Yank 119
Member
I'm curious about the single lens signals I've seen in photos throughout the network.
Popularly known as searchlight signals here in the US, these neat devices are gradually being replaced in favor of less maintenance intensive tri-lens signals. Many of them date back to the 1940s, which is fair reason for replacement. They are still in widespread use (and were once the standard) in Canada, however.
I've noted that in Britain, many new LED single lens signals are popping up in various places. I'm also aware of the older incandescent signals on the GWML outside of Paddington, presumably installed as a result of the Ladbroke Grove incident.
My questions are:
Where are these being installed, and what are the reasons for their installation? Are they becoming "standard?"
Who are the manufacturers of the hardware?
Thanks for tickling my curiosity. Links to photos are always welcomed.
Joe
Statesboro, Georgia
http://www.railpictures.net/viewphoto.php?id=204157 <<< An example of searchlights in the US
Popularly known as searchlight signals here in the US, these neat devices are gradually being replaced in favor of less maintenance intensive tri-lens signals. Many of them date back to the 1940s, which is fair reason for replacement. They are still in widespread use (and were once the standard) in Canada, however.
I've noted that in Britain, many new LED single lens signals are popping up in various places. I'm also aware of the older incandescent signals on the GWML outside of Paddington, presumably installed as a result of the Ladbroke Grove incident.
My questions are:
Where are these being installed, and what are the reasons for their installation? Are they becoming "standard?"
Who are the manufacturers of the hardware?
Thanks for tickling my curiosity. Links to photos are always welcomed.
Joe
Statesboro, Georgia
http://www.railpictures.net/viewphoto.php?id=204157 <<< An example of searchlights in the US