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In a bag house, the flat cell plate has integral annular walls drawn outwardly from the plane of the cell plate, the walls each terminating in a lip forming a circular opening lying in a plane parallel and spaced from the plane of the cell plate. Vertical tubular filter bags are secured to the cell

In a bag house, the flat cell plate has integral annular walls drawn outwardly from the plane of the cell plate, the walls each terminating in a lip forming a circular opening lying in a plane parallel and spaced from the plane of the cell plate. Vertical tubular filter bags are secured to the cell plate by a spring in each bag which forces an outwardly facing groove on the open end of the bag into engagement with the lip to which the bag is attached.

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In an enclosed bag house having a horizontal cell plate dividing the interior of said house into upper and lower compartments, said bag house having means forming a gas inlet into one of said compartments and means forming a gas outlet from the other of said compartments, said cell plate being of me

In an enclosed bag house having a horizontal cell plate dividing the interior of said house into upper and lower compartments, said bag house having means forming a gas inlet into one of said compartments and means forming a gas outlet from the other of said compartments, said cell plate being of metal sheet material and having a plurality of circular openings therethrough between said compartments and a plurality of vertically disposed tubular filter bags in one of said compartments, said bags each being open at one end and closed at the other end, said bags being attached to said cell plate with the open end of each bag being in communication with one of said cell plate openings, the improvement wherein: each of said cell plate openings is formed by an annular wall integral with said cell plate and drawn therefrom, said wall extending vertically from the plane of said cell plate and terminating in an inwardly facing lip, said lip lying in a plane parallel to the plane of said cell plate and spaced a substantial distance vertically therefrom, and wherein at least one of said bags includes a hoop-shaped resilient spring at its open end and means forming an outwardly facing groove around the periphery of said open end of said one bag, and wherein said groove has received therewithin the lip of the annular wall forming the cell plate opening in communication with the open end of said at least one bag.