Help me decipher a map / diagram symbol

F

frogpipe

Yesterdayz Trainz Member
It is this:



It appears on pg 4 in fig 4 of The Union Switch & Signal Co.'s "A System of Automatic Block Signaling for Single Track Operation" dated 1911.

The book is full of semaphores naturally, and I can see in this symbol is a square ended or "Home" blade, but I don't follow what the triangle is in the mast.
 
Dating from 1911, the entire volume is in the public domain; perhaps you can scan the entire page with the illustration, and the couple of pages of surrounding text. It might be a semaphore, as you think, but without more context, I can't rule out some sort of fixed signage.

ns
 
It came to me in a PDF, but of course I can't find that ATM, only my printed version...

I can say that it's in the middle of a slightly complex 3 track wide yard, and appears to be in advance of a dead end track (spur?) so I was thinking it was some sort of diverging signal maybe....?


AH Found it!! http://www.rrsignalpix.com/pdf/USS_45_sec.pdf

Site has a TON of US&S pdfs on it.
 
I'm going to bump this, just once, in hopes that someone who knows just happened to have missed it in the TS12SP1 static.
 
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