... look at the two single slip arrangement here and suggest the lever frame sequence attachment.php?id=2726 Regards Dave Attachment: attach_2726_3322_rmwebsignallingdi agram.pdf 622 Last edited on 29 Aug 2018 19:18 by madscientist posted: 29 Aug 2018 23:17 from: Martin Wynne madscientist wrote: Martin you might have a look at the two single slip arrangement here and suggest the lever frame sequence Hi Dave, You have the diagram unusually arranged with the inner slip switches lying normal across the diamond: 2_291800_040000000.png It is more usually arranged like this: 2_291801_020000000.png Pulling lever 3 provides a crossover between the Up and Down Mains. Then also pulling lever 2 connects the Up Main to the Down Loop instead of the Down Main. Or also pulling lever 1 connects the Down Main to Up Loop instead of the Up Main. Pulling levers 1 and 2 instead of 3 provides a crossover between the two Loop lines. Here's a more conventional view: 2_300731_570000000.png Slip switches 1 and 2 lie normal for the slip road, so that pulling only 3 provides a main line crossover. However, ...