Identifier: belltelephone6667mag00amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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outh and feed tube into a four-inch wide trench furrowed out by the plowshare. Auxili-ary plows automatically widen the trench when re-peaters, amplifiers that recharge the signal every 20miles, pass through. Sea trials useful Sea trials for the 14-ton plow began in late 1966,and continued until last spring. Pulled through thefirmly caked clay by the Canadian cable repair shipand icebreaker, the John Cabot, the plow buriedpractice cable about two feet under the bottom-deep enough to be safe from commercial fishingtackle. But there were some bad moments. Twice a towingsling broke, and the plow tumbled over on its back.Once the plow crashed into a small uncharted reefand became stuck—like a snagged fish hook, ac-cording to one observer. As a result of such incidents,the equipment and plowing procedures were modi-fied and more trials were conducted before actualoperations got underway. With the approval of AT&Ts overseas partners andother owners of the two cables off the New Jersey
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, ^-J 1« Sldii III, a miniature submarine, found a safer palti for t/ie plowafter an unchartered reef was encountered on the bottom. Crewmen on the stern of the ship help to guide the plow as itis lifted off its mountings at the start of the operation. The plow is slowly lowered over the side of the John Cabot bya 30-foot-long crane. Divers wait below in a motor boat.

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