Delph - Signals trial fitting
The signals made for me by Steve Hewitt (of Liverpool Lime Street fame) were collected last week and have been trial fitted to the layout and the operating mechanisms and contol units fitted and wired. Steve has made a wonderful job, as seen in his semaphore signals thread in the forum section of this site.
The following photos show the signals in situ and the operating bits fitted. The signals have since been removed and refitted into their carrying frames for safety during further layout construction.
First, we see the signals in their layout locations, starting (appropriately) with the starter signal.
Next the miniature semaphore ground signal controling the exit from the loop& yard into the running line.
Coming in the other direction, we have the home signal. This is a two doll bracket controling entry into the platform road or into the loop/yard. This signal is seen from both sides.
Now some shots of the under-board operating mechanisms and control units. The operating mechanisms are servo motors and the contol boards are made by GF Controls. I believe they are based on those developed for Lime Street and they each control two servos and incorporate a switchable bounce facility and simple adjustment of the on and off arm positions. The bracket signal unit incorporates two servos to operate the two arms. The others have one each.
Here's the arrangement for the bracket signal.
As I explained previously, space for the yard ground signal mechanism is very tight and I had to re-route a wiring bundle to make room for it. This shot shows just how tight it is. The original route for the wiring was straight through the two redundant wiring clips (fixtures visible either side of the mechanism, as is the re-routed wiring).
In contrast, the started signal servo has loads of room!
Finally, heres the control board for the starter and yard exit signals. Both controllers have been located so the arm postion adjuster pots can be reached easily from the base-board edge - a very sound suggestion from Steve.
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