Search found 450 matches

by John Palmer
Wed Apr 17, 2019 2:17 pm
Forum: Track and Turnouts
Topic: Crossing Vee Jig
Replies: 26
Views: 2599

Re: Crossing Vee Jig

Martin's magic engine tells me that I have Vees to build soon in BH rail to these specs 1:x where x = 4.53, 5.08, 5.5, 5.58, 5.6, 5.7, 6.16, 6.25, 6.38 as well as the common values, 5, 5.5, 6, 6.5, 7 etc I have recently acquired a copy of "GWR Switch and Crossing Practice", which I have r...
by John Palmer
Wed Apr 17, 2019 2:02 pm
Forum: Jeremy Suter
Topic: Turning a chimney
Replies: 15
Views: 643

Re: Turning a chimney

First class treatment of this technique for machining a flare. It was also the subject of a 1995 article by Geoff Helliwell in MRJ 79, but Jeremy's photograph-rich exposition makes an excellent complement and suggests an alternative mounting arrangement for the jig. Geoff comments upon the importanc...
by John Palmer
Wed Mar 27, 2019 1:03 pm
Forum: East of Scotland
Topic: Burntisland at Alexandra Palace 2019
Replies: 16
Views: 1194

Re: Burntisland at Alexandra Palace 2019

Yes, I too am looking forward to having the opportunity to see the roundhouse/works complex - looks really good. Apart from St Margarets, were there any similar roundhouses on the NB system?

That CCTV arrangement looks like something we could use to advantage in the trainshed on Burnham!
by John Palmer
Wed Mar 27, 2019 12:56 pm
Forum: Signals and Control Systems
Topic: Arrangement of levers in a signal box (meandering into the Quintinshill disaster)
Replies: 22
Views: 1275

Re: Arrangement of levers in a signal box

[Edit - fully agree with Jim that traffic control should have been an immediate response to the needs of war] +1. Not addressed by Druitt. They were also perfectly capable of writing restrictive Rule Books then turning a blind eye to non-compliance providing the trains kept moving - until things we...
by John Palmer
Tue Mar 26, 2019 12:02 pm
Forum: Signals and Control Systems
Topic: Arrangement of levers in a signal box (meandering into the Quintinshill disaster)
Replies: 22
Views: 1275

Re: Arrangement of levers in a signal box

Howard, I fear I may have unintentionally come across as an earnest defender of railway company management. Actually, I am with you completely about the readiness of such managements to scapegoat their individual employees rather than looking to their own shortcomings. And it is refreshing to hear f...
by John Palmer
Tue Mar 26, 2019 1:21 am
Forum: Signals and Control Systems
Topic: Arrangement of levers in a signal box (meandering into the Quintinshill disaster)
Replies: 22
Views: 1275

Re: Arrangement of levers in a signal box

A bit of a deviation from the original topic, but since the Jim, the OP, has raised the question about collars I guess he won't mind a bit of thread drift. Post mortems on the accidents at Hawes and Quintinshill reveal the extent to which what was regarded as safe practice in railway working was (an...
by John Palmer
Fri Mar 22, 2019 12:56 am
Forum: Signals and Control Systems
Topic: Advice sought on point rodding routing
Replies: 7
Views: 497

Re: Advice sought on point rodding routing

Lovely photo Tim, Not knowing anything about the junction, it would appear there is one line less used (dull railtops) than the others - do you know why? Andrew The dull railtops are the line running into the up side platform at Ashton Gate station, reduced to siding status. Trackplan: http://brist...
by John Palmer
Mon Mar 18, 2019 11:43 am
Forum: Operating in Practice
Topic: Operational entertainment...
Replies: 34
Views: 5472

Re: Operational entertainment...

Photographic evidence suggests that at Bath Queen Square/Green Park the dining/kitchen cars on certain long distance trains took on gas from a gasholder truck which the station pilot had to position adjacent to the car in question. I have no idea whether such 'en route servicing' was exceptional, bu...
by John Palmer
Mon Mar 18, 2019 11:20 am
Forum: New Products
Topic: SCC - Sparkshot Custom Creations
Replies: 261
Views: 37813

Re: SCC - Sparkshot Custom Creations

Knuckles wrote:2 foot rule for me on most things.

And me. If only I could exercise the self-discipline to stick to it. Good post.
by John Palmer
Mon Mar 18, 2019 11:15 am
Forum: New Products
Topic: SCC - Sparkshot Custom Creations
Replies: 261
Views: 37813

Re: SCC - Sparkshot Custom Creations

What are the options for 3rd-party door furniture these days? I seem to remember etched T-handles and loop-handles being available back in the '90s. https://www.roxeymouldings.co.uk/category/63/4mm-scale-etched-accessories-by-roxey-mouldings/ . For a South of England prototype, all the variety you ...
by John Palmer
Mon Mar 18, 2019 12:26 am
Forum: Steam Locomotives
Topic: Wide-cab Drummond T9, non-superheated - allocations for last four
Replies: 5
Views: 329

Re: Wide-cab Drummond T9, non-superheated - allocations for last four

You've probably looked at this already, but http://www.semgonline.com/steam/t9class_dat.html gives some sparse data both on tender pairings and allocations. 307 and 312 are given as Stewarts Lane allocations in June 1924. First allocations given for the other two are August 1937: 302 at Eastleigh an...
by John Palmer
Sun Mar 17, 2019 1:05 am
Forum: Railway Buildings
Topic: Carriage loading docks
Replies: 74
Views: 3935

Re: Carriage loading docks

Even though Fowler's works were on the LMS (Midland), the strange-looking van behind the engine, which we might assume to be part of the job, is marked "NE". The photo was taken on 19th June 1925 I'm reasonably confident that that van is a Pooley & Sons' weighing machine adjustment va...
by John Palmer
Sat Mar 16, 2019 1:18 pm
Forum: Railway Buildings
Topic: Carriage loading docks
Replies: 74
Views: 3935

Re: Carriage loading docks

Well, if a BB1 is too big to remain within gauge on a Rectank then it's also going to be too big to do so on the F1, F3 and F4 road roller trucks, all of which had a railhead to bed dimension of 3' 6", which is only a fraction of an inch less than the same dimension on a Rectank (3' 6 and 5/8&q...
by John Palmer
Sun Mar 10, 2019 4:12 pm
Forum: Steam Locomotives
Topic: Locomotive fire irons
Replies: 14
Views: 928

Re: Locomotive fire irons

Probably an exceptional case, but the Kings, with their long, narrow fireboxes, required irons some 14 feet in length! Once you have put the dart through your firebed I can't see an alternative to swinging it through 180 degrees in order to return it to its place of rest on the tender. You certainly...
by John Palmer
Sun Mar 10, 2019 3:32 pm
Forum: Semaphore Signals
Topic: Mystery apparatus at Radstock
Replies: 8
Views: 911

Re: Mystery apparatus at Radstock

Steve, thanks for identifying Mel Roberts as the ultimate source of the information about the gainstroke device and, of course, my thanks too to Mel himself for this. Having taken a look at other S&D signalling layouts I have formed the view that Radstock West Down Distant must have been the lon...
by John Palmer
Sun Mar 10, 2019 2:09 am
Forum: Semaphore Signals
Topic: Mystery apparatus at Radstock
Replies: 8
Views: 911

Re: Mystery apparatus at Radstock

I passed this query on to to a friend with an interest in the S&D, who in turn circulated it around an S&D group. I offer the following response from a retired S&T engineer in that group. "It is a Gainstroke Lever, used where there is an excessive pull of wire to a remote signal. I...
by John Palmer
Thu Mar 07, 2019 4:27 pm
Forum: Semaphore Signals
Topic: close up photos of GWR tubular signals
Replies: 13
Views: 730

Re: close up photos of GWR tubular signals

Looks like the standard GWR contact enclosure, most probably for a repeater of the signal's aspect in the signal box. The lamp has no backlight blinder, but does have wires, so it appears that the signal is not visible from the box (or someone is being extra cautious) and has repeaters for the lamp...
by John Palmer
Thu Mar 07, 2019 1:59 pm
Forum: Semaphore Signals
Topic: close up photos of GWR tubular signals
Replies: 13
Views: 730

Re: close up photos of GWR tubular signals

Simon_S wrote:Just curious, what's the rectangular box with wires going in to it?

Looks like the standard GWR contact enclosure, most probably for a repeater of the signal's aspect in the signal box.
by John Palmer
Thu Mar 07, 2019 11:22 am
Forum: Semaphore Signals
Topic: Mystery apparatus at Radstock
Replies: 8
Views: 911

Mystery apparatus at Radstock

Having been delighted by the discovery that 223 of Ron Toop's S&D photographs have been put online at https://www.flickr.com/photos/midsomer-norton-south-station/sets/72157629882634822/page1 , I've been poring over a particular favourite shot of mine taken from Tyning's Incline at Radstock, and ...
by John Palmer
Mon Mar 04, 2019 3:15 pm
Forum: On My Workbench
Topic: Exactoscale Transfer Box - 4GB 112A
Replies: 2
Views: 412

Re: Exactoscale Transfer Box - 4GB 112A

Steve, I have instructions for an Exactoscale 2:1 single stage reduction box with product code GB003. Not quite what you asked for, but may assist. I've scanned this into pdf format but can't see a way of attaching the pdf file either to a private message or the forum-provided email page. If you thi...
by John Palmer
Sat Feb 23, 2019 12:42 pm
Forum: MarkS
Topic: 1P 0-4-4T chassis by Rumney
Replies: 38
Views: 5820

Re: 1P 0-4-4T chassis by Rumney

On the attached drawing extract I've marked in red my take on the cross-section of the ashpan that was originally intended, and in green the version finally adopted. Following my previous comment on the absence of a back damper, closer examination of the GA drawing also tells to me that the draughts...
by John Palmer
Wed Feb 20, 2019 11:39 am
Forum: MarkS
Topic: 1P 0-4-4T chassis by Rumney
Replies: 38
Views: 5820

Re: 1P 0-4-4T chassis by Rumney

On the kit, the ashpan seems to go too far back, and I thought that it was unlikely the main brake pivot rod went through the ash pan as this photo shows. (Note: the brake piston can be horizontal or vertical) A word of warning: unless you have a photograph proving me wrong (entirely possible!), I ...
by John Palmer
Sun Feb 17, 2019 5:03 pm
Forum: Wagons
Topic: Suitable paint for goods vehicles
Replies: 12
Views: 719

Re: Suitable paint for goods vehicles

I use Tamiya "IJN Grey" to represent LNWR goods grey. Ah but that begs the question "which IJN Grey?" The Naval Arsenals at Maizuru, Kure and Sasebo used different greys in ascending order of darkness. In addition the Yokosuka Naval Arsenal used a fourth gray which has been said...
by John Palmer
Sun Feb 17, 2019 9:56 am
Forum: Track and Turnouts
Topic: Modelling loose heeled switches in 4mm
Replies: 34
Views: 2421

Re: Modelling loose heeled switches in 4mm

The switch illustrated by Dave K causes me some concern, given the proximity of the tongue rail to the stock rail in the area I've indicated by a yellow ellipse: GWR Loose heel switch.jpg I would expect flange backs to strike the outer face of that tongue rail as they pass through - shades of Grayri...
by John Palmer
Sat Feb 16, 2019 1:42 am
Forum: Where to Find?
Topic: Brecon & Merthyr
Replies: 3
Views: 340

Re: Brecon & Merthyr

David, the Taff Vale & Dragon Models pricelist at http://www.taffvale.wales/price.php contains an entry for Brecon & Methyr transfers, but has them marked 'NLA'; presumably No Longer Available. However, there's also the following note: "Note: We have depleted stocks of transfers, now on...

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