upper frame member 17 the force exerted by the roll 15 on the roll 16 and thus on the felt 7 and on the web 8 is obtained by the force produced by the hydraulic or pneumatic cylinder 13 so that water is expressed from the web into the felt as the two travel together through the nip between rolls 15 and 16 as the rolls rotate either by being provided with drive means not shown or due to contact with the web and felt vibrations tend to be induced which are absorbed and reduced or eliminated by the vibration eliminating mechanism indicated at 20 and by absorbing the vibration of the upper rolls the device will also tend to absorb the vibrations of the lower roll the particular embodiment of the device includes resilient vibration absorbing members which absorb the vibration of the rolls in a direction normal to the path of travel of the web through the nip the vibration absorbing members are part of a support carrying the bearings for the upper roll on the frame member 17 and the support is arranged so that displacement in the direction parallel to the path of travel of the web is prevented by nonyieldable portion of the support the vibration absorbing device includes a pair of layers of deformable elastic material 21 and 22 fig3 which are disposed between each of the end roll bearings 23 and the press frame 17 one of the layers is disposed in a position such that it deforms by compression when the movement.