Thanks for piping up, Keith. Your recommendation to make a moving model
from a book diagram is great one! And not at all confusing. I will do it
this coming weekend and will make it BIG so I can see it. The samples of
valve gear simulation graphic software that I have seen are commendable
effor
Harry et al.
Stephenson valve gear.
This is not quite correct. the original Stephenson valve gear consisted
of a loose eccentric and a driving collar and driving pin. The
"Stephenson" valve gear as we are referring to came about in 1842 when
a Draughtsman named Williams Employed by Robert Step
- Original Message - >
Steve wrote:
>I consulted a couple of ancient, dusty, and dog-earred tomes
> >both of them had good diagrams but lacked sufficient explanatory text
>
Then Harry wrote:
> I usually find the best old ones have such complex theories,
> explanations, and diagra
At 08:46 PM 8/31/04 -0700, you wrote:
>I consulted a couple of ancient, dusty, and dog-earred tomes, Harry,
>both of them had good diagrams but lacked sufficient explanatory text
Steve,
I usually find the best old ones have such complex theories,
explanations, and diagrams as to be overw
Steve,
Both the Accucraft and Roundhouse valve gears are a single
eccentric gear, using a slotted link for reversing, thier is no lap and no
expansive working possible, notching up only shortens the valve travel and
gives late admission and early closing..
This gear is fine for models whi
