. Official proceedings . Discussion—Metal Cross Ties. 239. 240 Proceedings Railway Club of Pittsburgh. easy to detect this wear, and as the shims do not all go at once,they can easily be renewed from time to time. We have alsodone some insulating by the use of wooden blocks under therails, but they did not last longer than a year or a year and ahalf. The track on the Pennsylvania Lines at Ems worth hasbeen insulated in this manner, and it is necessary to make occa-sional renewals. The first year very little was done, but thisyear we notice there has been quite a number of renewals. Another poi
. Official proceedings . Discussion—Metal Cross Ties. 239. 240 Proceedings Railway Club of Pittsburgh. easy to detect this wear, and as the shims do not all go at once,they can easily be renewed from time to time. We have alsodone some insulating by the use of wooden blocks under therails, but they did not last longer than a year or a year and ahalf. The track on the Pennsylvania Lines at Ems worth hasbeen insulated in this manner, and it is necessary to make occa-sional renewals. The first year very little was done, but thisyear we notice there has been quite a number of renewals. Another point which I want to bring out is, that a steeltie to be serviceable should be of such section that it can beused anv place. A section which has special shaping to admitthe rail or assist in holding it to gauge, is not suitable in switchesas each tie would have to be prepared as a separate piece. TheI beam tie is rolled in long lengths and can be cut to anylength and applied any place in any track. In other words, inorder to make the steel tie interesting,
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