Handbook of the Steam-engine: Containing All the Rules Required for the Right Construction and Management of Engines of Every Class, with the Easy Arithmetical Solution of Those Rules, Constituting a Key to the 'Catechism of the Steam-engine.' |
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Results 1-5 of 89
Page 49
... nearly as we can to that which we suppose the cube root should be , and multiply it twice by itself , we shall at once see whether such trial number is too great or too small . Thus if we fix upon 33 or as the trial number , then we ...
... nearly as we can to that which we suppose the cube root should be , and multiply it twice by itself , we shall at once see whether such trial number is too great or too small . Thus if we fix upon 33 or as the trial number , then we ...
Page 67
... nearly equal to xa , the greater the length of the line A B , and the more numerous the fractional quantities successively cut off . But no extension of the operation short of infinity could make the portions cut off from xo equal to xa ...
... nearly equal to xa , the greater the length of the line A B , and the more numerous the fractional quantities successively cut off . But no extension of the operation short of infinity could make the portions cut off from xo equal to xa ...
Page 70
... nearly as possible the area of a cylin- der 55 inches in diameter , which is 2375 · 83 square inches . Example 3. - The steamer ' Black Prince ' has two direct- acting trunk engines , with cylinders equal to 1044 inches diam- eter , and ...
... nearly as possible the area of a cylin- der 55 inches in diameter , which is 2375 · 83 square inches . Example 3. - The steamer ' Black Prince ' has two direct- acting trunk engines , with cylinders equal to 1044 inches diam- eter , and ...
Page 71
... nearly 15 knots per hour , so that to ensure such a speed in a vessel like the ' Black Prince , ' it is necessary that there should be 41 or 5 indicated horse - power for each square foot of immersed ckward midship section of the hull ...
... nearly 15 knots per hour , so that to ensure such a speed in a vessel like the ' Black Prince , ' it is necessary that there should be 41 or 5 indicated horse - power for each square foot of immersed ckward midship section of the hull ...
Page 73
... nearly 2200 cylindric inches or solid cylinders 1 inch in diameter and 1 inch high ; 3300 spherical inches or balls 1 inch diameter ; and 6600 conical inches or cones 1 inch diam- eter and 1 inch high . ON THE RESOLUTION OF FRACTIONS ...
... nearly 2200 cylindric inches or solid cylinders 1 inch in diameter and 1 inch high ; 3300 spherical inches or balls 1 inch diameter ; and 6600 conical inches or cones 1 inch diam- eter and 1 inch high . ON THE RESOLUTION OF FRACTIONS ...
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Common terms and phrases
40 inches 64 inches amount beam body boiler Boulton and Watt breadth carbon carbonic acid cast-iron centre chimney coal column condenser crank in inches cube root cubic feet cubic foot cubic inches cylinder in inches decimal denominator diameter of cylinder divisor engine equal Example 1.-Let 40 Example 2.-Let 64 Example 2.-What Fahrenheit feet per second figure FIND THE PROPER flue fly-wheel fraction furnace given heating surface horse-power hour inch of section inches diameter logarithm mean pressure midship motion moving multiplied particles pence pendulum pipe pound proper depth proper diameter proper thickness proportion pump quantity quotient resistance revolutions per minute RULE.-Multiply the diameter screw sectional area shaft shillings side lever side rod signify specific heat speed square feet square inch square root STEAM-ENGINE strength stroke subtract supposed surface condenser temperature tion tubes valve velocity vertical vessel vulgar fraction water-line weight wheel
Popular passages
Page 177 - Constant of an engine is found by multiplying the area of the piston in square inches by the speed of the piston in feet per minute and dividing the product by 33,000. It is the power the engine would develop with one pound mean effective pressure. To find the horse-power of the engine, multiply the MEP of the diagram by this constant.
Page 424 - Oyclopsadia, worth in itself, for purposes of reference, at least a thousand volumes, is within the reach of all — the clerk, the merchant, the professional man, the farmer, the mechanic. In a country like ours, where the humblest may be called to responsible positions requiring intelligence and general information, the value of such a work can not be over-estimated.
Page 73 - ... is the same as that which a heavy body would acquire in falling from the height of an atmosphere composed of the gas in question of uniform density throughout.
Page 172 - ... of time. The first of these spaces is equal to the versed sine of the arc described by the moon in the same time, because that versed sine measures the translation of the moon from the tangent, produced by the centripetal force, and therefore may be computed, if the periodic time of the moon and its distance from the centre of the earth are given. The last space is found by experiments with...
Page 265 - Let 17 times the length of the grate in inches be divided by the square root of the height of the chimney in feet, and the quotient is the area for the aperture at the top of the chimney in inches.
Page 174 - To ascertain the nominal power by this method, multiply the square of the diameter of the cylinder in inches by the cube root of the stroke in feet, and divide the product by 47 ; the quotient is the number of nominal horses power of the engine.
Page 161 - ... inches =distance of the piston from the end of its stroke when the exhausting-port behind it is opened.
Page 195 - Multiply the square of the diameter of the cylinder in inches by the length of the stroke in inches, and by 171; and divide the product by the diameter of the driving-wheels in feet.
Page 23 - Multiply the complete divisor by the second figure of the root and subtract the product from the dividend.
Page 159 - ... any cover on the exhausting side, the port before the piston will be closed before that behind it is opened; and the interval between the closing of the one, and the opening of the other, will depend on the quantity of cover on the exhausting side of the valve. Again, the position of the piston in the cylinder, when these ports are closed and opened respectively, will depend on the quantity of cover that the valve has on the steam side. If the cover is large enough to cut the steam off when the...