ge_rik wrote: ↑Thu Aug 23, 2018 3:36 pm
It would be relatively easy to modify my hooks so they operated as per Triang tension-locks. I'm trying to visualise how the ring you mention operates. Any chance of a sketch?
Hi Rik,
Sorry it took so long to reply. The annual AMRA model railway show was on over the weekend and I was otherwise occupied. I still can't find the article I was looking for, so you are stuck with one of my Etch-a-Sketch drawings........
![Tri-ang delayed coupler.jpg](./download/file.php?id=4851)
- Tri-ang delayed coupler.jpg (73.51 KiB) Viewed 3435 times
(1) is the type of hook used by Tri-ang in the '60s. The Mk.III 'Tension Lock', so beloved of 4mm scale modellers.
(2) shows the hook drilled, the wire ring fitted and the back of the hook cut back at an angle. Which must have been fun with the coupler riveted in place on the model........
(3) shows the position of the ring when the couplers are pushed together away from a ramp.
(4) shows the hook in position if the couplers are pushed together with the hooks raised by a ramp. When pushed into position then the loco reversed away, the ring allows the hook to ride ove the loop. Cutting the back of the hook at an angle is important, otherwise it will snag.
(5) shows another Tri-ang coupler mod that allows a sprung wire to be used for uncoupling, instead of a ramp. The wire is a lot less visible, improving cosmetic track appearance, but harder to see for actual operation.
It might give you some ideas. I can't see how it would work with LGB inverted style hooks, as the ring that allows delayed uncoupling relies on gravity to operate.
Regards,
Graeme