Re: Mason 461, 0-4-4T or 0-4-2T
| April 15, 2017 01:03PM |
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Interesting photos, Bruce -
That must be one of the earliest uses of a Wahlshaerts style valve gear - or at least much closer to Wahlshaerts than Stephenson.
And very clever to have such long lifting links in order to minimize the effect of curves to 'notch her up' when running forward.*
OTOH, it's hard to imagine how a connection from the Johnson Bar to a Stephenson valve gear could have been accommodated.
- Gramps
* Or 'open her up' a notch or two in reverse.
That must be one of the earliest uses of a Wahlshaerts style valve gear - or at least much closer to Wahlshaerts than Stephenson.
And very clever to have such long lifting links in order to minimize the effect of curves to 'notch her up' when running forward.*
OTOH, it's hard to imagine how a connection from the Johnson Bar to a Stephenson valve gear could have been accommodated.
- Gramps
* Or 'open her up' a notch or two in reverse.
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488 stops for water at Los Pinos tank on closing day Oct. 1979. Photo courtesy Don Richter
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