MHLR & SteamyJim 'debate'(!) on cylinders

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:12 pm

585 is totally crap price for a ossie...

steamyjim · Post by **steamyjim** » Wed Apr 16, 2008 5:15 pm

WHY DOES EVERYONE GET SO UPTIGH ABOUT OSCCILATING ENGINES!!!!!!!!!!!

If there made well there brilliant!

I saw an occilating engine recently that had variable stroke to stop vibrations

The face plates the cylinders run on moved up and down (controlled via an eccentric) but the cylinders occilated on this plates. It made the stroke longer then shorter. It was amazing

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:18 pm

steamyjim wrote:WHY DOES EVERYONE GET SO UPTIGH ABOUT OSCCILATING ENGINES!!!!!!!!!!!

If there made well there brilliant!

I saw an occilating engine recently that had variable stroke to stop vibrations The face plates the cylinders run on moved up and down (controlled via an eccentric) but the cylinders occilated on this plates. It made the stroke longer then shorter. It was amazing

REAL LOCOS DONT OSSILATE, THATS WHY. OSSILATORS ARE OLD TECHNOLOGY, NOT POWERFUL ETC. THE LIST GOES ON, WHY BUY A OSSILATING LOCO FOR £585 WHEN YOU CAN GET A MUCH BETTER SLIP ECCENTRIC EDRIG FOR A BIT CHEAPER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

steamyjim · Post by **steamyjim** » Wed Apr 16, 2008 5:31 pm

mhlr wrote:
steamyjim wrote:WHY DOES EVERYONE GET SO UPTIGH ABOUT OSCCILATING ENGINES!!!!!!!!!!!

If there made well there brilliant!

I saw an occilating engine recently that had variable stroke to stop vibrations The face plates the cylinders run on moved up and down (controlled via an eccentric) but the cylinders occilated on this plates. It made the stroke longer then shorter. It was amazing
REAL LOCOS DONT OSSILATE, THATS WHY. OSSILATORS ARE OLD TECHNOLOGY, NOT POWERFUL ETC. THE LIST GOES ON, WHY BUY A OSSILATING LOCO FOR £585 WHEN YOU CAN GET A MUCH BETTER SLIP ECCENTRIC EDRIG FOR A BIT CHEAPER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Oh dont they? Scroll to the bottom

http://www.catskillarchive.com/rrextra/odcuri.Html

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:33 pm

1. That's just a stupid loco - and a yanky one!
2. How come they dont use ossies on all steam locos then?!!!!
3. It's also a standard gauge loco...

I FEEL A POLL COMING ON!

steamyjim · Post by **steamyjim** » Wed Apr 16, 2008 5:33 pm

Edrigs aren't slip eccentric

And as for them not being powerful well that ain't true! The second engine on the SS Great Britain (that replaced Brunels engine) was infact a occilating engine. And that got the ship to Australia

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:36 pm

steamyjim wrote:Edrigs aren't slip eccentric

And as for them not being powerful well that ain't true! The second engine on the SS Great Britain (that replaced Brunels engine) was infact a occilating engine. And that got the ship to Australia

They are Jim... well, simulated stephensons link... wateva... And, how come most steam ships arent ossilators ay? Not powerful enough...

steamyjim · Post by **steamyjim** » Wed Apr 16, 2008 5:39 pm

mhlr wrote:
steamyjim wrote:Edrigs aren't slip eccentric

And as for them not being powerful well that ain't true! The second engine on the SS Great Britain (that replaced Brunels engine) was infact a occilating engine. And that got the ship to Australia

They are Jim... well, simulated stephensons link... wateva... And, how come most steam ships arent ossilators ay? Not powerful enough... ;)

Thats a totally differant vavle gear to slip eccentric!

Not the power Pete its the efficiancy an osscillator wastes so much steam

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:41 pm

it's power too. anyway, stop being such a know-it-all Jim, STOP CORRECTING EVERYTHING I SAY!!!!!!!!!!!!!

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:42 pm

steamyjim wrote:
mhlr wrote:
steamyjim wrote:Edrigs aren't slip eccentric

And as for them not being powerful well that ain't true! The second engine on the SS Great Britain (that replaced Brunels engine) was infact a occilating engine. And that got the ship to Australia

They are Jim... well, simulated stephensons link... wateva... And, how come most steam ships arent ossilators ay? Not powerful enough... ;)
Thats a totally differant vavle gear to slip eccentric!

Not the power Pete its the efficiancy an osscillator wastes so much steam

To give you a taste of your own medicine, it's not efficiAncy, its efficiEncy

mhlr · Post by **mhlr** » Wed Apr 16, 2008 5:45 pm

BTW OilyRag, I am sorry for bringing this off topic

I moved to the other topic;)

SillyBilly · Post by **SillyBilly** » Wed Apr 16, 2008 5:51 pm

steamyjim wrote:
mhlr wrote:
steamyjim wrote:Edrigs aren't slip eccentric

And as for them not being powerful well that ain't true! The second engine on the SS Great Britain (that replaced Brunels engine) was infact a occilating engine. And that got the ship to Australia

They are Jim... well, simulated stephensons link... wateva... And, how come most steam ships arent ossilators ay? Not powerful enough... ;)
Thats a totally differant vavle gear to slip eccentric!

Not the power Pete its the efficiancy an osscillator wastes so much steam

Calm Down guys!

I must point out, that if you were to remove the valve block from an Edrig and replace it with appropriate pipe work (not that you would), it would work like a slip-eccentric loco. It's only ressembelance with Stephenson's valve gear is the eccentrics!

steamyjim · Post by **steamyjim** » Wed Apr 16, 2008 5:55 pm

SillyBilly wrote:
steamyjim wrote:
mhlr wrote:
steamyjim wrote:Edrigs aren't slip eccentric

And as for them not being powerful well that ain't true! The second engine on the SS Great Britain (that replaced Brunels engine) was infact a occilating engine. And that got the ship to Australia

They are Jim... well, simulated stephensons link... wateva... And, how come most steam ships arent ossilators ay? Not powerful enough... ;)
Thats a totally differant vavle gear to slip eccentric!

Not the power Pete its the efficiancy an osscillator wastes so much steam
Calm Down guys!

I must point out, that if you were to remove the valve block from an Edrig and replace it with appropriate pipe work (not that you would), it would work like a slip-eccentric loco. It's only ressembelance with Stephenson's valve gear is the eccentrics!

So its a mix-match of differant valve gears then Will?

Or is it a certain type?

SillyBilly · Post by **SillyBilly** » Wed Apr 16, 2008 7:05 pm

It's not used often in the 'real world' I don't think. My dad used to be involved with a steam dredger boat (now scraped

:( ) and i belive the drag crane thingy on it had this sort of valve gear. Think of the valve block as a more complicated version of the mamod version, which makes it much cheaper to produce.

P.S. Do you like the title of your new post

?

mhlr · Post by **mhlr** » Wed Apr 16, 2008 7:16 pm

SillyBilly wrote:It's not used often in the 'real world' I don't think. My dad used to be involved with a steam dredger boat (now scraped :( ) and i belive the drag crane thingy on it had this sort of valve gear. Think of the valve block as a more complicated version of the mamod version, which makes it much cheaper to produce.

P.S. Do you like the title of your new post ?

I do indeed

laalratty · Post by **laalratty** » Wed Apr 16, 2008 8:23 pm

Can't belive this crazy argument has started, but for what its worth......
osscilators have less power, are more prone to leaking and are not used on prototype steam locomotives, and I agree that £585 is too much for what is an inferior technology, especially as i've heared that Ivors can be absolute pigs to control. Much rather get an Edrig which has slip eccentric valve gear but with piston valves in a reversing block, meaning that by reversing the steam flow the loco can be reversed, unlike my Milie which can't (but id rather have the millie still).
Now steamyjim and mhlr
STOP ARGUING!

mhlr · Post by **mhlr** » Wed Apr 16, 2008 8:26 pm

POINT MADE JIM! THANK YOOOOOOU

Chris Cairns · Post by **Chris Cairns** » Wed Apr 16, 2008 9:25 pm

as i've heared that Ivors can be absolute pigs to control

That was the original Ivers which were modified, and also provided with a retrofit steam valve option as well. I have no difficulties running my Iver (later version), and the Stuart YouTube video does not show any tricky control either.

steamyjim · Post by **steamyjim** » Thu Apr 17, 2008 11:19 am

Aye, thats right Chris

My prototype Ivers a bit of a pain but its not to bad

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MHLR & SteamyJim 'debate'(!) on cylinders

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