...power, or to produce motion so as to save time or force. The mechanical powers are six in number, viz. : the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. The weight signifies the body to be moved, or the resistance to be overcome ; and the power is the...

...breadth 35 ft., and the depth 25 ft. ? MECHANICAL POWERS. 648. The Mecfianical powers are six, viz: the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. 649. When the pmtxr and weight, act perpendicularly to the arms of a straight,...

...powerful and beautiful pieces of machinery which have ever been constructed. These few elementaiy powers are, the lever, the wheel and axle, the pulley, the inclined plane, the wedge and the screw. The lever is a straight bar placed upon a supporting point called a fulcrum, with the resistance which...

...bs., to the same height. 3. The number of the mechanical powers is usually reckoned to be six : viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screrc. 4. In treating of these machines, we use the word power, to denote the force which is supposed...

...breadth 35 ft., and the depth 25 ft. 1 MECHANICAL POWERS. G48. The Mechanical powers are six, viz: the lever, the wheel and axle, the pulley, the inclined plane, the screw, and the wedge. 649. When the pi.wer and weight act perpendicularly to the arms of a straight...

...to facilitate the moving of weights or the overcoming of resistance. They are six in number ; viz., the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In mechanical powers and in machinery, the thing to be moved, or the resistance to be overcome, is called...

...principles of mechanics in philosophy ; acting by physical power. Mechanical powers, or elementary machines, are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw: to which some writers have added the rope-machine and the balance. All these, however, may be reduced...

...resistance. In the composition of machines it is usual to speak of six mechanical porcers ;* namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw; although in reality these contrivances are but applications of the principle of virtual velocities,...

...natural strength without them. The simple machines, called Mechanical powers, are six in number ; viz. the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw ; and of these all the most compound engines consist. The general principle is, that the power or advantage...

...to facilitate the moving of weights or the overcoming of resistance. They are six in number; viz., the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In mechanical powers and in machinery, the thing to be moved, or the resistance to be overcome, is called...