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bessytractor
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Joined: 31 Dec 2006
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Location: Chertsey, Surrey
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andysleigh
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Joined: 07 Apr 2007
Posts: 757
Location: guildford
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 Posted: Tue Nov 13, 2007 4:01 pm Post subject: |
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wow, thats interesting, now they just need a set of mamod style wagons to go with it 
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Chris
Steam Legend!!
Joined: 13 Jan 2007
Posts: 2314
Location: Hampshire
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| Posted: Tue Nov 13, 2007 5:00 pm Post subject: |
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Even does forward and reverse in the same way!
That is brilliant, I thought oscillating cylinders only existed in the world of toy steam.
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Chris
http://www.chrisfisher-photography.co.uk |
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Andy
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Joined: 05 Jun 2007
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Location: SHEFFILD
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| Posted: Tue Nov 13, 2007 5:48 pm Post subject: |
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Chris
Even does forward and reverse in the same way!
That is brilliant, I thought oscillating cylinders only existed in the world of toy steam.
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so did i never heard of the before thanks for posting learnt something new |
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johnreid
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Joined: 06 Sep 2007
Posts: 11117
Location: Friendship Indiana, USA
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| Posted: Tue Nov 13, 2007 6:18 pm Post subject: |
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Wonder who got to spin the wheels to get it moving? 
That was an very interesting read.
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Titan
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Joined: 19 Jul 2006
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Location: Derby
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| Posted: Tue Nov 13, 2007 6:32 pm Post subject: |
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Oscillators were quite often used in boats, even very large ones. I have a feeling that the SS Great Britain, the first propellor driven iron ship, had oscillating cylinder engines, and they were very common if not the norm for paddlesteamers of the time too.
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It's a Mamod Jim, but not as we know it!
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bessytractor
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Joined: 31 Dec 2006
Posts: 2432
Location: Chertsey, Surrey
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| Posted: Tue Nov 13, 2007 6:33 pm Post subject: |
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thought you might like, also heres another one, this time in 7 1/4" gauge. Note the video also.
http://www.stationroadsteam.co.uk/stock%20pages/3130/index.htm
I wonder on that big engine how good the draughting was. The Ossie cylinders couldn't have really had a fierce blast. Maybe you had to keep the blower on, or the blastpipe was very restricted. |
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bessytractor
Steam Legend!!
Joined: 31 Dec 2006
Posts: 2432
Location: Chertsey, Surrey
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| Posted: Tue Nov 13, 2007 6:35 pm Post subject: |
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| Titan wrote: | | Oscillators were quite often used in boats, even very large ones. I have a feeling that the SS Great Britain, the first propellor driven iron ship, had oscillating cylinder engines, and they were very common if not the norm for paddlesteamers of the time too. |
you are absolutely right, they were huge and operated at a steam pressure lower than our Mamods!!! I found a link to a ossie engine that powered twin screws using one cylinder directly coupled to both screws. |
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Steve_S
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Joined: 26 Aug 2006
Posts: 3313
Location: Leeds UK
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| Posted: Tue Nov 13, 2007 10:37 pm Post subject: |
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| That's a very interesting link. The Russian Ice Locomotive must have been an impressive sight. |
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bessytractor
Steam Legend!!
Joined: 31 Dec 2006
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Location: Chertsey, Surrey
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| Posted: Wed Nov 14, 2007 12:08 am Post subject: |
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| Steve_S wrote: | | That's a very interesting link. The Russian Ice Locomotive must have been an impressive sight. |
probably didn't work  |
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johnreid
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Joined: 06 Sep 2007
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Location: Friendship Indiana, USA
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| Posted: Wed Nov 14, 2007 1:56 am Post subject: |
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Wonder if they were known to be problematic in reversing
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Cranko
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Joined: 03 Aug 2007
Posts: 3245
Location: new Zealand
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| Posted: Wed Nov 14, 2007 3:54 am Post subject: |
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| Chris wrote: | Even does forward and reverse in the same way!
That is brilliant, I thought oscillating cylinders only existed in the world of toy steam. |
Same here, that is an eye opener  |
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steamyjim
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Joined: 27 Oct 2006
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Location: Pensford Somerset
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| Posted: Wed Nov 14, 2007 7:44 am Post subject: |
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Yes the SS Great Britain had a 4 cylinder occlisating steam engine. It worked at around 5PSI! The SS Great Britain Museum have recreated the engine, aulthough powered electricly its a great sight to see
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bessytractor
Steam Legend!!
Joined: 31 Dec 2006
Posts: 2432
Location: Chertsey, Surrey
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| Posted: Wed Nov 14, 2007 8:53 am Post subject: |
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| steamyjim wrote: | | Yes the SS Great Britain had a 4 cylinder occlisating steam engine. It worked at around 5PSI! The SS Great Britain Museum have recreated the engine, aulthough powered electricly its a great sight to see |
wish they'd made a real one  |
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steamyjim
Steam Legend!!
Joined: 27 Oct 2006
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Location: Pensford Somerset
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| Posted: Wed Nov 14, 2007 4:31 pm Post subject: |
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The hull being nackered cant take the weight of anthything as heavy as it ued to be. 
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