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Sailor PG KOP cap disassembly.

4030

By 4030
in Japan - Asia

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EricTheRed Rare

EricTheRed

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Interesting 🤔 Thanks for the update. Congratulations on carefully disassembling the pen’s cap without damaging it.   I suspect the inner cap is there for a good reason but your experiment will reveal the truth of the matter in good time…

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4030

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3 hours ago, EricTheRed said:

Interesting 🤔 Thanks for the update. Congratulations on carefully disassembling the pen’s cap without damaging it.   I suspect the inner cap is there for a good reason but your experiment will reveal the truth of the matter in good time…

I have removed the inner cap of two other Sailor demonstrators without any issues whatsoever, but never on a KOP model. I think it will be fine. I’ll post an update if it explodes. 

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XYZZY Vintage

XYZZY

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Thank you @4030 for posting the pictures & description.  I am looking forward to hearing your experience after using the pen without inner cap for a while.  It certainly looks nicer without the inner cap, and I do have the same model.

 

One of the things this reminds me of is that somewhere (not even sure if FPN) there was a post that the patent for the Platinum Slip & Seal was not about the inner cap, or even that the inner cap could rotate, but instead having to do with how they mounted the inner cap to the outer cap.  I haven't seen the patent myself so I cannot confirm that, but I am interested in seeing it.  I have spent time translating old pen patents in German, or Dutch to English, and found that exercise illuminating, but unfortunately I never found the patent for the Slip & Seal.  And the Japan patent website is does not work well with the machine translation systems so I have never persisted to find it.

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42 minutes ago, XYZZY said:

Thank you @4030 for posting the pictures & description.  I am looking forward to hearing your experience after using the pen without inner cap for a while.  It certainly looks nicer without the inner cap, and I do have the same model.

 

One of the things this reminds me of is that somewhere (not even sure if FPN) there was a post that the patent for the Platinum Slip & Seal was not about the inner cap, or even that the inner cap could rotate, but instead having to do with how they mounted the inner cap to the outer cap.  I haven't seen the patent myself so I cannot confirm that, but I am interested in seeing it.  I have spent time translating old pen patents in German, or Dutch to English, and found that exercise illuminating, but unfortunately I never found the patent for the Slip & Seal.  And the Japan patent website is does not work well with the machine translation systems so I have never persisted to find it.

Does the inner cap rotate in the Platinum S&S mechanism?

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A Smug Dill Museum Piece

A Smug Dill

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5 hours ago, 4030 said:

Does the inner cap rotate in the Platinum S&S mechanism?

 

Yes. 

I endeavour to be frank and truthful in what I write, show or otherwise present, when I relate my first-hand experiences that are not independently verifiable; and link to third-party content where I can, when I make a claim or refute a statement of fact in a thread. If there is something you can verify for yourself, I entreat you to do so, and judge for yourself what is right, correct, and valid. I may be wrong, and my position or say-so is no more authoritative and carries no more weight than anyone else's here.

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Update: I have left the pen untouched and with the nib pointing upwards for five days. I uncapped it and it wrote right away, a nice, wet flow. I will do a one month trial as well.

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miig Near Mint

miig

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 That sounds awesome @4030! I think it looks much nicer that way.

Now if you could just please also come up with a nice aftermarket, good-looking, large capacity converter for the KOP you will have perfected it.

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