Handbook of the Steam-engine |
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Page 4
... expressed by 30 , and three groups of hundreds are expressed by 300 . Here the ciphers operate wholly in advancing the 3 into a higher and higher position , which , however , other figures will equally suffice to do if there are any ...
... expressed by 30 , and three groups of hundreds are expressed by 300 . Here the ciphers operate wholly in advancing the 3 into a higher and higher position , which , however , other figures will equally suffice to do if there are any ...
Page 5
... expressed by numbers ; so that number is nothing more than the proportion of one magnitude to that of some other magnitude arbitrarily assumed as the unit . If , for example , we want to determine the magnitude of a sum of money , we ...
... expressed by numbers ; so that number is nothing more than the proportion of one magnitude to that of some other magnitude arbitrarily assumed as the unit . If , for example , we want to determine the magnitude of a sum of money , we ...
Page 9
... expressed in square inches . Multiplying any quantity by a number less than unity , it may be here re- marked , diminishes the quantity , just as multiplying by a num- ber greater than unity increases it . To multiply by gives the same ...
... expressed in square inches . Multiplying any quantity by a number less than unity , it may be here re- marked , diminishes the quantity , just as multiplying by a num- ber greater than unity increases it . To multiply by gives the same ...
Page 10
... expressed . For example , if we hold up 5 fingers of the one hand and 3 of the other , and are asked how much 5 and 3 amount to , we at once see that the number is 8 , as we either actually or mentally count the other 3 fingers from 5 ...
... expressed . For example , if we hold up 5 fingers of the one hand and 3 of the other , and are asked how much 5 and 3 amount to , we at once see that the number is 8 , as we either actually or mentally count the other 3 fingers from 5 ...
Page 11
... Then add together the figures found in the units column . If their sum be expressed by a single figure , write the figure under the units column , and commence the same process with the tens column . But if the sum of the figures in.
... Then add together the figures found in the units column . If their sum be expressed by a single figure , write the figure under the units column , and commence the same process with the tens column . But if the sum of the figures in.
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Common terms and phrases
40 inches 64 inches air-pump crosshead amount atmosphere beam body boiler breadth carbonic acid cast-iron centre chimney coal coefficient column condenser constant number crank in inches 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 fly-wheel fraction furnace gibs and cutter given heating surface horse-power hour inch of section inches diameter latent heat logarithm motion moving pence pendulum pipe piston rod pounds 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 specific heat speed square feet square inch square root strength stroke subtract temperature tion tubes valve velocity vessel vulgar fraction 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.