 | Joseph Allen Galbraith, Samuel Haughton - 1866 - 200 sider
...since the circumferences of circles are proportional to their radii, The power is to the resistance as the radius of the axle is to the radius of the wfteel. — «. ED The wheel and axle is sometimes modified, as shown in the following figure. In this... | |
 | Isaac Todhunter - 1867 - 368 sider
...machine round the axis in opposite directions. 182. When there is equilibrium on the Wheel and Axle, the Power is to the Weight as the radius of the Axle is to the radius of the Wheel. It may be assumed, that the effects of the Power and the Weight will not be altered if we suppose them... | |
 | James McDowell - 1867 - 120 sider
...radius of axle W OA radius of wheel• Hence, when there is equilibrium on the wheel and axle, P is to W as the radius of the axle is to the radius of the wheel. The converse is manifestly true, namely, TfPbe to W as the radius of the axle to the radius of the... | |
 | Le Roy Clark Cooley - 1871 - 260 sider
...fulcrum. For the wheel and axle the law of equilibrium states, that the power and weight will be in equilibrium when the power is to the weight as the radius of the axle is to the radius of the wheel. For the movable pulley with a single rope the law states, that the power and weight will balance each... | |
 | J W. Mulcaster - 1871 - 242 sider
...wheel, CN=r=radius of axle. Therefore, taking moments about C, PxR=Wxr; .-. ^=J; .-. there will be equilibrium when the power is to the weight as the radius of the axle is to the radius of the wheel. When the thickness of the rope is considerable, it must he taken into account; we shall then have P... | |
 | Denison Olmsted - 1871 - 466 sider
...distance, (,' D or CB, the same as before. In general, the law of equilibrium for this machine is, The power is to the weight as the radius of the axle to the radius of the wheel. If the rope on the wheel, being fastened at A (Fig. 87) is drawn by the... | |
 | J Alfred Skertchly - 1873 - 184 sider
...acts at B, the extremity of the shorter arm B F. Consequently, P : W : : AF : B F. In other words, the power is to the weight as the radius of the axle is to the radius of the wheel. Virtual Velocity.— It is easy to perceive that the power descends in one revolution of the wheel... | |
 | Stephen Parkinson - 1874 - 436 sider
...and there will be equilibrium if P. MO = W. NO, P NO or W = Wn' 1, e , ^ t^ e P ower i 8 *° tf* e weight as the radius of the axle is to the radius of the wheel. 101. Obs. If the thickness of the ropes cannot be neglected, we must suppose the action of P and W... | |
 | Lorenzo Fairbanks - 1875 - 472 sider
...wound about a cylinder or roller, moved by a crank, shifting levers, or similar means. -PRINCIPLE. — The power is to the weight as the radius of the axle is to the radius of the wheel. EXAMPLES. 1. The diameter of a wheel is 4 feet, and of its axle 8 inches : what power applied to the... | |
 | George Victor Le Vaux - 1875 - 324 sider
...multiplied by 2 multiplied by 3.1416: — Thus, P : W: : Diff. : U 2x3.1416. The Endless Screw. — The power is to the weight as the radius of the axle is to the product of the number of teeth in wheel, multiplied by the length of the winch : — Thus, P : W :... | |
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There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. 
