Cassell's Engineer's Handbook: Comprising Facts and Formulæ, Principles and Practice, in All Branches of Engineering |
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Common terms and phrases
alternating current ampères angle average axis beam belt body boiler brass British thermal units carbon cast iron cent centre chimney coal coal gas coefficient compression condenser constant copper crank Cube Roots curve cwts cylinder deflection distance efficiency elastic elastic limit electric engine equal evaporated factor of safety feet per minute feet per second foot foot-lbs force friction fuel furnace gallons gases gravity heating surface hour hydraulic inch inches diameter increased lamps length lift lubricated machine maximum mechanical metal modulus motion ordinary pipe piston pitch plate poundals proportion pulley pump quantity radius ratio resistance revolutions per minute rivet rope safe load screw sectional area shaft speed square inch steam strength stress stroke temperature tensile strength tension tons per sq tubes unit valve velocity volts weight wheel wire wrought iron zinc
Popular passages
Page 272 - It is impossible by means of inanimate material agency to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects.
Page 272 - If an engine be such that, when it is worked backwards, the physical and mechanical agencies in every part of its motions are all reversed, it produces as much mechanical effect as can be produced by any thermodynamic engine, with the same temperatures of source and refrigerator, from a given quantity of heat.
Page 15 - The total energy of any body or system of bodies is a quantity which can neither be increased nor diminished by any mutual action of such bodies, though it may be transformed into any one of the forms of which energy is susceptible.
Page 271 - FIRST LAW OF THERMODYNAMICS. Heat and mechanical energy are mutually convertible, and heat requires for its production, and produces by its disappearance, mechanical energy in the proportion of...
Page 272 - It is impossible for a selfacting machine, unaided by any external agency to convey heat from one body to another at a higher temperature, or heat cannot of itself pass from a colder to a warmer body.
Page 520 - ... and to the remainder bring down the next period for a dividend. 3. Place the double of the root already found, on the left hand of the dividend for a divisor. 4. Seek how often the divisor is contained...
Page 520 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Page 219 - Experience has demonstrated that the wear increases with the speed. It is therefore better to increase the load than the speed. Wire rope is manufactured either with a wire or a hemp centre.
Page 448 - In studying this Fourth state of Matter we seem at length to have within our grasp and obedient to our control the little indivisible particles which with good warrant are supposed to constitute the physical basis of the universe. We have seen that in some of its properties Radiant Matter is as material as this table, whilst in other properties it almost assumes the character of Radiant Energy.
Page 41 - Conic, is the locus of a point which moves so that its distance from a fixed point is in a constant ratio to its distance from a fixed straight line.