Press section in a paper machine

Claim 1

A no-draw press section of a paper machine comprising: a first double felted press nip defined by first and second rolls through which first upper and second lower felt fabrics pass, a paper web leaving the wire section of the paper machine being supported by the first felt fabric and conducted through the first double felted press nip between said two felt fabrics so that the web is dewatered through both of its surfaces in said first double felted press nip; at least two single felted press nips defined against a plain surface roll, said first felt fabric passing through a first one of said single felted press nips to serve as a press fabric therein, said first single felted press nip being situated at a given distance from said first double felted press nip, the first felt fabric and paper web supported thereby having a run between the first double felted press nip and the first single felted press nip whereupon the web separates from said first felt fabric after passing through said first single felted press nip and adheres to the surface of said plain surface roll and is conducted on said surface to a second one of said single felted press nips through which a separate third press felt passes; said press section including only non-suction rolls and wherein said first and second rolls each have a solid shell and a recessed surface; said first upper felt fabric which constitutes a fabric loop and the web supported thereby being guided over a first sector of said first recessed surface roll which is prior to said first double felted press nip and located inside said first felt fabric loop such that the direction of the run of said first felt fabric which wraps said first sector of said first recessed surface roll and the web supported thereby is changed so as to be directed generally upwardly prior to said first double felted press nip, the magnitude of said first sector being in the range of about 30° to 150°; and said second lower felt fabric which passes through said first double felted press nip being guided over a second sector of said first recessed surface roll which is substantially as large as or only slightly smaller than said first sector of said first recessed surface roll to provide external support for the web prior to said first double felted press nip, said second felt fabric being separated from the web substantially immediately after said first double felted press nip.