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Atticus-W — old drawing find number 2
Published: 2009-10-02 01:41:12 +0000 UTC; Views: 550; Favourites: 11; Downloads: 2
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Description
I was perusing some deep, dark, and abandoned files on my compy when I came across a few interesting tidbits! Turns out I’d scanned some “ancient” drawings a couple summers ago and entirely forgotten about them since. Looking back, I now recall only having scanned them after looking through some of my old (even then!) high school notebooks and finding some doodles worth saving. XDI believe this one to date to the 2005-2006 school year. A veritable mountain of a locomotive— albeit of the Consolidation wheel arrangement.
The huge flywheels on the sides give the engine extra momentum and the reduction gearing gives those low drivers bite like no one’s business. This thing is meant to PULL.(The “scaled” worker silhouette to the left doesn’t even do the drawing justice, judging by the height of the cab decks!)
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Comments: 32
Not a Climax, but freaking big, yes.
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Old, but fascinating. 
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Hehe, thanks.
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Welcome you are. Yeah, it really is fascinating sometimes looking back at the old art style and compare. :]
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wwwooowwww
AWESOMENESS Kind of a "Climax" with no front-rear crankshaft. I designed an engine quite like this that I think you should see!
Also the allan square link=win. is she broad gauge?
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Yes, verily much like a Climax! IN FACT, there were actual engines designed like this (though I'm not sure at all I knew it at the time XD). I shall have to show you.
And Allan square link...? XD I'm not sure if she's broad gauge, truth be told, but given her girth I certainly wouldn't deny the possibility outright.
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you dont know what an allan square link is?
basically-stephenson gear=outward radius-bent expabsion link
allan square link-stephenson gear but with straight expansion link and semi-overcrank to simulate radius movement
gooch valvegear=like stephenson but with REVERSED expansion link and full overcrank to simulate motion. not as efficient as stephenson, but saves alot of space.
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So it mostly depends on the shape of the link, and the existance or not of this "overcrank" (the definition of which eludes me entirely O.o).
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wait a second and I shall provide diagrams
GOOCH PHOTO: [link]
stephenson short-expansionlink diagram: [link]
Allan valvegear, note the overcrank that varies BOTH the expansion link AND radius rod to save armature space and to simulate full radial movement with supplimentation:
[link]
Gooch, note how expansion link is fixed and there is an unbalanced overcrank for the radius-rod. also note very important feature, expansion link has REVERSE curve than the stephenson because of the walschaerts fixed-radius problem. this solves the problem, but makes the valvegear less efficient because it lacks the combination motion.
[link]
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Ohohoho, I see... the only difference among them being whether the link, the radius rod, or both are being moved by what I've always known as the REVERSE crank or BELL crank.
(I think, for the record, that the valve gear on my engine above is still Stephenson's, despite my inattention paid to link shape. The link on this engine is lifted, not the radius rod.
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that can be an allans link too!
the overcrank I was reffering too was actually something driven side to side by the end of the expansion link and then transferred to lifting/lowering the radius rod as it travelled to simulate the combination motion, HOWEVER these diagrams seem to omit it!
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Oh, my bad then! I always kinda wondered why Stephenson's gear (at least on engines with outside valves) didn't hook up with the crosshead via a combination lever and link arangment ala Walschaerts and the rest...
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YES, note how there are TWO eccentrics. A walschaerts is only a gooch that has a fixed expansion link, and one of the eccentrics plays a magic act and dissapears and then transmogrifies into the combination lever. XDDDDD
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So the fact that the expansion link on the Gooch is suspended from the engine frame via a little arm is significant, I take it.
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I SAY sir. O.o
This is heavy. VERY heavy.
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YES. HEAVY IS TRAI......VALVEGEAR!!!
HOW COULD DIS HAPPEN!
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This defenantly gives the Demonic Interference a run for it's money on the "weird" scale.
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Oh, don't cut yourself short! This one still doesn't have a Shay engine on the side.
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Huh, no kidding! You shall have to post it.
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im keeping it under raps A) because the drawing is not refined and B) it may actualy be feasable for railroad usage.
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You call that up THERE "refined"?? XD
Nevertheless, your call of course. Certainly wouldn't want to loose patent rights.
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true, but I still would like to show it, but the mechanical details will be kept under raps
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HOLY HOLMAN HORROR AND FONTAINE FIASCO! THIS IS CRAZY SHIT ATTICUS! What the heck was going through your mind when you drew this?
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Blehehe, I don't even remember for sure. XD I've long liked the idea of using huge flywheels on vehicles as momentum "equalizers," though. I suspect this might have something to do with that (and, of course, a love for big steam!).
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