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1. (WO2001003897) IMPROVEMENTS IN OR RELATING TO MOULDING CONCRETE ARTICLES, IN PARTICULAR SEGMENTS OF LINING FOR TUNNEL OR PIPELINE

Pub. No.:    WO/2001/003897    International Application No.:    PCT/GB2000/002476
Publication Date: Fri Jan 19 00:59:59 CET 2001 International Filing Date: Thu Jun 29 01:59:59 CEST 2000
IPC: B28B 7/00
B28B 7/02
B28B 23/00
Applicants: TARMAC LIMITED
GIMBERT, Alan, William
ALLUM, David, Roy
CRAMPTON, Brian
Inventors: GIMBERT, Alan, William
ALLUM, David, Roy
CRAMPTON, Brian
Title: IMPROVEMENTS IN OR RELATING TO MOULDING CONCRETE ARTICLES, IN PARTICULAR SEGMENTS OF LINING FOR TUNNEL OR PIPELINE
Abstract:
A moulding apparatus (10) for moulding articles (50) in a settable material, the moulding apparatus (10) including primary part (11) having a base (14) and one or more mould edges. The apparatus (10) is characterised in that it includes at least one insert (20, 21) which is arranged to extend along a mould edge to provide with the primary part (11) a moulding recess (12) into which moulding material is introduced, the insert (20, 21) having a surface (28) which faces inwardly of the moulding recess (19) which is configured so that an edge of the article (50) moulded in the moulding apparatus (10) is provided with a desired formation (25, 26), the insert (20, 21) being removable from the primary part (11) with the moulded article (50).