The Gas Manager's Handbook: Consisting of Tables, Rules, and Useful Information for Gas Engineers, Managers, and Others Engaged in Manufacture and Distribution of Coal Gas ... |
Common terms and phrases
ammonia ammoniacal liquor angle-iron apparatus avoirdupois bars bisulphide blue lias bolts Bottom curb brickwork burner carbonic acid cast-iron cement Cent centre clay retorts coal gas coal tar coals and cannels Coke Colliery colour condenser constituent of coal consumption cross fracture Cube Roots cubic feet cubic foot Depth diam Diameter of Pipe distillation equal Fahr fawn colour feet of gas fire flanges furnace gallons gas coal Gas-Works glass globes governor grains heat holder hour hydraulic main hydrocarbons hydrogen illuminating power intumesces joints lamp lead light liquid measure Meter Registering mortar mouthpiece multiplied oxide of iron photometer plates pound pressure production puddle purifiers rivets sal ammoniac sand Scale of Gas scrubber Side sheets Silkstone specific gravity Square Roots standard stone sulphide sulphur sulphuretted hydrogen T-iron TABLE temperature testing tube valve vols washer weight Wigan wire gauge wrought-iron
Popular passages
Page 326 - An Act to repeal an Act of the present session of Parliament, intituled ' An Act for the more effectual Abolition of Oaths and Affirmations taken and made in various Departments of the State, and to substitute Declarations in lieu thereof, and for the more entire Suppression of voluntary and extra-judicial Oaths and Affidavits;' and to make other Provisions for the abolition of unnecessary Oaths.
Page 327 - An Act for the more effectual abolition of oaths and affirmations taken and made in various departments of the state, and to substitute declarations in lieu thereof; and for the more entire suppression of voluntary and extra-judicial oaths and affidavits ;" and to make other provisions for the abolition of unnecessary oaths.
Page 118 - The products both of the combustion of the gas and of the gradual volatilization of the ammonia salt go upwards through the trumpet-tube into a vertical glass cylinder, packed with balls of glass, to break up the current and promote condensation. From the top of the cylinder there...
Page 118 - Take 50 septems of the test-acid (which is greatly in excess of any quantity of ammonia likely to be found in the gas), and pour it into the glass cylinder, so as to well wet the whole interior surface, and also the glass beads. Connect one terminal tube of the cylinder with the gas supply, and the other with the meter, and make the gas pass at the rate of about half a cubic foot per hour. Any ammonia that is in the gas will be arrested by the sulphuric acid, and a portion of the acid (varying with...
Page 243 - The standard rate of consumption for the candles shall be 120 grains each per hour. Before and after making each set of ten observations of the photometer the gas examiner shall weigh the candles, and if the combustion shall have been more or less per candle than 120 grains per hour he shall make and record the calculations requisite to neutralize the effects of this difference.
Page 119 - ... and a drop of a solution of Silver Nitrate added ; should the liquid, instead of remaining perfectly clear, become cloudy, the washing must be continued until, on repeating the test, no cloudiness is produced.) Dry the filter with its contents, and transfer it into a weighed platinum crucible. Heat the crucible over a lamp, increasing the temperature gradually, from the point at which the paper begins to char, up to bright redness. When no black particles remain, allow the crucible to cool ;...
Page 114 - ... solution has become as dark as the standard. As the ascending bubbles interfere somewhat with the observation of the tint, it is best to turn off the tap when the colour seems almost deep enough ; compare the two ; turn on the tap, if necessary, for a few moments ; then compare again ; and so on, till the colour of the two liquids is the same. The volume of water which the measuring cylinder now contains is equal to the volume of gas which has passed through the lead solution.
Page 117 - The accurate performance of the operation of testing. To prepare the test-solutions the following processes may be used by the Gas Examiner : Measure a gallon of distilled water into a clean earthenware jar, or other suitable vessel. Add to this 94 septems of pure concentrated sulphuric acid, and mix thoroughly. Take exactly 50 septems of the liquid and precipitate it with barium chloride in the manner prescribed for the sulphur test. The weight of barium sulphate which 50 septems of the test-acid...
Page 252 - The difference of level of the water in the two limbs of the gauge is read by means of a sliding scale, the zero of which is made to coincide with the top of the lower column of liquid. The Gas Examiner having fixed the gauge gas-tight, and as nearly as possible vertical on the pipe of the lamp, and having opened the cocks of the lamp and gauge, shall read and at once record the pressure shown.
Page 118 - As soon as the colour changes (indicating that the whole of the sulphuric acid has been neutralized), read off the quantity of liquid remaining in the burette. To find the number of grains of ammonia in 100 cubic feet of the gas, multiply by 2 the number of septems of testalkali remaining in the burette, and move the decimal point one place to the left.