...the nail byttie time that the nail is drawn out. Hence it is evident, that in every species of lever there will be an equilibrium, when the power is to the weight as the distance of the weight from the fulcrum is to the distance of the power from the fulcrum. In experiments...

...of the wheel ; the weight to the circumference of the axle. 65. The wheel and axle \$ in equilibrio when the power is to the weight as the radius of the axle to the radius of the wheel. The wheel and axle may be considered as a lever, go contrived as to have...

...of the wheel ; the weight to the circumference of the axle. 74. The wheel and axle is in equilibrio when the power is to the weight as the radius of the axle to the radius of the wheel. The wheel and axle may be considered as a lever, so contrived as to have...

...their threads, that is, P :p= J£ : Í. or P varies яя — . PROP. II. 535. In the endless screw, there will be an equilibrium when the power is to the weight, as the distance of the threads multiplied by the radius of the axle, is to the distance of the power from...

...there will be an equilibrium, if the power is equal to half the weight only. 39. In the inclined plane there will be an equilibrium, when the power is to the weight as the height of the plane is to the length. 40. In the wedge, the power will be to the weight as half the...

...axle in a plane at right angles to the axle. 127. 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. The effort of the power to turn the machine round the axis, must be the...

...PRACTICAL. By GG WARD, Michine Maker. ( Continued from p. 93.} PROPOSITION IX. In the single moveable pulley there will be an equilibrium, when the power is to the weight as 1 .' 2. For the pulley ab (Fig. 19) is otovionsly reducible to a lever of the second order, whose fulcrum...

...PRACTICAL. By GG WiRD, Michine Maker. ( Continued/ram p. 93.) PROPOSITION IX. In the single moveable pulley there will be an equilibrium, when the power is to the weight as 1 : 2. For the pulley ab (Fig. 19) is obviously reducible to a lever of the second order, whose fulcrunj...

...other force as P ', acting at a point M' in the circumference of the wheel. PROP. In the Wheel and Axle the power is to the weight as the radius of the axle is to the radius of the wheel. Let fig. 19 represent the machine seen endways with respect to the axle. The forces which tend to turn...

...power end of the lever, and the circumference of the axle, L the end applied to the weight. Hence, the radius of the axle is to the radius of the wheel, as the power is to the weight: or, by a statement more frequently convenient — As the diameter of...