Templot Club Archive 2007-2020
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posted: 7 Feb 2015 20:00 from: robin hood
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Hi all, Started a new track plan but on printing a trial page I found that the turnout timbers gradually angled and are unsuitable for the LNER. I expanded the information panel and found that the default setting was "equalized incremental timbering". I attempted to change it to square-on timbering. On activating the edit button you can delete the existing default setting of the timbering and type in "square-on timbering" and then press ok but the panel still shows the default setting. In the edit mode it does say right click for options but I've tried several and none appear to work. Any assistance would be greatly appreciated. Robin |
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posted: 7 Feb 2015 21:21 from: Martin Wynne
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Hi Robin, The edit facility on the info panel is simply so that you can edit out what information you want before copying it as text to somewhere else. To change the timbering settings for the control template, use the real > timbering > menu items. regards, Martin. |
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posted: 8 Feb 2015 11:16 from: robin hood
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Hi Martin, Thanks for the info. Regards Robin |
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posted: 8 Feb 2015 11:55 from: Martin Wynne
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robin hood wrote: Started a new track plan but on printing a trial page I found that the turnout timbers gradually angled and are unsuitable for the LNER.Hi Robin, I don't think you should assume that equalized timbering is unsuitable for the LNER. Although the company drawing offices typically produced standard drawings showing one style or the other, the actual timbering on a specific site is normally determined by the local layout, conditions and traffic patterns. Here's some text that I have posted a few times: Timbering style is a frequently asked question, because there is no clear answer. Generally speaking, equalized timbering was the norm in the pre-grouping period (before the 1920s), and square-on timbering is the standard now. Between then and now you get both. The change was gradual and varied in pace according to local practice. For much of the post-grouping steam era it would be common to see square-on used for main running lines, with older equalized timbered turnouts predominating in yards, sidings and branch lines. There are several factors at work here. The main reasons for using a square-on timbering style are: 1. The main road is "stronger" in the sense that it is held to gauge with timbers at right-angles to the rails. This is always desirable for robust track. If timbers are skewed to the rails there is a much greater risk of gauge-spread, especially on curves. So if the main road of a turnout is a running line (and especially if it is on a curve), and the turnout road is a low-speed crossover or branch line, it makes sense to use the square-on arrangement to concentrate strength in the more heavily used road. On the other hand, if both roads are running lines of similar importance, you would want to have some strength in both roads and an equalized timbering arrangement is then the best option. 2. Where pointwork is prefabricated in the works, dismantled and delivered to site as a kit of parts, with the rail-fixings already attached to the timbers, it is much easier to set out the timbers at the correct specified spacings if the timbers are all parallel to one another and square to the main rails. 3. For modern mechanised maintenance and tamping equipment, it is essential that the timbers are parallel to one another and square-on. The disadvantage with square-on is that some rails are at a significant angle to the timbers. The chairs or baseplates at the V-crossing must fit the rails at the specified positions. This means that it can be difficult to position square-on timbering to support all the rails in the proper place, and occasionally extra timbers or wider ones have to be used to ensure that no chair screws are too close to the edge of a timber. Which explains why equalized timbering was used in the first place, in the days when pointwork was laid out and assembled on site by the local gang. It makes it much easier to get all the chairs properly supported, and it doesn't matter too much if an odd timber is an inch out of position. It also means that the two check rails are both in the same position relative to the V-crossing (frog) for traffic on each road. Nowadays check rails are quite long, so that doesn't matter so much. Diamond-crossings and slips are always equalized, as it is practically impossible to get all the K-crossing rail-fixings in the correct place if the timbers are square-on to one of the roads. This means that the adjacent turnouts, in for example a ladder or double-junction, may also be equalized for convenience of layout. Complex junctions and station throats often require considerable ingenuity in laying out the timbering, to ensure that all rail-fixings are in the correct place on the rails, and properly supported, and that all timbers can be tamped. The timbering design of a complex layout was something of a black art. And with Templot's Shove Timber functions you can learn all about it!  Having decided on square-on or equalized style, you then need to decide between in-line or centralized timber ends. More about that in this group message: http://groups.yahoo.com/group/templot/message/773 There is also a lot of further discussion about timbering in this group sequence: http://groups.yahoo.com/group/templot/messages/2053?expand=1 Apart from equalized-incremental and square-on, Templot also has two further timbering styles - equalized constant and angled-on. These are intended for use when you are using superimposed partial templates, as an aid to subsequent timber shoving. See also: topic 2460 - message 16759 • p.s. If Templot started up using equalized timbering as the default, it means that you are not using the latest Templot2 program. If so, I strongly recommend that you do, because there are dozens of new features and improvements. Templot2 is free to use, and a completely separate program from the previous version. You can have both programs on your computer and use whichever you prefer at any time: Download: message 10771 List of all Templot2 changes: topic 1511 - message 9413 regards, Martin. |
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