Handbook of the Steam-engine |
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Page 83
... weight of 10 lbs . placed on the top of the valve itself . In the case of a set of blocks and tackle , say with 3 sheaves in each block , and , therefore , with 6 ropes passing from one block to the other , it is clear that.
... weight of 10 lbs . placed on the top of the valve itself . In the case of a set of blocks and tackle , say with 3 sheaves in each block , and , therefore , with 6 ropes passing from one block to the other , it is clear that.
Page 115
... passing between the centre of suspen- sion and the centre of gravity . The number of vibrations made by pendulums of different lengths is inversely as the square roots of their lengths . The length of the pendulum which will make one ...
... passing between the centre of suspen- sion and the centre of gravity . The number of vibrations made by pendulums of different lengths is inversely as the square roots of their lengths . The length of the pendulum which will make one ...
Page 118
... passing over a pulley to draw the 10 lb. weight along an iron table . But if the surfaces are amply lubricated , the friction will only be from 4th to th of the weight . The friction of cast - iron surfaces in sandy water is about one ...
... passing over a pulley to draw the 10 lb. weight along an iron table . But if the surfaces are amply lubricated , the friction will only be from 4th to th of the weight . The friction of cast - iron surfaces in sandy water is about one ...
Page 176
... passes during the com- bustion into the gaseous state , and the carbonic acid is gaseous . This terminates the process when the layer of carbon is not so thick , and the supply of air not so small , but that oxygen in sufficient ...
... passes during the com- bustion into the gaseous state , and the carbonic acid is gaseous . This terminates the process when the layer of carbon is not so thick , and the supply of air not so small , but that oxygen in sufficient ...
Page 178
... passes unchanged through the fire ; then , if we reckon the specific heat of carbonic acid at 0.217 , of steam at 0.475 , of nitrogen at 0.245 , of air at 0.238 , and of ashes at 0.200 , and take into account the quantities of each ...
... passes unchanged through the fire ; then , if we reckon the specific heat of carbonic acid at 0.217 , of steam at 0.475 , of nitrogen at 0.245 , of air at 0.238 , and of ashes at 0.200 , and take into account the quantities of each ...
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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.