Specialized Equipment for the Builder
Page 36
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AS the Building Exhibition, which closes at Olympia, London, tomorrow, has not the support of the Society of Motor Manufacturers and Traders, the exhibits of interest to readers of "The Commercial Motor are confined to low-powered tractors and certain equipment.
The Tutz 1 dumper-dozer makes its first appearance. This machine has a crawler track and is powered by a Petter two-cylindered air-cooled oil
engine which develops 10 b.h.p. A drawbar pull of 1,600 lb. is claimed.
The rubber-jointed tracks are 6 ins. wide, but 8-in, wide tracks can be supplied if required. Ground pressure with the standard equipment is given as 7i lb. per sq. in., or with 8-in. tracks 5i lb. per sq. in.
Bucket capacity is 14 cubic. ft. flat, and the area of the dozer blade which the tractor is designed to take is 74 sq. ft. The maker is Tutz Tractors, Ltd., 294, High Street, Acton, London, W.3.
For towing, mowing and rolling, there is the Nash three-wheeled tractor, which is shown in two forms. Model A has a Coventry Victor 34 h.p. air-cooled flat-twin engine, and Model B has a B.S.A. 5 h.p. unti„ The bucket-tipper body on Model A is of 44-cubic-ft. capacity. A 74cubic-ft.. trailer body is also available. A three-speed and reverse gearbox is common to both models. These machines are made by H. R. Nash, Ltd., London Road, Dorking, Surrey.
An unusual application for a Lister truck is to be found in the Lister foursection tower wagon. The framework of the ladder is of wood, rigidity being built into the structure by the use of steel tie-bolts and elliptical steel strainers. The respective sections are extended by hydraulic means, pressure being built up either by a hand pump or by power from the truck.
Fully extended, the maximum height from ground level to the platform is 24.ft. 6 ins. The tower ladder is carried on a channel-steel structure provided with four screw-down jacks to maintain stability when the tower is in use. R. A. Lister and Co., Ltd., Dursley, Gloucester, is the maker.
Something new in bulk-cement containers is exhibited by Thos. W. Ward, Ltd., A4bion Works, Sheffield. Two containers are shown on the mock-up chassis, but units can be mounted on a short-wheelbase chassis. Alternatively, a trailer could be used to carry additional units.
The containers are of the hopper type and measure 6 ft. 6 ins, in diameter by 6 ft. 6 ins, in overall height. They are fabricated from Fin, steel plate, with 5/ I6-in. dished steel top and 4-in, steel conical bottom. There is a 16-in, manhole and each hopper has a capacity of 34 tons. The discharge time into a receiver up to 35-ft above ground level is from 17 to 20 minutes' for both containers.
Each hopper is provided with air lines, complete with connections and a 14-in, relief valve, cement strainer, and an air line for pressure discharge through a 3-in. outlet. When twin hoppers are used, the main air line from