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" ... provided the elbow of one of the handles be at right angles to that of the other. And with a fly, or heavy wheel, applied to it, a man may do... "
The Principles of Mechanics ...: To which is Now Added, an Appendix ... - Pàgina 143
per William Emerson - 1825 - 318 pàgines
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The Principles of Mechanics: Explaining and Demonstrating the General Laws ...

William Emerson - 1758 - 284 pàgines
...a windlefs, or roller, they can more eafily draw up 7oIb. than one man can 3oIb. provided the eIbow of one of the handles, be at right angles to that...a fly, or heavy wheel applied to it ; a man may do | part more work ; and for a little while act with a force, or overcome a continual refiftance of 80...
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A New and Enlarged Military Dictionary: Or, Alphabetical Explanation of ...

Charles James - 1805 - 1006 pàgines
...30lb. provided the elbow of one of the handles, be at right tingles to that of the other : and witii a fly or heavy wheel applied to it, a man may do l-3d part more work ; and for a little while act with a force, or overcome a continual resistance of...
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A Treatise of Mechanics: Theoretical, Practical, and Descriptive, Volum 1

Olinthus Gregory - 1806
...men work at a windlafs Or roller, they cart more eafily draw up 70 Ibs. than one maji can 30 Ibs.; provided the elbow of one of the handles be at right angles to that of the other. Men ufed to bear loads, fuch as porters, will carry from 150 Ibs. to 200 or 250 Ibs.. according to...
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The British encyclopedia, or, Dictionary of arts and sciences, Volum 6

William Nicholson - 1809
...a windlass, or roller, they can mor* easily draw up seventy pounds, than one man can thirty pounds, provided the elbow of one of the handles be at right...do onethird part more work; and for a little while he can act with a force, or overcome a continual resistance, of eighty pounds ; and work a whole day...
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A Military Dictionary: Or, Explaination of the Several Systems of Discipline ...

William Duane - 1810 - 748 pàgines
...more. If two men work at a windlass or roller, they can more easily draw up 7olb. than one man 30!!). provided the elbow of one of the handles be at right...the other : and with a fly or heavy wheel applied toit, aman may do i-ßd part more work ; and for a little while ,:ct with a force, or overcome a continual...
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British Encyclopedia: Or, Dictionary of Arts and Sciences ..., Volum 11

William Nicholson - 1821
...a windlass, or roller, they can more ea>ily draw up seventy pounds, than one man can thirty pounds, provided the elbow of one of the handles be at right angles to that of the other. And with :i fly, or heavy wheel, applied to it, a man may do one third part more work ; and for a little while...
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Pantologia. A new (cabinet) cyclopædia, by J.M. Good, O. Gregory ..., Volum 11

John Mason Good - 1819
...thirty pounds, provided the elbow of one of the tundles lie at right angles to that of the oilier. ¿ai with a fly, or heavy wheel, applied to it, a man may do one-third part more work ; and f'ra little while he can act with a force, or cercóme a continual resistance, of eighty puunils ;...
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American Edition of the British Encyclopedia: Or, Dictionary of ..., Volum 11

William Nicholson - 1821
...a windlass, or roller, they can more easily draw up seventy pounds, than one man can thirty pounds, provided the elbow of one of the handles be at right...a fly, or heavy wheel, applied to it, a man may do one third part more work ; and for a little while he can act with a force, or overcome a continual...
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Dictionary of the Mathematical and Physical Sciences, According to the ...

James Mitchell - 1823 - 576 pàgines
...roller, they can more easily draw up seventy pounds than one man an thirty pounds, provided the Ibow of one of the handles be at right angles to that of...heavy wheel, applied to it, a man may do onethird more work ; and for a little while he can act with a force, or overcome a continual resistance, of...
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Journal of the Franklin Institute

1828
...two men work at a windlass, or roller, they can more easily draw up 70 Ibs. than one man can SO Ibs.; provided the elbow of one of the handles be at right angles to that of the other. Men used to bear loads, such as porters, will carry from 150 Ibs. to 200 or 250 Ibs., according to...
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