Abstract: A web-forming method is applied in a paper machine. The web-forming section which includes a lower wire loop having an initial single-wire run and dewatering zone in which the web is dewatered through and an upper wire loop having a joint run with a subsequent run of the lower wire to form a two-wire dewatering zone within which dewatering takes place substantially through the upper wire. A first open faced forming roll is situated within the upper wire loop so that the two-wire dewatering progress begins upwardly in the region of the first forming roll. A forming shoe within the lower wire loop has a curved deck whose center of curvature is situated on the side of the lower wire loop and further guides the joint run of the upper and lower wires in the two-wire dewatering zone. A second forming roll situated within the lower wire loop after the forming shoe guides the joint run of the upper and lower wires over a downwardly curved sector thereof.

Abstract: A web-forming section and method in a paper machine. The web-forming section includes a lower wire loop having an initial lower wire run constituting an initial single-wire dewatering zone of the web-forming section in which the web is dewatered through the lower wire, and an upper wire loop having a joint run with a subsequent run of the lower wire to form a two-wire dewatering zone of the web-forming section within which dewatering takes place substantially through the upper wire. A first open faced forming roll is situated within the upper wire loop so that the two-wire dewatering zone begins and curves upwardly in the region of the first forming roll. A forming shoe within the lower wire loop has a curved deck whose center of curvature is situated on the side of the lower wire loop and further guides the joint run of the upper and lower wires in the two-wire dewatering zone.

Abstract: In a paper making machine, transfer apparatus for guiding a paper web from the press section to the drying section includes a smoothing press including upper and lower smoothing press rolls wherein the web is passed from the press section to the smoothing nip either directly or guided by a guide roll. The lower smoothing press roll of the smoothing press is substantially situated at a position which is normally occupied by a so-called baby or lead-in cylinder of a conventional drying section and the drying wire of the drying section is guided over a sector of the lower smoothing roll which is of a size sufficiently large that the web is transferred onto the drying wire which then carries the web as a closed draw onto the first drying cylinder of the drying section and, preferably, to the subsequent drying cylinders as a so-called single-fabric draw.

Abstract: An improvement in a web-forming section of a paper machine intended as a modernization of a fourdrinier-wire part by which an improved formation of the web and an adjustable dewatering thereof by which better retention and desired distribution of fillers and fines is achieved.

Abstract: A paper machine drying section has a pair of staggered rows of rotary dryer cylinders which include a first group of cylinders of both rows which form an initial part of the drying section where a web is initially received from a press section. A first endless fabric which forms a closed loop is guided around the above group of cylinders in a manner situating the cylinders of one of the rows within the loop to form inside cylinders therefrom and the cylinders of the other of the rows outside of the loop to form outside cylinders therefrom, this first endless fabric transporting a web which is to be dried around the cylinders of the above group while situating the web between the first endless fabric and the outside cylinders and the first endless fabric itself between the inside cylinders and the web.

Abstract: A machine for manufacturing paper, such as tissue paper, includes a twin-wire former made up of a rotary forming roll and a pair of endless fabrics, each of which may be a wire or felt, lapped around the rotary forming roll to provide twin-wire web formation therewith. At the location where these endless fabrics travel beyond the forming roll they diverge from each other to define between themselves a diverging space where one of the endless fabrics has an upwardly directed surface on which the web is carried beyond the forming roll. This latter endless fabric carries the web to a press section where this latter endless fabric travels with the web through a first press nip of the press section defined between an inner press roll situated within the loop of the latter endless fabric and an outer press roll situated outside of the latter loop.

Abstract: A multicylinder dryer, particularly for the drying of a web, includes cylinders located alternately in two rows one above the other, guiding rolls situated between adjacent cylinders in both rows and drying fabrics wrapping the web on said cylinders, the cylinder which is the first in the direction of travel being a lead-on cylinder, the other cylinders being heated drying cylinders of equal diameters.

Abstract: A paper machine wherein a pick-up roll or felt are eliminated. A pair of endless fabrics and forming rolls cooperating therewith provide with the pair of endless fabrics an ascending twin-wire former and in advance of the twin-wire former a single-wire former. One of these endless fabrics has an upper run extending laterally from the twin-wire former and carries the web formed at the twin-wire former beyond the latter on an upper surface of this upper run. A pair of press rolls include lower and upper press rolls which define a first press nip through which the above upper run travels together with an endless felt which is lapped around the upper press roll so that this endless felt and the above upper run are sandwiched between the press rolls with the web travelling beyond the first press nip together with the endless felt around part of the upper press roll.

Abstract: A structure for bringing about transfer of a paper web from the press section to the drying section of a paper machine during travel of an initial portion of a web from the press section to the drying section as well as subsequently when the travel of the web between these sections has become stabilized. A pair of rolls are situated between the last roll of the press section and the first roll of the drying section to support and guide the web during travel thereof between the press section and drying section. In addition, a weighting roll is provided to cooperate with that one of the above pair of rolls which is nearer to the drying section to define with the latter roll a nip through which an initial portion of the web travels until the operating conditions have become stabilized.