Abstract

Disclosed is a fixture for the reed of a seam weaving machine used for joining two opposite ends of a synthetic fabric by means of a woven seam. The reed is provided with pivotally mounted combs (22) for sliding seam weft threads to the selvage. The fixture comprises an inclined rail (24) and a pressure rail (30) which are disposed at a distance from the bearing mechanism (20) and apply opposite torques to the combs (22), as well as devices (26, 32) for positioning the inclined rail (24) and the pressure rail (30) at angles relative to the bearing mechanism (20) in order to stagger the combs (22) in the position thereof by means of the inclined rail (24) and the pressure rail (30) so as to operate the machine in a first mode of operation. A roll is also provided which can be displaced along a track across the width of the reed in order to successively swivel the combs (22) towards the selvage so as to operate the machine in a second mode of operation. The inclined rail (24) or the pressure rail (30) can be removed from the combs (22) to operate the machine in the second mode of operation. A U-shaped rail (40) can be placed on the front side of the combs (22) in the second mode of operation, the bottom leg (42) of said U-shaped rail (40) impinging the combs (22) below the shaft (20) and the top leg (44) thereof impinging the combs (22) above the shaft (20).

IPC Classes  ?

• D21F 1/00 - Wet end of machines for making continuous webs of paper
• D03D 41/00 - Looms not otherwise provided for, e.g. for weaving chenille yarnDetails peculiar to these looms
• D03D 49/62 - Reeds mounted on slay

Abstract

A sieve for the wet-end section of a paper machine is described, in which the sieve has been compressed by at least one of increased temperature, pressure and/or moisture. In an embodiment, one or more of the thread inflection shape, the width of the thread floats and knuckles, the height of the thread floats and knuckles, the degree of ellipticity of the threads, the total contact area of the sieve and the void size lying between the threads is varied cross each point of the sieve's width. Such a treatment leads to a sieve which has at least one side wherein the thread floats and knuckles are reshaped and the sieve presents at least one substantially flatter surface for the production of paper. Advantageously, this process does not cause any physical damage to the surface of the sieve, as prior techniques of abrasively polishing the surface do.

IPC Classes  ?

• D06C 9/00 - Singeing
• D06C 15/00 - Calendering, pressing, ironing, glossing or glazing textile fabrics
• D06C 27/00 - Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
• D21F 1/10 - Wire-cloths