Shop MathematicsBruce publishing Company, 1928 - 219 σελίδες |
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Σελίδα viii
... Ball Bearings 76 77 Machine Keys Linear Measuring Instruments Machines Lathes The back gears 82 82 90 90 93 Screw thread cutting 95 The reversing feed gears 97 Compound gearing 98 Turning tapers 101 Cutting speeds for various materials ...
... Ball Bearings 76 77 Machine Keys Linear Measuring Instruments Machines Lathes The back gears 82 82 90 90 93 Screw thread cutting 95 The reversing feed gears 97 Compound gearing 98 Turning tapers 101 Cutting speeds for various materials ...
Σελίδα 4
... ball weighs 100 lbs . , what is its energy when suspended at a height of 28 ft . from the ground ? 10. A rock drill is operated by a 10 lb. sledge hammer with a striking velocity of 30 ft . per sec . Find the energy used in the drilling ...
... ball weighs 100 lbs . , what is its energy when suspended at a height of 28 ft . from the ground ? 10. A rock drill is operated by a 10 lb. sledge hammer with a striking velocity of 30 ft . per sec . Find the energy used in the drilling ...
Σελίδα 5
... ball falls 2500 ft . What is its velocity when it strikes and what is its kinetic energy ? 18. A 500 volt electric motor runs 50 machines using 22 amperes of current . What is its H. P. ? 19. What is the H. P. of a dynamo which will run ...
... ball falls 2500 ft . What is its velocity when it strikes and what is its kinetic energy ? 18. A 500 volt electric motor runs 50 machines using 22 amperes of current . What is its H. P. ? 19. What is the H. P. of a dynamo which will run ...
Σελίδα 27
... ball weighing 398 lbs . rests on a surface which is inclined 16 ° 45 ′ to the horizontal . What force , acting at an angle of 14 ° 30 ' to the incline , is required to hold the ball in position ? 2. A weight of 3,500 lbs . is to be ...
... ball weighing 398 lbs . rests on a surface which is inclined 16 ° 45 ′ to the horizontal . What force , acting at an angle of 14 ° 30 ' to the incline , is required to hold the ball in position ? 2. A weight of 3,500 lbs . is to be ...
Σελίδα 77
... ball race may be calculated from the size and number of balls as follows : In Fig . 45 by trigonometry AO = AD sin AOD let 2XAO = D 360 ° 180 ° LAOD = 2n n where n = number of balls in race D = dia . of circle at center of balls d = dia .
... ball race may be calculated from the size and number of balls as follows : In Fig . 45 by trigonometry AO = AD sin AOD let 2XAO = D 360 ° 180 ° LAOD = 2n n where n = number of balls in race D = dia . of circle at center of balls d = dia .
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
24 teeth ampere angle back gears balls bearings cast iron change gears circular pitch circumference compound gearing cone pulley Cosecants Cosines countershaft cutter cylinder depth of cut diameter disc divisions double belt drill drive pulley driving spindle engine Example factor of safety feet Find the H. P. Find the indexing fly wheel force formula friction ft.-lbs fulcrum heating surface helical gear horse power inclined plane index head index plate indexing required lathe center lathe spindle lead screw length lever line shaft main line measure mesh milling cutter milling machine minute motion move multiplied number of teeth piston pounds pressure problem pull pump required to run rope screw thread sheave single belt slide Solution speed spiral gears sprocket square inch steam steel strain stroke stud gear thimble tooth transmit TRIGONOMETRICAL FUNCTIONS tubes turn valve velocity ratio windlass worm wheel
Δημοφιλή αποσπάσματα
Σελίδα 173 - Measures of Length 10 millimeters (mm.) = 1 centimeter (cm.) 10 centimeters = 1 decimeter (dm.) 10 decimeters = 1 meter (m.) 10 meters = 1 dekameter (Dm.) 10 dekameters = 1 hektometer (Hm.) 10 hektometers = 1 kilometer (Km.) 10 kilometers = 1 myriameter (Mm.) Measures of Surface 100 sq.
Σελίδα 175 - OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg...
Σελίδα 171 - OF TIME. 60 Seconds = 1 Minute 60 Minutes = 1 Hour 24 Hours = 1 Day 7 Days = 1 Week 28 Days = 1 Lunar Month...
Σελίδα 170 - Liquid Measure. — 4 gills = 1 pint; 2 pints = 1 quart; 4 quarts = 1 gallon; 31| gallons = 1 barrel; 2 barrels = 1 hogshead.
Σελίδα 171 - NUMBERS. 12 units = 1 dozen. 12 dozen — 1 gross. 12 gross = 1 great gross. 20 units = 1 score. PAPER. 24 sheets = 1 quire. 20 quires = 1 ream. 2 reams = 1 bundle. 5 bundles = 1 bale.
Σελίδα 170 - Measure 1,728 cubic inches = 1 cubic foot 27 cubic feet = 1 cubic yard 128 cubic feet = 1 cord (A cord of wood = 4...
Σελίδα 182 - That is, the exponent of a letter in the quotient is equal to its exponent in the dividend minus its exponent in the divisor. am For example, — = a"-*, a
Σελίδα 169 - Square Measure. 144 square inches 1 square foot, 9 square feet 1 square yard, 30J square yards 1 square rod, 40 square rods 1 rood, 4 roods 1 acre.
Σελίδα 173 - Such an electromotive force as would cause a current of one ampere to flow through a resistance of one ohm.
Σελίδα 7 - ... the power, multiplied by its distance from the fulcrum, is equal to the weight, multiplied by its distance from the same point.