Shop Mathematics ...: Shop arithmeticMcGraw-Hill book Company, 1912 |
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Σελίδα 8
... feet does it go in 1 second ? 13. An apprentice who is drilling and tapping a cylinder for 7 in . studs , 3 8 1 4 tries a in . drill but the tap binds , so he decides to use a drill What size drill does he ask for ? 64 in . larger . 14 ...
... feet does it go in 1 second ? 13. An apprentice who is drilling and tapping a cylinder for 7 in . studs , 3 8 1 4 tries a in . drill but the tap binds , so he decides to use a drill What size drill does he ask for ? 64 in . larger . 14 ...
Σελίδα 53
... feet . This is of the number of inches , or it is the number of inches divided by 12 . In the work of this chapter , the circumferences of circles are always used in feet , and , consequently , should always be calculated in feet . If ...
... feet . This is of the number of inches , or it is the number of inches divided by 12 . In the work of this chapter , the circumferences of circles are always used in feet , and , consequently , should always be calculated in feet . If ...
Σελίδα 54
... feet per minute , travelled by a point on the circumference of a wheel is called its Circum- jerential Speed , Rim Speed , or Surface Speed . It is also some- times called Peripheral Speed , because the circumference is sometimes given ...
... feet per minute , travelled by a point on the circumference of a wheel is called its Circum- jerential Speed , Rim Speed , or Surface Speed . It is also some- times called Peripheral Speed , because the circumference is sometimes given ...
Σελίδα 55
... feet per minute . This refers to the distance that a point on the circumference of the stone should travel in 1 minute and is called the " surface speed " or the " grinding speed . " The proper speed at which to run grindstones depends ...
... feet per minute . This refers to the distance that a point on the circumference of the stone should travel in 1 minute and is called the " surface speed " or the " grinding speed . " The proper speed at which to run grindstones depends ...
Σελίδα 56
... ( feet per minute ) . As this lies be- tween the allowed limits ( 550 to 600 F. P. M. ) the speed of the stone is correct . 2. At what R. P. M. should a 50 - in . Huron stone be run if it is to be used for rough grinding ? C = TXD C ...
... ( feet per minute ) . As this lies be- tween the allowed limits ( 550 to 600 F. P. M. ) the speed of the stone is correct . 2. At what R. P. M. should a 50 - in . Huron stone be run if it is to be used for rough grinding ? C = TXD C ...
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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.