. Electric railway journal . ing to make thetrack construction independent of the street of building the track section ahead of the sideswhich were to be paved, thus obtaining a straight joint,the pavement was laid full width and, when the concretewas struck off with a template, the joint filler wasallowed to fall out of line. Joints should be staggered, as the ties act as crossbands and staggering tends to prevent cracks in thepavement. The heaviest cars operated over this line weigh 18tons. This method of construction was carried out at thefollowing costs: Salvage of 7 ft. o
. Electric railway journal . ing to make thetrack construction independent of the street of building the track section ahead of the sideswhich were to be paved, thus obtaining a straight joint,the pavement was laid full width and, when the concretewas struck off with a template, the joint filler wasallowed to fall out of line. Joints should be staggered, as the ties act as crossbands and staggering tends to prevent cracks in thepavement. The heaviest cars operated over this line weigh 18tons. This method of construction was carried out at thefollowing costs: Salvage of 7 ft. of 45-lb. rail at 1 cent per lb $ Labor, cutting Labor, welding Total cost per tie $ An Effective Rail-Joint Booster ADEVICE used to rehabilitate track in which lowjoints have developed and known as the DaytonRail-Joint Booster, was recently placed on the marketby the Dayton (Ohio) Mechanical Tie Company. The joint booster is an adaptation of the Dayton me-chanical tie described in the Electric Railway Jour-. section of track before and after having rail-joint BOOSTER INSTALLED NAL of Sept. 1, 1917 and Jan. 19, 1918. It consists ofa white oak block, 24 in. long, 10 in. wide and 5 in. block is imbedded in angles and supported by a i-in. bed of asphalt, which serves as a shock absorbingcushion in the same way that it does in the mechanicaltie. Covering the entire top of this block is a i-in. steelplate, on which the rail rests. Eight bolts with rail-clip heads pass through the plate and block and are
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