 | Thomas Curtis - Aeronautics - 1829 - 842 pages
...strokes which the engine makes in a minute, being the multiple of all these, and is thus obtained : — Multiply the square of the diameter of the cylinder in inches, by the pressure on each square inch of the piston, not expressed in pounds weight, but in the height of a... | |
 | sir Robert Spencer Robinson - 1839 - 216 pages
...quantity of water required for steam, find the volume of steam from a cubic foot of water by Rule 2nd. Multiply the square of the diameter of the cylinder in inches by half the velocity of the piston in inches, or six times the velocity in feet per minute, cut off two... | |
 | Artizan club (London, England) - Steam engineering - 1847 - 338 pages
...be found from the following rule. RULE. — To find the diameter of the top of the blast pipe. — Multiply the square of the diameter of the cylinder in inches by -017. Theproduct is the diameter of the top of the blast pipe in inches. Example. — The diameter... | |
 | John Bourne (C.E.) - Steam engineering - 1850 - 326 pages
...condensing and if working at four times the ordinary speed, may be ascertained by the following rule : — multiply the square of the diameter of the cylinder...root of the stroke in feet, and divide the product by 12 ; the quotient is the power of the high speed condensing engine in nominal horses power. To ascertain... | |
 | John Bourne (C.E.) - 1850 - 298 pages
...nominal horses power ? A. — The nominal power of an engine may be ascertained by the following rule : multiply the square of the diameter of the cylinder in inches by the velocity of the piston in feet per minute, and divide the product by 6000 ; the quotient is the number... | |
 | John Bourne - Steam engineering - 1851 - 346 pages
...expressed in words, gives the following rule : — RULE 2. — Multiply the square of the diameter of ilie cylinder in inches by the cube root of the stroke in feet; divide the product by 15 j the quotient expresses the number of cubic feet of steam room. Т Collective... | |
 | Septimus Norris - Locomotives - 1852 - 356 pages
...from the following ruleRULE — To find the diameter of the steam-pipe of the locomotive engine- — Multiply the square of the diameter of the cylinder in inches by -03- The product is the diameter of the steam-pipe in inchesExample — Required the diameter of the... | |
 | John Bourne (C.E.) - Steam engineering - 1853 - 344 pages
...the diameter of the cylinder in inches by the pressure on the piston in pounds per square inch, and by the cube root of the stroke in feet, and divide the product by 940 ; the quotient is the power of the engine in nominal horses- power, the engine working at the ordinary... | |
 | John Bourne (C. E.) - Steam engineering - 1854 - 292 pages
...root of the stroke in feet, and divide the product by 47 ; the quotient is the number of nominal horse power of the engine. This rule supposes a uniform...pressure upon the piston of 7 Ibs. per square inch. Mr. Watt estimated the effective pressure upon the piston 'of his 4 -horse power engines at 6- 8 Ibs.... | |
 | Robert Scott Burn - Technology & Engineering - 1854 - 214 pages
...of the cylinder, and multiply the number of square inches thus found by the cube-root of the length of the stroke in feet, and divide the product by 47 ; the quotient is the number of nominal horse-power of the engine." By the term " horse- power," as introduced by Watt, was meant the mechanical... | |
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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. 
