Paper making screen plate

Details Paper making screen plate Paper making screen plate

D - Textiles, Paper

21

D

D21D 5/16 (2006.01)

Patent

CA 2153825

A paper making screen plate 1 includes first and second support members 31, 32, a plurality of longitudinal members 33 each having an end fixed to the first support member 31 and the other end fixed to the second support member 32, respectively and annularly disposed parallel with each other with gaps t defined therebetween, an intermediate support member 35 interposed between the first support member 31 and the second support member 32, having openings 36 for causing the longitudinal members 33 to pass therethrough and support- ing the longitudinal members 33 by being abutted there- against, a first interval keeping member 381 having an end abutted against the first support member 31 and the other end abutted against the intermediate support member 35, respec- tively, and a second interval keeping member 391 having an end abutted against the intermediate support member 35 and the other end abutted against the second support member 32, respectively, and a first interval keeping member 381 and a second interval keeping member 391 hold the intermediate support member 35 therebetween to thereby regulate the move- ment thereof. With this arrangement, a paper making screen plate having an excellent performance and capable of easily replacing the longitudinal members can be provided.

Cette invention concerne un tamis d'affinage de pâte à papier 1 formé d'un premier et d'un second éléments support annulaires 31, 32, d'une série de barres 33 parallèles séparées d'une distance t et fixées par un bout à l'élément support 31 et par l'autre bout à l'élément support 32, d'un élément support annulaire intermédiaire 35 placé entre lesdits éléments 31, 32 et percé de trous 36 pour le passage en ajustement des barres 33, d'une première entretoise 381 aboutant d'une part contre le premier élément support 31 et d'autre part contre l'élément support intermédiaire 35 et d'une seconde entretoise 391 entre l'élément support intermédiaire 35 et l'élément support 32, les deux entretoise ayant pour objet de maintenir constant l'espacement de l'élément intermédiaire par rapport aux premier et second éléments support 31, 32. Ce montage donne un tamis aux performances excellentes dont on peut remplacer les barres aisément.

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