Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements {; Spraying or sprinkling heads with rotating elements located upstream the outlet} with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet {with moving, e.g. rotating, outlet elements the spray jet actuating a movable deflector which is successively moved out of the jet by jet action and brought back into the jet by spring action}