Search found 589 matches

by John Palmer
Fri Nov 01, 2013 6:02 pm
Forum: Chassis and Suspensions
Topic: Split axle jig
Replies: 22
Views: 8963

Re: Split axle jig

I originally used a jig similar to that shown by Ealing, but in time my doubts grew as to whether I was producing axles that were sufficiently 'true'. So I took a chunk of brass, set my milling attachment at 45 degrees and milled three 'V' slots across it thusly: Split axle curing jig.jpg This shoul...
by John Palmer
Tue Oct 29, 2013 7:32 pm
Forum: Chassis and Suspensions
Topic: 1366 chassis
Replies: 12
Views: 5286

Re: 1366 chassis

CSP/Agenoria apparently have a complete kit for the 1366 class in the pipeline for Jan-Feb 2014 - see the final entry in the 'Upcoming kits' panel at http://cspmodels.com/index.php. Not sure that helps much if you only want a chassis kit.
by John Palmer
Tue Oct 29, 2013 7:12 pm
Forum: Layouts and Operations
Topic: Glenmutchkin - Water Tanks
Replies: 184
Views: 63747

Re: Glenmutchkin - Cutting and Shutting

Have you thought of making a pop on/pop off facia to the lighting pelmet secured with velcro? You would need to find somewhere to put this for transport of course, but I do get a fair amount of damage to my facias - partly because I have not cracked how to store or transport them, they being an awk...
by John Palmer
Mon Oct 28, 2013 2:28 pm
Forum: Layouts and Operations
Topic: Glenmutchkin - Water Tanks
Replies: 184
Views: 63747

Re: Glenmutchkin - Cutting and Shutting

Nothing wrong with welded baseboard supports! - our old Burnham layout uses electrical conduit pipe welded into 'H' shapes for its legs. FWIW, I am arranging the enclosure panels for one side of my present layout to do double duty as the lighting rig/pelmets, as per the attached schematic. The lette...
by John Palmer
Sun Oct 20, 2013 12:34 pm
Forum: Where to Find?
Topic: Books on signalling
Replies: 3
Views: 3325

Re: Books on signalling

IRSE Green Booklets in .pdf format are also available from the IRSE Australasia's website: http://www.irse.org.au/images/stories/Knowledge/Green_Book/ . Possibly these include different editions to those available via Keith's link. The IRSE Australasia site also gives you online access to the IRSE's...
by John Palmer
Sat Oct 05, 2013 5:35 pm
Forum: Track and Turnouts
Topic: Very detailed maps of 1890s London now online
Replies: 11
Views: 5685

Re: Very detailed maps of 1890s London now online

North end of Ludgate Hill Station.
by John Palmer
Fri Oct 04, 2013 6:45 pm
Forum: Track and Turnouts
Topic: Very detailed maps of 1890s London now online
Replies: 11
Views: 5685

Re: Very detailed maps of 1890s London now online

For me, this site supplied some fascinating insights into the construction of Mallaig Extension. West Highland devotees might care to feed in the following settings: Gazetteer: Mallaig County: Inverness For the overlay: Category: Scotland Map Group: OS Six Inch, 1892-1905 Voila! The Extension under ...
by John Palmer
Fri Jul 12, 2013 1:29 pm
Forum: Wagons
Topic: Nostalgia Time
Replies: 4
Views: 2581

Re: Nostalgia Time

I have a rather hazy memory of paying a visit to ERG's premises, which were located at Roumelia Lane in Boscombe, rather than Bournemouth proper. As I recall, there was no street-facing access; instead you went to the rear of a fairly substantial terraced building and descended a flight of steps int...
by John Palmer
Fri Jul 05, 2013 11:07 pm
Forum: Tools and Techniques
Topic: Rivet forming press
Replies: 15
Views: 10096

Re: Rivet forming press

You may be thinking of Dick Ganderton of Verwood. This link may help: http://www.jimmcgeown.com/FAQ%20Answers%20pages/FAQ%20Answer%2015%20Luxury%20Tools.html
by John Palmer
Tue Jul 02, 2013 1:24 am
Forum: Semaphore Signals
Topic: Double Block Working
Replies: 29
Views: 14869

Re: Double Block Working

The problem is amplified by, as I understand it, the braking performance of a 240 ton train hauled by a 120 ton loco being significantly worse than that of a 480 ton train hauled by the same loco. (Need to trawl through my books to support this statement!) Regards Andrew In connection with accelera...
by John Palmer
Fri Jun 28, 2013 1:55 pm
Forum: Semaphore Signals
Topic: Double Block Working
Replies: 29
Views: 14869

Re: Double Block Working

I have posted an enquiry about instructions for working the high speed trains on the LNER forum and hope that this will bear fruit. Noel, thanks, your correction makes better sense of your original post. The terms of Block Reg. 13 suggest to me that there are not many circumstances in which the sign...
by John Palmer
Wed Jun 26, 2013 12:46 pm
Forum: Semaphore Signals
Topic: Double Block Working
Replies: 29
Views: 14869

Re: Double Block Working

Les, you beat me to it in posting that link to the Memories of a Railwayman blog. Apart from the useful description of double block working the site's masthead includes a wonderful picture of Empire of India prior to departure from Kings Cross with the down 'Scotsman', with the bonus of one of the 1...
by John Palmer
Wed Jun 26, 2013 1:09 am
Forum: Semaphore Signals
Topic: Double Block Working
Replies: 29
Views: 14869

Re: Double Block Working

Am I right in thinking that there's a radical difference between the two methods of working under consideration, viz. (1) acceptance only after 'Train Out' received for preceding train and (2) acceptance only after obtaining acceptance from the box in advance? So far as I can see, the second of thes...
by John Palmer
Mon May 20, 2013 7:35 am
Forum: Other Workshop Practice
Topic: Photoetch artwork conversion - hard copy to dwg
Replies: 8
Views: 7110

Re: Photoetch artwork conversion - hard copy to dwg

:oops: Embarrassing not to have noticed that - thanks, Martin. <edit> This may help to form an idea of Wintopo's capabilities. K2 raster-vector-CAD.jpg 150 dpi scanned image of Roger Farrant's 7mm drawing of a K2 from March 1975 Model Railways. Processed through Wintopo Freeware with NO polyline red...
by John Palmer
Mon May 20, 2013 1:31 am
Forum: Other Workshop Practice
Topic: Photoetch artwork conversion - hard copy to dwg
Replies: 8
Views: 7110

Re: Photoetch artwork conversion - hard copy to dwg

Wintopo appears to be a very powerful vectorising tool. Using the freeware version, I successfully saved a complete drawing using unaltered 'one touch vectorisation', but the default setting lent the vectorised output a sort of 'Mayan art' quality; it just picked up too many vectors! Next I tried va...
by John Palmer
Sat May 18, 2013 11:00 am
Forum: Track and Turnouts
Topic: Slattocks Junction Stretcher Bars
Replies: 17
Views: 9016

Re: Slattocks Junction Stretcher Bars

If anyone can supply a sharp close-up of the NBR FPL arrangement I shall be very grateful, but in the meantime the best I can do is refer you to the foreground of a picture of a train at Kielder Forest: http://www.time-capsules.co.uk/picture/number2030.asp . Similar FPL’s can be seen in photographs ...
by John Palmer
Sat May 18, 2013 12:13 am
Forum: Track and Turnouts
Topic: Slattocks Junction Stretcher Bars
Replies: 17
Views: 9016

Re: Slattocks Junction Stretcher Bars

Howard, many thanks for posting those further photos. What a huge improvement a lick o' paint brings about – love the variation in tone and colour between rail and chairs in the vicinity of the double slip's stretchers! So, if I'm following your thesis correctly, the two, no the three principal ingr...
by John Palmer
Fri May 17, 2013 12:58 am
Forum: Chassis and Suspensions
Topic: Split axles in use
Replies: 10
Views: 7979

Re: Split axles in use

Good to see another combination of split axle/CSB chassis construction. Having previously relied on equalising beam suspension I was impressed by how much easier it was to apply CSB suspension to a chassis making use of split axle current collection. When applying shorting wires to the rear of spoke...
by John Palmer
Fri May 17, 2013 12:10 am
Forum: Track and Turnouts
Topic: Slattocks Junction Stretcher Bars
Replies: 17
Views: 9016

Re: Slattocks Junction Stretcher Bars

Howard, I greatly enjoyed our chat at Scalefour North and was particularly impressed by the escapement mechanism you were demonstrating as the 'penultimate' stage of a drive to operate switches. I had been fruitlessly turning over in my head designs for such a device before seeing yours, and I hope ...
by John Palmer
Sat May 11, 2013 12:50 am
Forum: Hardwicke
Topic: Midland Spinner
Replies: 7
Views: 5499

Re: Midland Spinner

Ealing wrote:Possibly the most elegant locomotive ever built?

Challenge accepted.
Stirling_No__1_on_the_NRM_turntable_-_geograph_org_uk_-_1684419.jpg
Stirling_No__1_on_the_NRM_turntable_-_geograph_org_uk_-_1684419.jpg (134.79 KiB) Viewed 5283 times

Image Copyright Peter Langsdale. This work is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic Licence.
by John Palmer
Mon Apr 22, 2013 8:59 am
Forum: Mark Tatlow
Topic: A Highland Miscellany
Replies: 300
Views: 113425

Re: A Highland Miscellany

There was certainly an occasion in 1953 when both trains arriving at Ardlui for a 'meet ' were longer than the passing loop. But that was on the West Highland.
by John Palmer
Wed Apr 10, 2013 4:17 pm
Forum: Chris Mitton
Topic: Coaching Stock on Stowe Fen
Replies: 22
Views: 12338

Re: Coaching Stock on Stowe Fen

Thank you very much for posting this welcome news! I'm particularly pleased to note the re-run of the NB fish vans, of which I could use several.
by John Palmer
Wed Apr 10, 2013 4:09 pm
Forum: Signals and Control Systems
Topic: Help sought to check locking design
Replies: 12
Views: 7362

Re: Help sought to check locking design

upon under-board steel rods 3mm in diameter. That does seem like considerable overkill, I use standard model aircraft control rods for this purpose, about 1.5 mm dia. They have been perfectly satisfactory on runs up to a metre and have the advantage that the rods, cranks and clevis are all off the ...
by John Palmer
Tue Apr 09, 2013 11:35 pm
Forum: Signals and Control Systems
Topic: Help sought to check locking design
Replies: 12
Views: 7362

Re: Help sought to check locking design

Howard, the diagram is in fact a near-exact copy of that for Mallaig, which features both Outer Home and Advanced Starting signals. From memory, all the passing loops on the Mallaig Extension featured only Home and Starter, but I agree that it would be hard to do without the two additional signals a...

Go to advanced search