The Calculation of Horsepower Made Easy

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F.J. Drake & Company, 1905 - Horse-power (Mechanics) - 80 pages
 

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Page 64 - The calorie is the amount of heat necessary to raise the temperature of one gram of water one degree centigrade.
Page 66 - To find the area of a circle, multiply the square of the diameter by .7854.
Page 69 - The logarithm of a number is the exponent of the power to which it is necessary to raise a fixed number, in order to produce the first number.
Page 35 - J4 to l/2 or ~y\ inch, being naturally larger the larger the engine. The clearance volume or the percentage clearance on the other hand is the actual volume contained between the face of the valve and the face of the piston when the latter is at the end of the stroke plus the volume of the steam port...
Page 5 - The standard of horsepower is the amount of energy that will raise a weight of 33,000 pounds one foot high in a minute, or 550 pounds one foot high in one second. An engine or motor exerting one actual horsepower will raise a weight of 10 pounds 3,300 feet in one minute, but will require 10 minutes to raise 330,000 pounds one foot high.

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