File:Locomotive engineering - a practical journal of railway motive power and rolling stock (1899) (14757005401).jpg

Identifier: locomotiveengine12hill (find matches)
Title: Locomotive engineering : a practical journal of railway motive power and rolling stock
Year: 1892 (1890s)
Authors: Hill, John A. (John Alexander), 1858-1916 Sinclair, Angus, 1841-1919
Subjects: Railroads Locomotives
Publisher: New York : A. Sinclair, J.A. Hill (etc.)
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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s the same re-sult that admitting air to push out thepiston does. In both cases there is ^vacuum to be destroyed before pressurecan be had. Now we will take 5 pounds more fromthe auxiliary and put it in the brake cylin-der, and our pressure gage will run upsurprisingly. This is because the auxil-iary reservoir is from 3V2 to 4 times thevolume of the brake cylinder. If greatcare is taken to make a 5-pound continu-ous reduction each time, and the triplevalve is worn to a good bearing, does notleak, is well lubricated and moves freely.the increased brake cylinder pressurewill be about the same in each case. Thisis difficult, however, to do. The law un-der which compressed air works in thiscase is as follows: The change in pres-sure in the auxiliary and brake cylindervaries inversely as the volumes of theauxiliary and brake cylinder.—Ed.) Next convention of Air-Brake Men,Detroit, Mich., April nth. 12th and 13th.Apply early for your transportation. LOCOMOTIVE ENGINEERING February. iBciQ.
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Feliiuary, iSyg. LOCOMOTIVE ENGINEERING 89 Slid-Flat Wheel Reports. Editor: I am sending you Iwo blank forms ofreport for slid flat wheels—one for thetrain conductor and the other for the carinspector^—which I have had in use forsome time and have found of considerableaid in locating properly the blame forwheel-sliding where cars have long con-tinuous runs with different crews incharge. The conductors report, I think,tends to make them more observing forthe very fact that they know that such ablank must be filled out at the end of therun. Some roads of which I know make it arequirement that the train conductor shalltelegraph from the first station out oftheir terminal; but thi.s seems to me toplace upon the already over-burdenedwires of most roads telegraph system anunnecessary additional tax. E. W. Pratt,Gen. A. B. Insp., C. & N. W. Ry. Chicago, III. mind two or three roads which have goodmodern air compressors in their shops,and pipes through a large part of theiryards for s

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