Elementary and Practical Instructions on the Science of Railway Construction (Classic Reprint) - Tapa blanda

Sinopsis

Excerpt from Elementary and Practical Instructions on the Science of Railway Construction

Their general principles may be regarded as the adaptation of mechanical contrivance for the diminution of friction in the ordinary appliances of locomotion, and a consequent reduction of time and space proportioned to the degree of perfection attained in the means employed.

Of their origin, progress, and present position, it is admitted that the collieries first benefited by the use of wood and cast-iron tramways, to convey heavy loads for short distances, at a cost for traction which speedily attested its superiority over the common road. The soundness of the principle gradually induced its extension. Flat stone tramways and wrought-iron rails in endless variety of form underwent the test of examination and experiment, and after several years, and great, though perhaps unavoidable cost, the Railway system is firmly established upon a secure and solid base, with clear and defined general principles, and in course of rapid and universal extension.

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