New Extendib le Semi-trailer
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AN extendible single-axle semi-trailer with a capacity of 12 tons has been introduced by Taskers of Andover (1932), Ltd. It is designed to give a maximum length of 38 ft. for the transport of selfsupporting loads 4nd close down to a minimum of 26 ft. as a platform for general loads. The frame is in two sections, the main members of the forward section sliding into 'the rear section members. To give lateral stability when closed, tapered pins in the rear members engage with sockets in the forward members. Locking of the members in intermediate positions is by the same method and the actual positions can be, varied according to operators' requirements. There is no need to uncouple brake or electrical connections when , extending or closing the chassis. In the case of brakes, a compensating-pulley mechanism is employed, whilst a springloaded cable winder situated at the rear is used to take up or let out the electric cable as necessary. The semi-trailer is equipped with a standard plate and kingpin for fifth wheel coupling and landing gear is of Taskers screw-down vertical type. Braking is by
single line vacuum and . tyres are 9.00-20.