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1. 发明授权

US3788793A Apparatus for manufacturing concrete pipes, particularly shaft rings 失效
标题翻译：用于制造混凝土管，特别是轴环的装置
公开(公告)号：US3788793A
公开(公告)日：1974-01-29
申请号：US3788793D
申请日：1971-08-11
申请人： KNAUER GMBH & CO KG
发明人： PAPPERS R , HOHBERG G , JOHN K
IPC分类号： B28B21/06 , B28B21/12
CPC分类号： B28B21/06
摘要： The method and apparatus for manufacturing concrete pipes, especially for lining shaft rings employs a form mantle and a form core with an annular space therebetween, a plunger, coupling means for temporarily connecting form mantle and core, and independent lifting means for the plunger and for the form mantle, the form mantle and core being coupled together and seated at a forming station, are then uncoupled prior to pouring concrete, then the concrete is poured and compacted and the mantle and core are coupled together again and are withdrawn from the formed work piece.
摘要翻译：用于制造混凝土管道的方法和装置，特别是用于衬套轴环的方法和装置采用一种形式套和形成在其间具有环形空间的模芯，柱塞，用于临时连接成形套和芯的联接装置，以及用于柱塞的独立提升装置然后在浇注混凝土之前将形成地幔，形成地幔和岩芯联接在一起并坐在成形站处，然后将混凝土浇注和压实，并将地幔和岩芯再次联接在一起，并从形成的工件中取出片。

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