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    • 3. 发明专利
    • A preformed moulding for a cattle grid base
    • GB2420738A
    • 2006-06-07
    • GB0426657
    • 2004-12-04
    • HARGREAVES JOHN
    • HARGREAVES JOHN
    • B29C70/68A01K1/015A01K3/00B29C39/18
    • A preformed moulding 1 for a cattle grid base comprises a former for a pit with support means for a grid. The moulding may be made from glass-fibre reinforced plastic (GRP) and when seated in a suitable pit in a track or road acts as a former for pumped or poured concrete. When set the concrete both fills and supports the GRP moulding and forms a foundation for the support of the grid or bars. The moulding may be shaped with a rebate 7 at its top sides with a recess 8 to receive a shock absorbing pad or strip 9 on which the grid or bars are supported. The moulding may also comprise a sloping floor (12 figure 3) with drain holes (13 figure 1) at the lowest points, one or more ramps 11 to allow small animals to escape from the pit should they fall in and one or more vents to allow air to escape during the back filling with concrete. Furthermore the moulding may be constructed in two or more separate sections with matching edges which may be fastened to each other at the site of construction. Also included is a method of constructing a cattle grid using said preformed moulding.