The Elements of Mechanical Engineering, Volume 5Colliery Engineer Company, 1897 - Electrical engineering |
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Common terms and phrases
absolute temperature altitude angle annealed boiler bolts C₁ circle Circular Pitch coefficient column condensed conductor constant taken Cosine Sine Cosine Cotang Tang Cotang crank-pin cubic feet Cubic Foot cut-off cylinder D₁ Diam diameter ELECTROMOTIVE FORCE engine factor of safety Fahrenheit feet per second find the area following formula foot-pounds frustum gear given horsepower length less mantissa liquid load logarithm mantissa mean velocity multiplied number of revolutions number of seconds nuts orifice P₁ pounds per sq pounds per square pressure in pounds prism pulley pyramid or cone RATIO OF EXPANSION resistance revolutions per minute right pyramid rope Rule shaft Sine Cosine Sine specific gravity square foot square inch stays Steel strength t₁ taken from Table Tang Cotang Tang tangent thickness three figures total heat V₁ valve volume and pressure volume in cubic W₁ Weight per Cubic weir wwww ΙΟ ΙΟΙ ΙΟΟ
Popular passages
Page 66 - Formulas for Gravity Problems: — Let W= weight of body at the surface; w = weight of a body at a given distance above or below the surface...
Page 64 - To find the area of a segment of a circle: Rule. — Draw radii from the center of the circle to the extremities of the arc of the segment ; find the area of the sector thus formed, subtract from this the area of the triangle formed by the radii and the chord of the arc of the segment, and the result is the area of the segment.
Page 69 - The pressure upon the bottom of a vessel containing a fluid is independent of the shape of the vessel, and is equal to the weight of a prism of the fluid whose base is the...
Page 68 - IV = the weight of the body in pounds; v = its velocity in feet per second ; h = the height in feet through which the body must fall to produce the velocity v. W m = the mass of the body = — . (See formula 1O.) o The work necessary to raise a body through a height h is Wh.
Page 60 - The characteristic of the logarithm of an integral number, or of a mixed integral and decimal fractional number, is one less than the number of integral places in the number. The characteristic of the logarithm of a number entirely decimal fractional is negative and numerically one greater than the number of 0'« immediately following the decimal point.
Page 63 - Given the area of a circle, to find its diameter: Rule. — Divide the area by .7854, and extract the square root of the quotient.
Page 76 - Law. — The temperature remaining the same, the volume of a given quantity of gas varies inversely as the pressure.
Page 65 - To find the volume of the frustum of a pyramid or cone . Rule. — Add the areas of the upper base, the lower base, and the square root of the product of the areas of the two bases ; multiply this sum by one.third of the altitude.
Page 69 - The density of a body is its mass divided by its volume in cubic feet. Let D be the density ; then the density of a body is •iir TJ/ D = y.