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 77
Page 34
... produces 2.25 lbs . of water the net heating power per lb. with this water in a state of vapor at 2120 F. , will be 21,462.5 heat units , this value being determined by a calcu- lation similar to that made for hydrogen in the circular ...
... produces 2.25 lbs . of water the net heating power per lb. with this water in a state of vapor at 2120 F. , will be 21,462.5 heat units , this value being determined by a calcu- lation similar to that made for hydrogen in the circular ...
Page 38
... produced during the distillation of the coal in the retorts . The molecule of naphthalene is composed of 10 atoms of carbon and 8 atoms of hydrogen , its chemical symbol being C1 , H .. It is a solid at ordinary temperatures and ...
... produced during the distillation of the coal in the retorts . The molecule of naphthalene is composed of 10 atoms of carbon and 8 atoms of hydrogen , its chemical symbol being C1 , H .. It is a solid at ordinary temperatures and ...
Page 59
... produced by burning any given sample of gas , the oxy- gen for combustion being derived from the atmosphere ? Describe some method of making iron oxide to be used for the removal of sulphuretted hydrogen from gas during its purification ...
... produced by burning any given sample of gas , the oxy- gen for combustion being derived from the atmosphere ? Describe some method of making iron oxide to be used for the removal of sulphuretted hydrogen from gas during its purification ...
Page 61
... produced in addi- tion to the gas in the manufacture of coal gas . In the manufacture of carburetted water gas . Name the principal pieces of apparatus necessary in a carbu- retted water gas works , and state briefly the function of ...
... produced in addi- tion to the gas in the manufacture of coal gas . In the manufacture of carburetted water gas . Name the principal pieces of apparatus necessary in a carbu- retted water gas works , and state briefly the function of ...
Page 79
... produced by burning any given sample of gas , the oxygen for combustion being derived from the atmosphere ? Ans . The highest temperature that can theoretically be obtained . by burning a gas in air is the temperature that will be ...
... produced by burning any given sample of gas , the oxygen for combustion being derived from the atmosphere ? Ans . The highest temperature that can theoretically be obtained . by burning a gas in air is the temperature that will be ...
Contents
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xxxi | |
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lxxvii | |
lxxxvi | |
xciii | |
cxxiv | |
clxxxiv | |
ccxvi | |
Other editions - View all
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...