known to those skilled in the art to which the present invention is directed regarding operation of apparatus 150 the paper web 10 and felts 11 are passed between rollers 40 and 50 and thereafter propelled therebetween by powered rotation of either or both of rollers 40 and 50 fig2 with the compression of web 10 and felts 11 at the nip by the rollers 40 and 50 compressed air is introduced to apertures 41 via chamber 42 the compressed air then passes downwardly through apertures 51 to exhaust into chamber 52 having passed through web 10 and felts 11 liquid moisture in web 10 and felts 11 is thus carried into chamber 52 and is thereafter expelled therefrom via a drainage outlet not shown thus apparatus 150 operates much like apparatus 100 to remove water from paper web 10 and felts 11 again as in the case of the fig1 embodiment this embodiment utilizes felt 11 on opposite sides of web 10 as will be seen in fig4 an apparatus 200 is disclosed somewhat similar to that of fig2 and 3 in that it includes the pair of rollers 40 and 50 having respectively chambers 42 and 52 therein and the web passing intermediate the rollers the main differences from.