| 摘要 |
A mould for producing mouldings from concrete, for example so-called hollow building blocks, comprises a rectangular, non-wear- resistant frame (1, 2), wear-resistant intermediate walls (3) running perpendicularly to the plane of the frame and having projections (16) in the form of tongues of the same thickness as the intermediate walls (3), as well as wear-resistant top panels covering the inner surfaces of the frame. This mould is simplified by those frame sections (2) on which the intermediate walls (3) are fastened being of smaller height than the latter, by the intermediate walls (3) protruding downwards beyond the frame sections (2), by the projections (16) extending over the frame sections (2) and being screwed to fastening elements (17) welded on to the latter. When producing the mould, the procedure preferably adopted is that first of all the fastening elements (17), for example angle pieces, are screwed to the intermediate walls (3), then the mould is put together and finally the fastening elements (17) are welded to the frame section (2) concerned. <IMAGE>
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