The Mechanical Engineer's Pocket-book: A Reference Book of Rules, Tables, Data, and Formulae, for the Use of Engineers, Mechanics, and Students |
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Contents
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Common terms and phrases
alloy amount angle average axis base body boiler calculated capacity carbon cast cause cent centre circle coal coefficient column compression constant containing copper cubic cubic feet cylinder determined Diam diameter difference distance divide effect efficiency elastic engine equal evaporation experiments feet figures flow foot force formula given gives greater half head heat horse-power hour increase iron length less limit load loss material maximum mean measured metal minute multiply obtained pipe plate pounds practice pressure proportion quantity radius ratio resistance rivets root rope rule says side specific square inch standard steam steel strain strength stress surface taken temperature tensile strength term tests thickness tons tubes units varies velocity volume weight wire
Popular passages
Page 756 - The conditions of the boiler and furnace in all respects should be, as nearly as possible, the same at the end as at the beginning of the test. The steam pressure should be the same, the water level the same, the fire upon the grates should be the same in quantity and condition, and the walls, flues, etc., should be of the same temperature.
Page 758 - The analysis of the flue gases is an especially valuable method of determining the relative value of different methods of firing, or of different kinds of furnaces. In making these analyses great care should be taken to procure average samples, since the composition is apt to vary at different points of the flue...
Page 758 - Smoke Observations. — It is desirable to have a uniform system of determining and recording the quantity of smoke produced where bituminous coal is used. The system commonly employed is to express the degree of smokiness by means of percentages dependent upon the judgment of the observer. The committee does not place much value upon...
Page 98 - Troy pound of the Mint. It is of brass of unknown density, and therefore not suitable for a standard of mass. It was derived from the British standard Troy pound of 1758 by direct comparison.
Page 758 - Calorific Tests and Analysis of Coal. — The quality of the fuel should be determined either by heat test or by analysis, or by both. The rational method of determining the total heat of combustion is to burn the sample of coal in an atmosphere of oxygen gas, the coal to be sampled as directed in Article XV of this code.
Page 819 - ... a = area of piston in square inches, n = number of strokes per minute, or twice the number of revolutions per minute.
Page 482 - If any number of forces acting at a point can be represented in magnitude and direction by the sides of a POLYGON taken in order, they are in equilibrium.
Page 92 - Measure . . 60 seconds = 1 minute ; 60 minutes = 1 hour ; 24 hours = 1 day ; 7 days = 1 week ; 365 days = 1 year ; 366 days = 1 leap year.
Page 758 - S refer to the proportions of carbon, hydrogen, oxygen, and sulphur, respectively, as determined by the ultimate analysis. It is desirable that a proximate analysis should be made, thereby determining the relative proportions of volatile matter and fixed carbon. These proportions furnish an indication of the leading characteristics of the fuel and serve to fix the class to which it belongs. As an additional indication of the characteristics of the fuel, the specific gravity should be determined....
Page 757 - From this sample two one-quart, air-tight glass preserving jars, or other air-tight vessels which will prevent the escape of moisture from the sample, are to be promptly filled, and these samples are to be kept for subsequent determinations of moisture and of heating value and for chemical analyses. During the process of quartering, when the sample has been reduced to about 100 pounds, a quarter to a half of it may be taken for an approximate determination of moisture.
Bibliographic information
| Title | The Mechanical Engineer's Pocket-book: A Reference Book of Rules, Tables, Data, and Formulae, for the Use of Engineers, Mechanics, and Students |
| Author | William Kent |
| Edition | 5 |
| Publisher | Wiley, 1895 |
| Original from | Harvard University |
| Digitized | 19 Sep 2007 |
| Length | 1100 pages |
| Export Citation | BiBTeX EndNote RefMan |