File:Railroad structures and estimates (1918) (14572931669).jpg

Identifier: railroadstructur00orro (find matches)
Title: Railroad structures and estimates
Year: 1918 (1910s)
Authors: Orrock, John Wilson, 1870-
Subjects: Railroads Railroads
Publisher: New York, Wiley
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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d out of the wayautomatically. The track hopper for receiving coal from the cars is 10 ft.wide by 12 ft. long and is fitted, as shown in Fig. 232, with areciprocating apron which feeds the coal to an elevator of thegravity-discharge type. The elevator consists of V-shapedsteel buckets 36 in. long by 22 in. wide by 10 in. deep attachedevery 3 ft. between two strands of steel link chain fitted with4-in. rollers chamfered to admit of lubrication. It has a verticaltravel of 60 ft. from the hopper to the top of the pocket andthen a horizontal run of 33 ft. over the bin into which it dis-charges through two two-way chutes. The horizontal run hasa speed of 50 ft. per minute and a capacity of 50 tons per hour. The objection to a concrete structure for coaling plants is dueto the fact that most yards are susceptible to change and enlarge-ment and it is an exceedingly difficult matter to wreck a buildingof this character. There is little or no salvage and the cost ofdemolishing it is very high.
Text Appearing After Image:
(490) SAND HOUSES. 491 Sand Houses. At divisional and other points where engines are housed, pro-vision is usually made to supply locomotives with sand to use incase of shpping on heavy grades or on account of climatic condi-tions. This generally consists of a small wooden house with anextension wet sand storage bin and an elevated dry sand box ortower, into which the sand is elevated by manual labor or somemechanical hoisting device or by blowing it through a pipe bycompressed air, where it is stored and run by gravity to thesand box of the locomotive when required. The shed is gener-ally arranged so that the wet sand can be conveniently deliveredand shoveled from cars to the storage bin, the bin being suffi-cient to hold at least one carload. A small room is provided tohouse in the sand drier and hoisting mechanism, etc. Instead of hoisting the sand into elevated hoppers, a platformis often used on which dry sand is placed in buckets arranged sothat they can be easily handled by the

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