Device for practicing self-control air let out-do in wind musical instruments

摘要

Device for performing the self air issued on wind musical instruments, that being intended for use with a mouthpiece of a trumpet, trombone or the like that will fit on one end of the device, essentially characterized in that it is constituted by coupling and functional association of two parts, one consisting of a cylindrical outer body with a completely open end and the other having a central hole extended by a shaped section trumpet while inwardly and in proximity to that end the said generally cylindrical body having a concentric annular flange and a totally hollow tubular portion projecting towards the base or open end of the cylindrical main body, without reaching the edge thereof being provided that the second piece is constituted is derived by a tubular hollow body with one end is closed and proximate to which di cho body is affected lateral orifices, while in correspondence with the opposite end has outer ring from which the tubular body itself is extended by an end section of slightly larger diameter a wing, whose tubular body is housed inside the tubular portion that has a cylindrical main body, being authorized axial displacement relative to the latter, complementing the assembly with a helical spring is disposed in the annular space defined between the inner tubular portion and the side surface of the body generally cylindrical spring supported by one end in the annular flange and concentrically of the cylindrical main body and the other end in the annular flange and external of housed tubular body inside the first being retained said tubular body in the cylindrical overall by an affected with a central hole for passage of the cylindrical section of greater diam nut meter available to the tubular body itself and which nut threaded onto the mouth of the cylindrical main body.