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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40 Wall street Acetylene ACETYLENE-GAS American Gas Light Arch streets assignor assignor of one-half avenue boiler Boston Broad and Arch burner candle power carbonic carbonic acid Carburetted Carburetted Water Gas cents per thousand Charles Charles H City Coal Gas Committee Conn cost cubic feet cylinder Edgerton standard Electric Light England exhauster experiments Filed Apr Filed Dec Filed Feb Filed Jan Filed July Filed June Filed Mar Filed Nov Filed Oct Filed Sept fuel Gas and Electric Gas Company Gas Engine Gas Light Association GAS-ENGINE GAS-LIGHTING George George W heat Henry inch James John Journal of Gas Main street Manager Mass N. Y. Filed Naphthalene October 19 October 20 Ohio P. O. Box paper Pentane Philadelphia pipe piston pounds prepayment meter President pressure purifying question Report Robert Secretary Serial steam Superintendent tests Treasurer Trustees tube United Gas Improvement valve vapor Water Gas Welsbach William H York
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Seite xli - C. should not be less than 0.6235 nor more than 0.626 as compared with that of water of maximum density. The density of the Pentane when gaseous, as compared with that of hydrogen at the same temperature and under the same pressure, may be taken. This is done most readily and exactly by Gay-Lussac-s method, under a pressure of about half an atmosphere and at temperatures between 25° and 35°.
Seite 74 - Indicator-diagrams taken under proper conditions and with good instruments are diagrams of energy on which the ordinates measure the varying pressures in the cylinder, corresponding to the positions of the piston as measured off by the simultaneous abscissas of the diagram ; while the area represents the work done by the steam on the piston of the engine.
Seite xli - ... of (1) strong sulphuric acid, (2) solution of caustic soda. After these treatments it is to be again distilled, and that portion is to be collected for use which comes over between the temperatures of 25° and 40°. It will consist chiefly of pentane, together with small quantities of lower and higher homologues whose presence does not affect the light of the lamp.
Seite 31 - If continuous and of equal heights it is " regular ashlar" if discontinuous it is " broken-range? " irregular" or " random ashlar." (These three terms are practically synonymous.) If continuous but of unequal height it is simply range work or block-in-course. If the stones are not "squared" but have hewn joints perpendicular to the face, and making any angles with each other, it is " dressed rubble," and if unhewn or in a natural state, simply "rubble.
Seite xl - ... that the whole surface of the flame beneath the tube C may be seen at the photoped through the opening. " The lamp should be adjusted by its levelling screws so that the tube E, as tested with a plumb-line, is vertical, and so that the upper surface of the steatite burner is 353 millimetres from the table. A gauge is provided to facilitate this latter measurement. The tube C is brought centrally over the burner by means of the three adjusting screws at the base of the tube D. This adjustment...
Seite 29 - From its derivation ashlar apparently means large, square blocks; but practice seems to have made it synonymous with "cut -stone," and this secondary meaning has been retained for convenience.
Seite xli - ... hydrocarbons belonging to other groups and having a higher photogenic value, such as benzene or amylene, must be avoided. Their presence may be detected by the following test: Bring into a stoppered...
Seite 29 - when the dressing on the joints is such that the distance between the general planes of the surface of the adjoining stones is one-half inch or more, the stones properly belong to this class...
Seite 12 - Richardson moved that the report be accepted and that the Secretary cast the ballot of the Association for the election of the officers named.
Seite xxxix - The exterior tube l> communicates with the interior of the ring-burner by means of the connecting box above the tube E and the bracket F on which the burner B is supported. A conical shade G is provided. This should be placed so that the whole surface of the flame beneath the tube G may.