 By means of the fixed pulley a man may raise himself to a considerable height, or descend to any proposed depth. If he be placed in a chair or bucket attached to one end of a rope, which is carried over a fixed pulley, by laying hold of this rope on the...  Mechanics - Seite 199von Henry Kater, Dionysius Lardner - 1830 - 342 SeitenVollansicht - Über dieses Buch
 | 1831 - 358 Seiten
...curried over a fixed pulley, by laying hold of this rope on the other side, as represented in Jig. 115., he may, at will, descend to a depth equal to...depressing the bucket or chair by his weight on the other. Firs-escapes have been constructed on this principle, the fixed pulley being attached to some part... | |
 | Charles Knight - 1831 - 324 Seiten
...fixed pulley, used as a finescape ? Because a person, by laying hold of the rope on the other side, may, at will, descend to a depth equal to half of...rope on the one side, and depressing the bucket or chain by his weight on the other. In this case the pulley must be attached to some part of the building,... | |
 | John Timbs - 1831 - 302 Seiten
...bucket, attached to one end of a rope which is carried over a fixed pulley, used as ajfireescape ? half of the entire length of the rope, by continually...rope on the one side, and depressing the bucket or chain by his weight on the other. In this case the pulley must be attached to some part of the building,... | |
 | John Timbs - 1832 - 300 Seiten
...Juced pulley, used as a fireescape ? Because a person, by laying hold of the rope on the other side, may, at will, descend to a depth equal to half of...rope on the one side, and depressing the bucket or chain by his weight on the other. In this case the pulley must be attached to some part of the building,... | |
 | John Timbs - 1832 - 314 Seiten
...fixed pulley, used as a fireescape ? Because a person, by laying hold of the rope on the other side, may, at will, descend to a depth equal to half of...rope on the one side, and depressing the bucket or chain by his weight on the other. In this case the pulley roust be attached to some part of the building,... | |
 | John Timbs - 1832 - 362 Seiten
...fxed pulley, used as a Jireescape ? Because a person, by laying hold of the rope on the other side, may, at will, descend to a depth equal to half of...rope on the one side, and depressing the bucket or chain by his weight on the other. In this case the pulley must he attached to some part of the building,... | |
 | Dionysius Lardner - 1846 - 580 Seiten
...carried over a fixed pulley, by laying hold of this rope on the other side, as represented in fig. 4, he may, at will, descend to a depth equal to half...pulley being attached to some part of the building. A single moveable pulley is represented in fig. 5. A cord is carried from a fixed point F, and, passing... | |
 | Dionysius Lardner - 1846 - 614 Seiten
...represented in fig. 4, he may, at i to a depth equal to halt'of the entire length of the rope, by conling rope on the one side, and depressing the bucket or chair by i the other. Fire-escapes have been constructed on this principle, ley being attached » some part... | |
 | Dionysius Lardner - 1851 - 804 Seiten
...fixed pulley, by laying hold of this rope on the other side, he may, at will, descend to a depth cqnal to half of the entire length of the rope, by continually...yielding rope on the one side, and depressing the basket or chair by his weight on the other. Fire escapes have been constructed on this principle, the... | |
 | Dionysius Lardner - 1854 - 762 Seiten
...end of a rope which is carried over a fixed pulley, by laying hold of this rope on the other side, he may, at will, descend to a depth equal to half...yielding rope on the one side, and depressing the basket or chair by his weight on the other. Fire escapes have been constructed on this principle, the... | |
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