 | Charles Tomlinson - 1849 - 188 pages
...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,... | |
 | Rufus Putnam - Arithmetic - 1849 - 402 pages
...complicated, are formed by combining a few simpler machines, commonly called the " Mechanic Powers." They are, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. In any machine, the force or original prime mover is called thePowER. The resistance to be overcome... | |
 | John Weale - Architecture - 1850 - 600 pages
...of parts which are supposed to - be perfectly rigid. The mechanical powers, sometimes described as six in number, viz. the lever, the wheel and axle,...pulley, the inclined plane, the wedge, and the screw, are reducible to two only, viz. the lever and the inclined plane, in each of which the effect produced... | |
 | Daniel Adams - Measurement - 1850 - 144 pages
...simple machines, employed to facilitate the moving of weights or the overcoming of resistance. They are six in number; viz., the Lever, the Wheel and Axle,...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... | |
 | Augustin Privat-Deschanel - Electricity - 1880 - 1176 pages
...applications of the foregoing principles; and we shall begin with the so-called " mechanical powers," namely, the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. 56. Lever. — Problems relating to the lever are usually most conveniently solved by taking moments... | |
 | Essays - 1881 - 164 pages
...ILLUSTRATE THE MECHANICAL POWERS. A Box of Working Models, of the Six Simple Mechanical Powers : namely, the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw ; with Description, Experiments, and Engravings. (These models are accurately executed in wood. Size... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 342 pages
...complicated, is made up of a very few elements, called simple machines, or mechanical powers. These are the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The force applied to work the machine is called the power ; and the resistance overcome by the machine,... | |
 | H. Bryant - 1881 - 574 pages
...moving at the rate of 80 ft. per second ? 777. Mechanical Powers. — 1. The mechanical powers are the Lever, the Wheel and Axle, the Pulley, the Inclined Plane, the Wedge, and the Screw. 2. The Lever is a solid bar turning upon a pivot. 8. The pivot is called its fulcrum. 4. To find the... | |
 | Joseph Anthony Gillet, William James Rolfe - Physics - 1881 - 544 pages
...person who winds the clock. G. MACHINES. simple machines, or mechanical powers. These are the /ever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw. The force applied to work the machine is called the power; and the resistance overcome by the machine,... | |
 | Edwin James Houston - Physics - 1881 - 220 pages
...combinations of a number of simple machines, called the mechanical powers. The mechanical powers are the lever, the wheel and axle, the pulley, the inclined plane, the wedr/e, and the screiv. The mechanical powers are all modifications of the lever, or of the inclined... | |
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MECHANICAL POWERS are certain simple instruments employed in raising greater weights, or overcoming greater resistance than could be effected by the direct application of natural strength. They are usually accounted six in number; viz. the Lever, the... 
