Welded Pressings for Goods Bodies
Page 73
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THE new method of building lorry bodies on which Sir W. G. Armstnong, Whitworth and Co. (Engineers), Ltd., Newcastle-upon-Tyne, has been working was referred to in our issue dated October 28, and is now ready for introduction to the industry. Part of a body is being displayed this week at the Scottish Motor Show, Glasgow, on Stand 70, and on a full-size drop-side body for a maximum-load four-wheeler the weight saving is oboist 25 per cent.
Instead of heavy timber cross-bearers and longitudinal runners light crossbearers are provided, made from thin sheet-steel pressed up at the edges and welded at every corner. These are strengthened above the chassis-frame members by welding in two vertical stiffeners of box section, similarly made. Their upright position is preserved by diagonal tie-bars of sheet-steel strip, placed longitudinally. A skirting of 3i-in. by 1-in. by 1-in. angle is welded to the extremities of the cross-bearers, and hinge plates for the body sides are welded to the skirting. The body sides comprise channelsectioned frames (with mitred and welded corners), a wood filler being employed to which sheet-steel armouring is cemented by a special process. Plain tongued and grooved floorboards are fitted, and metal lining could, of • course, be provided if necessary. Rigidity and freedom from rattling are obtained by a sensible toggle fastening for the sides and tailboard.