Method and press for pressing liquid from thin layers of liquid containing masses

A press for pressing liquid from a liquid-containing mass comprising a frame, first and second spaced vertical platens, a plurality of vertical racks, first mounting means for mounting said plurality of vertical racks between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags for receiving said liquid-containing mass, second mounting means for mounting said plurality of porous bags in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags, said porous bags being closed on their bottom edges and on their vertical sides and having openings on their top edges, said racks having top edges adjacent said top edges of said porous bags, and means proximate said top edges of said porous bags for mounting said porous bags relative to said top edges of said racks so that there are substantially no open spaces between said openings of said porous bags and said top edges of said racks, said means proximate said top edges of said porous bags comprising flaps securing adjacent porous bags to each other and overlying said top edges of said racks.

A press for pressing liquid from a liquid-containing mass comprising a frame, first and second spaced vertical platens, a plurality of vertical racks, first mounting means for mounting said plurality of vertical racks between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags for receiving said liquid-containing mass, second mounting means for mounting said plurality of porous bags in interspersed relationship with said plurality of vertically racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags said first mounting means comprising a second frame mounted on said first frame for mounting said racks and bags in parallel relationship and for maintaining said racks and bags in said parallel relationship in all positions thereof, and third mounting means for mounting said second frame for movement laterally to a second position outside of the space between said first and second platens including means for inverting said second frame to thereby invert said porous bags.

A press for pressing liquid from a liquid-containing mass comprising a frame, first and second spaced vertical platens, a plurality of vertical racks, first mounting means for mounting said plurality of vertical racks between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags for receiving said liquid-containing mass, second mounting means for mounting said plurality of porous bags in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags, said racks including upper and lower portions, said first mounting means comprising a second frame, first and second scissors linkages on opposite sides of said second frame, upper and lower ends on said first and second scissors linkages, said first and second scissors linkages including first and second elongated links having upper and lower ends, pivot means intermediate said upper and lower ends for pivotally connecting said elongated links to each other, and loose connection means connecting said upper portions of said racks relative to said upper ends of said first and second scissors linkages.

A press for pressing liquid from a liquid-containing mass comprising a first frame, first and second spaced vertical platens, first mounting means for mounting said first and second spaced vertical platens on said first frame, a plurality of vertical racks, a second frame, second mounting means for mounting said second frame on said first frame, third mounting means for mounting said plurality of vertical racks on said second frame between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags having open tops for receiving said liquid-containing mass, fourth mounting means for mounting said plurality of porous bags on said second frame for movement therewith, said plurality of porous bags being mounted on said second frame in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags, and means for moving said second frame and said porous bags mounted thereon for movement therewith to an inverted position outside of the space between said first and second platens to thereby invert said porous bags to discharge the residue of said liquid-containing masses from said open tops of said porous bags.

A press for pressing liquid for a liquid-containing mass comprising a first frame, first and second spaced vertical platens, first mounting means for mounting said first and second spaced vertical platens on said first frame, a plurality of vertical racks, a second frame, second mounting means for mounting said second frame on said first frame, third mounting means for mounting said plurality of vertical racks on said second frame between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags having open tops for receiving said liquid-containing mass, fourth mounting means for mounting said plurality of porous bags on said second frame for movement therewith, said plurality of porous bags being mounted on said second frame in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags, means for moving said second frame and said porous bags mounted thereon to a position outside of the space between said first and second platens, and means for inverting said second frame and said porous bags mounted thereon for movement therewith to thereby invert said porous bags to discharge the residue of said liquid-containing masses from said open tops of said porous bags.

A press for pressing liquid from a liquid-containing mass comprising a frame, first and second spaced vertical platens, a plurality of vertical racks, first mounting means for mounting said plurality of vertical racks between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags for receiving said liquid-containing mass, second mounting means for mounting said plurality of porous bags in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags, said first mounting means comprising a second frame, and third mounting means for mounting said second frame for movement laterally to a second position outside of the space between said first and second platens including means for inverting said second frame to thereby invert said porous bags, said means for inverting said second frame comprising pivot means on said second frame for permitting said second frame to pivot outwardly to said second position while said racks remain substantially parallel to each other and to said first and second platens, whereby said porous bags in said second position will be inverted from the positions which they occupied when said second frame was located between said first and second platens, said racks including upper and lower portions, and said second frame including first and second scissors linkages on opposite sides thereof, said first and second scissors linkages including first and second elongated links having upper and lower ends for pivotally connecting said elongated links to each other, and loose connection means connecting said upper portions of said racks relative to said upper ends of said first and second scissors linkages.

A press for pressing liquid from a liquid-containing mass comprising a frame, first and second spaced vertical platens, a plurality of vertical racks, first mounting means for mounting said plurality of vertical racks between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags for receiving said liquid-containing mass, second mounting means for mounting said plurality of porous bags in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags, said first mounting means comprising a second frame, and third mounting means for mounting said second frame for movement laterally to a second position outside of the space between said first and second platens including means for inverting said second frame to thereby invert said porous bags, said means for inverting said second frame comprising pivot means on said second frame for permitting said second frame to pivot outwardly to said second position while said racks remain substantially parallel to each other and to said first and second platens, whereby said porous bags in said second position will be inverted from the positions which they occupied when said second frame was located between said first and second platens, said first frame including a side frame member, and said pivot means causing said side portions of said second frame to abut said side frame member in the inverted position.

A press for pressing liquid from a liquid-containing mass comprising a first frame, first and second spaced vertical platens, first mounting means for mounting said first and second spaced vertical platens on said first frame, a plurality of vertical racks, a second frame, second mounting means for mounting said second frame on said first frame, third mounting means for mounting said plurality of vertical racks on said second frame between said first and second vertical platens in substantially parallel relationship to each other and to said first and second platens, a plurality of porous bags having open tops for receiving said liquid-containing mass, fourth mounting means for mounting said plurality of porous bags on said second frame for movement therewith, said plurality of porous bags being mounted on said second frame in interspersed relationship with said plurality of vertical racks, means for effecting relative movement of said first and second platens toward each other to cause said racks to effect a pressing relationship with said bags to force liquid out of said liquid-containing mass in said bags and to cause said first and second platens to move away from each other to terminate the pressing relationship between said racks and said porous bags mounted thereon for movement therewith to an inverted position to thereby invert said porous bags to discharge the residue of said liquid-containing masses from said open tops of said porous bags.

A porous bag for mounting in a press for pressing liquid from a liquid-containing mass when said bag is in an upright position and for discharging deliquified residue when said bag is in an inverted position after said liquid has been pressed from said liquid-containing mass comprising first and second substantially planar porous fabric side walls positioned in contiguous relationship and each having a bottom edge and a pair of side edges and a top edge, first means connecting said bottom edges to each other to thereby provide a closed bottom to said bag when said bag is in said upright position, opening means between said top edges defining an open mouth for receiving said liquid-containing mass when said bag is in said upright position with said opening means at the top of said bag, and second means connecting adjacent side edges of said fabric side walls positioned in said contiguous relationship, said second means causing said side edges to converge toward said bottom edges substantially throughout their entire extent when said bag is in said upright position to provide a downwardly converging chamber within said bag, said second means also causing said side edges to diverge substantially throughout their entire extent toward said opening means between said top edges when said bag is inverted from said upright position to thereby provide a downwardly diverging chamber substantially throughout its entire extent within said bag to facilitate discharging of said deliquified residue, flap means forming a continuation of one of said side walls and extending away from said opening means for attachment to a side wall of an adjacent bag when said bag is mounted in said press, and spaced grommet means proximate the junctions of said bottom edges and said side edges.

A porous bag construction for mounting in a press for pressing liquid from a liquid-containing mass when said bag construction is in an upright position and for discharging deliquified residue when said bag construction is in an inverted position after said liquid has been pressed from said liquid-containing mass comprising a plurality of bags, each bag comprising first and second substantially planar porous fabric side walls positioned in contiguous relationship and each having a bottom edge and a pair of side edges and a top edge, first means connecting said bottom edges to each other to thereby provide a closed bottom to said bag when said bag is in said upright position, opening means between said top edges defining an open mouth for receiving said liquid-containing mass when said bag is in said upright position with said opening means at the top of said bag, and second means connecting adjacent side edges of said fabric side walls positioned in said contiguous relationship, said second means causing said side edges to converge toward said bottom edges substantially throughout their entire extent when said bag is in said upright position to provide a downwardly converging chamber within said bag, said second means also causing said side edges to diverge substantially throughout their entire extent toward said opening means between said top edges when said bag is inverted from said upright position to thereby provide a downwardly diverging chamber substantially throughout its entire extent within said bag to facilitate discharging of said deliquified residue, flap means of at least substantially the same width as the opening means of said bags extending between said top edges of adjacent bags, whereby said bag construction comprises a plurality of said bags connected by said flap means when said plurality of bags are mounted in said press, and spaced grommet means proximate the junctions of said bottom edges and said side edges of each of said bags.