Templot Club Archive 2007-2020
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posted: 18 Jun 2010 22:34 from: dave turner
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Hello I find that most of the track combinations that I require cause clashes of sleepers between templates which cannot be simply resolved by rolling sleepers. Clearly the resolution is to use the shove timbers functions, however I have not been able to find a source of information/ set of rules for setting out sleepers prototypically. Can anyone point me in the right direction please? Thanks Dave |
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posted: 19 Jun 2010 11:01 from: Martin Wynne
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dave turner wrote: I find that most of the track combinations that I require cause clashes of sleepers between templates which cannot be simply resolved by rolling sleepers.Hi Dave, We've been here before.  See: http://groups.yahoo.com/group/templot/message/8313 and subsequent discussion. To get that message into the site search for reference, here it is again: _________ I can see that the 'shove timbers' function dependsIf only! Timbering a complex formation is something of a black art. When you think you know something about it, along comes a photograph showing the exact opposite. Some guiding principles: Special switch and crossing chairs can fit the rails only at pre-determined positions. They must have some timber under them. This often means using more timbers, or wider timbers, so that the chairs are firmly supported and the chair screws are not too near to the edge of a timber. Timbers should be as near as possible at right-angles to the rails. This creates the strongest track, able to resist gauge-spread. This is especially important on curved tracks. Timbers must be able to be packed up level if necessary. This means that the gang must be able to dig out under them, insert jacks, and place fresh ballast. This is very difficult to do if timbers are very close together side by side or end to end. Rail joints are the weakest parts of the track. Timbers on each side of a rail joint should be as close together as possible. This generally means joint timbers are spaced at no more than 25" centres, so that a standard fishplate just fits between the chairs. There is more about timbering practice in these messages: http://groups.yahoo.com/group/templot/message/5006 http://groups.yahoo.com/group/templot/message/3259 but we are still waiting for the definitive guide. Anyone? _________ Before even beginning the shoving, it's sometimes worth seeing if a different basic timbering style would help. More about that at: topic 394 - message 2272 regards, Martin. |
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posted: 19 Jun 2010 15:05 from: dave turner
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Martin A black art indeed. Clearly I needed to spend more time looking back in the forums. Thank you for your reply Dave T |
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