Re: SP A-50-14 doors

Jeff Coleman

Tony, Thanks for getting me to pay attention! I've been studying
early tank car drawings for a few months and overlooked that K2
tripple valve!

- In STMFC@..., Anthony Thompson <thompson@s...> wrote:
Jeff Coleman wrote:
The term tripple valve has been used by railroad personal from the
time the AB valve was introduced. This is due to the control valve
being made up of three pieces. . .
Actually, it predates the AB brake; you will find it, for
in the 1928 CBC in a discussion of the K brake. (for those
along in the book, page 1006)

Tony Thompson Editor, Signature Press, Berkeley, CA
2942 Linden Ave., Berkeley, CA 94705
(510) 540-6538; fax, (510) 540-1937; e-mail, thompson@s...
Publishers of books on railroad history

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