. Railway track and track work . train. Atthe end should be a heavy timber bumper designed to take the shock of acollision and set perpendicular to the inclined track. For bumpers on docksand wharves, the sill should be the same depth as the track stringersand the track in front of the bumpers should be well anchored down, whilea back brace may be put in between the bumping timber and one of the dockpiles or a special pile. At ore piers and coal trestles the track sometimesends with a grade of 25 to 30% for a length of from 15 to 30 ft. Stop Blocks. The use of stop blocks has been noted above,
. Railway track and track work . train. Atthe end should be a heavy timber bumper designed to take the shock of acollision and set perpendicular to the inclined track. For bumpers on docksand wharves, the sill should be the same depth as the track stringersand the track in front of the bumpers should be well anchored down, whilea back brace may be put in between the bumping timber and one of the dockpiles or a special pile. At ore piers and coal trestles the track sometimesends with a grade of 25 to 30% for a length of from 15 to 30 ft. Stop Blocks. The use of stop blocks has been noted above, and a movable stop is shownin Fig. 135. The steel tongue (A) rests on the rail and is connected by a loop(B) at its rear end with a small grooved wheel (C) journaled in the sides ofthe strap. Between the wheel and the back of the tongue is a wrought-ironshoe (D) pivoted to the loop at (E); this rests on the rail and in a groove in theflat tread of the wheel. When a car wheel runs up on the tongue and strikes //////,A *,,/„/..
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisheretcetc, booksubject
