1851 Great Exhibition: Official Catalogue: Class V.: William Francis Snowden
588. SNOWDEN, WILLIAM FRANCIS, St. James's Street, Weymouth — Inventor.
Working model of a new mode of assisting carriages up and down hills on railways; it requires no alteration to be made on the engines, carriages, or rails in common use, and is chiefly intended to save the expense of deep cuttings, tunnels, etc.
Model of a new method of reducing the labour of horses, with carriages going up and down hills on common roads or streets.
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