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Oppenheimer poles are galvanised iron telegraph poles. They consist of three oval sections that collapse into each other telescope-style for transportation. Once extended, the joints between the sections are clamped with collars. The pole is fixed to a base for support with a u-bolt. The poles were used in the construction of the Australian ...
This telegraph line, which would stretch more than 3200 kms (or 2000 miles) required 36,000 poles, kilometers of wire, thousands of insulators, and the latest in battery technologies, and telegraphic equipment.
Beechworth Telegraph Station, Beechworth is open as a visitor's center. [3] Eyre Telegraph Station, a repeater station that operated from the 1870s until 1927, on the Adelaide to Albany, Australia telegraph line; Gawler Telegraph Station, Gawler, now a museum [4] Gulgong Telegraph Station was located at 5 Robinson Street in Gulgong, New South ...
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January 22, 1848 map in New York Herald showing extent of existing and planned North American telegraph lines. At this time, the service area for the United States reached Petersburg, Virginia in the south, Portland, Maine in the northeast, Cleveland, Ohio in the northwest, and as far west as East St. Louis, Illinois.
Installation of the lines and poles from Washington to Baltimore began on April 1, 1844, using chestnut poles 23 feet (7 m) high spaced 300 feet (90 m) apart, for a total of about 700 poles. [6] Two 16- gauge copper wires were installed; they were insulated with cotton thread, shellac, and a mixture of "beeswax, resin, linseed oil, and asphalt."
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Telegraph pole with spars, insulators and open wires on a now decommissioned Railway Pole Route, Eccles Road, Norfolk, United Kingdom. A pole route (or pole line in the US) is a telephone link or electrical power line between two or more locations by way of multiple uninsulated wires suspended between wooden utility poles. This method of link ...