They're very neat and quite cheap. Only problem is that I have a reverse loop on my railway which I use from time to time and so some stock would end up the wrong way round. Pity, I like the delay option for uncoupling.philipy wrote: ↑Fri May 04, 2018 10:42 am An inverted version of the Slaters one but with the 'body' members slghtly wider apart to allow some sideplay for the hook, wouldn't be difficult to knock up and you could then make the face of the buffer as wide as you need to prevent buffer lock.
Edited to add: There is a beastie called a Dingham Coupler. I admit that I've no experience of it but it might help either directly or simply to give you ideas.
http://www.dingham.co.uk/7mm_coupler.htm
Rik