Engineers' and Mechanics' Pocket-book ...Harper & Brothers, 1851 - 286 σελίδες |
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Σελίδα 128
... Resistance . The weight is the resistance to be overcome , the power is the requisite force to overcome that resistance . When they are equal no motion can take place . The Powers are THREE in number , viz . , LEVER , INCLINED PLANE ...
... Resistance . The weight is the resistance to be overcome , the power is the requisite force to overcome that resistance . When they are equal no motion can take place . The Powers are THREE in number , viz . , LEVER , INCLINED PLANE ...
Σελίδα 133
... resistance to the force . EXAMPLE . — The length of the back of a double wedge is 6 inches , ind the length of it through the middle 10 inches ; what is the pow- r necessary to separate a substance having a resistance of 150 lbs . ? As ...
... resistance to the force . EXAMPLE . — The length of the back of a double wedge is 6 inches , ind the length of it through the middle 10 inches ; what is the pow- r necessary to separate a substance having a resistance of 150 lbs . ? As ...
Σελίδα 148
... RESISTANCE OF METALS , & C . Weight or Force necessary to tear asunder 1 Square Inch , in Avoirdupois pounds . METALS . Copper 32500 Lead , cast 880 • wire 61200 milled 3320 Gold , cast 20000 Platinum , wire 53000 18000 Iron , cast ...
... RESISTANCE OF METALS , & C . Weight or Force necessary to tear asunder 1 Square Inch , in Avoirdupois pounds . METALS . Copper 32500 Lead , cast 880 • wire 61200 milled 3320 Gold , cast 20000 Platinum , wire 53000 18000 Iron , cast ...
Σελίδα 149
... resistance ? 2 × 2 × 60000 240000 lbs . , Ans . Also , in a rod of cast steel inch diameter , area of .1963 × 120000 = 23556 lbs . , Ans . The absolute strength of materials , pulled lengthwise , is in propor- tion to the squares of ...
... resistance ? 2 × 2 × 60000 240000 lbs . , Ans . Also , in a rod of cast steel inch diameter , area of .1963 × 120000 = 23556 lbs . , Ans . The absolute strength of materials , pulled lengthwise , is in propor- tion to the squares of ...
Σελίδα 182
... resistance of the wall . In sandy or loose earth , the angle G D H is generally 30 ° ; in firmer earth it is 36 ° , and in some instances it is 45 ° . The angle formed with the vertical by the earth , ADG , that ex- erts the greatest ...
... resistance of the wall . In sandy or loose earth , the angle G D H is generally 30 ° ; in firmer earth it is 36 ° , and in some instances it is 45 ° . The angle formed with the vertical by the earth , ADG , that ex- erts the greatest ...
Συχνά εμφανιζόμενοι όροι και φράσεις
12 inches 30 inches abscissa angle anthracite coal avoirdupois axis ball base beam body Boilers breadth bushels caloric Cast Iron cent centre of gravity chord circle circumference coal cone conjugate Copper cube root cubic feet cubic foot cubic inches cylinder decimals deflexion denominator depth Diam difference dimensions distance divide Engine equal EXAMPLE EXAMPLE.-What Fahrenheit feet in length feet per second feet stroke find the Area find the Solidity fluid force fraction frustrum given half the arc heat Hyperbola inches diameter inches in diameter Measures metal miles minute multiply ounces perpendicular Pine pipe plane pressure proportion quotient radius revolutions revolving rope RULE RULE.-Divide RULE.-Multiply segment shaft side specific gravity spindle square feet square inch square root steam subtract TABLE Continued temperature thickness tons transverse triangle velocity versed sine vessel VULGAR FRACTIONS Water Wheels Wrought Iron yards
Δημοφιλή αποσπάσματα
Σελίδα 172 - Otherwise, the length of tho pendulum is the distance from the point of suspension to the Centre of Oscillation?
Σελίδα x - To reduce a mixed number to an improper fraction. RULE. — Multiply the whole number by the denominator of...
Σελίδα ix - Divide by any number that will divide two or more of the given numbers without a remainder, and set the quotients, together with the undivided numbers, in a line beneath.
Σελίδα 191 - ... times the upper breadth, and the lower breadth at the midship division, and the upper and twice the lower breadth at the after division, for the sum of the breadths; then multiply the sum of the depths by the sum of the breadths, and this...
Σελίδα 20 - Multiply the number of terms, less 1, by the common difference, and to the product add the first term, the sum is the last term.
Σελίδα 23 - Fellowship is when different stocks are employed for any certain equal time. RULE.* — As the whole stock is to the whole gain or loss, so is each man's particular stock to his particular share of the gain or loss.t PROOF. — Add all the shares together, and the sum will be equal to the gain or loss, when the work is right.
Σελίδα 190 - ... above the upper deck"; the breadth thereof at the broadest part above the main wales, half of which breadth shall be accounted the depth of such vessel, and then deduct from the...
Σελίδα 130 - Weigh the denser body and the compound mass separately, both in water and out of it ; then find how much each loses in water, by subtracting its weight in water from its weight in air; and subtract the less of these remainders from the greater. Then...
Σελίδα 105 - FIND THE CUBE OR SQUARE ROOT OF A NUMBER CONSISTING OF INTEGERS AND DECIMALS. RULE. — Multiply the difference between the root of the integer part and the root of the next higher integer by the decimal, and add the product to the root of the integer given ; the sum will be the root of the number required.
Σελίδα x - ... in the first figures of the dividend, as usual. Let each remainder be a new dividend ; and for every such dividend, leave out one figure more on...