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+--- Thread: Modification to uncoupled brakes (/showthread.php?tid=6552)
RE: Modification to uncoupled brakes - JonE - 25-08-2021
so the brass clips - they just give a slightly more stable surface to press against?
RE: Modification to uncoupled brakes - Tony Griffiths - 25-08-2021
Although more work, it's not necessary to drill the cross member. Providing you can make something to wrap around the brake cross-shaft hanger and register against the bottom flange of the cross member (and a screw thread to make the necessary setting) it becomes a removable mod. Even on the coupled braked cars, this is still a worthwhile thing to do. The pictures below show one way of doing it.
RE: Modification to uncoupled brakes - Howard Wright - 25-08-2021
(25-08-2021, 05:35 PM)JonE Wrote: so the brass clips - they just give a slightly more stable surface to press against?
Hi Jon
On the near side, yes. On the off side it “hooks” the brake cross shaft and stops it moving backwards.
In reality they provide additional support to the cross shaft brackets. These are quite weak and as Jim says, can flex.
Cheers
Howard
RE: Modification to uncoupled brakes - Tony Griffiths - 25-08-2021
(25-08-2021, 05:24 PM)Howard Wright Wrote:(25-08-2021, 05:14 PM)AustinWood Wrote: A similar one at the near side would prevent the bracket moving back.
watching underneath while someone presses the brake pedal is interesting. The movement on the brackets is surprising!
I have exactly that arrangement.
Cheers
Howard
I like the idea of a "pull" bracket on the near-side. Can you say exactly which pipe brackets you used?
RE: Modification to uncoupled brakes - Howard Wright - 25-08-2021
Hi Tony
Can’t remember the exact item but this is a similar one
https://www.ebay.co.uk/itm/28mm-Brass-Munsen-Ring-Pipe-Clip-Bracket-/111202236076?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=710-127635-2958-0
Note it’s 28mm which means you need the copper “bearing or shim” to bring it down to the 1” diameter of the shaft.
Cheers
Howard
RE: Modification to uncoupled brakes - Tony Griffiths - 25-08-2021
(25-08-2021, 06:51 PM)Howard Wright Wrote: Hi Tony
Can’t remember the exact item but this is a similar one
https://www.ebay.co.uk/itm/28mm-Brass-Munsen-Ring-Pipe-Clip-Bracket-/111202236076?mkcid=16&mkevt=1&_trksid=p2349624.m46890.l49286&mkrid=710-127635-2958-0
Note it’s 28mm which means you need the copper “bearing or shim” to bring it down to the 1” diameter of the shaft.
Cheers
Howard
Thanks, Howard. The thread is presumably BSP - perhaps 1/4?
RE: Modification to uncoupled brakes - Howard Wright - 25-08-2021
Hi Tony
No I think the ones I bought were metric 8mm. The small set screws were 5mm I think. Sorry I did this some time ago.
This eBay listing quotes the thread as being as being 10mm.
Cheers
Howard
RE: Modification to uncoupled brakes - AustinWood - 26-08-2021
I used a much cruder bracket to stop the shaft moving back.
Made from a modified exhaust clamp.
RE: Modification to uncoupled brakes - Tony Griffiths - 26-08-2021
(25-08-2021, 09:32 PM)Howard Wright Wrote: Hi Tony
No I think the ones I bought were metric 8mm. The small set screws were 5mm I think. Sorry I did this some time ago.
This eBay listing quotes the thread as being as being 10mm.
Cheers
Howard
Thank you for the details. I've ordered one and will see how it goes.
RE: Modification to uncoupled brakes - Ivangardiner - 29-08-2021
Nick's drawing shows the bolt resting against the bracket. Would this not be better than resting against the cross-tube?