New changeable hollow cylindrical conical feather for fountain pens, characterized in that it contains four grooves so that the ink flows there towards the tip of said feather, and said ink supplied by means of a supplier and regulator that is fitted inside said feather. Said ink supply and regulator has longitudinal channels that communicate the deposit contained in said fountain pen with the tip of the hollow cylindrical conical boom, and said longitudinal channels also communicate with the circular ones, which they pass through, and in which they remain stored reservation ink to write. Said hollow cylindrical conical boom, with the supplier and ink regulator inside, is adjusted (or threaded), inside the neck of the fountain pen hull, which communicates with the ink tank thereof. (Machine-translation by Google Translate, not legally binding)
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