Hill, John A. (John Alexander), 1858-1916, Sinclair, Angus, 1841-1919 · New York : American Machinist Pub. Co · leaf 18
aces the tirehas a bite of full two inches on the rail,and that by thus increasing the surface ofthe point of contact the engine will be ableto do wonders, will run up hill as fast asdown, and, having no sii/e bars betweenwheels, can run around curves at fullspeed, where the present locomotives… … the rail only in a mathematical line ; ac-cording to this reasoning their driver, inchanging from one facet to another, willhardly rest on the rail at all. They saythat many locomotives are now built withfrom four to ten drivers, in order to in-crease the surface of contact, and thus thetractive…
Railroads · Locomotives
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