Re: Mallets


PeterH5322@...
 

In a message dated 4/30/99 12:10:56 AM, HOsteam@onelist.com writes:

<<
Volume/pressure is self-regulating. In the original design, the
high-pressure and low-pressure cylinders are made to proportions which
will represent the desired match - usually half the pressure in the l-p
system as in the h-p, but if there were an imbalance, the actual working
pressure in the l-ps would simply rise or drop to equalize with the
volume . . . no problem.
Some Mallets could also be started by directing high-pressure steam into the
low-pressure cylinders.

Perhaps the plumbing necessary to accomplish that function was helpful in the
conversion of these Mallets to simple articulated late in the career of those
locomotives.

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