Demountable annular stop end for barrel mould of spun concrete pipe - extends leg of H section locating flexible tube which inflates to grip mould barrel

The retractable annular stop end is used in centrifugal concrete pipe making, or for lining a steel pipe (1) bore. It forms the radial end face to the concrete (14), while the pipe or mould rotates about its horizontal axis of revolution. It comprises a stiffened 'H' section support ring (...

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Bibliographic Details
Main Author JEAN-CLAUDE BENTI ET DANIEL COMPARIN
Format Patent
LanguageEnglish
French
Published 20.02.1981
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Summary:The retractable annular stop end is used in centrifugal concrete pipe making, or for lining a steel pipe (1) bore. It forms the radial end face to the concrete (14), while the pipe or mould rotates about its horizontal axis of revolution. It comprises a stiffened 'H' section support ring (31,32). The inner channel contains an annular inflatable tube (29) which expands to grip the barrel, and welded radial ribs (37) locates the annular stop end plate (30) with an elastomer lining (38). The tube contracts to permit the axial insertion or retraction of the pipe (1) end, and a fixed ring (39) with radial bolts is used to store the assembly between uses. POUR LIMITER AXIALEMENT LA COUCHE CENTRIFUGEE, CETTE INSTALLATION UTILISE D'UNE PART UN ANNEAU COUPE-CIMENT 13 QUI COMPORTE UN COLLIER RIGIDE 28 POUVANT ETRE ENFILE AVEC JEU RADIAL SUR L'EXTREMITE CYLINDRIQUE 1 DU MOULE 1, A L'EXCEPTION D'UNE COLLERETTE 30 EN SAILLIE RADIALE INTERNE, AINSI QU'UNE CHAMBRE ANNULAIRE GONFLABLE 29 SOLIDAIRE DU COLLIER ET CAPABLE DE S'APPLIQUER PAR SON GONFLEMENT SUR LA SURFACE EXTERIEURE DE CETTE EXTREMITE, ET D'AUTRE PART UN SUPPORT ESCAMOTABLE 16 COMPORTANT DES MOYENS 43 D'APPUI DU COLLIER 28 ET DES MOYENS 41 DE BLOCAGE DE CE COLLIER.LA POSE DE L'ANNEAU COUPE-CIMENT 13 PEUT AINSI ETRE ENTIEREMENT AUTOMATISEE.APPLICATION AU REVETEMENT INTERIEUR PAR UNE COUCHE DE CIMENT DES TUYAUX EN FONTE DE GRANDS DIAMETRES.
Bibliography:Application Number: FR19790020071