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Forward-discharge Mixer
Page 11
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!RESIDES the vehicles and equipment described in The Commercial Motor last week, the International Construction Equipment Exhibition at Crystal Palace (open until July 5) has a number of exhibits of interest from a commercial vehicle point of view. This is especially true of two items—a vehicle-mounted tower crane and a truck mixer.
The tower crane is mounted on a six-wheeler built by Mack Trucks (Britain) ,Ltd., and is shown by R. Y. Pickering and Co. Ltd. (Stand A.8). The vehicle has six-wheel drive and an unusual feature is that twin tyres arc fitted on the front (steering) axle. The tyres at this position are of different sizes—the outer ones 10.00-20, the inner ones 11.00-20. The reason for this is that when on the road, only the inner tyres are in contact with the ground so that normal steering is obtained but when the vehicle is on sites the outer ones also support the load and give improved traction. The engine fitted is a Leyland 0.680 and this drives through a Twin Disc torque converter, then g clutch and fivespeed gearbox manufactured by Mack Trucks (Britain) Ltd., who also made the axles. Total gross weight of the vehicle with crane and ballast is 30 tons.
A novel truck mixer is exhibited by Robert Hudson (Raletrux) Ltd. (Stand D.I8). The main feature of the unit is that the discharge point for the contents of the 4.5-cu.-yd. drum is at the front of the vehicle. Called the Frontomatic Transit Mixer, the unit has been designed by Hudson, using a Leyland 125 b.h.p. diesel engine, five-speed gearbox and front and (Left) The forwarddiseha4e truck mixer by Robert H nelson (Raletrux) Ltd. has a one-Man cab. rear axles. Drive' to the drum is hydraulic from a pump driven from the engine crankshaft. A one-man cab is fitted, this being mounted centrally in front of the engine and forward of the front axle.
Stothert and Pitt Ltd. is exhibiting a new 7-cu.-yd. agitator on Stand A34. This is available in two versions. one with drive to the drum from an independent diesel engine (as shown), the other with a power take-off drive. In both cases hydraulic drive is used, the agitating unit consisting of a central tubular shaft carrying eight paddles. Another truck mixer new to the U.K. is shown by Wood, Pritchett and Partners Ltd. (Stand A18). This is the Rodor unit made by Eurenius of Sweden, for whom the exhibitors have recently been appointed U.K. distributors. The unit shown—a 4-cu.-yd. model on a Thames Trader chassis—is the smallest of the range, maximum capacity made being 8 cu. yd. Conventional mechanical agitation is not used, the vessel being designed for transport of ready-mixed concrete from horizontal-can mixers up to 20 mites or for one hour.
Other vehicle-mounted equipment to be seen includes a Scammell Constructor with an oil-drilling rig shown by Consolidated Pneumatic Tool Co. Ltd. (Stand A80) and a Thames Trader shown by the Halifax Tool Co. Ltd. (Stand A64), with a rotary compressor driven from the vehicle engine mounted under the frame. On the latter vehicle the air receiver and other units are mounted between the cab and the vehicle's platform body, which is reduced in length.
Overseas exhibitors taking part in the exhibition include Moghurt Trading Co., of Hungary (Stand Al 14), which is showing a four-wheel dumper with a capacity of 7 tons.