Maintenance of Way and StructuresMcGraw-Hill book comapny, Incorporated, 1915 - 451 páginas |
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Otras ediciones - Ver todas
Términos y frases comunes
American Railway Engineering average axle loads ballast section Bessemer bolts bottom bridges broken stone Canadian Pacific Railway cars cent cinders common spikes concrete cost creosote creosote oil cubic foot curves cylinder decay ditches Division Engineer divisional double track drain embankment expenses fill flange foreman gravel guard-rails head holes increased ingot installed joint Lake Erie length less load locomotive main track maintenance material metal miles miles per hour necessary operating organization Pacific Pennsylvania Pennsylvania Railroad piles pine pipe placed plant plate pressure rail rail-fastening Railroad Railway Engineering Association renewals road roadbed roadmaster rolled sand screw-spikes shown in Fig side signals single track slag slides slope speed splice-bar steel stone ballast subgrade superelevation SUPERVISOR surface temperature tie-plates tie-renewals timber traffic train treated treatment trestle untreated wear weight wheel width wood wooden yard York Central zinc chloride
Pasajes populares
Página 17 - GENERAL NOTICE. To enter or remain in the service is an assurance of willingness to obey the rules. Obedience to the rules is essential to the safety of passengers and employes, and to the protection of property.
Página 113 - ... inch above the surface of the oil — the creosote, calculated on the basis of the dry oil shall give no distillate below two hundred...
Página 208 - ... critical speed." A speed in excess of the critical speed, as well as a speed below the critical speed, will cause vibrations of less amplitude than those caused at or near the critical speed. (3) The longer the span length the slower is the critical speed and therefore the maximum impact on long spans will occur at slower speeds than on short spans. (4) For short spans, such that the critical speed is not reached by the moving train, the impact percentage tends to be constant so far as the effect...
Página 17 - The use of intoxicants by employes while on duty is prohibited. Their use, or the frequenting of places where they are sold, is sufficient cause for dismissal.
Página 138 - The number of the heat and a letter indicating the portion of the ingot from which the rail was made shall be plainly stamped on the web of each rail, where it will not be covered by the splice bars. The top rails shall be lettered "A...
Página 21 - No (4) They shall employ men as the (.™le.). directs. They must treat employes with consideration, and see that they properly perform their duties. They must discharge men who are incompetent or neglect their duties, but in no case shall they discharge men without cause. They must keep the required records of the time of their men and of the materials used.
Página 405 - I. MAINTENANCE OF WAY AND STRUCTURES. II. MAINTENANCE OF EQUIPMENT. III. TRAFFIC EXPENSES. IV. TRANSPORTATION EXPENSES. V. GENERAL EXPENSES.
Página 19 - ... (4) They shall, as necessary, employ men for carrying out the duties for which they are responsible. (5) They must know that foremen are familiar with the operating rules in regard to train signals and flagging, and that they fully understand and comply with them.
Página 80 - Timbers shall show one side all heart; the other side and two edges shall show not less than 75 per cent, heart, measured across the surface anywhere in the length of the piece.