LUMINIUM TIPPERS CARRY FILLING
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INKER. filling for the construction f M4 motorway is being carried V. W. Drinkwater (Willesden) Ltd.. ; a fleet of aluminium-bodied rs. fhe bodies were built by ony Hoists Ltd. on Guy Warrior heeled chassis, tipping gear being ony HT8 stabilized link units.
o tippers have basic capacities of . yd., but are provided with exten
enabling the capacity to be and to 21 cu. yd. The 20 ft. long ght-alloy bodies, which were built metal supplied by The British linium Co. Ltd. to specification 5 WP, are supported on bearers of by 2 in. extruded aluminium channel in. These arc outrigged from the i-steel channel main longitudinals by ag to steel gussets. The floor is from 0.25-in.-thick plate, stitched to the aluminium bearers and ed to the longitudinals by cadmiumJ steel screws.
Jminium sheet, 0.128 in. thick, was for the body sides, the junction of ides with the floor being made by s of an extruded aluminium cove in, 4 in. in radius. running the length of the sides. The tops of the sides are stiffened with aluminium angle sections stitch-welded to the sheet. Upright stiffeners for the sides are also made from aluminium angle section welded to the sheet and at the bases of the sides, the uprights are gusscted to the cove section of the floor and to both sides of the bearer. giving a boxed-in section. The front of the bodies are similarly constructed from aluminium sheet with extruded section stiffeners.
Height of the sides is 28.75 in., but this
is increased to 4 ft. when extensions are fitted. These are made from aluminium sheet, stiffened top and bottom with aluminium angle section. Vertical stiffeners are aluminium channel sections stitchwelded to the sheet, web outwards, and also welded to the top and bottom rails. When the extensions are bolted to the bodies, two rear doors are fitted with a centre locking bar. For smeller capacity use, the rear doors and top extension are removed and a tailgate is fitted and secured by locking pads at the bottom.