Elementary Introduction to Practical Mechanics: Illustrated by Numerous ExamplesLongmans, 1870 - 324 страници |
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Страница 10
... vertical , the inclination being outward ; to bring them into the perpendicular , the following means are employed ; at certain inter- vals iron bars are placed across the building , their ends passing through the walls and projecting ...
... vertical , the inclination being outward ; to bring them into the perpendicular , the following means are employed ; at certain inter- vals iron bars are placed across the building , their ends passing through the walls and projecting ...
Страница 11
... vertically would break by its own weight ? Ans . 19,880 ft . Ex . 53. - What strain will a bar of oak 1 in . square sustain ? Ans . 38,925 lbs . Ex . 54. - What strain will a cylindrical bar of larch 1 in . in diameter sustain ? Ans ...
... vertically would break by its own weight ? Ans . 19,880 ft . Ex . 53. - What strain will a bar of oak 1 in . square sustain ? Ans . 38,925 lbs . Ex . 54. - What strain will a cylindrical bar of larch 1 in . in diameter sustain ? Ans ...
Страница 12
... vertical , the inclination being outward ; to bring them into the perpendicular , the following means are employed ; at certain inter- vals iron bars are placed across the building , their ends passing through the walls and projecting ...
... vertical , the inclination being outward ; to bring them into the perpendicular , the following means are employed ; at certain inter- vals iron bars are placed across the building , their ends passing through the walls and projecting ...
Страница 13
... vertically would break by its own weight ? Ans . 19,880 ft . Ex . 53. - What strain will a bar of oak 1 in . square sustain ? Ans . 38,925 lbs . Ex . 54. — What strain will a cylindrical bar of larch 1 in . in diameter sustain ? Ans ...
... vertically would break by its own weight ? Ans . 19,880 ft . Ex . 53. - What strain will a bar of oak 1 in . square sustain ? Ans . 38,925 lbs . Ex . 54. — What strain will a cylindrical bar of larch 1 in . in diameter sustain ? Ans ...
Страница 29
... vertical direction 8.0 1,146,000 2390 11 216 2.70 Horse yoked to a cart and walking 10.0 15,688,000 26,150 150 175 2.00 Do. to a whim gin Do. do . trotting Ox yoked to a whim gin and walking 8.0 8,440,000 17,600 100 175 2.00 4.5 ...
... vertical direction 8.0 1,146,000 2390 11 216 2.70 Horse yoked to a cart and walking 10.0 15,688,000 26,150 150 175 2.00 Do. to a whim gin Do. do . trotting Ox yoked to a whim gin and walking 8.0 8,440,000 17,600 100 175 2.00 4.5 ...
Често срещани думи и фрази
accelerative effect angle of resistance angular angular velocity axis axle beam body brickwork cast iron centre of gravity circle circumference coefficient of friction Crown 8vo cubic foot curve cylinder described determine the number diameter direction distance draw Edition engine epicycloid equal equation equilibrium expended extrados forces acting formula given hence horizontal horse-power inclined inclined plane last Example length limiting angle line of resistance mass middle point minute moment of inertia motion moving number of feet number of units oscillation P₁ parallel forces perpendicular plane pressure principle of moments Prop pulley radius raised reaction represent respectively rest resultant right angles rope round screw sliding space square inch steam suppose surface teeth thick thread tion triangle vertical virtual velocities vols wall weight wheel Woodcuts wrought iron
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