Some Information Concerning Gas LightsJohn Conrad & Company J. Maxwell, printer., 1816 - 190 Seiten |
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Accum acid ammoniacal liquor answer apertures Argand lamp asphaltum bituminous coal Boulton and Watt burners burning burnt bushels of coal candle of six cannel coal carbonat carbonic carbonic acid cast iron chaldron of coal charcoal cistern coal gas coal produced coal tar cock coke combustion condensed cubic feet cubic foot diameter distillation ditto ditto employed equal escape essential oil evaporated examined expense experiments feet of gas fire flame fuel furnace gallons gas light gas-holder gases gaso gasometer given quantity half hundred weight inches inflammable iron pipe lime lime-water manufactory mean to say Messrs mode Newcastle coal nuisance obtained parish lamps pit-coal pitch pounds of coal procured purifier purpose quantity of coal quantity of gas quantity of light quantity of water reservoir retort sheet iron smell smoke stop-cock street tallow tallow candle tion tube vapour varnish vessel whole wick Winsor's stove
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Seite 42 - For each candle consuming at the rate of 4-10ths of an ounce of tallow per hour, the 2500 candles burning upon an average of the year two hours per day, would, at one shilling per pound, the present price, amount to nearly the sum of money abovementioned.
Seite 109 - Lee, are lighted with the gas from coal. The total quantity of light used during the hours of burning, has been ascertained, by a comparison of shadows, to be about equal to the light which...
Seite 23 - It is, therefore, consumed much more slowly on all occasions, and particularly when employed for producing intense melting heats. The only inconveniences that attend it are, that, as it consumes, it leaves much more ashes than the other, and these much heavier too, which are, therefore, liable to collect in such quantity as to obstruct the free passage of air through the fire ; and further, that when the heat is very intense, these ashes are disposed to melt or vitrify into a tenacious, I drossy...
Seite 42 - Lee at about £550 per annum ; in which some allowance is made for this apparatus being made upon a scale adequate to the supply of a still greater quantity of light, than he has occasion to make use of. He is of opinion, that the cost of attendance upon candles would be as much, if not more, than upon the gas apparatus ; so that in forming the comparison, nothing need be stated upon that score, on either side. The economical statement for one year then stands thus : Cost of...
Seite 22 - Carron foundery, this bufinefs is done in the open air, and in the moft fimple manner. A quantity of coal is placed on the ground, in a round heap, of from twelve to fifteen feet in diameter, and about two feet in height. As many as...
Seite 40 - This latter operation may likewise be instantaneously performed, throughout the whole of the burners in each room, by turning a cock, with which each main is provided, near its entrance into the room. The burners are of two kinds : the one is upon the principle of the Argand lamp, and resembles it in appearance ; the other is a small curved tube with a conical end, having three circular apertures or perforations, of a thirtieth of an inch in diameter, one at the point of the cone, and two lateral...
Seite 41 - Is. 4d per cwt. and will therefore amount annually to the sum of £93. The quantity of tar produced from each ton of cannel coal is from eleven to twelve ale gallons, making a total annual produce of about 1250...
Seite 40 - The gas-burners are of two kinds ; the one is upon the principle of the Argand lamp, and resembles it in appearance ; the other is a small curved tube with a conical end, having three circular apertures or perforations, of about a thirtieth of an inch in diameter, one at the point of the cone, and two lateral ones, through which the gas issues, forming three divergent jets of flame, somewhat like a fleur de Us.
Seite 41 - Philips and Lee's mill, will be 1250 x 2 = 2500 cubic feet of gas per day ; to produce which, seven hundred weight of cannel coal is required in the retort. The price of the best Wigan cannel (the sort used) is \!>\d.
Seite 40 - ... and each of the latter a light equal to two and a quarter of the same candles ; making therefore the total of the gaslight a little more than equal to that of 2,500 candles.