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Tower Wagon for TV Outside U.T.A. Rates Approved: Broadcasts Basic Bus Fares Remain

10th August 1956, Page 41
10th August 1956
Page 41
Page 41, 10th August 1956 — Tower Wagon for TV Outside U.T.A. Rates Approved: Broadcasts Basic Bus Fares Remain
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.CMPLOYED as a radio link between outside-broadcast locations and the transmitting station by Granada TV Network, Ltd., Manchester, 3, a mobile tower wagon designed to carry equipment for a television outside-broadcast force has a telescopic collapsible mast of light alloy which can be erected on site in less than 15 mm. The mast equipment and bodywork were produced by the Eagle Engineering Co., Ltd., Warwick. and are mounted on a Bedford R-type 7-ton chassis with a 12-in. Baico extension which increases the wheelbase to 14 ft.

The triangular three-sectioned mast is pivoted at the rear of the chassis, and the tower is first erected in the closed position. The sections are then elevated, both operations being performed hydraulically. When the mast is fully extended the aerial is raised to a height of about 60 ft.

For, travelling, the tower is lowered to an almost horizontal position, and is accommodated on a bolster located between two side lockers. The overall length of the outfit is then 28 ft. and its height is 12 ft. 6 in. The unladen weight of the vehicle is approximately 4 tons 14 cwt., and in operating order the weight of the outfit is about 6 tons 7 cwt.

The erecting gear comprises twin double-acting rams mounted on a subframe, and 'a single-acting three-draw ram is employed for elevating the intermediate tower. This also raises the upper mast section •by means of a differential cable-and-pulley gear.

Two fold-down screw jacks are provided at the rear to enable the mast pivot to be levelled. A tripod at the base stabilizes the structure, and guy ropes are available for additional sup

port in bad weather. The mast weighs about 3 owl.

The turntable top carrying the paraboloid of the eentimetric-link equipment is driven by an electric motor and it rotatable through 360 degrees. The aerial transmission co-axial cable hangs clear of the tower, and is held by an outrigger arm.

The full-vision semi-forward-control three-man cab has a sliding door at the back to afford access to the mast gear. Lockers are covered with rubber matting to provide walkways, which are reached by folding steps at the rear. Sides of the body are extended rearwards of the lockers at cab-roof level and are panelled in Plymax.

This vehicle is accompanied to the broadcasting sites by a Land-Rover carrying auxiliary equipment and towing a generator to supply current.

BIGGEST JUNCTION OPEN

AROAD junction near Frankfurt, claimed to be the biggest in Europe, has been opened to traffic. The cloverleaf arrangement makes it possible for vehicles to turn on to either carriageway of the Cologne-Frankfurt and KasselKarlsruhe motorways without having to stop or cross other streams of traffic. The diameter of the junction is nearly 11 miles,

NEW PERKINS SCHOOL

AN instruction school is to be started by Perkins Diesel (Overseas) Pty., Ltd., Dandenortg, Victoria, Australia. It is expected to open in mid-October and will at first take 12 students a week. Equipment is being sent out from England.

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Organisations: NEW PERKINS SCHOOL

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