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Author Topic: Model sternwheel engines.  (Read 25032 times)

Bill Hudson

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Model sternwheel engines.
« Reply #15 on: July 31, 2006, 03:56:02 PM »
Thank you Sandy,

Lots of stuff to ponder.    :thinking   Looking forward to the second PDF installment.  Great looking boiler.

Bill

thewharfonline

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Model sternwheel engines.
« Reply #16 on: July 31, 2006, 05:33:38 PM »
Oh what pretty steam boilers...I want a model steam engine...heck I want a real one! A nice portable or traction engine would go down a treat for me!

Anyone with a free full size traction engine contact me...

For some reason I think I will get no reply.

I read the PDF too...well skimmed over it, it looked way to much like my maths class today...(shiver)...

Eddy's right it does look complicated. Premachined model steam engine goodness is looking good too me right now!

Bill Hudson

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Model sternwheel engines.
« Reply #17 on: August 01, 2006, 01:04:50 AM »
I'll try again. It seems my last reply got lost in cyberspace.

Sandy,  Thanks for the information it gives me a lot to think about :thinking

Am looking forward to the next PDF installment.  Good looking boiler. Any plans (drawings) for it.

Bill.

Bill Hudson

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Model sternwheel engines.
« Reply #18 on: August 01, 2006, 01:09:45 AM »
Well now my first thank you post shows up after i posted the second one.  No problem, your effort was worth two thank yous.   :respect2

Bill

sandy_ACS

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Model sternwheel engines.
« Reply #19 on: August 01, 2006, 06:16:17 AM »
:D  :D

Hi PD's,

Many thanks to all for your kind comments, most appreciated.

Ky paddlewheeler....

I would be very happy to see some pictures of the full size B.of L. I only have some very small pictures of her, not much specific detail easily seen, when I looked her up on the web and got some other info from the same source, however, this is a bit sketchy.
The main reason for changing to the B.of L. was the mere fact that she was powered by the type of engines I am proposing, although they may well have had piston or slide valves, rather than the lever operated type.
The main thing is that the stern wheel was driven by Pitmans, rather than by other connection.
As I don't, at this point in time, have very much other details of her, I am not able to judge how difficult , or otherwise, the change over may be, so an info would be most helpfull. :respect

Sean....

If you thought that bit was tough...just wait for the next bits... :twisted:  :twisted:  :evil:  :evil:  :hehe  :hehe  :music
Anyhow, I wish I had your flair for writing.

Bill Hudson..

Happy to oblige my friend, just sorry it took so long, anyway, I hope you glean something from it.
As for the boiler, well, I don't have actual detailed drawings available, at least not ones that would be easily understood by anyone but me (pencil drawn, workshop sketches), however, if you look back through the 'Live Steam' posts, under 'Boilers' and look for a post I put in on Sun Dec 13 2005, you will find attached a PDF of the basic Scott layout.

This is approx 1/2 full size if printed out and apart from some minor positional changes to the safety valve and filler etc (Customer requests) the rest is pretty much the same.
Hope this helps.

Ok guy's .... :P  :D  :D  8)
Must dash.

Best regards to all.

Sandy


Offline steamboatmodel

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Re: steam ports and condensation etc
« Reply #21 on: August 04, 2006, 11:43:55 AM »
Quote from: "sandy_ACS"
Hi PD's :D  :D  :clap  :music


Finally..for this post anyway..I also attach some photos of a recently finished SCOTT water tube boiler, which now resides in NZ.

This has a barrel length of 8" x 2 1/2" dia and is fitted with 17 water tubes and a superheater. It is rated for 75psi but has the safety set for 60psi as requested by the customer.
The white coloured stuff on the inside of the end plates is 2mm thick Kaowool insulation, the main outer wrapper is lagged inside with 8mm Kaowool.
The burner is 6" long x 2" wide and it will raise steam from cold (ambient) to 60 psi in just about 3 minutes max.


Ok PD's I will stop blowing my trumpet now// :terrific  :great  :news  :yeah and get this posted.

More to follow soon....HONEST..I am getting an artical on steam generation sorted and also one on ceramic burners.

Regards to all  :respect  :respect2  :trophy

Sandy


With work like that you should be BLOWING YOUR TRUMPET, it looks absolutely fantastic. What is the black coating and how flame/heat resistant is it?
Regards,
Gerald
Be wary of strong drink. It can make you shoot at tax collectors--and miss. Lazarus Long

thewharfonline

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Model sternwheel engines.
« Reply #22 on: August 04, 2006, 04:40:36 PM »
Quote from: "sandy_ACS"
:D  :D

Sean....

If you thought that bit was tough...just wait for the next bits... :twisted:  :twisted:  :evil:  :evil:  :hehe  :hehe  :music
Anyhow, I wish I had your flair for writing.


Sandy


I'll blame my age and the fact that I am studying General maths! Actually I think I might download the document again and try to make heads and tails out of it! If I do can I get a chocolate- that's what my Maths teacher would do...which reminds me, he owes me six chocolates!

And thanks for your comment about my writing! I just gave my english teacher the link to the forum...so maybe I'll get some chocolates off him too!

sandy_ACS

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Model sternwheel engines.
« Reply #23 on: August 08, 2006, 06:18:28 AM »
:D  :D  :D  :computer

Hi Pd's,

First off let me join you all in welcoming fabrice-bretagne in our midst.
I hope you find our efforts worthy, and I am sure everyone would welcome any input you may have to offer.

Ok, here goes...

Sean wrote....
Quote

I'll blame my age and the fact that I am studying General maths! Actually I think I might download the document again and try to make heads and tails out of it! If I do can I get a chocolate- that's what my Maths teacher would do...which reminds me, he owes me six chocolates!

And thanks for your comment about my writing! I just gave my english teacher the link to the forum...so maybe I'll get some chocolates off him too!


I suppose this means I will have to get my INGLISH WRITE or I will get detenshun... :hehe  :hehe

Anyway, just for you I have added a special section to the attached post documents.


Gerald....Thanks for the kind words...I do try to do a good job.

The paint used is 'Industrial Heat Shield'  manufactured by Plasti-Kote.
It has complete heat resistance  up to 425 deg C and puts up with a good deal from direct contact with the burner flame, although in this situation it does eventually burn off, but only locally.
 :hmmm  :hmph


Ok, I have attached several PDF files which constitute part 2 of the steam saga.

The one called 'Concerning entropy' was added as a bit of fun, aimed at Sean,  although it may well be of interest to all.


More to come.

Best Regards to all.

Sandy

Offline Eddy Matthews

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Model sternwheel engines.
« Reply #24 on: August 08, 2006, 06:29:32 AM »
WOW! Absolutely fantastic Sandy!

Its certainly going to take some time to read all that lot and even start to understand it, but I'd still like to say a great BIG thankyou for all the effort you've put into producing these documents! I'm sure they will be appreciated by a great many people, both current members and new ones in the future...
~ Never, ever, argue with an idiot. They'll drag you down to their level and beat you with experience ~

Offline derekwarner_decoy

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  • Wollongong - Australia
Model sternwheel engines.
« Reply #25 on: August 08, 2006, 06:32:38 PM »
Hey Sandy, on a number of occasions you have made PAULTRY excueses....."must go PD's & check as a few boilers are in the pickle"

Is this your text for you needing a wee drop of  :beer  :?:  :?:  :?:

I understand a pickling solution for steel is dilute H2SO4, but what is the pickling solution for copper :?: - reason I ask is the black HT paint on my ACS de-oiler/condenser needs replacing & need to know the best method of surface preparation prior to repainting with that black gloss aerosol HT paint as commercially available here in OZ - as mentioned in a post offline a few weeks back

Oh BTW, :oops  ...... the only reason the paint needs replacing on my ACS de-oiler/condenser is because the 1/25 scale boiler room crew were  :beer &  :gather rather than completing their work without scratching the Bl.........dy thing - Derek
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

sandy_ACS

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Model sternwheel engines.
« Reply #26 on: August 08, 2006, 07:05:31 PM »
:darn  :beer  :oops

Quote
..Is this your text for you needing a wee drop of    



Trust our DW to sus me out... :great  :nah

The best way to prepare your boiler for a re-paint would be to remove the existing (scratched coating, I told you to get better staff!!!) with some cellulose thinners....messy but it is the best way.

The normal pickle I use for copper boilers is a dilute solution of Sulphuric acid...not very good to have around the home...a suitable alternative is Citric Acid.

If you have a store near you that sells bear and wine making products then this can be purchased from them in crystal form.

Dilute 100gm in a 4 ltrs warm water, and soak the whole boiler in it for a few hours, after you have stripped all the old paint off with thinners.
This will remove any greasy residue and/or surface oxide.

Rinse thoroughly in clean fresh HOT water, leave to dry and then get the paint on fairly quickly.

Citric acid is quite safe to handle (you can safely stick bare hands in it),  and may be flushed away down the domestic drains, with lots of water.   NOT SO with Sulphuric.

PS...do not use pickle for anything that has been soldered with Soft solder, or Comsol. It will turn black and oxidise.
Only to be used with silver soldered, or brazed joints.

Now where did I put that  :coffee  :oops  :beer  :angel


Just for the record..PD's....Our Derek has made a claim that it was an OZ what invented WD40.....Possible true, the trouble is they also sell the previous experimental formuli, the ones that did not work as water repellants....they call them 'Fosters' and '4XXXX'....not that I have tried them, you understand,  :angel however, I am given to believe that they taste much the same as WD40....so prehaps there is some truth in the rooommmer..... :oops  :shhh  :nose  :hehe  :music

Have fun. keep smilling

Regards to all.

Sandy.

sandy_ACS

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Model sternwheel engines.
« Reply #27 on: August 08, 2006, 07:51:41 PM »
Quote from: "Eddy Matthews"
WOW! Absolutely fantastic Sandy!

Its certainly going to take some time to read all that lot and even start to understand it, but I'd still like to say a great BIG thankyou for all the effort you've put into producing these documents! I'm sure they will be appreciated by a great many people, both current members and new ones in the future...


 :D  :D

Hi Eddy,

Hey, it's my pleasure my friend....just passing on some of my limited knowledge in the hope it helps someone.

your post got me thinking, :thinking  :shoot , and I have a suggestion to make....What about collating all the documents under one heading...E.G. Steam workshop...or some such.
This might make it a little easier for people to locate all the parts, not only my input, but everyone elses as well?

I know that this would create a fairly big job for you to piece it together, however, If this could be done, then I would be happy to post any new sections, or sub sections, under whatever heading you choose.

I think this would be of particular benefit to new comers, who may not be aware of all the different headings that things tend to appear under, and thus they may miss some things that would be of help/interest to them.

Just a suggestion. :evil:  :twisted:  :D

Have a think about it anyway, and let us know.

Best Regards.

Sandy.

Offline Eddy Matthews

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Model sternwheel engines.
« Reply #28 on: August 08, 2006, 08:04:05 PM »
Thanks Sandy,

It's my intention to start setting up some new areas on the website for articles such as yours, I'll do the same with any plans we have etc etc...

These won't be on the forum, but hopefully in an easily accessible format off our homepage. It will be a while before I get round to doing it though, family holidays are fast approaching so I have to listen carefully to what "she who must be obeyed" says right now if I want to keep my bits intact!

But hopefully over the winter I'll get round to doing all this stuff - I also have to start organising a move to a larger server to give us the space and bandwidth necessary to carry out these changes...

If you could arrange for 36 hour days I would probably be able to manage everything I need to do - 24 hours a day just isn't enough!
~ Never, ever, argue with an idiot. They'll drag you down to their level and beat you with experience ~

sandy_ACS

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Model sternwheel engines.
« Reply #29 on: August 08, 2006, 08:16:55 PM »
Quote from: "Eddy Matthews"
Thanks Sandy,

It's my intention to start setting up some new areas on the website for articles such as yours, I'll do the same with any plans we have etc etc...

These won't be on the forum, but hopefully in an easily accessible format off our homepage. It will be a while before I get round to doing it though, family holidays are fast approaching so I have to listen carefully to what "she who must be obeyed" says right now if I want to keep my bits intact!

But hopefully over the winter I'll get round to doing all this stuff - I also have to start organising a move to a larger server to give us the space and bandwidth necessary to carry out these changes...

If you could arrange for 36 hour days I would probably be able to manage everything I need to do - 24 hours a day just isn't enough
!


 :D  :D

Ok Eddy, sounds like you have some existing thoughts on this matter, so I won't interfere.
As a clarification....I was thinking more of a SUB Heading, still under Live steam, but was not sure if that could be achieved. Whatever, I am sure you will make the correct choices, as you have always done.

I agree, 36, or even 48 hours a day would be helpfull at times, but then work would just expand to fill it all up, so yer just couldn't win.


Take care. and enjoy your family holiday...and do as your told..... ya need all yer bits.....:twisted:  :evil:

Best regards.

Sandy

 

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