Sammying presses

Claim 2

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: a first frame located at an inlet end of said press; a plurality of upper and lower intake end guide rolls rotatably mounted in said first frame; at least one pair of first press rolls, an upper roll of said first pair being in juxtaposition to a lower roll of said first pair, and rotatably mounted in said first frame; a second frame located at an outlet end of said press; a plurality of upper and lower outlets and guide rolls rotatably mounted in said second frame; at least one pair of second press rolls, an upper roll of said second pair being in juxtaposition to a lower roll of said second pair, and rotatably mounted in said second frame; at least one third frame disposed between said first and second frames; at least one pair of third press rolls, an upper roll of said third pair being in juxtaposition to a lower roll of said third pair, and rotatably mounted in said third frame; a first endless belt of porous material impervious to water mounted around said upper intake end guide rolls, said upper outlet end guide rolls and said upper rolls of said first, second and third pair of press rolls; and a second endless belt of porous material pervious to water mounted around said lower intake guide rolls, said lower outlet end guide rolls and said lower rolls of said first, second, and third pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt.

Claim 3

A continuous sammying press substantially as set forth in claim 1, further characterized in that: a separate hydraulic motor is adapted to drive each roll of said first, second and third pair of press rolls; and each pair of said press rolls have an independent hydraulic system supplying working fluid to its associated hydraulic motors.

Claim 4

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: at least two pair of rotatably mounted press rolls, each of said pair of press rolls having an upper roll disposed in juxtaposition above a lower roll; a first endless belt of porous material pervious to water mounted around said upper rolls of said pair of press rolls; a second endless belt of porous material pervious to water mounted around said lower rolls of said pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt; an hydraulic motor operatively associated with each of said upper and lower press rolls; means to drive said first and second endless belts in opposite rotational directions, and at the same speed; a separate hydraulic system operatively associated with each of said pair of press rolls to supply working fluid to both its associated said motors; an hydraulic pump operatiVely associated with each of said separate hydraulic systems; and said hydraulic motors of each of said upper and lower press rolls are connected in series with said pump in its associated hydraulic system.

Claim 5

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: at least two pair of rotatably mounted press rolls, each of said pair of press rolls having an upper roll disposed in juxtaposition above a lower roll; a first endless belt of porous material pervious to water mounted around said upper rolls of said pair of press rolls; a second endless belt of porous material pervious to water mounted around said lower rolls of said pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt; an hydraulic motor operatively associated with each of said upper and lower press rolls; means to drive said first and second endless belts in opposite rotational directions, and at the same speed; a separate hydraulic system operatively associated with each of said pair of press rolls to supply working fluid to both its associated said motors; an hydraulic pump operatiVely associated with each of said separate hydraulic systems; and said hydraulic motors of each of said upper and lower press rolls are connected in series with said pump in its associated hydraulic system.

Claim 6

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: at least two pair of rotatably mounted press rolls, each of said pair of press rolls having an upper roll disposed in juxtaposition above a lower roll; said lower rolls adapted to move upwardly to exert a force on said upper rolls; a first endless belt of porous material pervious to water mounted around said upper rolls of said press rolls; a second endless belt of porous material pervious to water mounted around said lower rolls of said pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt; an hydraulic motor operatively associated with each of said upper and lower rolls; means to drive said first and second endless belts in opposite rotational directions, and at the same speed; a separate first hydraulic system operatively associated with each of said pair of press rolls to supply working fluid to both its associated said motors; said hydraulic motors of each of said upper and lower press rolls being connected in series with said pump in its associated first hydraulic system; at least two pressure cylinders each operatively associated with one of said lower rolls to move said lower roll upwardly against one of said upper rolls to exert a force thereon; a separate independent second hydraulic system operatively associated with each of said pressure cylinders; and an hydropneumatic pressure reservoir operatively connected to said pressure cylinders.

Claim 7

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: at least two pair of rotatably mounted press rolls, each of said pair of press rolls having an upper roll disposed in juxtaposition above a lower roll; said lower rolls adapted to move upwardly to exert a force on said upper rolls; a first endless belt of porous material pervious to water mounted around said upper rolls of said press rolls; a second endless belt of porous material pervious to water mounted around said lower rolls of said pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt; an hydraulic motor operatively associated with each of said upper and lower rolls; means to drive said first and second endless belts in opposite rotational directions, and at the same speed; a separate first hydraulic system operatively associated with each of said pair of press rolls to supply working fluid to both its associated said motors; said hydraulic motors of each of said upper and lower press rolls being connected in series with said pump in its associated first hydraulic system; at least two pressure cylinders each operatively associated with one of said lower rolls to move said lower roll upwardly against one of said upper rolls to exert a force thereon; a separate independent second hydraulic system operatively associated with each of said pressure cylinders; and an hydropneumatic pressure reservoir operatively connected to said pressure cylinders.

Claim 8

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: at least two pair of rotatably mounted press rolls, each of said pair of press rolls having an upper roll disposed in juxtaposition above a lower roll; a first endless belt of porous material pervious to water mounted around said upper rolls of said pair of press rolls; a second endless belt of porous material pervious to water mounted around said lower rolls of said pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt; said second endless belt extending beyond said first endless belt at an inlet end of said press forming a free, substantially horizontal loading surface to receive material to be processed; and a rotatably mounted flattening roll having helical ribs, adapted for generally vertical adjustment to allow it to be lowered to engage material to be processed, or raised to a position of rest permitting the introduction of said material directly between said first and second belts, disposed above said loading surface, and driven in a direction of rotation opposing to the direction of travel of material to be processed between said first and second belts.

Claim 9

A continuous sammying press for squeezing moisture from hides, leather, or the like, comprising: at least two pair of rotatably mounted press rolls, each of said pair of press rolls having an upper roll disposed in juxtaposition above a lower roll; a first endless belt of porous material pervious to water mounted around said upper rolls of said pair of press rolls; a second endless belt of porous material pervious to water mounted around said lower rolls of said pair of press rolls, having a surface in juxtaposition to a surface of said first endless belt; said second endless belt extending beyond said first endless belt at an inlet end of said press forming a free, substantially horizontal loading surface to receive material to be processed; and a rotatably mounted flattening roll having helical ribs, adapted for generally vertical adjustment to allow it to be lowered to engage material to be processed, or raised to a position of rest permitting the introduction of said material directly between said first and second belts, disposed above said loading surface, and driven in a direction of rotation opposing to the direction of travel of material to be processed between said first and second belts.