Handbook of the Steam-engine |
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Page 71
... power to immersed midship se to 1. With these proportions the speed was at the 15 knots per hour , so that to ensure such a spee like the ' Black Prince , ' it is necessary that there or 5 indicated horse - power for each square foot ...
... power to immersed midship se to 1. With these proportions the speed was at the 15 knots per hour , so that to ensure such a spee like the ' Black Prince , ' it is necessary that there or 5 indicated horse - power for each square foot ...
Page 72
... horse - power , attained a speed on trial of 14.356 knots per hour , the engines exerting an actual power of 5,469 horses . The screw was 24 feet diameter , and 30 feet pitch , or , in other words , the twist of the blades was such that ...
... horse - power , attained a speed on trial of 14.356 knots per hour , the engines exerting an actual power of 5,469 horses . The screw was 24 feet diameter , and 30 feet pitch , or , in other words , the twist of the blades was such that ...
Page 79
... power equal to that which the coal itself loses . The natural agent employed in winding up the springs which our ... horse power is a dynamical unit , or a unit of force , which is represented by 33,000 lbs . raised one foot high in a ...
... power equal to that which the coal itself loses . The natural agent employed in winding up the springs which our ... horse power is a dynamical unit , or a unit of force , which is represented by 33,000 lbs . raised one foot high in a ...
Page 80
... horse power , it is easy to tell what pressure must be exerted on the piston in order that this power may be exactly attained ; for it must be the 10th of 33,000 or 3,300 lbs .; since 3,300 lbs . mul- tiplied by 10 feet is equivalent to ...
... horse power , it is easy to tell what pressure must be exerted on the piston in order that this power may be exactly attained ; for it must be the 10th of 33,000 or 3,300 lbs .; since 3,300 lbs . mul- tiplied by 10 feet is equivalent to ...
Page 106
... power communicated in generating that velocity of motion in the body . Example 1. - Suppose a waggon on a railway to ... horse - power . The mechanical energy with which the fly - wheel of an engine is generally endowed , is equal to the ...
... power communicated in generating that velocity of motion in the body . Example 1. - Suppose a waggon on a railway to ... horse - power . The mechanical energy with which the fly - wheel of an engine is generally endowed , is equal to the ...
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Common terms and phrases
40 inches 64 inches air-pump crosshead amount atmosphere beam body boiler Boulton and Watt breadth carbonic acid cast-iron centre chimney coal coefficient column condenser constant number crank in inches crank pin cube root cubic feet cubic foot cubic inches cylinder in inches decimal denominator diagram taken diameter of cylinder dimensions divisor engine equal Example 1.-Let 40 Example 2.-Let 64 Example 2.-What Fahrenheit feet per second figure FIND THE PROPER flue friction furnace gibs and cutter given heating surface horse-power hour inch of section inches diameter logarithm motion moving multiplied pence pendulum pipe pounds proper depth proper diameter proper thickness proportion pump quantity quotient resistance revolutions per minute rule RULE.-Multiply the diameter screw sectional area shillings side lever side rod specific heat speed square feet square inch square root strength stroke subtract temperature tion tubes valve velocity vertical vessel water-line weight wheel
Popular passages
Page 211 - 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 278 - Rule : 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 nominal horse-power of the engine.
Page 103 - ... 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.