Railway Locomotives and Cars, Volume 83Simmons-Boardman Publishing Corporation, 1909 |
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Common terms and phrases
American Locomotive Company apprentice arrangement axle Baldwin Locomotive belt boiler bolts brake briquets capacity cast cent Chicago coal committee Company compound locomotives connection cost coupler crank crank pin cutter cylinders diameter doors draft gear drill driving efficiency electric engine equipment feed fire firebox flange flues foreman frames Freight Car front fuel gauge grate area hopper hopper cars illustrated inches increased iron journal Lathe length load Loco locomotive Machine Tools manufactured master mechanic milling cutters Milling Machine motive power motor operation passenger Pennsylvania Railroad pipe piston plate pounds practice pressure rail Railway Club repair yard road roundhouse shaft shops shown sills smokebox spindle standard staybolts steam Steel Car superheated superheater temperature tests tion total heating surface tractive effort Trailing truck truck tubes valve gear vertical Walschaert valve gear weight
Popular passages
Page 67 - BULLETIN 290. Preliminary report on the operations of the fuel-testing plant of the United States Geological Survey at St. Louis, Mo., 1905, by JA Holmes. 1906.
Page 114 - By reasonable thrift we can produce a constant timber supply beyond our present need, and with it conserve the usefulness of our streams for irrigation, water supply, navigation, and power. "Under right management our forests will yield over four times as much as now.
Page 325 - ... and passing through the center of the throat curve. 4. Inside Gauge of Flanges is the distance between backs of flanges of a pair of mounted wheels measured on the base line.
Page 67 - The smoke produced has in no test been more dense with the briquets than with coal; on the contrary, in most tests the smoke density is said to have been less when briquets were used. 4. The use of briquets increases the facility with which an even fire over the whole area of the grate may be maintained.
Page 189 - Government now aggregates about $10,000,000 yearly, the saving on which, through securing coal containing less ash, alone amounts to $200,000. Since the Government has been purchasing coal on the basis of its heating value a growing interest has been manifest on the part of manufacturers and the general public in this important subject and a demand has been created for authentic information concerning the results accomplished. In response...
Page 69 - ... briquets were little affected by handling. They were loaded at St. Louis in open gondola cars and shipped to Altoona, where they were unloaded by hand and stacked. They were handled a third time in taking them to the firing platform of the test locomotive. After these three handlings they were still in good condition, very few were broken, and the amount of dust and small particles was practically negligible. CONCLUSIONS. The results of the tests justify the following conclusions...
Page 165 - The size of the valves upon a locomotive has been increased or decreased until one valve would just handle the maximum steam generation, and the locomotive heating surface being known, the formula was figured back to obtain the constant. Other special conditions were considered, such as the liability in locomotive practice to a not infrequent occurrence of the most severe conditions ; the exceptionally severe service which locomotive safety valves receive, and the advisability on locomotives to provide...
Page 164 - The direct conclusion in this is that existing rules and statutes are not safe to follow. Some of these rules in use were formulated before, and have not been modified since spring safety valves were invented, and at a time when 120 Ibs. was considered high pressure. None of these rules...
Page 164 - The uncertainty of the coefficient flow, that is, of the constant to be used in Napier's formula when applied to the irregular steam discharge passages of safety valves, has probably been largely responsible for the fact that this method of obtaining valve capacities has not been more generally used. To determine what this constant or coefficient of flow is and how it is affected by variations in valve design and adjustment, an extended series of tests has recently been conducted at the Stirling...
Page 192 - This is the special case shown in Fig. 1, where the cylindrical wall is subjected to circumferential stress only, as, for example, in the case of cylinders for hydraulic plungers, shrunk tubular hoops and rings, and rings and drums subjected to centrifugal action due to rotation about their axes. Birnie's formula is theoretically correct for this case, for tubes of any thickness, so long as the material is not stressed beyond the elastic limit. "/' For steel tubes, assuming Poisson's Ratio to be...