear path over a layer to be treated by the jet, and second drive means (10) are arranged for pivoting the jet member with respect to said base portion for changing the attack angle of the jet upon said layer. A control arrangement (21) is adapted to coordinate the control of said first and second drive means for moving the impact point of said jet on said layer with a substantially constant speed over said layer.