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Steam Stationary Engines, Traction Engines Antique steam engines, their boilers, pumps, gauges, whistles and other related things that make them run.

Steam Stationary Engines, Traction Engines

Scale Models 1/4, 1/3, 1/2, ect


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  #301  
Old 01-28-2013, 11:07:56 AM
John Deck John Deck is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Jim that is possible Tom had a habit of using what he had on hand when it came to that. But the majority were built with 2". The other issue to take into account is when you figure flue placement you need to make sure you have an adequate wash out plug in the front. Alot of this depends on what engine you are trying to model and what scale. The smaller the firebox the more issues you will have with keeping a head of steam. Fireing methods also come into play and just stuffing the box full does not mean you will have plenty of steam. We have learned alot as we have restored our 1/2 scale Case about what works and what doesnt. We dont use coal as our main fuel, wood works best and once we have a good fire we will sprinkle some coal on top to give it some effect. 2" X 2" and 3" X 3" work very well cut to about 20" work very will in our firebox with smaller stuff to fill in the holes. Smaller dia. wood and more of it on a regular basis will give you more heat due to the increased surface area that is burning.

John Deck
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  #302  
Old 01-28-2013, 12:37:47 PM
DianneB DianneB is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Quote:
Originally Posted by Nick S. View Post
Ok scale makers. I have a question. Do you fudge any of the dimensions on your boilers to give you more heating surface area or do you just put as much flu area as possible. Any insight would be awesome!
Pick up the book "Model Boilers & Boiler Making" - it has all the design formula.

Steam and water do NOT scale down so a boiler that steams well has to be designed in its own right.

For my 1/2 scale Russell I took the outside dimensions from the prototype and designed the internals from scratch. Doing all that also tells you what your limitation is for cylinder size/RPM to avoid running out of steam.
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  #303  
Old 01-28-2013, 03:59:38 PM
Clooper Clooper is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Figured I'd post my engine as well! 5/8 scale Case. Not the nicest, but just as fun to me! First photo is in OH where we went and purchased, second photo is at the local fairgrounds awaiting restoration.
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  #304  
Old 01-28-2013, 06:38:35 PM
Paul Leatherman III Paul Leatherman III is offline
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Photo Re: Scale Models 1/4, 1/3, 1/2, ect

I thought i would contibute a little something here. This is Ricky Ritchies half scale Case. He and his father Glenn built this engine from scratch. It is absolutely awesome and so much fun to run. This picture was taken at the Shenandoah Valley Steam and Gas Engine show at Berryville Va in 1998 i do believe. I am the owner of the 1922 50 Horse Case pictured with it. Rick and Glenn are the best machinists i know bar none. And they are like family as well. Seated on my engine are my father Paul Jr and my brother John Mark. More about my engine another time
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  #305  
Old 01-28-2013, 06:48:08 PM
Paul Leatherman III Paul Leatherman III is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Well i like it
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  #306  
Old 01-28-2013, 06:55:03 PM
butch vollmar butch vollmar is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

John! You're absolutly correct in small pieces of fuel being either wood or coal. I have two ARUs and one has 2" flues and the other has 1 1/2"
flues. Under a load the 1 1/2" flue engine bounces back to pressure quicker that the 2" engine due to the added heating surface. However bigger pieces of fuel doesn't provide the heat that the smaller ones due. I feel this is where most engineers with scale engines get into trouble as they try to feed the bigger stuff. It doesn't work on a scale engine. BV
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  #307  
Old 01-30-2013, 11:15:18 AM
Nick S. Nick S. is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Everybody's input has been noted and taken. I really appreciate all of it! Now to answer some of the questions. What I would love to build is a 5/8 scale 30-98 double side mount Nichols. She'll be a beast!
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  #308  
Old 01-30-2013, 12:42:53 PM
Paul Leatherman III Paul Leatherman III is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

I like it. I would be proud to have that engine.
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  #309  
Old 01-30-2013, 03:16:16 PM
Nick S. Nick S. is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Where can a guy find decent Pickering governor's and throttle valves for the half scales. Really the governor for a 5/8 scale would be about a 2" so that's probably what I would use.
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  #310  
Old 01-30-2013, 03:38:07 PM
LarryT LarryT is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

The Terning half scales use a 1" governor.

Larry T
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  #311  
Old 01-30-2013, 04:01:31 PM
Jeff Smith Jeff Smith is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Quote:
Originally Posted by LarryT View Post
The Terning half scales use a 1" governor.

Larry T
Ternings also machined his governors.
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  #312  
Old 01-31-2013, 11:51:07 AM
3/4 ADVANCE 3/4 ADVANCE is offline
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Question Re: Scale Models 1/4, 1/3, 1/2, ect

Hi Nick; I have a 1 1/4" feeding my 6" X 8" cylinder. I would think a 1 1/2" would probably have enough flow for you. Perhaps someone can post a chart for suggested dia. of a governor to feed so many cubic inches of cylinder. Your two cylinders will need more than a half scale Case 65, but I think 2" would be overkill. JMHO. Hope this helps, 3/4A
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  #313  
Old 01-31-2013, 06:53:08 PM
John Deck John Deck is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Terning used a ball valve for his throtle it is a heavy duty one that has replaceable seats it is bolted together and he used it also as a union in his plumbing from the steam dome to the gov. He fabricated a new lever to match his linkage.
Will post pics when I can.
John Deck
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  #314  
Old 01-31-2013, 09:39:36 PM
Nick S. Nick S. is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Quote:
Originally Posted by 3/4 ADVANCE View Post
Hi Nick; I have a 1 1/4" feeding my 6" X 8" cylinder. I would think a 1 1/2" would probably have enough flow for you. Perhaps someone can post a chart for suggested dia. of a governor to feed so many cubic inches of cylinder. Your two cylinders will need more than a half scale Case 65, but I think 2" would be overkill. JMHO. Hope this helps, 3/4A

I know when you scale pipe sizes, it doesn't come out right. So in my mind scaling the size of pipe is like scaling the size of cylinder should come close I would think. So 5/8 scale of a 3" steam line comes out to be 1 7/8". Maybe I'm all wet, I don't know. I do like your suggestion for a chart tho!!!

To give some rough dimensions of my future engine,
Boiler dimensions might have to be tweaked a little.

Cylinders: 4 9/16" x 6 5/8"
Barrel
Dia: 25"
Length: 111"

Fire Box L: 32"
W: 22"
H: 35"
Flues:
No: 24
Dia: 2"
Length: 59"
Flywheel
Dia: 25"
Face: 7.5"

Rear Wheels
Dia: 50"
Face: 25"

---------- Post added at 07:39 PM ---------- Previous post was at 07:36 PM ----------

p.s. Next time I go to Antlers Bar and Grille I might have to swing by the home of a small Advance!
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  #315  
Old 05-17-2014, 01:43:46 PM
Jeff Smith Jeff Smith is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

There are some new models out there, any pictures of them?

Thank you!
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  #316  
Old 05-17-2014, 02:48:35 PM
T James Ives T James Ives is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

This was not built by me but I have become its 3rd owner in 9 years.
It has lost it's 'new' look and has a nice patina on it. I was contemplating a repaint next winter but now it is cleaned up I don't think I will.
It is a half scale Burrell agricultural single. Rear wheels about 40". I could have bought a nice roller for not much more but the logistics of moving that would be beyond me. I now have a 3 1/2 ton van it fits in a treat.
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  #317  
Old 05-17-2014, 02:51:34 PM
T James Ives T James Ives is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Heres another pic.
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  #318  
Old 05-17-2014, 04:55:01 PM
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

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This is our Terning engine. Kids and dog where also scaled down back then!
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Old 01-18-2017, 03:25:38 PM
Casemaker Casemaker is offline
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Default Re: Scale Models 1/4, 1/3, 1/2, ect

Minn 4 inch scale brand new listed for 10,000 pounds on uk ebay
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Old 02-15-2017, 10:28:38 PM
Sabercat7000 Sabercat7000 is offline
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Photo Re: Scale Models 1/4, 1/3, 1/2, ect

My brother an I own this little engine. We call it a "3/8" scale because its not based off of any specific engine, but has several traits of the large engines. I also attached a pic of a little project that I am close to finishing. It is roughly a 1/12 model of my uncle's 1912 FRICK contractors engine. It is made completely of wood and was made mostly by hand with some help from the wood lathe. Just thought someone may enjoy seeing new.

-Josh
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