Gkn Sankey Limited

Terence Humphrey Shead

Herbert John Sharp

Frederick Leslie Hart

A method of manufacturing a disc wheel which is of generally Y-shape in cross sections radial of the rotary axis of the wheel, the stem of the Y providing the central disc of the wheel and having holes for the normal wheel bolts or studs, and the bifurcations of the Y providing the wheel rim. The wheel has an annular metal reinforcement having parts located in the stem and in one of the bifurcations of the Y, the reinforcement including holes corresponding to the holes in the finished wheel for the bolts or studs. A covering of plastics material is moulded over the reinforcement, the covering having an integral extension which provides the other bifurcation of the Y. The plastics covering is moulded onto the reinforcement in a mould cavity defined between first and second mould portions which are movable towards and away from one another in directions parallel to the rotary axis of the wheel between open and closed positions. The reinforcement is located in the mould cavity, at least at the start of the moulding by first and second series of abutments, each abutment of the first series engaging in one of said holes in the reinforcement and each abutment of the second series engaging the reinforcement at a position radially outwardly of the holes with respect to the rotary axis.

Growing community of inventors

Chorley Wood, United Kingdom

Terence Humphrey Shead