[modeleng] Re: Couplings
- From: "Clif Walker" <clif.gwr@xxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Mon, 22 Nov 2004 18:01:43 -0000
Hi Peter and All,
Being nosey,what were you doing at the Plymouth track?Is it one of your
regular haunts?
Regards
Clif
----- Original Message -----
From: "Peter Sheppard" <peter.sheppard@xxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Monday, November 22, 2004 9:02 AM
Subject: [modeleng] Re: Couplings
> We had a case at the Plymouth track with a runaway. Again we were
> fortunate that this was an electric loco that derailed at the first curve.
>
> After that incident, as Track Marshall I updated the Risk Assessment
(sorry
> for swearing) and we brought into use a new rule that stated that
> locomotives and driving trucks must be attached by two separate and
> independent means. (That is they could share the same buffer beam etc,
but
> not the same fixing.
>
> The Hunslet I'm building has a centre "pin" type coupling to the driving
> truck, but also has a chain connection either side.
>
> With regard to couplings to passenger trucks in more general terms, I
> favour the centre pin, with multi-height options for the coupling bar. My
> stock is made to the 7.25" guidance (and that where the centre position
is)
> but not, but not everybody's is!
>
> Cheers
>
> Peter
>
> --------------------------------------------------------------------
> Peter Sheppard BSc (Hons) CEng FIEE FIRSE FSaRS
> Principal Consultant
> Lloyd's Register Rail Limited
> 5th Floor, 37-39 Corn Street
> Bristol BS1 1HT
>
> T: 0117 929 4443
> F: 0117 929 4554
> M: 07760 167 617
> E: peter.sheppard@xxxxxxxxxx
> --------------------------------------------------------------------
>
>
> -----Original Message-----
> From: Peter J. Cathcart [SMTP:peter.cathcart@xxxxxxxxxxxxx]
> Sent: Saturday, November 20, 2004 6:46 PM
> To: modeleng@xxxxxxxxxxxxx
> Subject: [modeleng] Re: Couplings
>
> Alan
>
> We use bars, as probably most clubs do. As for pins, we have a set of
pins
>
> with a spring semi-circle which is quite vicious if you're not careful.
It
>
> means, however, that once the pin is in it simply can't bounce out. This
> is
> critical. All locos are meant to be checked by the loco super for the day
> to make sure the couplings are totally secure.
>
> We have a video taken probably 20 years ago, by pure fluke, of a loco on
> the
> track with the loco parting from its driving carriage. We play it
> occasionally on club nights and it brings tears to the eyes! On the more
> serious side it made us realise what can happen and that is why we sorted
> suitable pins.
>
> Hilarity is the mother of invention.
>
> Peter
>
>
> ----- Original Message -----
> From: "alanjstepney" <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Saturday, November 20, 2004 6:11 PM
> Subject: [modeleng] Couplings
>
>
> It seems that theree is no universal, or even generally agreed, standard
> for
> the couplings between loco (tender) and driving trolley, and trolley and
> passenger cars.
>
> The most common one that I have seen is the flat bar, with pin dropping in
> hole in bar and into brackets fixed to each vehicle.
> However, the size of bar and pin seems to vary.
>
> Has anyone any information on couplings?
> What does your club use?
>
> What is used in other countries?
>
>
> alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> www.alanstepney.info
> Model Engineering, Steam Engine, and Railway technical pages.
>
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