 | Colin MacLaurin, Patrick Murdoch - Gravity - 1750 - 492 pages
...power makes a compleat revolution, the fcrew advances by the diftance of the two neareft fpirals, and the velocity of the power is to the velocity of the weight, as the circumference defcribed by p to that diftance. The fame will appear by confidering the fcrew as... | |
 | Richard Helsham - Mechanics - 1767 - 458 pages
...the weight at B moves thro' a fimi- • lar arch of a lefler circle whofe radius is BC; confequently, the velocity of the power is to the velocity of the weight as AC to BC ; in order thereforeto a; balance, the power muft be to the weight as 1 BC-to AC ; that-is;... | |
 | James Ferguson - Astronomy - 1776 - 546 pages
...by each trundle. As the power gained by any machine, or engine whatever, is in direct proportion as the velocity of the power is to the velocity of the weight j the powers of this crane are eafily eftjtnatcd, and they are as follows. If the winch be put upon... | |
 | Adam Walker - Physics - 1790 - 108 pages
...the length of one thread round the cylinder, is to the diftance of one thread front another 3 or as the velocity of the power is to the velocity of the weight. In a common jack we have all thefe powers together, if to an arm of the fly the power be applied 3... | |
 | George Adams - Physics - 1794 - 606 pages
...circumference of the axis, and as the velocities are as the fpaces defcribed in the fame time; it follows, that the velocity of the power is to the velocity of the weight, as the circumference of the wheel is to the circumference of the axis. Though this machine will prefent... | |
 | Richard Helsham - Mechanics - 1802 - 500 pages
...AC, the weight at B moves thro' a firnilar arch of a lefler circle whofe radius is BC ; confequently, the velocity of the power is to the velocity of the weight as AC to BC ; in order therefore to a balance, the power mult be to the weight as BC to AC ; that is,... | |
 | James Ferguson, David Brewster - Astronomy - 1806 - 532 pages
...each trundle. As the power gained by any machine, or engine whatever, is, in direct proportion, as the velocity of the power is to the velocity of the weight ; the powers of this crane are easily estimated, and they are as follows. — If the winch be put upon... | |
 | William Duane - Electronic books - 1810 - 774 pages
...this kind oi lever is disadvantageous to the moving power, it is seldom used. Wheel and axle. Here the velocity of the power is to the velocity of the weight, as the circumference of the wheel is to the circumference ot the axle. Puilry. A smgle pulley, that only... | |
 | Encyclopedias and dictionaries - 1823 - 876 pages
...weight of the body F. PROP. III. 82. If a body is raised with an uniform motion along an inclined plane, the velocity of the power is to the velocity of the weight as the weight is to the power. Let the weight W be drawn uniformly up the in- „. clined plane AB, from... | |
 | James Mitchell - Mathematics - 1823 - 666 pages
...radius 1. This results immediately, if we admit the equality in the momenta of the power and weight, lor the velocity of the power is to the velocity of the weight, us the circumference of the circle described by the power is to the distance of the thieads ; but this... | |
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So that the length of the winch doubles the power gained by each trundle. As the power gained by any machine, or engine whatever, is in direct proportion as the velocity of the power is to the velocity of the weight ; the powers of this crane are easily... 
