Abstract: A membrane plate for a chamber filter press over which a filter cloth may be stretched on both sides thereof. The membrane plate includes an exchangeable substantially planar membrane member which is loosely enclosed between a bracket plate and a frame and is adapted to be clamped tightly between the bracket plate and the frame only by the closing pressure of the chamber filter press. The bracket plate and the frame, when the filter press is open, are adapted to be moved apart from one another along slide bearing pieces by a distance of 1 to 3 mm until the movement is limited by a stop. By enabling a relative movement when the filter press is open, the membrane is vented during times of stoppage of the open filter press or during ejection of a filter cake or a washing of the filter cloths so as to enable the membrane to readily readjust.

Abstract: In a plate filter press with filter plates (8) suspended on support guides (3, 4), which filter plates are guided along stop rails (23, 24) for the purpose of preventing pendulating oscillations, the oscillation protection is to be constructed so that a required filter plate replacement or filter cloth exchange can be carried out without disassembly of the oscillation protection.For this purpose, the provision is made that the stop rails (23, 24) can be operatively adjusted away from the filter plates (8), and to attain this objective, the stop rails are preferably pivotable about axles (30, 31) extending in parallel to the longitudinal axis of the filter press.

Abstract: A filter press provided with a spray cleansing device of the kind described in U.S. Pat. No. 4,107,042 granted Aug. 15, 1978 to wash filter plates of the press disposed in a stack on horizontal guides in which the spray device comprises a support frame which moves along the stack of plates on the horizontal guides. Two branch conduits of the device are fitted with nozzles and surround a plate being washed to spray wash the plate simultaneously from both sides. The specific improvement in the present invention comprises a novel spray water catch basin which has a width more than twice the spacing between the branch conduits. Movable segments on both sides of the catch basin are provided which may be pivoted about a perpendicular axis to adapt the catch basin to many locations along the filter press.

Abstract: The invention relates to a filter press construction of the type having a plurality of filter plates suspended from two parallel I beam carriers, the filter plates being provided with a novel supporting arm suspension which prevents undesired swinging. The supporting arms are bent to diverge on both front and back sides of the filter plates, two arms on each side of the vertical center of the plate to provide a novel suspension consisting of two leading bent arms and two lagging bent arms for each filter plate in its operating condition suspended for movement on the I beam carrier. The arms of the filter plates are provided with roller or equivalent sliding elements to facilitate shifting movement on the guiding flange surface of the parallel I beam carriers. This unique leading and lagging supporting arm construction on the I beam carrier eliminates serious swinging problems encountered with conventional filter presses using the parallel I beam carrier suspension for the filter plates.

Abstract: The invention relates to a movable apparatus for removal of filter plates from a filter press, these plates resting on two horizontal guide carriers. The apparatus has a carriage, movable on the guide carriers, which has a driving apparatus for a driver means, in order to always pull off the outside filter plate from a pack of filter plates, and a bolt for holding back the remaining filter plates in the pack. The driver means and bolt are arranged in such manner that the driver means and bolt are movable up and down between a lower engaging position aligned with stops on the sides of the filter plates and an upper dis-engaging position away from such stops.