s for crushing stones more than anything else. recently some good specimens of plate bending rolls, some notion of which may be obtained by a glance at Now, Messrs. Dion, Bouton & Trepardoux have suc- the annexed illustration. ceeded in manufacturing steam vehicles of all sorts and of all… … neath the frame are ar- roll is shown in the illus- ranged the cylinders, and tration. We found on trial the differential gear that _that it was comparatively ata speed of 300 ft. per minute, this speed being re- easy to lift the roll, even with the balance weights renders the driving wheels inter-…
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