A Catechism of High Pressure Or Non-condensing Steam EnginesClaxton, Remsen & Haffelfinger, 1874 - 200 páginas |
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A Catechism of High Pressure Or Non-condensing Steam Engines Stephen. [from old catalog] Roper Sin vista previa disponible - 2016 |
Términos y frases comunes
amount of lead anthracite coal atmosphere bars belt BIRMINGHAM WIRE GAUGE burn carbon cause cent centre chimney circle Circumfer circumference class of engines clean combustion condensed construction Corliss engines crank crank-pin cross-head cubic feet cubic foot cylinder boiler Diam difference draught eccentric economical equals evaporate expansion explosions Fahrenheit feed-water fire flue boilers foot force friction fuel furnace gallons gauge gine Governor grate-bars grate-surface heat HERO of Alexandria high-pressure holes horse-power incrustation Indicator Injector iron James Watt Knocking latent heat length lever means motion mud-drum multiplied number of revolutions OLIVER EVANS owners of steam-boilers packing pipe piston piston-rod plates pound of coal pounds of water pounds per square prevent pulley pump quantity quotient raise rivets safety-valve scale seams sensible heat shaft side slide-valve speed square inch steam users steam-pipe steam-ports stroke surface temperature thickness tube tubular boiler vacuum valve
Pasajes populares
Página 204 - States gallons is obtained by multiplying the square of its diameter by its length, or the capacity of any other sphere by the cube of its diameter and by the number of United States gallons contained as above in the unity of its measurement.
Página 64 - ... practice the rivets are usually made slightly too strong. Hence it is an established rule to employ a certain number of rivets per lineal foot. If these are placed in a single row, the rivet-holes so nearly approach each other that the strength of the plates is much reduced ; but if they are arranged in two lines, a greater number may be used, and yet more space left between the holes, and greater strength and stiffness imparted to the plates at the joint. The results of Mr.
Página 203 - The square of the diameter of a cylinder multiplied by its length, and divided by any other required length, the square root of the quotient equals the diameter of the other cylinder of equal solidity, or capacity.
Página 66 - ... is considerable, we may fairly assume the following relative strengths as the value of plates with their riveted joints : — Taking the strength of the plate at .... 100 The strength of the double-riveted joint would then be 70 And the strength of the single-riveted joint . . 56...
Página 210 - Care should be taken to examine the limb from time to time and to lessen the compression if it becomes very cold or purple; tighten up the handkerchief again if the bleeding begins afresh.
Página 203 - ... 12. The area of the segment of a circle equals the area of the sector, minus the area of a triangle whose vertex is the centre, and base equals the chord of the segment.
Página 204 - The capacity of a cylinder 1 inch in diameter and 1 inch in length, equals '002832 of an imperial gallon.
Página 208 - Directions for calculating the number of horse power which a belt will transmit. Divide the number of square inches of belt in contact with the pulley by two ; multiply this quotient by the velocity of the belt in feet per minute ; again we divide the total by 33,000 and the quotient is the mumber of horse-power.
Página 209 - A little above the knee, it passes to the back of the bone. In injuries at or above the knee, apply the compress high...
Página 20 - Thus, if at 7 miles' heigl.t it is 4 times lighter than at the earth's surface, at 14 miles' it will be 16 times, and at 21 miles' 64 times lighter; and, by similar calculation, the atmosphere has been found to reach the height of about 50 miles A column a foot square, reaching to the height of the atmosphere, is equal to 2116.8 Ibs. The heights of mountains have been, calculated by the use...