. A practical treatise on railways, explaining their construction and management ... being the article "Railways" in the seventh edition of the Encyclopedia britannica, with additional details . w edge on both sides is used, which acts downwards as wellas sideways, from the opening in the chair to receive it be-ing narrower at the top than at the bottom. Fig. 7 shews the parallel rails laid down on the GrandJunction, and London and Birmingham railways. The lefthand one is sixty-four lbs. per yard on the London and Bir-mingham, and sixty-two lbs. per yard on the Grand right band on
. A practical treatise on railways, explaining their construction and management ... being the article "Railways" in the seventh edition of the Encyclopedia britannica, with additional details . w edge on both sides is used, which acts downwards as wellas sideways, from the opening in the chair to receive it be-ing narrower at the top than at the bottom. Fig. 7 shews the parallel rails laid down on the GrandJunction, and London and Birmingham railways. The lefthand one is sixty-four lbs. per yard on the London and Bir-mingham, and sixty-two lbs. per yard on the Grand right band one is the London and Birmingham seventy-five pound rail. Rails of this kind are laid on seventy-fivemiles of that railway, and were intended to be at five feet 8^ BAILWATS. bearings,but provedacomplete failureat that distance, whichliad to be reduced to three feet nine inches. The left handcne was intended to be at four feet bearings. These rails Fig.
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