. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 68 BELL SYSTEM TECHNICAL JOURNAL \ delphia, the ca]:)le is routed to Reading touching Pottstown, Phoenix- ville and other points. From Reading to Harrisburg the cable follows closely the William Penn Highway, although in sections it was neces- sary to obtain private right-of-way or to use longer routes removed from this highway on account of the lines of various kinds already in operation there. It is very desirable for economic reasons to keep the length of these cabl
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. 68 BELL SYSTEM TECHNICAL JOURNAL \ delphia, the ca]:)le is routed to Reading touching Pottstown, Phoenix- ville and other points. From Reading to Harrisburg the cable follows closely the William Penn Highway, although in sections it was neces- sary to obtain private right-of-way or to use longer routes removed from this highway on account of the lines of various kinds already in operation there. It is very desirable for economic reasons to keep the length of these cables as short as possible and in some cases this is absolutely necessary to obtain proper operating Fig. 7—Cable Line on Seven-Mile Stretch of Lincoln Highway, be dismantled later. Aerial wire line to How^ever, the most direct routes cannot always be used, for many obvious reasons, and this problem required careful consideration in all sections of the cable. Between Harrisburg and Pittsburgh the Allegheny Mountains had to be crossed and for this crossing only two general routes were found practicable, the first following an existing pole line which is the New York-Chicago telephone line through Lewuston, Altoona, and which we may call the northern route, and second a southern route through Shippensburg, Bedford and Ligonier for the most part along the Philadelphia-Chicago line and also the Lincoln Highway. A middle route which is now used for the Harrisburg-Pittsburgh line was not seriously considered as the country was too rough for econom- ical construction and maintenance and no important advantages were to be obtained. After careful surveys and cost studies, taking into account all existing and anticipated conditions, such as circuit. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ame
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
