. Railway maintenance engineering, with notes on construction . Fig. 25.—Grading with Wheel Scrapers. should be first plowed deep, one to three furrows being thrownone way. Beginning at the ends of the furrows, the operatorshould grasp the lever with one hand, throwing it forward, and. Fig. 26.—Western Wheel Scraper in Position to Load. when the scraper is filled bear down on the lever until the latchcatches on the scraper-pan. It is desirable to have an extra orsnap team in the pit to assist in loading the larger scrapers hold-ing one-half a yard or more. GRADING 47 The horses should be kept
. Railway maintenance engineering, with notes on construction . Fig. 25.—Grading with Wheel Scrapers. should be first plowed deep, one to three furrows being thrownone way. Beginning at the ends of the furrows, the operatorshould grasp the lever with one hand, throwing it forward, and. Fig. 26.—Western Wheel Scraper in Position to Load. when the scraper is filled bear down on the lever until the latchcatches on the scraper-pan. It is desirable to have an extra orsnap team in the pit to assist in loading the larger scrapers hold-ing one-half a yard or more. GRADING 47 The horses should be kept at a fast walk while the scraperis being dumped. On banks of 6 ft. or less it is customary todump down hill over the end of the embankment. When thepoint of the pan reaches the end of the embankment, the backend of the pan is raised by the handle and lever until the pointof the pan catches on the ground; the team will then pull itover. Where the material is obtained from borrow pits alongside ofthe roadbed or in cuts where it is wasted with short hauls, and infact for all conditions of very short haul, slip or drag scrapers aregenerally used. These are shown in Fig. 27.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
