An essay on the construction of wheel-carriages, as they affect both the roads and the horses : with suggestions relating to the principles on which tolls ought to be imposed, and a few remarks on the formation of roads (1820)
Fry, Joseph Storrs, 1766-1835 · Bristol : Printed by T.J. Manchee · leaf 19
tralize afifth, a fourth, or even more, of the strengthof the horses ; and so in proportion, as axles CHAP. I.] WHEEL-CARRIAGES. 7 are well or badly constructed. And as thesubstance interposed may be of a hibncous,or of a viscous and tenacious quality, th3axle-friction will be less or greater—or,… … The circle represents a wheel 6 feet in 8 ESSAY ON [chap. I. diameter—C being- the centre ; O an obsta-cle 3 inches iiigh; G the ground; T Cthe hne of draft or traction. The lever isrepresented by the lines C O and O G; ofwhich C O is the arm of the lever ; and O Gthe opposite or lifting end ; O…
