WHITE AND COLOURED SANITARY FIXTURES
Manufactured by
ROYAL
Doulton
DOULTON SANITARY POTTERIES LIMITED
PYRAMID WORKS QUEENBOROUGH KENT ENGLAND.
·
ROYAL DOULTON vitreous china
and
WESTWOOD vitreous enamelled fireclayware
OBTAINABLE THROUGH
DODWELL & CO. LTD. P.O. Box 36,
Hong Kong.
WATTS & BAKER LTD.
16, Dublin Road,
Box No 2. Killiney Road P.O., Singapore, 9.
SINO-BRITISH (SIAM) LTD. 287, Surawong Road, Bangkok, Thailand.
into four departments: mixing of concrete, fabrica- tion and erection of reinforcement bars; form assembly; and dismantling precast panels from forms. The entire production flows in continuous process.
World-wide computer service
A world-wide computer service by means of which architects and consultants in various parts of the globe can receive rapid solutions to highly com- plex problems relating to design and dimensioning of ventilating and air-conditioning plant has been introduced by Swedish manufacturers, Svenska Flaktfabriken.
Such work, which has hitherto taken months or even years, can now be expedited within a matter of days, claims the company.
A computer with a core store capacity of 200,000 positions supplies the requisite calcula- tions via a high-speed terminal which can write 40,000 symbols a minute when relayed over a tele- phone cable. The new system has already been utilised for the supply of calculations to Sydney, Australia, where an SK subsidiary is doing sub- contract work on a new building for Qantas Air- lines.
Major advance in concrete prestressing techniques
A major advance in prestressing techniques is claimed by a British company, Taylor Woodrow Construction Ltd., for the design and development of a wire winding system which applies circum- ferential pressures far in excess of any previoulsy achieved to nuclear and other large concrete pres- sure vessels of cylindrical external shape.
The system, the result of two years research and development, will be used on one of the world's largest nuclear power stations, a 1250 mW station under construction at Hartlepool, northern England. Its hoop tendons, each with an ultimate strength of 13,630 tons, will be some 15 times more powerful than the largest prestressing tendons in use in the U.K., and will use some 8,500 miles (13,679km) of wire.
Under the system, bands of high tensile wire are wrapped in pre-formed channels in the outer surface of the vessel by a machine developed for the purpose, which contains all the equipment and material necessary for the complete winding process. The machine- a train consisting of two linked vehicles is supported on rails and travels round the vessel perimeter on a platform which can be raised or lowered to any predetermined position, and is locked during each winding operation.
Tendons are built up in layers of wire, with each layer individually anchored and precisely wound on the previous layer. The machine is designed to wind at 6 ft. (1.8 m) a second. Precise control is maintained on the wire tension, which is measured by load cells and continuously record- ed on a chart for future reference.
Far East BUILDER, October 1970