Proceedings of the American Gas Light Association ...Vol. 11-22 include: "United States patents relating to gas," "Current gas literature," and "New publications." |
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Results 1-5 of 66
Page 40
... increase the size of the inactive por- tion of the fire as well as the amount of surface presented to the air and steam . It is therefore important that no matter what size is being used the smaller pieces and slack should be screened ...
... increase the size of the inactive por- tion of the fire as well as the amount of surface presented to the air and steam . It is therefore important that no matter what size is being used the smaller pieces and slack should be screened ...
Page 42
... increased until at the end of from 48 to 96 hours it can no longer be fed through the clinkering door . The plates and water pan of the step grate are now put in , the clinker- ing door shut , the water started running on the grate ...
... increased until at the end of from 48 to 96 hours it can no longer be fed through the clinkering door . The plates and water pan of the step grate are now put in , the clinker- ing door shut , the water started running on the grate ...
Page 47
... increased as the rate at which the gas is made increases , and to be decreased as the rate at which gas is made decreases . In this way the pressure at the inlet of the exhauster , and consequently in the hydraulic main , is kept ...
... increased as the rate at which the gas is made increases , and to be decreased as the rate at which gas is made decreases . In this way the pressure at the inlet of the exhauster , and consequently in the hydraulic main , is kept ...
Page 49
... increase in pressure will be .011275.036 = 31 " , and the pressure at the top of the hill will be equal to the pressure at the bottom plus this difference , or to 15 plus 3 = 18 " . ( Trustees . ) · 10 7. In the answer to question No. 7 ...
... increase in pressure will be .011275.036 = 31 " , and the pressure at the top of the hill will be equal to the pressure at the bottom plus this difference , or to 15 plus 3 = 18 " . ( Trustees . ) · 10 7. In the answer to question No. 7 ...
Page 50
... increase in the weight of the liquid of 5 oz . per cubic foot . The tube is usually made of such a length as to contain a scale reading to 25 ° . When the hydrometer is placed in a liquid heavier than water , such as ammonical liquor ...
... increase in the weight of the liquid of 5 oz . per cubic foot . The tube is usually made of such a length as to contain a scale reading to 25 ° . When the hydrometer is placed in a liquid heavier than water , such as ammonical liquor ...
Contents
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lxxxvi | |
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cxxiv | |
clxxxiv | |
ccxvi | |
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Common terms and phrases
ACETYLENE-GAS American Gas Light ammonia amount apparatus assignor assignor of one-half bench blast pipe boiler brick burner burning candle power Carbonic Acid Carbonic Oxide carburetted cent charge clean clinker coal gas coal tar coke combustion Committee condensers cubic feet cubic foot damper Electric EXPLOSIVE-ENGINES Filed Apr Filed Aug Filed Dec Filed Feb Filed Jan Filed July Filed June Filed Mar Filed Nov Filed Oct Filed Sept fire flame Forstall fuel fuel value furnace gallon Gas Company Gas Engine Gas Light Association GAS-BURNER GAS-ENGINE heating power Hydrogen illuminating gas INCANDESCENT inch liquor Littlehales manufacture Marsh Gas Mass meter N. Y. Filed naphtha naphthalene October 17 October 20 Ohio oil-tar opening paper Philadelphia pipe pound pressure produced pump quantity question retort house retort ovens scoop secondary air Serial specific gravity spigot standard steam street temperature tion Trustees valve vapor water-gas weight William York
Popular passages
Page 46 - In defining the unit of heat it is necessary to specify the temperature of the water because the amount of heat necessary to raise the temperature of one pound of water through one degree varies slightly at different temperatures.
Page 143 - Weight. For any particular cement the weight varies with the degree of heat in burning, the degree of fineness in grinding, and the density of packing. Other things being the same, the harder-burned varieties are the heavier. The finer a cement is ground the more bulky it becomes, and consequently the less it weighs. Hence, the light weight may be caused by laudable fine grinding or by objectionable under-burning.
Page 142 - One of these cakes, when hard enough, should be put in water, and examined from day to day to see if it becomes contorted, or if cracks show themselves at the edges, such contortions or cracks indicating that the cement is unfit for use at that time. In some cases the tendency to crack, if caused by the presence of too much unslacked lime, will disappear with age.
Page 165 - Sand is mixed with lime or cement to reduce the cost of the mortar; and is added to lime also to prevent the cracking which would occur if lime were used alone. Any material may be used to dilute the mortar, provided it has no effect upon the durability of the cementing material and is not itself liable to decay. Pulverized stone, powdered brick, slag, or coal cinders may be used ; but natural sand is by far the most common, although fine crushed stone, or 'stone • screenings,' are sometimes employed...
Page 143 - If satisfactory results are obtained with a full dose of sand, the trials need go no further. If not, the coarser particles should first be excluded by using a no. 100 sieve in order to determine approximately, the grade the cement would take if ground fine; for fineness is always attainable, while inherent merit may not be.
Page 166 - The cleanness of sand may be tested by rubbing a little of the dry sand in the palm of the hand, and after throwing it out noticing the amount of dust left on the hand. The cleanness may also be judged by pressing the sand between the fingers while it is damp; if the sand is clean it will not stick together, but will immediately fall apart when the pressure is removed.
Page 165 - The sharpness of sand can be determined approximately by rubbing a few grains in the hand or by crushing it near the ear and noting if a grating sound is produced; but an examination through a small lens is better.
Page clxxix - GAS AND COAL DUST FIRING. A Critical Review of the Various Appliances Patented in Germany for this purpose since 1885. By ALBERT PUTSCH. 130 pp. Demy 8vo.
Page 187 - I move that the Secretary be instructed to cast the ballot of the Association for the election of the physicians whose names have been presented.
Page 128 - From this formula it will be seen that the amount of gas delivered will, everything else remaining the same, vary as the square root of the fifth power of the diameter of the pipe in inches. The...