Search found 105 matches

by bécasse
Sat Feb 20, 2021 7:28 pm
Forum: Track and Turnouts
Topic: Straight point levers for yard operation
Replies: 5
Views: 571

Re: Straight point levers for yard operation

Although this dimensioned drawing shows a shaped point lever rather than a straight one, it should be possible to extrapolate the dimensions of a straight lever from it - I would expect the maximum height above ground level of the lever when precisely upright to be the same in both cases. That isn't...
by bécasse
Fri Feb 19, 2021 1:14 pm
Forum: Signals and Control Systems
Topic: Signal box diagram for Rospeath Lane
Replies: 44
Views: 1827

Re: Signal box diagram for Rospeath Lane

17 (as the signal controlling the divergence into the sidings) needs a short subsidiary arm (without a ring), 4 would be a short arm with a ring (as shown). On the assumption that normal practice was followed and that there would be a pair of stacked discs at 10, they could be worked by a single lev...
by bécasse
Tue Feb 09, 2021 4:13 pm
Forum: iak
Topic: Working sprung axleboxes...
Replies: 15
Views: 957

Re: Working sprung axleboxes...

Nice! I think there was an 'S&B' as well, Phil - would that be it; I will check out the old mag stash later! Yes S&B, based at Norwood Junction in South London IIRC. They did point levers and, I think, chairs too. I suspect that it was their chairs that were used on the turntable on our Bem...
by bécasse
Sun Feb 07, 2021 10:05 am
Forum: iak
Topic: Working sprung axleboxes...
Replies: 15
Views: 957

Re: Working sprung axleboxes...

Who remembers the Peco wagons with sprung suspension? Smooth runners but awful bearings! I wonder with the advances in 3D printing whether it will soon be possible to find a material that would enable this approach to be brought up to date. They were moulded in nylon if I remember correctly and wit...
by bécasse
Fri Feb 05, 2021 1:54 pm
Forum: Trains: Model and Prototype
Topic: GER Society list of 4mm models
Replies: 33
Views: 1651

Re: GER Society list of 4mm models

It may have been last updated on 3/2/2021, but lists can't be copyrighted. The only exception is if they incorporate significant analysis by the originator which wouldn't be the case here, although it might have been if, say, loco fittings had been cross-referenced to the classes that carried them. ...
by bécasse
Thu Feb 04, 2021 1:54 pm
Forum: Trains: Model and Prototype
Topic: GER Society list of 4mm models
Replies: 33
Views: 1651

Re: GER Society list of 4mm models

" I (the archive) have Laxfield in storage (John Watson's layout in MRJ 0) having received it from Danny a few years ago. The plan is to refurbish it and assume the MSL survived long enough to run my Class 15 and a railbus as well as J15 etc." That sounds inspirational. I am most unlikely ...
by bécasse
Mon Feb 01, 2021 9:40 pm
Forum: Where to Find?
Topic: Wagon turntables
Replies: 14
Views: 926

Re: Wagon turntables

There is an interesting and useful thread here https://www.rmweb.co.uk/community/index.php?/topic/155024-12-wagon-turntable/ on RMweb. Diagrams in the thread demonstrate that you need 12' turntables which are actually 12'-1" in diameter in order to turn the odd 10'-0" WB wagon, although yo...
by bécasse
Mon Feb 01, 2021 1:06 pm
Forum: Track and Turnouts
Topic: Tie bars and FPLs in 1930s SR
Replies: 1
Views: 444

Re: Tie bars and FPLs in 1930s SR

FPLs were effectively made compulsory for existing installations by the 1889 Act (although railways were given a few years' grace to actually do the work) and they had been required in new work since the early 1870s. The LSWR was one of the most compliant railways so far as conforming to BoT ideals ...
by bécasse
Sun Jan 31, 2021 9:44 am
Forum: PeteT
Topic: Stanier 3P - Judith Edge Kit
Replies: 92
Views: 12241

Re: Stanier 3P - Judith Edge Kit

I know this feels wrong to many people but who are trying to model as close to the prototype as possible but we have to ask ourselves what we are trying to achieve. The mechanical proprieties of our track and chassis are really very different from the prototype e.g. we replace heavy leaf springs wi...
by bécasse
Sat Jan 30, 2021 12:34 pm
Forum: Tools and Techniques
Topic: Honeycomb soldering boards
Replies: 22
Views: 2164

Re: Honeycomb soldering boards

Yes. I have placed an order too, so thanks for the information and link.
by bécasse
Wed Jan 27, 2021 8:56 pm
Forum: PeteT
Topic: Stanier 3P - Judith Edge Kit
Replies: 92
Views: 12241

Re: Stanier 3P - Judith Edge Kit

I'd make a couple of comments which relate to the original diagram. Firstly I suspect that suitable coil springs are readily available as N gauge spare coupling springs, the cheapest seemingly being a set of 4 from Dapol for £ 1 (plus p&p), although I might be inclined to go for a pack of 10 Gra...
by bécasse
Wed Jan 20, 2021 2:19 pm
Forum: On My Workbench
Topic: 16T Weathering Experiments
Replies: 35
Views: 3042

Re: 16T Weathering Experiments

I have seen a colour photograph, goodness knows where now, that shows that the interior was painted grey (and hence presumably bauxite on the fitted or quasi-fitted ones). When carrying coal, a fair amount of black coal dust would tend to stick the sides (electrostatic effect?) until washed down by ...
by bécasse
Mon Jan 18, 2021 8:57 pm
Forum: Coaches and NPCS
Topic: Challenges - lamp irons and footboard supports
Replies: 10
Views: 1037

Re: Challenges - lamp irons and footboard supports

In my experience trying to fold up a long multifold etch accurately is well nigh impossible. My solution would be to fold up two lengths of suitable width strip, using a simple jig made from plasticard, and solder them together. The resulting short double-thickness link would probably not be unaccep...
by bécasse
Sat Jan 16, 2021 8:21 pm
Forum: Other Buildings and Scenery
Topic: Small hut at Swanage MPD
Replies: 17
Views: 1695

Re: Small hut at Swanage MPD

An accomplice of mine from Evercreech, who is also building a model of Swanage up to the road bridge, says he has seen drawings showing this as an oil store. If it was an oil store (and I have no reason to doubt it), it was used to store lubricating oil (and/or, just possibly, diesel to fuel a pump...
by bécasse
Thu Jan 14, 2021 12:12 pm
Forum: Layouts and Operations
Topic: Brimsdown-The last grand project.
Replies: 514
Views: 108473

Re: Brimsdown-The last grand project.

The worst example I have seen of this sort of thing occurred during the early days in my design career. We had a small batch of circuit boards etched but when populated with components and tested, one exhibited a most peculiar fault. There was a short between two adjacent tracks but all attempts to...
by bécasse
Thu Dec 10, 2020 9:55 pm
Forum: Standard Gauge Workbench
Topic: Queensbridge Road Wharf
Replies: 67
Views: 29078

Re: Queensbridge Road Wharf

I had been procrastinating on the road because I didn't want to press all those setts, but then it occured to me that I could use Wills sheet for most of it and only make clay setts at the corner. I think I will employ this technique in the yard as well. If a sheet can be used whole, I'll use it. I...
by bécasse
Wed Dec 09, 2020 9:48 pm
Forum: Trains: Model and Prototype
Topic: Adding operational interest to a engine shed layout
Replies: 15
Views: 1941

Re: Adding operational interest to a engine shed layout

Bath Green Park had only been a Western Region shed since 1958, pre-nationalisation it had (effectively) been an LMSR shed and between 1948 and 1958 it was a Southern Operating Area shed, so not a good example for learning about GWR practices - and the GWR was notorious for always doing things diffe...
by bécasse
Mon Dec 07, 2020 12:35 pm
Forum: Wagons
Topic: What 5-plank wagon is this and what livery should it be?
Replies: 18
Views: 2223

Re: What 5-plank wagon is this and what livery should it be?

I wonder if it had been, and perhaps still was to a limited extent, a gong post for communicating with the relevant signal box. I can't see a gong but the lever could well have been used to ring a gong in the box.
by bécasse
Thu Dec 03, 2020 12:22 pm
Forum: Painting and Weathering
Topic: Recommend a Primer
Replies: 22
Views: 6496

Re: Recommend a Primer

For extra security I often chemically blacken metals before any painting. Do others think this a good approach or not? I always use chemical blackening as an initial stage. I sometimes find with items in white-metal that it produces a finish which is more than adequate on its own, obviating the nee...
by bécasse
Fri Nov 27, 2020 10:08 pm
Forum: Track and Turnouts
Topic: Cast bullhead rail piece
Replies: 18
Views: 1495

Re: Cast bullhead rail piece

The cast manganese steel crossings at Borough Market Junction were, I think, only on the up roads. The photo seems to show the renewal of no.3 points and the crossing of the DL Charing Cross line over the DT Cannon Street line, right outside the box (invisible on the right), as these were always tra...
by bécasse
Fri Nov 27, 2020 8:15 pm
Forum: Track and Turnouts
Topic: Cast bullhead rail piece
Replies: 18
Views: 1495

Re: Cast bullhead rail piece

AFAIK bullhead track always used fabricated crossings and check rails made from normal rail. The crossings at the East end of Newcastle Central were apparently first replaced in cast manganese steel in NER days, presumably in bullhead, because of the level of wear involved. I don't know about any o...
by bécasse
Thu Nov 26, 2020 10:21 pm
Forum: Paul Townsend
Topic: Dartmouth progress
Replies: 27
Views: 8655

Re: Dartmouth progress

The tracks have to be concentric as otherwise it would be impossible to balance one or other gauge of locomotive on the table - and you should try turning an unbalanced loco!
by bécasse
Tue Nov 24, 2020 12:47 pm
Forum: PeteT
Topic: Stanier 3P - Judith Edge Kit
Replies: 92
Views: 12241

Re: Stanier 3P - Judith Edge Kit

True! Obviously any remotely sane person modelling both 4mm SG and 7mm NG would do it all on 16.5mm gauge track, to allow some common testing facilities etc. But my mustard is sturdy stuff so 18.83mm and 14mm it is! However, you are not alone, I first modelled in P4 in 1969 and O14 ten years later,...
by bécasse
Sat Nov 14, 2020 10:03 am
Forum: Tools and Techniques
Topic: Scale Length Conversions
Replies: 34
Views: 2486

Re: Scale Length Conversions

It doesn't convert from chains though, which is a blindingly obvious omission now I think about it -- now on my to-do list. Chains to (4mm scale) millimetres - just multiply by 264, or, for a quick rough answer doable in ones head, add three zeros to the number of chains and divide by 4 (the result...
by bécasse
Tue Nov 10, 2020 12:58 pm
Forum: Track and Turnouts
Topic: common crossing vee angles
Replies: 33
Views: 2953

Re: common crossing vee angles

Ben, you can run your Mac with a partition to allow a dual boot into either OSx or Windows. I run a small partition of the HD for windows in order to run Templot on a 2015 MacBook Pro. It will appear to run the fans a lot, some of the bios functions may not be so fine tuned, since there is not a he...

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