Shop Mathematics ...: Prepared in the Extension Division of the University of Wisconsin, Τόμος 1McGraw-Hill book Company, Incorporated, 1924 |
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Σελίδα xii
... Unit of work . 99. Power 100. Horsepower of belting . 101. Widths of belts • • 102. Rules for belting . PAGE • 145 146 • 147 150 155 158 159 159 161 162 167 • 167 168 169 171 172 CHAPTER XV HORSEPOWER OF ENGINES 103. Steam engines . 177 ...
... Unit of work . 99. Power 100. Horsepower of belting . 101. Widths of belts • • 102. Rules for belting . PAGE • 145 146 • 147 150 155 158 159 159 161 162 167 • 167 168 169 171 172 CHAPTER XV HORSEPOWER OF ENGINES 103. Steam engines . 177 ...
Σελίδα xiii
... Unit of heat . 206 121. Efficiencies of boilers and engines . 206 CHAPTER XVIII STRENGTH OF MATERIALS 122. Stresses . 123. Unit stress 124. Ultimate strength 125. Safe working stresses . 126. Strengths of bolts . 127. Strengths of hemp ...
... Unit of heat . 206 121. Efficiencies of boilers and engines . 206 CHAPTER XVIII STRENGTH OF MATERIALS 122. Stresses . 123. Unit stress 124. Ultimate strength 125. Safe working stresses . 126. Strengths of bolts . 127. Strengths of hemp ...
Σελίδα 1
... unit , we must use fractions . A machinist cannot do all his work in full inches because it is generally impossible to have all measurements in exact inches . Consequently , for measurements less than 1 in . , he uses fractions of an ...
... unit , we must use fractions . A machinist cannot do all his work in full inches because it is generally impossible to have all measurements in exact inches . Consequently , for measurements less than 1 in . , he uses fractions of an ...
Σελίδα 2
... unit called the inch was in use , the foot was the common unit for measuring lengths . When it was necessary to measure lengths less than 1 ft . , fractions of a foot were used . This became too troublesome , so of a foot was given the ...
... unit called the inch was in use , the foot was the common unit for measuring lengths . When it was necessary to measure lengths less than 1 ft . , fractions of a foot were used . This became too troublesome , so of a foot was given the ...
Σελίδα 3
... unit . 44 = 1 8 = 1 8 10 = 1 10 In each of these cases , the numerator shows that we have taken the full number of parts into which the unit has been divided . Consequently , each of the fractions equals a full unit , or 1 . A Proper ...
... unit . 44 = 1 8 = 1 8 10 = 1 10 In each of these cases , the numerator shows that we have taken the full number of parts into which the unit has been divided . Consequently , each of the fractions equals a full unit , or 1 . A Proper ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amount Answer Antilog belt block boiler bolt brake horsepower calculated castings Centigrade cents ciphers circle circumference common denominator common fraction cube root cubic cutting speed cylinder decimal places decimal point diameter dimensions dimes distance divide dividend division dollar efficiency emery wheel equal Example Explanation Fahrenheit feet final divisor foot-pounds force arm formula given gives heat hoist horsepower improper fraction inclined plane indicated jackscrew lathe lead screw length lever lifted line shaft load logarithmic scale machine mantissa measure mechanical advantage minute mixed numbers multiply number of teeth operation piece piston pound pressure PROBLEMS pulley pump quotient raised reduced revolutions per minute rope shaft shown in Fig slide rule square inch square root steam engine steel stress stroke subtract surface speed temperature threads per inch trial divisor unit volume weight arm whole number width
Δημοφιλή αποσπάσματα
Σελίδα 129 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq.
Σελίδα 8 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 163 - Fig. 49. We will solve this problem partly graphically and partly by calculation. The first step is to find how fast the crank pin D is moving. For one turn of the crank, D travels through a distance equal to the circumference of a circle whose radius is R, that is, a distance of 2'ffTi.
Σελίδα 3 - An Improper Fraction is one whose numerator is equal to, or greater than, the denominator; as, f, f.
Σελίδα 41 - 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 5 - When the numerator is less than the denominator, the value of the fraction is less than 1. 5th. When the numerator is equal to the denominator, the value of the fraction is equal to 1. 6th. When the numerator is greater than the denominator, the value of the fraction is greater than 1.
Σελίδα 76 - In any proportion, the product of the means is equal to the product of the extremes.
Σελίδα 41 - To multiply by 10, move the decimal point one place to the right, annexing a zero if necessary.
Σελίδα 2 - Definition of a Fraction. — A Fraction is one or more of the equal parts into which anything may be divided.