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231 cubic inches Anthracite Area Sq AREAS AND CIRCUMFERENCES articulated locomotive available tractive force Baldwin Locomotive Bituminous Boiler Pressure 100 cars weighing cent Circum CIRCUMFERENCES OF CIRCLES coal compound locomotives cylinders in inches Diam DIAMETER OF DRIVING driving wheels ENGLISH EQUIVALENTS ENGLISH MEASURES Feet Metres Feet flanged fluid ounces FORCE OF LOCOMOTIVES freight fuel grade Grammes hauling Hectolitres high-pressure cylinders horse-power Inch RATED TRACTIVE Kilo Kilogrammes locomotive and tender logarithm low-pressure cylinders Mallet Mallet Locomotives mantissa matter in combustible MEASURES WITH ENGLISH MEASURES WITH METRIC Metres Feet Metres Metres Inches Metres METRIC EQUIVALENTS METRIC MEASURES Mikado miles per hour Millimetres pair of driving Pressure 100 Lbs radius rail rated tractive force resistance due rigid wheel base sharpest curve square feet Square Inch RATED standard gauge steam superheated superheater temperature tons total heating surface Total resistance tractive force developed trailing wheels train truck VALVE weight ΙΟ
Popular passages
Page 45 - The installation of frogs upon the inside of curves is to be avoided wherever practicable, but where same is unavoidable, the above rule should be modified in order to make the gage of the track at the frog standard.
Page 41 - States it is customary to express track curvature in degrees noted by the deflection from the tangent measured at stations 100 feet apart. In other words, the number of degrees of central angle subtended by a chord of 100 feet rep-resents the "degree curve.
Page 50 - Whence xz is the logarithm of the zth power of m. QE D 181. Prop. 4. — The logarithm of any root of a number is the logarithm of the number divided by the number expressing the degree of the root. DEM. — Let a be the base, and x the logarithm of m. Then ar=m. Extracting the £th root we have a"= ^/m.
Page 49 - Whence x + y is the logarithm of mn. q. BD 10. Prop. 2. — Tlie logarithm of the quotient of two numbers is the logarithm, of the dividend minus the logarithm of the divisor.
Page 50 - The characteristic of the logarithm of any number greater than unity, is one less than the number of integral figures in the given number.
Page 11 - B; that with two pairs, C; that with three pairs, D; that with four pairs, E; and that with five pairs, F.
Page 50 - The characteristic of the logarithm of any positive number greater than one is positive and is one less than the number of digits before the decimal point. The characteristic of the logarithm of any...
Page 49 - Whence x — y is the logarithm m of — . QED n 180. Prop. 3. — The logarithm of a power of a number is the logarithm of the number multiplied by the index of the power. DEM. — Let a be the base, and x the logarithm of m.
Page 61 - ... a circle multiply its circumference by .31831. To find the area of a circle multiply the square of its diameter by .7854. To find the cubic inches in a ball multiply its cube of diameter by .5236. To find the revolutions of drivers per mile divide 1680 by the diameter of the wheel in feet. To find revolutions per minute multiply the speed in miles per hour by 28 and divide the product by the diameter of the driving wheel in feet. To find piston speed in feet per minute multiply revolutions per...
Page 44 - ... passenger comfort governs train speed on curves and that trains may be operated over curves at speeds somewhat greater than equilibrium speed. Advantage is taken of this condition in operating high-speed trains on track that must also carry slower traffic. Since the elevation required is a function of the train speed, this speed is the first element to be determined.