. Building a railroad; a handbook devoted to a new, speedy and economical method of performing every operation from grading right-of-way to ballasting and maintaining track . averaged 8 to 9-12 ft. bents, or100 ft. of completed trestle per day. The piles wereall provided from dead heads and sinkers whichthe American fished out of the river. They used70 lb. steel for temporary stringers, underneathregular ties, and 70 lb. steel to pass the materialcars over to build up the grade, pulling the temporarysteel stringers out and lining up the track when fillreached sub-grade. They thereby saved expe
. Building a railroad; a handbook devoted to a new, speedy and economical method of performing every operation from grading right-of-way to ballasting and maintaining track . averaged 8 to 9-12 ft. bents, or100 ft. of completed trestle per day. The piles wereall provided from dead heads and sinkers whichthe American fished out of the river. They used70 lb. steel for temporary stringers, underneathregular ties, and 70 lb. steel to pass the materialcars over to build up the grade, pulling the temporarysteel stringers out and lining up the track when fillreached sub-grade. They thereby saved expense ofpermanent stringers. The cost of caps, nails, andlabor was % per bent. Many large roads save the cost of this attachmentseveral times over in caring for one emergency, andit is entirely ample for every requirement of the smallerroad. 42 Building a Railroad Building or Razing Timber Bridges orOverliead Structures. Ditcher Building Timber Bridge The pile driver andshovel attachments aretaken off for this classof work. The machinethen becomes a loco-motive crane of nom-inal 5 tons machine worksfrom the top of a flatcar headed into thework by a work train. If building a bridge, thematerial is carried on flat cars back of the ma-chine car, and if razing a bridge or other structure,the material is loaded on empty cars back of themachine car. The machine moves freely back andforth over the flat car on the portable track sectionsunder its own power, and working in a full circle readilyhandles material from material cars to the front, orfrom front to the rear. No outriggers are required;clamping down chains are provided for chainingmachine to the car when necessary. Two individually operated friction drums providetwo lines that may be handled independently orsimultaneously, at thewill of the operator. Where circum-stances warrant, theAmerican can rundown onto the surfacetrack on the auxili
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