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Quote from: crueby on August 13, 2022, 11:24:18 PMBefore getting the Ohio engine plans I had been looking at the Liberty Ship plans, that also looks like an interesting engine. Do you have any plans for one? I was able to find partial ones, but not enough to build from.Live Steam had an extensive series back in 1980 or so on the Liberty ships, including a lot of details about the engine. Quite a few detailed prints included, but not really a full set.I built a triple based on the well-known OB Bolton plans as modified by J. P. Bertinat, with some further modifications based on the Liberty ship drawings. No castings used. All bar stock.Gene
Before getting the Ohio engine plans I had been looking at the Liberty Ship plans, that also looks like an interesting engine. Do you have any plans for one? I was able to find partial ones, but not enough to build from.
So Chris notes...." Each section is flipped end for end from the one next to it, and also rotated some multiple of 90 degrees"Acknowledged that I have never worked on, or even seen such period engines, however the crankshaft pin orientation appears to provide the inlet/expansion sequence to cylinders to be........ 1 -> 3 -> 2 -> 4.....does this align with your thoughts?Maybe it's best to scrap this sketch and replace it with the nomenclature Cylinders [1 - 2 - 3 - 4], then....add a text note 1324 ....or 1/1 - 2/3 - 3/2 - 4/4.....Do we all understand this?...... Derek
An excellent book on naval equipment is Naval Machinery available at https://www.amazon.com/Naval-Machinery-United-States-Institute/dp/B000MLGOJI/ref=sr_1_1?crid=2I053BI74K4PQ&keywords=naval+machinery&qid=1660571863&s=books&sprefix=naval+machinery%2Cstripbooks%2C215&sr=1-1 The triple expansion battleship engine described in the book is more modern than your engine. However, you may be interested in the detailed description of all the parts. I think that engine described may be from the battle ship Texas, the only reciprocating engine battleship still in commission at the beginning of WW II. See https://www.asme.org/about-asme/engineering-history/landmarks/10-uss-texas-reciprocating-steam-enginesLohring Miller
There is probably an animation of this online somewhere for a four cylinder triple expansion
Quote from: crueby on August 15, 2022, 06:04:25 PMThere is probably an animation of this online somewhere for a four cylinder triple expansionThe Titanic had four-cylinder triple-expansion engines. There is quite a bit of stuff around the web related to the Titanic.Not the same engines, of course, but a good introduction for anyone reading this who does not need the correct details to build the BB-12 engines.Gene
Quote from: lohring on August 15, 2022, 03:09:12 PMAn excellent book on naval equipment is Naval Machinery available at https://www.amazon.com/Naval-Machinery-United-States-Institute/dp/B000MLGOJI/ref=sr_1_1?crid=2I053BI74K4PQ&keywords=naval+machinery&qid=1660571863&s=books&sprefix=naval+machinery%2Cstripbooks%2C215&sr=1-1 The triple expansion battleship engine described in the book is more modern than your engine. However, you may be interested in the detailed description of all the parts. I think that engine described may be from the battle ship Texas, the only reciprocating engine battleship still in commission at the beginning of WW II. See https://www.asme.org/about-asme/engineering-history/landmarks/10-uss-texas-reciprocating-steam-enginesLohring MillerLooks like a very interesting book - did a search over in Google Books, they have the 1946 edition that you can read/download! There are some things on the barring engine on the plans I have that I want to look up some more details on, also some things on the reversing engine. And thats just so far!Thanks for the tip!!Chris
Man, I'd love to see the real full size engine making revolutions for flank speed! Must have been magnificent.One thing I noticed in the video - the small end caps and nuts might be giving the crosshead guide bar studs and nuts a shave and a haircut.... I only mention it as item 22,394 to keep an eye on in the build!
Chris- do you have a link to the google addition you found?Thanks, Sid