Shop MathematicsTaylor-Holden, 1910 - 219 σελίδες |
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Σελίδα 61
... strain for leather belting is given as 3,200 pounds per square inch of cross section ; using a factor of safety of 11 , 3,200 11 = = 290 lbs . = the safe strain . Now for belting inch thick and 1 inch wide , 290X55 lbs . strain per inch ...
... strain for leather belting is given as 3,200 pounds per square inch of cross section ; using a factor of safety of 11 , 3,200 11 = = 290 lbs . = the safe strain . Now for belting inch thick and 1 inch wide , 290X55 lbs . strain per inch ...
Σελίδα 62
... strain on the belt than that given above , as low as 30 pounds being given by some belt makers and users . This would correspond to a linear velocity of over 1,100 F. P. M. per H. P. for each inch of width , but about 800 F. P. M. per ...
... strain on the belt than that given above , as low as 30 pounds being given by some belt makers and users . This would correspond to a linear velocity of over 1,100 F. P. M. per H. P. for each inch of width , but about 800 F. P. M. per ...
Σελίδα 64
... strain of 55 lbs . per in . in width , what H. P. can be transmitted by the belt ? 2. A double belt 20 in . wide runs over a 4 ft . dia . pulley at 180 R. P. M. Find H. P. that the belt will transmit . 3. A single belt 24 in . wide runs ...
... strain of 55 lbs . per in . in width , what H. P. can be transmitted by the belt ? 2. A double belt 20 in . wide runs over a 4 ft . dia . pulley at 180 R. P. M. Find H. P. that the belt will transmit . 3. A single belt 24 in . wide runs ...
Σελίδα 65
... strain per in . of width at 3,500 F. P. M. ? 7. How many H. P. can be transmitted by a 4 in . belt , 35 lbs . strain , at 4,800 F. P. M. ? 8. How many H. P. can be transmitted by a 24 in . double belt , over an 8 ft . driver at 115 ...
... strain per in . of width at 3,500 F. P. M. ? 7. How many H. P. can be transmitted by a 4 in . belt , 35 lbs . strain , at 4,800 F. P. M. ? 8. How many H. P. can be transmitted by a 24 in . double belt , over an 8 ft . driver at 115 ...
Σελίδα 68
... strain for hemp rope is 6,000 pounds per square inch of cross section area ; for manila rope 3,000 pounds per square inch . To find the breaking strength , multiply the cross section area of the rope by 6,000 for hemp and by 3,000 for ...
... strain for hemp rope is 6,000 pounds per square inch of cross section area ; for manila rope 3,000 pounds per square inch . To find the breaking strength , multiply the cross section area of the rope by 6,000 for hemp and by 3,000 for ...
Άλλες εκδόσεις - Προβολή όλων
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.