RECORDING HOLDER CAUCE Fig. No. 41. Drip and Gate Marker-Mr. Francis Engel, Elizabeth Gas Works. In high pressure and long distance gas transmissions on country roads it is not always easy to find a place for a bench mark. In such cases we set opposite the point, but not too conspicuously, a 11⁄2 inch wrought iron pipe with a tee and short pieces of pipe branching from each branch of the tee to steady the pipe in the ground and make it hard to pull up. On the top of the pipe we also put a tee to give it a finished appearance; a 11⁄2 x 11⁄2 inch tee for drips, and a 11⁄2 x 1 inch tee for gates. This device will save time usually spent in searching. It can also be used as a hitching post. Continuous Test for Naphthalene-Mr. F. M. Travis, Torrington, Conn. The cut illustrates an apparatus for detecting naphthalene in the gas, and is self-explanatory. See Figure No. 43. THE PRESIDENT: We will now listen to a letter from Mr. A. G. Glasgow in relation to his report on Electrolysis. Mr. Glasgow is not here to give it. It will be published with the proceedings. I will ask the Secretary to read the letter which Mr. Glasgow has submitted concerning the report. Secretary Dunbar read the following letter: LONDON, S. W., September 26, 1906. Referring to Report of Electrolysis Committee. John Williamson, Esq., 157 Michigan Avenue, Chicago, U. S. A. MY DEAR WILLIAMSON : I find that I shall not be able to return to America in time to attend the next and last meeting of the American Gas Light Association, so I want you to take charge of the presentation of our Electrolysis report. I think we should arrange for the continuance of the committee by the new Gas Institute, inasmuch as this question of electrolysis is a very live issue, and information is continually accumulating regarding it, not only in America, but in all parts of Europe. It will, therefore, I think, be useful for us to submit additional reports from time to time (not every year) bringing the status of this subject up to date. I am very sorry indeed that I shall not be with you this year, and I wish the last meeting of the American Gas Light Association and the first meeting of the American Gas Institute all possible success. It is a case of "The King is dead! Long live the King!" With kind regard, Yours very sincerely, A. G. GLASGOW. SECRETARY DUNBAR: I will state that this report which was made to the American Gas Light Association has been printed and forwarded to the members of the association. Is that not right, Mr. Ramsdell? MR. RAMSDELL: Yes. SECRETARY DUNBAR: I move, Mr. President, that this report be included in the proceedings. Motion seconded. REPORT OF COMMITTEE ON ELECTROLYSIS. To the President, Officers and Members of the American Gas Light Association. SIRS : Your Committee on Electrolysis begs leave to submit the following Report. INTRODUCTION. Mr. Beal's Presidential Address at the Annual Meeting of this Association in 1902 contained the following recommendation: "I should like to see a Committee appointed which would make a careful investigation of this whole Problem [of Electrolysis] and render a Report in such form that it could be used by Managers in framing arguments for presentation before the Local Authorities." This recommendation of Mr. Beal led to the appointment of a Committee which is now constituted as follows: ARTHUR H. HALL, of New York, S. P. CURTIS, of Philadelphia, JOHN WILLIAMSON, of Chicago, and A. G. GLASGOW, of London, Chairman; and your Committee has been fortunate enough to secure the co-operation of ALBERT F. GANZ, M. E., Professor of Electrical Engineering at the Stevens Institute of Technology. The geographical distribution of the Members of your Committee, which has made their close collaboration impracticable, was doubtless intended to ensure that their work should cover a wide range of territory; and this Report has been framed in the endeavor to meet your reasonable expectations in this respect. It consists of Five Sections, namely: This report is limited to the consideration of direct-current electricity, and is, therefore, contingent upon future developments in the use of alternating-current electricity for traction purposes. There being no meeting of The American Gas Light Association after this report was prepared, it was presented to the American Gas Institute, as a Contribution from The American Gas Light Association. V. Summary and Conclusions. Your Committee advances no new theories and can suggest no new remedies. It avoids controversial treatment, and deals. solely with the indisputable facts that have been developed by experience. To this end, the Committee's endeavor has been to establish authoritatively the universal state of the art of electric traction with reference to Electrolysis. When this is. accomplished, the logical conclusion becomes self-evident, and is the same in all countries. SECTION I. THEORY OF ELECTROLYTIC CORROSION. By Professor Ganz. Electric conductors are divided into two classes, namely: 1. Metallic conductors, which transmit electric currents without chemical decomposition, and 2. Electrolytic conductors, or electrolytes, which transmit electric currents by a corresponding transfer of ions in a solution, thus producing chemical decomposition at the electrodes. The metals are the most common metallic conductors. Chemical compounds in solution, which can be decomposed by an electric current, are electrolytic conductors or electrolytes. Pure water has such a high resistance that it may practically be considered a non-conductor. Water is made conducting by the addition of salts or acids in solution, and conduction through water is therefore always electrolytic. For the present purposes we need only consider the electrolytes consisting of salts dissolved in water. The conducting terminals by which the current is led into. and out of an electrolyte are called electrodes. The electrode by which the current enters is the anode, and the one by which the current leaves is the cathode. |