Shop Mathematics ...: Shop arithmeticMcGraw-Hill book Company, 1912 |
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Σελίδα 94
... load on the 12 ft . pedestal , allowing 4 ft . clearance at the end for ropes , pulleys , etc. ? 27- FIG . 34 . 21 ... loads for bolts , beams , etc. , tables of proportions of standard machine parts of different sizes , etc. The ...
... load on the 12 ft . pedestal , allowing 4 ft . clearance at the end for ropes , pulleys , etc. ? 27- FIG . 34 . 21 ... loads for bolts , beams , etc. , tables of proportions of standard machine parts of different sizes , etc. The ...
Σελίδα 115
... load or weight W tending to descend ; and second , that of the force P tending to raise W. The ability of W to descend or to resist being lifted depends on two things - its weight and its distance from the fulcrum F. The product of ...
... load or weight W tending to descend ; and second , that of the force P tending to raise W. The ability of W to descend or to resist being lifted depends on two things - its weight and its distance from the fulcrum F. The product of ...
Σελίδα 117
... the weight and the fulcrum and , therefore , P must be greater than the load . that it lifts . The weight is lifted by an upward force at P. In all these types the same rule holds that : LEVERS 117 Three classes of levers.
... the weight and the fulcrum and , therefore , P must be greater than the load . that it lifts . The weight is lifted by an upward force at P. In all these types the same rule holds that : LEVERS 117 Three classes of levers.
Σελίδα 119
... of them at a time , I must make four trips . The lighter the load , the more trips I must make . The work done is the same whatever way I carry them and is equal to the product of the total weight LEVERS 119 Mechanical Advantage.
... of them at a time , I must make four trips . The lighter the load , the more trips I must make . The work done is the same whatever way I carry them and is equal to the product of the total weight LEVERS 119 Mechanical Advantage.
Σελίδα 120
... load must be carried . 95. The Wheel and Axle . - This is a name given in mechanics to the modification of levers that enables them to be rotated continuously . Fig . 43 shows the principle of this : By wrapping a belt or rope around ...
... load must be carried . 95. The Wheel and Axle . - This is a name given in mechanics to the modification of levers that enables them to be rotated continuously . Fig . 43 shows the principle of this : By wrapping a belt or rope around ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
allowable Answer belt bolt calculate cast iron Centigrade cents cipher circle circumference common denominator common fraction compression countershaft Cube root root Cube Square Cube cubic cutting speed cylinder decimal places decimal point diameter dimes distance divide dividend division divisor dollar driven efficiency emery wheel equal Example exerted expansion Explanation Fahrenheit feet figure foot-pounds formula gear given gives heat Hence hoist horse-power hydraulic improper fraction inclined plane large piston lathe lead screw length lever lifted lineshaft machine mean effective pressure mechanical advantage mixed number move the decimal multiply necessary numbers of teeth piece pipe PROBLEMS pull pulley pump pyrometer quotient raised ratio reduced revolutions per minute rope shaft sheave shown in Fig specific gravity Square Cube root Square Cube Square square inch square root steam engine steel stress stroke subtract tank temperature thermometer threads water pressure whole number
Δημοφιλή αποσπάσματα
Σελίδα 59 - In any proportion, the product of the means is equal to the product of the extremes.
Σελίδα 87 - Put another way, if you construct squares on the edges of a right-angled triangle, the area of the square on the hypotenuse is equal to the sum of the areas of the squares on the other two sides.
Σελίδα 60 - Solve by knowing that the product of the means equals the product of the extremes...
Σελίδα 7 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 37 - If there are more decimal places in the divisor than in the dividend, what do you do ? What will the figures of the quotient then be ? § 132.
Σελίδα 36 - Subtract the number of decimal places in the divisor from the number of decimal places in the dividend, and point off as many decimal places in the quotient as there are units in the remainder thus found.
Σελίδα 144 - MEP in pounds per square inch; A = area of piston in square inches; L = length of stroke in feet ; N= number of working strokes per minute.
Σελίδα 35 - To divide by 10, move the decimal point one place to the left. To divide by 100, move the decimal. point two places to the left, and so on for other powers of 10.
Σελίδα 3 - An Improper Fraction is one whose numerator is equal to, or greater than, the denominator; as, f, f.
Σελίδα 100 - No. Square Cube Square root Cube root No. Square Cube Square root Cube root 1 1 1 1.