. Official proceedings . from another, a section insulator such as is shown in Fig. 18 isused. The construction described above and shown in the figuresis in general sufficient for use in open country. Where a morerigid construction is desired, iron poles may be used insteadof wood and two suporting cables instead of one. A photographof such a line is shown in Fig. 19. In freight yards or similar places where more than two The Single Phase Electric Locomotive. 43. tracks are required, a construction using iron bridges such asare frequently used at present for supporting signals may beemployed.
. Official proceedings . from another, a section insulator such as is shown in Fig. 18 isused. The construction described above and shown in the figuresis in general sufficient for use in open country. Where a morerigid construction is desired, iron poles may be used insteadof wood and two suporting cables instead of one. A photographof such a line is shown in Fig. 19. In freight yards or similar places where more than two The Single Phase Electric Locomotive. 43. tracks are required, a construction using iron bridges such asare frequently used at present for supporting signals may beemployed. A general view of this construction is shown in and the method of supporting the messenger cables in These bridges may be placed about 400 feet apart. Both the locomotive and the construction described above 44 Proceedings Railway Club of Pittsburgh. t**>
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