Feeds-Simple And Complex

[Pen Engineer]

Golly, what an awful lot of effort and emotional energy being expended. Just admitting that you weren't 100% correct would be much easier.

 

I think we all agree that the feed is there to handle things like differential in air pressure (from e.g. heat or air travel), being knocked etc. I don't think we agree that "inertial ink flows" are a problem (other than when the pen is knocked) or that the feed is to deal with the extremely simple situation where "you set down your pen after a period of writing to grab a sip of coffee".

 

I must admit I get lost in your wordy arguments about patent applications and whether it's the engineer or marketing who come up with ideas. As long as someone noticed that fountain pens can blob and someone decided to fix it, I'm happy.

Agree... in all points

[Pen Engineer]

Answered both clearly and fairly. Shall we rinse and repeat?

Russell T Wing wrote about air and atmosphere, but not about inertially potent streams of ink, in Patent US2187528

 

 

 

I was wondering how many replicas of the ghost of Louis E could dance on the tipping of a Waterman No 2 nib? We could go on for pages about that.

42

[Pen Engineer]

 

AMEN. I originated these posts and I can hardly remember what it was about anymore, Oh yea. Are elaborate feeds necessary or are they mostly marketing? I now think that they are a bit of both

I think, IMHO, they are necessary. Marketing? They haven't got a clue... IMHO

[Pen Engineer]

 

 

I'm having a hard time tuning this out.

 

On the one hand it's about feeds, something I genuinely want to learn more about.

 

On the other hand, this has turned into a semi-personal rant which serves no real purpose than to vent on others. I cannot say I gained any knowledge from trying to read this topic.

Learning about feeds? Really?

 

May I invite you to visit my blog of Fountain Pen Magic?

 

The link to all about feeds is here.

 

Enjoy

 

and please ask questions... not here, it is getting to crowded

[Pen Engineer]

 

Thank you for your succinct summary milkb0at.

 

I have not enjoyed this thread. In my experience it has been well outside what I have known and like at FPN. By way of personal explanation, I have tried hard to stick to a critical point and have not fisked posts.

Should any person whatsoever believe there is something I ignored and to which they believe I should make some reply, then PM me only. I will answer plainly and cover any previously omitted detail, but only by private message, not here.

 

Here, now, I am leaving crickets to chirp.

 

Do you like Cabernet Sauvignon?

[praxim]

 

Do you like Cabernet Sauvignon?

 

Yes , although I have open for this evening a bottle of Tempranillo Touriga from the Geographe region of WA. It is quite all right, really.

[Pen Engineer]

 

Yes , although I have open for this evening a bottle of Tempranillo Touriga from the Geographe region of WA. It is quite all right, really.

I'll check it out...

 

Coming from a wine growing area, I generally drink young wine and found Hardy's Regional Range (very reasonably prised) quite good for every day.

 

BTW... How many fins has the feed in the bottle?... or does it run free, gravity fed?

[Pen Engineer]

 

Yes , although I have open for this evening a bottle of Tempranillo Touriga from the Geographe region of WA. It is quite all right, really.

peneplain

 

(geology) a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements

 

where is that? On the mountain?

[praxim]

Like pen to paper, if I allow it to run too freely I can become a bit feathery at the edges,

[praxim]

peneplain

 

(geology) a more or less level land surface representing an advanced stage of erosion undisturbed by crustal movements

 

where is that? On the mountain?

I have mentioned in another thread I am near but not in Sydney, which itself is in a large eroded basin around the well-known harbour. Thus, I am in the surrounding hills or ranges.

 

Personally, I am not sure Oz can claim to have any actual mountains. We have some pretty high hills.

 

 

ETA: I cheated really. The Sydney basin is hardly flat, but the word helps to make something rhythmic.

Edited September 28, 2016 by praxim

[Pen Engineer]

Never looked at it this way. I guess, one takes what is available, I like the Blue Mountains... mountains? ...by any other name, they smell as sweet, not smell, but it makes something rhyme.

 

I used to live in Lane Cove, till 1990

 

It's a great word: Peneplain.... I am a bit of a writer and am intrigued where I could use this word, soon, before I forget

[Pen Engineer]

I have mentioned in another thread I am near but not in Sydney, which itself is in a large eroded basin around the well-known harbour. Thus, I am in the surrounding hills or ranges.

 

Personally, I am not sure Oz can claim to have any actual mountains. We have some pretty high hills.

 

 

ETA: I cheated really. The Sydney basin is hardly flat, but the word helps to make something rhythmic.

Humbly, I would like to turn your attention to an idea I posted in the forum Fountain Pen Magic in post #50… here is the link

[praxim]

Thank you. I will look around.

[Pen Engineer]

amazing how quiet it is here, now, since...

 

How did this forum start? I believe we even lost the initiator.

 

just spent the last few days to put together a timeline of life for one of me other blogs. It's my outlet for thoughts and ponderings.

 

SMILE

 

if you want to visit it.

 

till anon

[pen tom]

amazing how quiet it is here, now, since...

 

How did this forum start? I believe we even lost the initiator.

 

just spent the last few days to put together a timeline of life for one of me other blogs. It's my outlet for thoughts and ponderings.

 

SMILE

 

if you want to visit it.

 

till anon

 

I'm the originator and I'm still here. Although I have drifted off at times. The topic moved beyond my feeble abilities.

 

I'm happy that its been enjoyable for you. You have a lot of zeal. Thats good

 

Tom

[Bo Bo Olson]

It was an interesting thread, with good links. I did learn things, or learned of things....depending on my level of understanding, which varied.

 

Bernoulli's law is a variable in aircraft. Some like the DC-3 are because of great and stable, others like the F-4 and most turn on a dime fighters are so unstable....they need a super fast autopilot or they won't stay in the air.

 

About air planes, according to Texas mythology, some Swiss watchmaker, built a spring driven air plane that flew for about a mile in @ 1850. Having to get out and wind up his air plane every mile probably meant he got passed by an ox cart, much less by a guy loping on his horse.

 

Paper, ink; a slow goose and a sharp pen knife.

Yep, timing was everything; and also in minor engineering advances; like going from using a dime as a lever in the Conklin rubber sac fountain pen to a lever in 1912's Sheaffer. First there had to be a press able rubber sac, before a simpler lever could better it.

Timing is everything....Gray's mail was two hours slower than Bell's at the patent office.

One must be in the right place to have timing; the various Russians and Germans and I think a Swede were in the wrong place at slightly the wrong time, or we'd never known of Bell.

 

Our world is made up of small to tiny advances, on the whole, with an occasional major discovery; the rubber sac, the Lucky Curve, more buffering for less flexible nibs. It took WW2 to perfect tipping....and so on.

Edited October 9, 2016 by Bo Bo Olson

[Pickwick]

Never looked at it this way. I guess, one takes what is available, I like the Blue Mountains... mountains? ...by any other name, they smell as sweet, not smell, but it makes something rhyme.

 

I used to live in Lane Cove, till 1990

 

It's a great word: Peneplain.... I am a bit of a writer and am intrigued where I could use this word, soon, before I forget

 

With reference to mountains, I bought a Rotring Initial fountain pen 6 years ago which has 'APC System' engraved on the cap. The instruction booklet states APC is Air Pressure Control which means this pen will write without problems at 30,000 feet. However it gave no indication whether I would need to be in a pressurized aircraft or with a party of friends enjoying a picnic on the top of Mount Everest ! If this claim holds good, how does it work?

 

Yours in anticipation,

[Pen Engineer]

 

 

Paper, ink; a slow goose and a sharp pen knife.

Yep, timing was everything; and also in minor engineering advances; like going from using a dime as a lever in the Conklin rubber sac fountain pen to a lever in 1912's Sheaffer. First there had to be a press able rubber sac, before a simpler lever could better it.

Timing is everything....Gray's mail was two hours slower than Bell's at the patent office.

One must be in the right place to have timing; the various Russians and Germans and I think a Swede were in the wrong place at slightly the wrong time, or we'd never known of Bell.

 

 

What about Bell? No idea... who is he?

 

Bernoulli's law.... I know about that... wrote about him in my essay Why Airplanes can't fly!

 

good to hear from you again

Edited October 10, 2016 by PenIngeneer

[Pen Engineer]

 

With reference to mountains, I bought a Rotring Initial fountain pen 6 years ago which has 'APC System' engraved on the cap. The instruction booklet states APC is Air Pressure Control which means this pen will write without problems at 30,000 feet. However it gave no indication whether I would need to be in a pressurized aircraft or with a party of friends enjoying a picnic on the top of Mount Everest ! If this claim holds good, how does it work?

 

Yours in anticipation,

ahm... 30 000 feet? that's about 10 kilometers?

 

I believe this statement is slightly dishonest, slightly. They should have said: "You can use the pen in an aircraft that flies at 10 km height, or 30 000 ft." Any "normal" fountain pen would give reason for its name on top of Mount Everest....

 

But, then again. I have been thinking about a pressurised sealed ink capsule, similar to the space ball pen. It would make ink (in this capsule) very expensive... however, that started already when they started selling ink in cartridges... like water in bottles! In Australia people pay 4 and 5 dollars for 300ml of water... that makes it $15 per litre and then they complain about the cost of petrol... $1.20 a litre... got a bit side tracked.

 

about the ink capsule... I think it can be done, selling price AUS $8.95. I always wondered about this AUS before the $. Is there a hidden A-US in there?

 

to return to your question... I have no idea how they would do this so that it could write in Mount Everest.

 

Nice to have made your acquaintance Mr Pickwick, Sir!

[Pickwick]

ahm... 30 000 feet? that's about 10 kilometers?

 

I believe this statement is slightly dishonest, slightly. They should have said: "You can use the pen in an aircraft that flies at 10 km height, or 30 000 ft." Any "normal" fountain pen would give reason for its name on top of Mount Everest....

 

But, then again. I have been thinking about a pressurised sealed ink capsule, similar to the space ball pen. It would make ink (in this capsule) very expensive... however, that started already when they started selling ink in cartridges... like water in bottles! In Australia people pay 4 and 5 dollars for 300ml of water... that makes it $15 per litre and then they complain about the cost of petrol... $1.20 a litre... got a bit side tracked.

 

about the ink capsule... I think it can be done, selling price AUS $8.95. I always wondered about this AUS before the $. Is there a hidden A-US in there?

 

to return to your question... I have no idea how they would do this so that it could write in Mount Everest.

 

Nice to have made your acquaintance Mr Pickwick, Sir!

 

Thank your for your response. The conclusion you come to sounds very logical. By the way, If we ever decide to prove this theory, maybe we might consider organizing an expedition to the Himalayas along with other members. Remember to bring plenty of ink for my pen along with paper, and we'll enjoy a picnic together on top of Mt. Everest! If you prove Rotring wrong then I'll be in a position to sue them for expenses incurred!