81F Posted August 20, 2023 Share Posted August 20, 2023 I would like to replace the plastic wheelson my three Triang Liverpool and Manchester coaches and am wondering whether I should use split spoked wheels or plain spoked? Which is likely to be more AuthenticMany thanks for any suggestions Link to comment Share on other sites More sharing options...
Going Spare Posted August 20, 2023 Share Posted August 20, 2023 There is a thread on RMweb 'Split versus solid spoke wagon wheels' in which it is stated that split-spoke wheels pre-date solid-spoke because of the manufacturing techniques required so, on that basis, split-spoke seems more likely. Link to comment Share on other sites More sharing options...
What About The Bee Posted August 20, 2023 Share Posted August 20, 2023 Depictions by period artists, known good observers, show straight spoked wheels. Image after image, straight single spokes.Stephenson approved a drawing of a third class (blue) carriage. Straight spokes.The manufacturing problem is this. A cast wheel has three main components. The hub, the spokes and the wheel itself. When cast, the unequal mass of the spokes compared to the other components makes them cool more rapidly. This cooling causes shrinkage. Which sets up stress concentrations, cracking and breakage.R. Stephenson is noted as early as 1815, working on this problem with Dodds. Dodds' nephew, who apprenticed there, later patented a wheel arrangement in which the spokes were tangent to the hub and at an angle to the wheel.81F - this was a period of the grand railway experiment. Either choice is acceptable. Stephenson even patented a wheel that used tubes for spokes, the metal cast around them.But if you want to match the imagery, straight spokes it isBee Link to comment Share on other sites More sharing options...
What About The Bee Posted August 20, 2023 Share Posted August 20, 2023 Link to comment Share on other sites More sharing options...
What About The Bee Posted August 21, 2023 Share Posted August 21, 2023 Here are some other, period wheel arrangements. A chaldron on the Stockton and DarlingtonA utility wagon on the Bolton and LeighA sampling from Wood, Practical Treatise, 1838As a reminder, all images can be zoomedBee Link to comment Share on other sites More sharing options...
What About The Bee Posted August 21, 2023 Share Posted August 21, 2023 Armengaud shows split spoke wheels. The railway is not specified. There are some characteristics of the LMR, others not.Note the steps are very close to the Hornby presentation. Link to comment Share on other sites More sharing options...
What About The Bee Posted August 21, 2023 Share Posted August 21, 2023 Caledonian LMR28 is a very unusual locomotive. Vertical pistons, and odd connecting rod arrangement. On my make list, since Hornby will never manufacture it.Caledonian is drawing a standard first class carriage. Caledonian only ran on the LMR, so we know this is an LMR carriage. The book it appears in contains several LMR images. I emphasize this LMR association.Note that the spokes are simple straight spokes. Here is the interesting part for you 81F. The artist took the time to depict the unusual piston arrangement. Would he not have sketched in any odd spoke arrangement too? I think the answer is, yes, he would, were it there.I will repeat my earlier answer. You can actually and reasonably pick anything that you please. But in general, the simple, straight spokes were depicted for LMR carriages Bee Link to comment Share on other sites More sharing options...
81F Posted August 21, 2023 Author Share Posted August 21, 2023 Many thanks all,Although nothing much to do with coach wheels my researches found this site:https://www.newton-le-willows.com/?p=1751Which is mostly about Lion 1979 rebuild/restoration but it does mention some interesting additions made by the LMS in 1929. As a result I am thinking that I should be asking about the replica coaches build for the LMR centenary rather than the originals!In which case I am probably looking a straight coaches but a combination of bad eyesight and the quality of some of the photos on the web means that I am not sure. Link to comment Share on other sites More sharing options...
What About The Bee Posted August 21, 2023 Share Posted August 21, 2023 The centenary carriages used straight spoked wheels 81F. Photographs are clear enough for me.Bee Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now