 | Sir Richard Phillips - Celestial mechanics - 1811 - 196 pages
...doors turning on hinges, cutting knives which, are fixed at one end. 68. A lever of the third kind, is when the prop is at one end, the weight at the other, and the power applied between them. Here the power must exceed the weight, in the same proportion as the distance of the weight from the... | |
 | James Ferguson - Astronomy - 1814 - 420 pages
...power will be sufficient to raise, the weight. There are four kinds of levers.* 1. The common sort, where the prop is placed between the weight and the...bended lever, which differs only in form from the first sort, but not in property. Those of the first and second kind are often used-in mechanical engines... | |
 | Alexander Jamieson - Natural history - 1821 - 448 pages
...kind of lever may be reduced oars, rudders of ships, cutting knives which are fixed at one end, &c. 3. When the prop is at one end, the weight at the other, and the power applied between them. In this lever we suppose the power and weight to change places, the power _ (p) is between the weight... | |
 | William Nicholson - Natural history - 1821 - 408 pages
...fastened at or near the point of the blade ; also in oars moving a boat, the water being the fulcrum. When the prop is at one end, the weight at the other, and the power applied between them, as in tongs, sheers, &c. The lever of the first kind is principally used for loosening large stones;... | |
 | William Nicholson - Natural history - 1821 - 406 pages
...fastened at or near the point of the blade ; also in oars moving a boat, the water being the fulcrum. When the prop is at one end, the weight at the other, and the power applied between them, as in tongs, sheers, &c. The lever of the first kind is principally used for loosening large stones;... | |
 | John Imison - Art - 1822 - 528 pages
...There are three kinds of levers: 1. When the fulcrum, or prop, is between the power and the weight. 2. When the prop is at one end of the lever, the power...at one end, the weight at the other, and the power between. 2. In all kinds of levers, the power is to the weight, as the distance of the weight from... | |
 | Jeremiah Joyce - Astronomy - 1824 - 224 pages
...end of the lever, the power at the other, and the weight between them: the third is when the fulcrum is at one end, the weight at the other, and the power between them. 31. In all kinds of levers, the power is to the weight as the distance of the weight... | |
 | Hewson Clarke, John Dougall - Agriculture - 1825 - 892 pages
...When the prop is at (me -end of the lever, the power at the other, and the weight between them ; and 3, When the prop is at one end, the weight at the other and the power between them. Of the first tsoit of lever is the common iron crow, for joying a block of stone or so,... | |
 | Sir Richard Phillips - Physics - 1826 - 254 pages
...turning on hinges, and cutting knives which are fixed af one end. 71 . A lever of the third kind is when the prop is at one end, the weight at the other, and the power applied between them. Here the power must exceed the weight in the same proportion, as the distance of the weight from the... | |
 | Levi Washburn Leonard - New Hampshire - 1827 - 398 pages
...divided, that they shall draw in proportion to their respective ability. The third kind of lever is when the prop is at one end, the weight at the other, and the power applied between them. To this kind are generally referred the bones of a man's arm, for when he lifts a weight by the hand,... | |
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... 2. When the prop is at one end of the lever, the power at the other, and the weight between them. 
