Browse Items (25 total)

  • Tags: technology

COMM 8.021.tif
A detailed diagram of the sea plow on 'Operation Sea Plow'.

COMM 8.020.tif
This diagram shows a sectioned specimen of deep-sea, light-weight coaxial cable of the kind likely to be used by Cable & Wireless Ltd. and the Canadian Overseas Telecommunication Corporation in the Anglo-Canadian Telephone Cable in 1961.

The same…

COMM 8.014.tif
Mr R.G. Bell at the 110v motor generator change-over panel. Pictured behind him is 110v mgs, with 10v mgs nearest the camera. On his left is a 110v distribution board. On his right are the main supply switches and battery switchgear. On the extreme…

COMM 8.017.tif
During April 1965, C.S. Stanley Angwin (2,500-ton gross) surveyed the route for the Tortola-Bermuda telephone cable which will provide the northern outlet for the 21-million W.I. dollar project in the Eastern Caribbean to improve inter-island and…

COMM 8.016.tif
This photograph shows survey operations on board the C.S. Recorder in the Mediterranean for the Mat I telephone cable project. The ship was on charter to Italcable for the work. On the foredeck, you can see the survey sled.

COMM 8.019.tif
The Hong Kong/Guam section of SEACOM was laid during September and October of 1965. Assisted by Cable & Wireless Ltd, repair ship Cable Enterprise Mercury completed the lay into Guam on 22 October 1965. This photograph shows a repeater entering the…

COMM 6.010.tif
Porthcurno cable station (Cable & Wireless). View of cable chain relay equipment with commutation panels and test equipment. In the foreground, one 'wing' of the control console can be seen (bottom right) with FMVM panels in the centre rear. This…

COMM 6.008.tif
A blurry photo of a piece of equipment used at Cable & Wireless, Porthcurno.

COMM 6.004.tif
Cable & Wireless telegraph form

COMM 6.003.tif
A general view of the main cable relay equipment room at Porthcurno Cable Station, looking west and showing the control consul, monitoring teleprinters, etc. in the foreground.

COMM 6.011.tif
This dish is 90-feet across and is 'locked' onto a satellite 23,000 miles over the Atlantic Ocean. The surface of the dish is polished aluminium. The faint signals are reflected onto the centre of the tripod can be seen built onto the dish.

Photo…

COMM 6.006.tif
TWO COPIES OF PHOTO

One of seven dishes at Goodhilly. It is tuned to a satellite 23,000 miles over the Atlantic Ocean. Its surface is of polished aluminium. Signals are reflected onto the centre of the tripled which can be seen built onto and…

COMM 6.007.tif
This photograph shows the complex nature of the aerial at Goonhilly Earth Station. In the centre of the picture can been seen one of the two large concrete counterbalancing weights. Each aerial can be moved in any direction on the horizontal plane…

COMM 8.018.tif
The Hong Kong/Guam section of SEACOM was laid during September and October of 1965. Assisted by Cable & Wireless, Ltd., repair ship Cable Enterprise Mercury completed the lay into Guam on 22 October 1965.

This photograph shows the final splice on…

COMM 8.031.tif
General view of Goonhilly Earth Station taken from the road.

COMM 8.035.tif
Women workers in telephone exchange (Holborn Manual Exchange)

COMM 8.013.tif
Engineer Mr K.E. Finney adjusting the balance on Porgibthree (the No. 3 cable between Porthcurno and Gibraltar). The light reflected from the mirror on the fork coil records the duplex balance disturbance on the scale above.

COMM 6.001.tif
DUPLICATE OF COMM 6.005

View from Porthcurno of Marconi Signal Station at Poldhu Transmitter on the Lizard Peninsula, from where Eastern Telegraph Co conducted industrial espionage.

General view of Poldhu Wireless Station. These 300-foot timber…

COMM 8.001.tif
Ladies operating a single-current Morse key. Note the 'sounder' backed by a reflecting device to localise the sound. In front of the key can be seen instruments for adjusting the signals and a galvanometer which indicates the presence or otherwise of…

COMM 8.004.tif
An operator servicing the equipment at Cable & Wireless.
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