Scribner's Engineers' and Mechanics' Companion: Comprising United States' Weights and Measures; Mensuration of Superficies and Solids ... The Mechanical Powers ... Steam and the Steam EngineHuntington and Savage, 1849 - 264 σελίδες |
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Σελίδα 12
... pressure of the atmosphere at the level of the sea . 1 lb. avoir . 66 1 oz . 1 dr . 66 7000 troy grains = 14 oz . 11 pwt . 16 18 66 5 / 1 / 1 66 = 5760 66 66 175 66 pounds = 175 66 ounces = 437 66 1 66 grains pound - = 311 gr . troy ...
... pressure of the atmosphere at the level of the sea . 1 lb. avoir . 66 1 oz . 1 dr . 66 7000 troy grains = 14 oz . 11 pwt . 16 18 66 5 / 1 / 1 66 = 5760 66 66 175 66 pounds = 175 66 ounces = 437 66 1 66 grains pound - = 311 gr . troy ...
Σελίδα 14
... pressure of the atmosphere at the level of the sea . 1 lb. avoir . 1 oz . 1 dr . 66 66 7000 troy grains = 14 oz . 11 pwt . 16 18 66 1 66 3 3 2 5760 175 66 66 66 pounds 175 437 66 66 ounces 1 66 grains pound = gr . troy . 51 66 66 Ï1 66 ...
... pressure of the atmosphere at the level of the sea . 1 lb. avoir . 1 oz . 1 dr . 66 66 7000 troy grains = 14 oz . 11 pwt . 16 18 66 1 66 3 3 2 5760 175 66 66 66 pounds 175 437 66 66 ounces 1 66 grains pound = gr . troy . 51 66 66 Ï1 66 ...
Σελίδα 104
... pressure on the plane , will be as the length , the height , and the base of the plane when the power acts parallel to the plane ; that is The weight will be as the plane ; The power will be as the height ; The pressure on the plane ...
... pressure on the plane , will be as the length , the height , and the base of the plane when the power acts parallel to the plane ; that is The weight will be as the plane ; The power will be as the height ; The pressure on the plane ...
Σελίδα 105
... pressure on the plane . base of plane . Wxh P = Pxl W = h Wxb p = And , General Principle . - As the length of the ... pressure of 800 lbs . upon the plane ? √852-182 = √8901 = 94.03 = length of the base . And 800 × 94.03 85 885 lbs ...
... pressure on the plane . base of plane . Wxh P = Pxl W = h Wxb p = And , General Principle . - As the length of the ... pressure of 800 lbs . upon the plane ? √852-182 = √8901 = 94.03 = length of the base . And 800 × 94.03 85 885 lbs ...
Σελίδα 106
... pressure may be overcome . When two bodies are forced from one another by means of a wedge in a direction parallel to its head . Rule . As the length of the wedge is to half its back , so is the resistance to the force . Or , multiply ...
... pressure may be overcome . When two bodies are forced from one another by means of a wedge in a direction parallel to its head . Rule . As the length of the wedge is to half its back , so is the resistance to the force . Or , multiply ...
Συχνά εμφανιζόμενοι όροι και φράσεις
angle avoirdupois axis axle base body brass breadth bushel cast iron center of gravity center of percussion centrifugal force chord circle Circum circumference coal conductor copper Cube Root cubic feet cubic foot cubic inches cylinder decimal denominator depth Diam discharged distance Ditto divide the product divisor engine engine-man Example.-Required Example.-What feet per second find the Area find the Center fluid friction frustrum gallons given number grains heat Hog's lard length lever linseed oil Litharge measure metal minute motion multiply number of teeth number of terms orifice ounces pendulum perpendicular pipe pitch Pounds pressure proportion quantity of water radius revolutions per minute rope Rule Rule.-Multiply screw Segment side specific gravity Spirits turpentine square inch square root steam steel subtract TABLE Tallow timber tons Tredgold troy turpentine unguent velocity versed sine VULGAR FRACTIONS wheel wood wrought iron yards Zink
Δημοφιλή αποσπάσματα
Σελίδα 14 - To reduce a mixed number to an improper fraction. RULE. Multiply the whole number by the denominator of the fraction, and to the product add the numerator for a new numerator, and place it over the denominator. 1. Reduce 127T^ to an improper fraction.
Σελίδα 162 - When no unguent is interposed, the friction of any two surfaces, whether of quiescence or of motion, is directly proportional to the force with which they are pressed perpendicularly together ; so that for any two given surfaces of contact there is a constant ratio of the friction to the perpendicular pressure of the one surface upon the other. Whilst this ratio is thus the same for the same surfaces of contact, it is different for different surfaces of contact. The particular value of it in respect...
Σελίδα 53 - To find the solidity of a sphere or globe. Rule.— Multiply the cube of the diameter, ce, by the decimal .5236.
Σελίδα 49 - Sphere is a body bounded by a uniformly curved surface, all the points of which are equally distant from a point within called the center.
Σελίδα 162 - When no unguent is interposed, the amount of the friction is, in every case, wholly independent of the extent of the surfaces of contact ; so that the force with which two surfaces are pressed together being the same, their friction is the same, whatever may be the extent of their surfaces of contact.
Σελίδα 46 - To find the solidity of a cube or right prism. Rule. — Multiply the area of the base by the perpendicular height, and the product will be the solid contents.
Σελίδα 18 - Having given the first term, the common difference, and the number of terms, to find the last term.
Σελίδα 18 - Find the greatest square number in the first or left hand period, place the root of it at the right hand of the given number, (after the manner of a quotient in division) for the first figure of the root, and...
Σελίδα 241 - ... per cent., and even less, in some kinds. Steel may be distinguished from iron by its fine grain; its susceptibility of hardening by immersing it, when hot, in cold water ; and with certainty by the action of diluted nitric acid, which leaves a black spot on steel, and on iron a spot which is lighter colored in proportion as the iron contains less carbon. There are many varieties of steel, the principal of which are : Natural steel, which is obtained by reducing the rich and pure kinds of iron...
Σελίδα 103 - The velocity given to find the space fallen through, to acquire that velocity. RULE. — Divide the velocity by 8, and the square of the quotient will be the distance fallen through to acquire that velocity.