Shop MathematicsTaylor-Holden, 1910 - 219 σελίδες |
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Σελίδα 12
... taken the circumferences , diameters , radii or number of teeth ( if a gear wheel ) ; only whatever dimension is taken for any driver the corresponding dimension must be taken for its follower . Thus for a train of wheels having four ...
... taken the circumferences , diameters , radii or number of teeth ( if a gear wheel ) ; only whatever dimension is taken for any driver the corresponding dimension must be taken for its follower . Thus for a train of wheels having four ...
Σελίδα 29
... taken on both sides of a cylinder the double depth for 1 inch pitch = .8660 × 2 = 1.732 . Fig.27 . 1.732 For any other pitch of thread the double depth = N where N is the number of the threads per inch of the required screw . Then the ...
... taken on both sides of a cylinder the double depth for 1 inch pitch = .8660 × 2 = 1.732 . Fig.27 . 1.732 For any other pitch of thread the double depth = N where N is the number of the threads per inch of the required screw . Then the ...
Σελίδα 53
... taken at .075 . The values for ƒ on well lubricated flat slides have been established by experiment as .08 to .10 , when not so well lubricated ƒ is given as .16 to .20 . The friction between a shaft bearing and its journal is axle ...
... taken at .075 . The values for ƒ on well lubricated flat slides have been established by experiment as .08 to .10 , when not so well lubricated ƒ is given as .16 to .20 . The friction between a shaft bearing and its journal is axle ...
Σελίδα 54
... taken as a close approximation to find the H. P. absorbed by friction in heavy shaft bearings : H. P. = WxfXNXX d 33,000 × 12 The above formula becomes H. P. WXfxNxdx.000008 . = W = load on bearing in pounds . d = dia . of shaft in ...
... taken as a close approximation to find the H. P. absorbed by friction in heavy shaft bearings : H. P. = WxfXNXX d 33,000 × 12 The above formula becomes H. P. WXfxNxdx.000008 . = W = load on bearing in pounds . d = dia . of shaft in ...
Σελίδα 55
... Motion between two bodies in contact always produces friction , and in determining the efficiency of any appliance or machine the friction must be taken into account . SHOP MATHEMATICS 55 Laws of friction Angle of friction.
... Motion between two bodies in contact always produces friction , and in determining the efficiency of any appliance or machine the friction must be taken into account . SHOP MATHEMATICS 55 Laws of friction Angle of friction.
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Συχνά εμφανιζόμενοι όροι και φράσεις
24 teeth amperes angle back gears balls 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 thread screw tooth transmit TRIGONOMETRICAL FUNCTIONS tubes turn valve velocity ratio windlass
Δημοφιλή αποσπάσματα
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 174 - OF CAPACITY 10 milliliters (ml.) = 1 centiliter (cl.) 10 centiliters = 1 deciliter (dl.) 10 deciliters = 1 liter (1.) 10 liters = 1 dekaliter (Dl.) 10 dekaliters = 1 hektoliter (hi.) 10 hektoliters = 1 kiloliter (kl.) MEASURES OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams = 1 dekagram (Dg.) 10 dekagrams = 1 hektogram (hg.) 10 hektograms = 1 kilogram (kg.) 18.
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 - 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 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 171 - MONEY. 10 mills = 1 cent. 10 cents = 1 dime. 10 dimes = 1 dollar. 10 dollars = 1 eagle.
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 173 - Such an electromotive force as would cause a current of one ampere to flow through a resistance of one ohm.