. Ingegnere americano e giornale ferroviario. Lavoro sulla sua propria responsabilità in una banda di lavaggio round-house. Il corso speciale-apprendista è tutto a destra fin dove va, ma un uomo di università non dovrebbe dimenticare il suo ideasand di università ritenere che non è migliore di chiunque altro e dovrebbe iniziare dove la sua conoscenza pratica gli permette di cominciare. I confronti che avete fatto sono eccellenti, e le domande sollevate saranno la causa di impostare molti giovani uomini pensare. C. H. Philadelphia e Reading Railway. Un interessante disegno di ruote motrici in acciaio fuso, presentato dal Sig. S. F. Prince, Jr. Superinte
1483 x 1684 px | 25,1 x 28,5 cm | 9,9 x 11,2 inches | 150dpi
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. American engineer and railroad journal . work on his own responsibility in a round-house washing gang. The special-apprentice course is all right asfar as it goes, but a college man should not forget his college ideasand feel that he is no better than anyone else, and he should beginwhere his practical knowledge allows him to begin. The comparisons you have made are excellent, and the questions raised will bethe cause of setting many young men thinking. C. C. H. Philadelphia & Reading Railway. An interesting design of cast-steel driving wheels, brought, out by Mr. S. F. Prince, Jr.. superintendent of motive powerand rolling equipment of the Philadelphia & Reading Railway, is illustrated by this drawing. With a view of overcoming thebreakage of cast-steel wheel centers because of shrinkagestresses, Mr. Prince designed this pattern to be cast solid;that is, without cutting the rims. The draught is all in onedirection, and the molders work is simple. There was atfirst considerable hesitation on the part of the foundrymen. Cast-Steel Driving Wheel with Uncut Rims.-Philadelphia &Reading Railway- to undertake the casting because of well-known difficultieswith the shrinkage of the castings in the mold. Mr. Princemet this by suggesting the use of sawdust between the spokesin the mold to offer an elastic resistance to the shrinkage ofthe spokes. The yielding of the mold seems to meet the re-quirements, and wheels cast in this way are now undergoingexperimental service. The construction of the wheel isclearly indicated in the engraving. If nearly an hour is required for testing and making runningrepairs on the air brakes of a freight train which is made upand ready to go, and the engine must be coupled to its trainfor this purpose, it is easy to see an opportunity to materiallyincrease the effectiveness of locomotive equipment in busytimes by installing yard testing plants in order to save thetime of the locomotives. Mr. H. F. Ball made this claim in adiscussion at Saratoga i
