Translations:Pneumatic filler/3/en

The system was simple, functional and sturdy, all the space included in the inner barrel was usable for the bag (without the need for a pressure bar as for lever filler) which allowed the Chilton to have a much higher autonomy than the competitors. Moreover this simple mechanism was very easy to repair, it was enough to unscrew the inner barrel to replace the sac. Finally, the presence of the aeration hole allowed to keep balanced the internal pressure of the pen, so that it did not present problems of leakage or absence of ink in case of variations in pressure or temperature.