[modeleng] Re: Unusual Valve Gear

Lee,

Very interesting and the only example I have ever seen of a Scotch Yoke 
being used on a locomotive piston.  The valve is of course underneath the 
cylinder and appears to be operated by a thin vertical lever attached to the 
main rod.  Unfortunately everything is hidden by the saddle tank.  Could 
have been something similar to Joy valve gear, but I ain't sticking my neck 
out to claim it is!

Jesse in chilly W. Tennessee

 Hi All
 Can anybody provide me with the name or information on the unusual valve 
gear on this neat little Loco engine built in the UK by R & W Hawthorn in 
1880 evidently it was based on a steam tram engine. I would like to find a 
bit more about how the valve gear worked would it have been similar to a 
beam engine
 http://i9.tinypic.com/2eal2ty.jpg
 I found this engine on Colin Usher's web site Ken Swan is building a 7-1/4 
gage version of it but the page hasn't been updated for a few months.

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