Shop MathematicsTaylor-Holden, 1910 - 219 σελίδες |
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Σελίδα xi
... per minute . f , coefficient of friction . ft.-lb. , foot pound . ft . , foot or feet . lb. , pound . in . , inch or inches . pi . , pitch . MECHANICS Mechanics treats of forces and of the effects of SHOP MATHEMATICS ΧΙ.
... per minute . f , coefficient of friction . ft.-lb. , foot pound . ft . , foot or feet . lb. , pound . in . , inch or inches . pi . , pitch . MECHANICS Mechanics treats of forces and of the effects of SHOP MATHEMATICS ΧΙ.
Σελίδα 24
... pitch is used to designate either the number of threads per inch or the distance from the top of one thread to the top of the next ; hence in a single thread screw the lead is the same as the pitch , but in a double or triple thread ...
... pitch is used to designate either the number of threads per inch or the distance from the top of one thread to the top of the next ; hence in a single thread screw the lead is the same as the pitch , but in a double or triple thread ...
Σελίδα 25
... pitches , or leads of threads , either both right or both left hand threads . It will be seen from Fig . 23 that one turn of the large screw lifts the weight only the differ- ence between the leads of the large and small screws ; then ...
... pitches , or leads of threads , either both right or both left hand threads . It will be seen from Fig . 23 that one turn of the large screw lifts the weight only the differ- ence between the leads of the large and small screws ; then ...
Σελίδα 28
... pitch single threads respectively , with a pull of 5 lbs . , what length of lever will be required to raise a weight of 5,000 lbs . ? 25 P 36 " W -121 " Fig.26 . 17. What length of bar will be required to raise a building of 100 tons ...
... pitch single threads respectively , with a pull of 5 lbs . , what length of lever will be required to raise a weight of 5,000 lbs . ? 25 P 36 " W -121 " Fig.26 . 17. What length of bar will be required to raise a building of 100 tons ...
Σελίδα 29
... pitch is found by trigonometry and is equal to .8660 inch . If then the thread is 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 ...
... pitch is found by trigonometry and is equal to .8660 inch . If then the thread is 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 ...
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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.