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Platinum pocket pens are easy to find in the second hand market in Japan. Originally, these pens could be used with either cartridges –Platinum proprietary cartridges— or converters. But this company stopped producing the short aerometric converters suitable for their pocket pens and now we are bound to refill their cartridges.
However, there is an easy way to adapt a current platinum converter to fit in a pocket size pen.
The first picture shows all the parts of the converter. On the top side, the modified, short converter. The original, regular length, at the bottom. To disassemble the Platinum converter, simply unscrew the golden metal part from the transparent ink deposit.
The only piece that needs to be modified is the hollow cylindrical handle that operates the internal screw and moves the piston up and down. This screw must NOT be cut—those last threads make the piston to reach the bottom end of the converter.
The modified cylinder is 7 mm. shorter than the original.
The final picture shows how the screw can pass through the cylindrical handle. When used in a pocket pen, this screw should not be pulled all the way out—just to the end of the cylinder. Needless to say, the converter will not be filled to its maximum.
In a number of pocket pens, this converter has the whole transparent window hidden by the pen section, thus hiding the amount of remaining ink. But modified, this converter can be used in any Platinum pen.
(Inagi, June 26 2010)
[labels: Platinum, conversor, soluciones técnicas]