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"Air Lift" Speeds Cement Deliveries

9th January 1953, Page 113
9th January 1953
Page 113
Page 113, 9th January 1953 — "Air Lift" Speeds Cement Deliveries
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THE size of many large building sites has provided opportunities for new methods of handling material and Hall and Co., • Lid.. Croydon. which handles a large tonnage of cement, has for many years been investigating various means for speeding bulk transport of cement from the factory. Because delivery is often required at a point above ground level, the usual dust-tight tipping vehicles were found inadequate, and experiments were made with pressure deliveries by means of compressed air from a specially built container. A practical test was carried out with improvised equipment and cement was lifted to a height of 45 ft.

It was learned that similar tests were being made in Sweden, and after a reciprocal exchange of findings, the concern incorporated certain aspects of the Swedish design in a prototype vehicle, which proved highly successful. Later experiments resulted in minor improvements, British blowers being eventually substituted for compressors of Swedish The present design allows a payload of up to 7 tons, and the material, loaded at the cement works on to a Comm er forwardcontrol bulkcement carrier in 10-12 minutes, is transported to the building site and discharged under pressure into a jacketed silo; the latter operation takes about 20 Minutes. From the silo, Which has a capacity of 10 tons, cement can be drawn off in automatically measured and weighed quantities. This method has proved so successful that further outfits are being put into operation as fast as they can be manufactured.

Commer 5-ton and 7-ton underfloorengined chassis are suitable for this purpose. The engine provides ample power to drive all ancillary equipment, and the comparatively low centre of gravity ensures stability when the vehicle is negotiating uneven surfaces.

HEAVY-DUTY BUMPERS FOR N.C.B. ELECTRICS

ROME N.C.B. battery-electric bakery 1,—; vans recently sent to Hamilton, Ontario, were fitted with substantial heavy-duty bumpers at the rear. They give protection against the North American practice of pushing vehicles by the bumper instead of towing, this often being done to clear a parking space.

Smith's Electric Vehicles, Ltd., Gateshead-on-Tyne, can supply these bumpers, with or without fenders to protect the radiator, to any manufacturer for attachment to vehicles of various kinds. They can be made in steel or light alloy, are of welded construction and covered in chequer plate.

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Locations: Hamilton

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