 | Charles James - 1805 - 1236 Seiten
...remains always the same. The friction of the pullies is very considerable, when the sheaves rub against the blocks; and by the wearing of the holes and axles. The friction of the axis of the pulley is as the weight 7C, its angular velocity, the diameter of the axis directly,... | |
 | William Emerson - 1825 - 506 Seiten
...remains always the same. The friction of the pulley is very considerable, when the sheaves rub against the blocks, and by the wearing of the holes and axles....the axis directly, and the diameter of the pulley inversely. A power of lOOlb. with the addition of 50lb. will but draw up SOOlb. with a tackle of five.... | |
 | William Emerson - 1836 - 498 Seiten
...axis of the single p+q The friction of the pulley is very considerable, when the sheaves rub against the blocks, and by the wearing of the holes and axles....the axis directly, and the diameter of the pulley inversely. A power of lOOlb. with the addition of 50lb. will but draw up 500lb. with a tackle of five.... | |
 | Henry Dircks - 1861 - 644 Seiten
...p. 187", recieati(n J5. The friction of the pulley is very considerable when the sheaves rub against the blocks, and by the wearing of the holes and axles....of the axis directly and the diameter of the pulley inversely. A power of lOOlbs. with the addition of 501bs. will but draw up 5001bs. with a tackle of... | |
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P+9 pulley, and it is not increased by the acceleration of the weight 9, but remains always the same. The friction of the pulley is very considerable, when the sheaves rub against the blocks, and by the wearing of the holes and axles. The friction on... 