Shop Mathematics ...: Prepared in the Extension Division of the University of Wisconsin, Τόμος 1McGraw-Hill book Company, Incorporated, 1924 |
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Σελίδα xiii
... ropes . 128. Wire ropes and cables . 129. Strengths of chains . 209 210 211 211 212 214 214 214 130. Columns .. 215 CHAPTER XIX LOGARITHMS 131. Common logarithms 132. Mantissas and characteristics 133. Use of logarithmic tables 134 ...
... ropes . 128. Wire ropes and cables . 129. Strengths of chains . 209 210 211 211 212 214 214 214 130. Columns .. 215 CHAPTER XIX LOGARITHMS 131. Common logarithms 132. Mantissas and characteristics 133. Use of logarithmic tables 134 ...
Σελίδα 104
... rope speed of 150 f.p.m. at the drum . If the hoisting drum makes 36 r.p.m. , what diameter of drum is required ? Note . The hoisting rope is wound up on the drum . 138. A 30 - in . pulley and a 24 - in . pulley are keyed to the same ...
... rope speed of 150 f.p.m. at the drum . If the hoisting drum makes 36 r.p.m. , what diameter of drum is required ? Note . The hoisting rope is wound up on the drum . 138. A 30 - in . pulley and a 24 - in . pulley are keyed to the same ...
Σελίδα 148
... rope running over it , and a weight W at one end of the rope is balanced by a force P at the other end . By dotting in the lever of Fig . 49 on top of the wheel , for comparison , we see R R W FIG . 50. - Wheel and axle . at once that ...
... rope running over it , and a weight W at one end of the rope is balanced by a force P at the other end . By dotting in the lever of Fig . 49 on top of the wheel , for comparison , we see R R W FIG . 50. - Wheel and axle . at once that ...
Σελίδα 149
... rope which is wound on the wheel , balances the weight W , hung from the rope which is wound on the axle . The force arm is thus equal to the radius , R , of the wheel , the weight arm equals the radius , r , of the axle , and the R ...
... rope which is wound on the wheel , balances the weight W , hung from the rope which is wound on the axle . The force arm is thus equal to the radius , R , of the wheel , the weight arm equals the radius , r , of the axle , and the R ...
Σελίδα 150
... rope than if all the bearing surfaces were oiled and in good running condition . What then becomes of the additional force applied at the crank in the first condition , since the force delivered to the rope is the same in both cases ...
... rope than if all the bearing surfaces were oiled and in good running condition . What then becomes of the additional force applied at the crank in the first condition , since the force delivered to the rope is the same in both cases ...
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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.