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#1
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Conway Stewart Churchill Hard Rubber pen
With reference to the posting by Quarterhorseman.
Please do not take any notice of the suggestions or opinions in this article, disassembly of your pen will invalidate your guarantee. The author is obviously unqualified and does not know what he is talking about, and is most certainly not a qualified engineer. It is obvious from the photograph that this person has already damaged his nib by crudely taking apart his pen, and heating the barrel with any kind of flame is not recommended. Any leakage problems experienced has been due to a defective batch of sacs from the sac manufacturers, this has now been cured. The theory that fatness of the sac is causing the pen towrite 'wet' is a complete fallacy, and certainly not based on any engineering principle. Should any customer have any queries please do not hesitate to contact me personally at . |
#3
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Don, it's common knowledge among FP collectors that too large a sac can cause a
pen to leak. Not being a qualified engineer, I have nevertheless fixed a few "restored" leaky pens by just changing the sac to a smaller size. You don't need an engineering degree to do this. At any rate, it seems that you should at least be grateful to Quarterhorseman for remedying what is, ultimately, an engineering flaw created by YOUR company. If your pens write well, we wouldn't be having this conversation. Dik |
#4
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#5
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wrote in message ... With reference to the posting by Quarterhorseman. Please do not take any notice of the suggestions or opinions in this article, disassembly of your pen will invalidate your guarantee. The author is obviously unqualified and does not know what he is talking about, and is most certainly not a qualified engineer. It is obvious from the photograph that this person has already damaged his nib by crudely taking apart his pen, and heating the barrel with any kind of flame is not recommended. Any leakage problems experienced has been due to a defective batch of sacs from the sac manufacturers, this has now been cured. The theory that fatness of the sac is causing the pen towrite 'wet' is a complete fallacy, and certainly not based on any engineering principle. Should any customer have any queries please do not hesitate to contact me personally at . Don, first off, I think the information provided by Quarterhorseman was good, both from a repair perspective and for those of us who may be contemplating purchasing a CS leverfiller. I would have to agree with Frank and others that the disassembly of the pen is not that big of a deal and the problems as described would seem to hold true. If you've messed with enough old leverfillers, you recognize the symptoms right away. I do have a question; why the nylon sleeve design as opposed to the time proven method of machining the nipple on the section itself? That seems an extra piece of potential trouble. I'm sure there is a reason, I'm just curious. Thanks for you time, Kelly G. |
#6
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I am wondering if the company is aware of the principle which was discovered
at the turn of the last century to which people on these boards have alluded but which no one has mentioned: That the reason why smaller sacks are used is that (as Quartermaster mentioned) if there is no space between the sack and the barrel, as soon as any ink is used up in the sack, heat from the body will cause whatever is in the sack (air) to expand and cause wetness or in extreme cases flooding. Looking at the authoritative writings on this subject, - only countered, (rather suspiciously) by the unsupported suggestion that disassembly will invalidate any warranty, - I was wondering about two things: Firstly in mentioning a plastic piece behind what looks like a nipple, why has no one tried putting a neck type sack directly onto the nipple? Would this not obviate the problems mentioned by Frank (whose experience on this subject can hardly be ignored, especially when described in such detail) about the pressure bar causing a kink too close to that nipple (of whatever type the nipple is)? Secondly, why does this quality pen use what one might disparagingly describe as a Morrison-type pressure bar of the type discarded almost immediately on introduction by all quality pen companies? Look at the early Watermans 412 PSFs of around 1915 and the pretty much immediately introduced 452s to see what Watermans learned about making this design work properly. As soon as the pen sees any moisture or gets dipped in water in a non-hot climate, will the u part of this pressure bar not start to rust or at least become weak? Although all cheap pens used this type, I have rarely (LeBoeuf) been aware of that U-type pressure bar used for any period of time by any quality pen company. I suppose one could be made to work properly and be properly manufactured, but isn't the more conventional method more often used because it is better? Put another way, wasn't this the method vaguely similar to the one pictured in Sheaffer's 1908 patent which was discarded by the time they actually got the pen into production about four years later? Licensed to Quill wrote in message ... With reference to the posting by Quarterhorseman. Please do not take any notice of the suggestions or opinions in this article, disassembly of your pen will invalidate your guarantee. The author is obviously unqualified and does not know what he is talking about, and is most certainly not a qualified engineer. It is obvious from the photograph that this person has already damaged his nib by crudely taking apart his pen, and heating the barrel with any kind of flame is not recommended. Any leakage problems experienced has been due to a defective batch of sacs from the sac manufacturers, this has now been cured. The theory that fatness of the sac is causing the pen towrite 'wet' is a complete fallacy, and certainly not based on any engineering principle. Should any customer have any queries please do not hesitate to contact me personally at . |
#7
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wrote in message ...
With reference to the posting by Quarterhorseman. Please do not take any notice of the suggestions or opinions in this article, disassembly of your pen will invalidate your guarantee. The author is obviously unqualified and does not know what he is talking about, and is most certainly not a qualified engineer. It is obvious from the photograph that this person has already damaged his nib by crudely taking apart his pen, and heating the barrel with any kind of flame is not recommended. Any leakage problems experienced has been due to a defective batch of sacs from the sac manufacturers, this has now been cured. The theory that fatness of the sac is causing the pen towrite 'wet' is a complete fallacy, and certainly not based on any engineering principle. Should any customer have any queries please do not hesitate to contact me personally at . A qualified engineer?? OMG! I think that Torricelli discovered 95% you need to know to understand how the feeding of a fpen works (the remaining 5% is commonsense), and that took place a few centuries ago. Juan |
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