. The street railway review . rs£>f/? r/fp jf/i/v. \ N. ®^ 1,;, > \ \ \\ 1 \ \ J 6 I m : I >-)-. ./ g, >- /^^S-. OVERHEAD LINE WORK. The various standards for pole and span erection arc shown inthe accompanying plates. The reference letters have the followingsignificance: A. 9/i6-in. seven strands galvanized steel cable. B. Single pull off; body ^-in. malleable iron japanned with ^- in. insulated stud bolt and brass ear with Detroit lip pull off; body of malleable iron japanned, with •%-in. insulated stud bolt and brass ear having Detroit tinned tap: body m
. The street railway review . rs£>f/? r/fp jf/i/v. \ N. ®^ 1,;, > \ \ \\ 1 \ \ J 6 I m : I >-)-. ./ g, >- /^^S-. OVERHEAD LINE WORK. The various standards for pole and span erection arc shown inthe accompanying plates. The reference letters have the followingsignificance: A. 9/i6-in. seven strands galvanized steel cable. B. Single pull off; body ^-in. malleable iron japanned with ^- in. insulated stud bolt and brass ear with Detroit lip pull off; body of malleable iron japanned, with •%-in. insulated stud bolt and brass ear having Detroit tinned tap: body made of brass with 5-^-in, cap screw and lock washer. BB. FB. C. Pole collar; made from y^-. x i^-in. iron clamped around the pole with fs-in. machine bolt and ^<-in. x ly^ bolt for fastening the insulator. D. D Insulator. DD. Double D insulator. F. No. o seven strands weather proof copper cable. G. H-i- seven strands galvanized steel cable. H. Straight line hanger body with brass ear with Detroit lip and 5^-in. insulated stud Same as H except with stronger No. I B. S. weather proof co
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
