unclebobkt

-- Ron., - Are you planning to use the common or garden variety of OO gauge trackwork or will be it 00Finescale? -- Apologies for wasting your time - busy as you must be; I should have continued scrolling-DOWN and I would have read that you'll be using 00FS.. -- Bestest unclebobkt..

-- Shadow, - Yr. above posting noted, and u'stand. your caution. - I've re-run that particular web-site just a few moments ago and it came-up 'Clean.' to my a/virus. etc. systems.

-- Sandside, - A web-site at which you might like to look is - > http://www.ramsbottommrc.org.uk/ < - It shews some photos. etc. of BACUP wch. you might find of interest. --

Sandside, Apologies for high-jacking your topic:

Stationmaster, Thank you for your reply. Many, many years ago I read that the GWR. used to put a load of sleepers at a time into a pressure vessel, then put-in a qty. of creosote and finally INCREASE and hold the pressure for a period to ensure that the creosote was forced into the sleepers. At one time that rly. had commissioned some professor to conduct trials to find-out the optimum pressure to obtain a long life of the sleepers. The prof. found-out that too LOW a pressure didn't force the creosote into the sleepers, whereas too HIGH a pressure would tear-apart the sleepers' fibres and thus negating the creosote's preservative properties. This reading was s-o-o-o long ago that, regretably, I'm unable to quote any references, (apart from my own & amnesic memory.),.

-- How many times have I read that making models of railways is: 'Broad church.'? - If so then there should be space to discuss 'Logic.' as applied to allying power:signals:turn-outs:etc.. - Although it's truly donkey's years since I had anything serious to do with electrickery - back in the early/mid-sixties - when the Company for which I worked was still v. much involved with hard wiring, valves, (or 'Tubes.' as Americans call them), and electro-mechanical relays - plus the delights of drawing-up 'Logic tables.' to ensure that the relay switching switched-On or OFF what it was supposed to do. Nowadays I suppose so much easier with these new fangled computers. -- unclebobkt..

Ron., Thanks for yr. confirm'n. of 9'. 04". and for them working well with the other data. FYI. I shall be attempting to make a drg. to a scale of 1". = 8'., or 1/96th. if my maths. is to be believed; this scale will fit-in well with my Engrs'. rules wch. are divided down to 1/64th"., wch. I think is accurate enough; after all, this pjt. is more for my own amusement than for any serious modelling. Bestest - unclebobkt.. :-)

Ron., With reference to The Engineer of Feb. 13,1880 - page 124 and to the main drg. entitled: Roof of the new Central Station, Manchester.' - a query, if I may? >1.- Assumption - The roof is the UPPER segment of a clock/watch, with the Clear span line at Springing Level representing a line connecting 09.hrs. & 03.hrs., of 210.'00." ; the Crown is at 12hrs., 84'.00". from Springing Level; >2.- Data: Major Radii of 143'. 06"., minor radii of 54'.03".; >3.- Query: what are the two measurements shewn at approx. 11.hrs. & 01.hrs. ? To me they look like 5'. 04.". Your confirmation or correction would be appreciated. Bestest from unclebobkt..

Welsh Yorkie, Thanks for your reply. - One query, if I may: is thus new-fangled Creocote as effective a preservative as the olde Creosote? - Apart from wearing goggles to protect my eyes and the usual overalls I can't write that I ever bothered about a few splashes of creosote on my skin - nor its smell, either.; but that was back in the early 50s. - NO 'elf 'n' safety and/or Risk Assessments in those days; back home one was given a job and got-on with it.

Ron., Further to your above reply mentioning The Engineer. of 13 feb. 1880. and particularly the two pages mentioned; which I have read and shall re-read. Quite by chance, as one writes, on page 127. I noticed a review of the following book: 'Euclid and his modern rivals.' by Charles L. Dodgson, (1832-'98.); the author who is better known as Lewis Carroll! Apologies for this aside. Bestest - unclebobkt..

Ron., - Many thanks for yr. comprehensive reply above: posting #1,670. - appreciated! - Plenty of reading and then subsequent calculations - not that I'm a mathsmagician by any means! - they'll keep me out of mishchief for many a long day, (possibly a good thing? Ha!),. Bestest - unclebobkt..

-- Sandside, - When you have a spare moment - ha! - you might like to take a look-at: > http://www.davidheyscollection.com/ <; then look-at the LEFT hand side and scroll-DOWN to page 56 which has a few pictures of BACUP. - "Ichabod!". :-(

-- Ron., - A query, if I may. - Going back all the way to posting #1. you write that 'Dimensions were obtained from reference to historical erngineering drawings, (The Engineer, 13feb80.)'. - Living o'seas. I'm unlikely to be able to access the quoted copy of The Engr., so perhaps I might avail of your greater knowledge? - I've passed a few and happy hours availing of search-engine Google to look-at various & arched train-sheds' roofs; I see that M'chester. Centl. is quoted as having a span of 209.97.ft. and an height of 90.oo.ft.. - Looking-at your engr's. drg. how were the two loci for the radii of either side of the slightly flattened, (at the apex), & latticed arched ribs obtained? Is there some convenient formula with data span & height that fixes those points? Was it a type of trial & error? - I suppose that were all else to fail I could avail of the a/m. drg, and scale it to obtain those two points - but that doesn't strike me as either an elegant or an engineer's solution.

-- Sandside, - Concerning the WR. 'Fruit.' van, (W1342., if I read it aright?), - it being XP. should it not be fitted with screw couplings? I didn't see any flexible & vacuum pipes fitted, but possibly that's caused by the angle at wch. the photo. was taken? - But glad to see that you're getting rid of those Tension Locks and replacing them with more prototypical couplings - small but necessary improvements that add to the realism. - As you can see I'm catching-up so s-l-o-w-l-y, such a wealth of details, tips and suchlike to be absorbed to achieve a life-like scene, wch. you are doing to perfection!

-- Arthur,, - Thank you for your courteous and clarifying reply. - Clearly you have recognised that I am a newbie to this particular thread and still have a lot of reading to do before I come to present time. - In fact I have been OUT of England, effectively, since 1990.; and it was back in the early '50s. that I used creosote for the last time - hence my appearing to be somewhat out-of-touch with the latest edicts of 'elf'n'safety etc. etc. .

-- Being an avid reader of Private Eye, and especially of its Pedants' corner, may I enquire if those are air-vents shwn on the slate roofs? - Correct or some other explanation?

-- Creosote has been banned? Good heavens - so what does one use to preserve timbering? - The only alternative of wch. I know is 'Cuprinol.' - a ghastly green colour, if I mistake not? But then possibly that, too, has been banned, as I believe that it's copper-based? - You may see that I'm working my way through this thread, albeit slowly, (a couple or so weeks, to date.), - plenty of valuable info. and useful tips herein! Plus, of course, all of those delightful and other threads mentioned; the main lines and branch lines of railway modelling, (and of much else, besides.),.

-- One very small niggle - I hesitate to mention it but it has cropped-up in another RM Web thread - for your steel coal wagons, (page 60. - Goods yard surface.), the white stripe denoting the hinged end should not run as a diagonal but the UPPER end should coincide with the line of the hinge. - :-)