 | Elroy McKendree Avery - 1878 - 480 páginas
...affords great intensity of power with a corresponding loss of velocity. FIG. 61. COMPOUND MACHINES. 209. Law of the Screw. — The second general law of machines...a given power will support a weight as many times greater than itself as the circumference described by the power is times greater than the distance... | |
 | Elroy McKendree Avery - 1895 - 616 páginas
...the number of sections into which the movable pulley divides the load. With pulleys thus arranged, a given power will support a weight as many times as great as itself as there are parts of the cord supporting the movable block. W=Pxn. (a) In the case of the differential... | |
 | Elroy McKendree Avery - 1895 - 630 páginas
...the number of sections into which the movable pulley divides the load. With pulleys thus arranged, a given power will support a weight as many times as great as itself as there are parts of the cord supporting the movable block. W=Pxn. (a) In the case of the differential... | |
 | A schoolmaster - 1895 - 140 páginas
...by the distance between two adjoining turns of the thread. 226. What is the law of the screw ? The power will support a weight as many times as great as itself as the cicumference described by the power is times as great as the distance between two adjoining turns of... | |
 | Elroy McKendree Avery - 1897 - 328 páginas
...Mechanical Advantage of the Pulley. — With the ordinary arrangement of pulleys, like the block and tackle, a given power will support a weight as many times as great as itself as there are parts of the cord supporting the movable block. FG 48. W=Pxn. (a) In experiments to determine... | |
 | Amos T. Fisher, Melvin J. Patterson - 1902 - 200 páginas
...lever, and moves through the circumference of a circle. As in other simple machines P :W::Wd:Pd, so that a given power will support a weight as many times as great as itself as the circumference of Othe circle described by the power is times as great as the pitch. of the screw. Questions.— 1.... | |
 | American School (Chicago, Ill.) - 1903 - 390 páginas
...a given force. Fio. 22. Fio. 23. FIG. 24. Ignoring friction, in a pulley having a continuous cord, a given power will support a weight as many times as great as itself, as there are parts of the cord supporting the movable block. In Fig. 25 it is evident that, when the fixed... | |
 | Ernest John Andrews, Howard Newell Howland - 1903 - 466 páginas
...: P x length = WX height. A given force acting parallel to the horizontal base of an inclined plane will support a weight as many times as great as itself as the vertical height is contained times in the length of the horizontal base. Or : P x length of base =... | |
 | Ernest John Andrews, Howard Newell Howland - 1903 - 464 páginas
...great as itself. Hence the law : With a continuous cord working over a set of pulleys, a given force will support a weight as many times as great as itself as there are parts of the cord supporting the weight. 153. The Inclined Plane. — The inclined plane... | |
 | John Francis Woodhull, May Belle Van Arsdale - 1906 - 152 páginas
...through which it acts equals the effort multiplied by the distance through which it is applied. Or, a given power will support a weight as many times as great as itself as the power arm is times as long as the weight arm. There are three classes of levers, depending upon the... | |
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With pulleys thus arranged, a given power will support a weight as many times as great as itself as there are parts of the cord supporting the movable block. 
