Machinery carrying semi-trailer of 15-ton payload
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• Hoy Trailers, of Bridge Works, Skimpot Road, Dunstable, Beds, has extended its range of single-knock-out-axle machinery-carrying semi-trailers with a new model of 19.25-ton gross trailer weight and 15-ton nominal payload.
This follows the introduction late in 1970 of knock-out axle machinery carriers of 10-, 12and 14-ton payloads. As in the case of the earlier trailers, the 15-ton payload model is built to designs formerly manufactured by Hands Trailers Ltd.
The main frame of the latest model is of 10in. by 3.51n. rolled steel channel members, with cross-members of 5in. by 3M. rolled steel joist, and longitudinal flitch plates. The tubular 10-stud heavy-duty axle is carried on laminated slipper-ended road springs, the rear eyes of the springs being located by shackle pins to cast brackets. These castings, which slide out of the frame brackets to detach the axle, are secured by locking pins incorporating handgrips. No tools are required, other than supporting jacks, to complete the detachment of the axle.