My two main criteria ......, especially the latter!
Rik
Must admit that I did consider that as an option - particularly as the last version included delayed uncoupling which was attractive. However, I felt that the alignment of the couplings needed to be quite exact and they would be susceptible to damage in the garden environment. The (now larger) loop on my coupling helps to overcome any issues with hooks becoming bent in normal use. Also mine are compatible with LGB hooks and loops which means I can replace them piecemeal rather than wholesale.
Hi Tomtom_tom_go wrote: ↑Tue May 15, 2018 11:59 am They look better Rik.
Chemically blackening requires the metal is be clean (I normally go over with wet and dry paper).
Don't dunk the metal in the solution, use a brush and do several attempts cleaning the metal each time with water.
Thanks Tomtom_tom_go wrote: ↑Sun Jul 29, 2018 8:04 am I decant a small quantity into a jar and keep it until it stops being effective so to keep the original solution in it's pure form.
Repeated brushing and rinshing in water is effective because it's a gradual attack of the chemcial. You noticed when you just dunked it in the solution the colour would flake off (this can also happen if the part is dirty).
Hi Philip
You've come to the same conclusion I did when I had a think about this a couple of weeks ago.ge_rik wrote: ↑Thu Aug 23, 2018 12:39 pm So theoretically, the delay latches are a workable concept - but in practice they are not really viable. If I could get the delay latches to hinge upwards somehow and then drop down again to cover the hook then it would work - but it will make the hooks too complicated to construct and might end up interfering with the coupling and uncoupling process.
Hi GraemeGTB wrote: ↑Thu Aug 23, 2018 2:36 pm.
I've seen Tri-ang couplers modified with a simple swinginging wire ring that can drop down behind the bar when wagons are buffered up with the hooks raised. They can then be pushed into position and when the loco reverses, the ring swings over and covers the hook, allowing it to ride over the bar.
I imagine the reason LGB inverted their coupler was so it could operate under the centre buffers common in Continental NG practice. You could turn your couplers over I guess, so the delay latch could work by gravity, but then you'd need different buffing arrangements.
Regards,
Graeme
Rik,
Users browsing this forum: No registered users and 1 guest