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| Looking for 75lb Joint Bars https://www.rypn.org/forums/viewtopic.php?f=2&t=47311 |
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| Author: | Nova55 [ Sun Mar 26, 2023 6:53 pm ] |
| Post subject: | Looking for 75lb Joint Bars |
Looking for some 75lb bars, 6x6" hole spacing in the Michigan/Indiana/Ohio area. |
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| Author: | k5ahudson [ Tue Mar 28, 2023 6:49 pm ] |
| Post subject: | Re: Looking for 75lb Joint Bars |
Nova55 wrote: Looking for some 75lb bars, 6x6" hole spacing in the Michigan/Indiana/Ohio area. That's a tall order. I didn't even know they made 75 Ib rail. |
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| Author: | Ed Horan [ Tue Mar 28, 2023 7:48 pm ] |
| Post subject: | Re: Looking for 75lb Joint Bars |
ASCE 7540 Height 4 13/16", Base 4 13/16", Head 2 15/32" Fishing 2 35/64". From my Lefton Iron & Metal rail scale. |
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| Author: | Larry Lovejoy [ Wed Mar 29, 2023 12:22 pm ] |
| Post subject: | Re: Looking for 75lb Joint Bars |
During World War II, one of the things the US War Production Board regulated was the number of different rail sections that could be rolled. Changing rolling machinery from one rail section to another was lost production time. A lot of those oddball rail sections disappeared from the rolling schedules during the War, never to return. One of the rail sections that was approved by the WPB was 75 ASCE. Why is unclear, since it was never popular before. Perhaps the bureaucrats rationalized that it would be a substitute for anybody who actually wanted 80 ASCE or 70 ASCE. Obviously, the bureaucrats didn't talk with anybody who actually knew anything on the topic. However, one of the results was that the US military bought a lot of 75 ASCE rail and, even today, it is fairly common to find it in tracks at military bases. Back in the 1990s, I designed a project at the Pueblo Army Depot in Colorado. Very nearly all of the track was 75 ASCE that had been rolled during the War and, thanks to very light use, was in cherry condition. Trains running out to the Transportation Test Center actually have to run through the extensive ammunition storage area at Pueblo while passing over several miles of that 75 pound rail. /s/ Larry Lawrence G. Lovejoy, P.E. |
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