RMweb Premium OnTheBranchline Posted June 14, 2012 RMweb Premium Share Posted June 14, 2012 I've tried to do research but I haven't found anything on what coke/coal rails on top of wagons are actually for? Help? Link to post Share on other sites More sharing options...
Baby Deltic Posted June 14, 2012 Share Posted June 14, 2012 Is it possible the raves on top of the wagon might possibly be there to stop coke being blown out of the wagon when the train is at line speed? Coke is quite light compared to coal. Link to post Share on other sites More sharing options...
RMweb Gold DaveF Posted June 14, 2012 RMweb Gold Share Posted June 14, 2012 I always understood that as coke is lighter than coal more could be carried by volume than for the same weight of coal, hence the raves. David Link to post Share on other sites More sharing options...
SquireBev Posted June 14, 2012 Share Posted June 14, 2012 As I understand it, coke rails are there to increase the volume of the wagon. Because coke is lighter than coal, 12 tons of coke takes up more space than 12 tons of coal. Link to post Share on other sites More sharing options...
Baby Deltic Posted June 14, 2012 Share Posted June 14, 2012 I always wondered how the coke didn't fall out through the gaps between the raves. Link to post Share on other sites More sharing options...
RMweb Gold DaveF Posted June 14, 2012 RMweb Gold Share Posted June 14, 2012 I always wondered how the coke didn't fall out through the gaps between the raves. Coke could be produced in large lumps as well as smaller pieces, especially if it was for industrial use. David Link to post Share on other sites More sharing options...
Arthur Posted June 14, 2012 Share Posted June 14, 2012 Volume for volume coke is less than half the weight of coal, the exact difference depends on the types of coal/coke being compared. Link to post Share on other sites More sharing options...
RMweb Gold DaveF Posted June 14, 2012 RMweb Gold Share Posted June 14, 2012 The coke wagon to the left of the signal box shows the raves fairly clearly, the raves are quite close together. It is just about possible to see the size of the coke lumps (if you have good imagination). Taken by Dad 60 years ago. David Link to post Share on other sites More sharing options...
Fat Controller Posted June 14, 2012 Share Posted June 14, 2012 Road transport had an equivalent idea- 'greedy boards' which were fitted to the top of tipper lorry bodies to increase the payload of less dense products. Link to post Share on other sites More sharing options...
br2975 Posted June 15, 2012 Share Posted June 15, 2012 Earlier this week I watched one of the DB(S) operated coke trains from the north-east to Margam as it passed by. . Formed of HTA hoppers, the train is longer than the corresponding 'MGR' coal trains using HTA wagons - again due to the reduced density of coke when compared to coal. . Brian R Link to post Share on other sites More sharing options...
James Posted June 16, 2012 Share Posted June 16, 2012 Because coke is lighter than coal [pedant]Less dense than coal[/pedant] Sorry, but otherwise spot on Link to post Share on other sites More sharing options...
RMweb Premium M.I.B Posted June 16, 2012 RMweb Premium Share Posted June 16, 2012 Road transport had an equivalent idea- 'greedy boards' which were fitted to the top of tipper lorry bodies to increase the payload of less dense products. I remember greedy boards in skips - old doors and radiators in first - stood vertically of course. That's also how the rag n bone man ( pikey) loads his van in these parts. No longer "acceptable" to do it with skips tho. Link to post Share on other sites More sharing options...
halfwit Posted June 16, 2012 Share Posted June 16, 2012 Road transport had an equivalent idea- 'greedy boards' which were fitted to the top of tipper lorry bodies to increase the payload of less dense products. Probably borrowed from the railways - 'greedy boards' were fitted to chaldrons in the 1870s and also to various narrow gauge mine wagons over the years. Link to post Share on other sites More sharing options...
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