Unit for producing a tube with a tube wall composed of flexible

Details Unit for producing a tube with a tube wall composed of flexible Unit for producing a tube with a tube wall composed of flexible

1994-09-22

1997-05-27

Scherbel, David

Metal working

Means to assemble or disassemble

Means to interrelatedly feed plural work parts from plural...

29820, 138129, B23P 2100

Patent

active

056320825

ABSTRACT:
A tube with a tube wall composed of flexible material webs for covering pipe lines and for producing pipes and a unit for producing same. The tube wall is composed as a tube of two outer webs with longitudinal edges fused with one another and consisting of at least one tubular tension web made of glass fiber webs and mats lying in the interior of the outer covering. The longitudinal edges of the tension web are superimposed loosely to an overlapping, and the tension web is resin impregnated. The unit includes guide rollers, a core freely mounted on the guide rollers and made of core segments coupled with one another and having a width and an axis, clamping shafts projecting over the width of the core, reels mounted on the clamping shafts including material webs in a plurality of stations over and under the core, wherein the reels are offset with respect to the axis of the core and wherein the core extends through the plurality of stations and wherein the webs are guided around the guide rollers onto the core, and a cylinder downstream of the core being coupled to a front end of the core.

REFERENCES:
patent: 2555673 (1951-06-01), Beatly
patent: 2865424 (1958-12-01), McElroy
patent: 2993470 (1961-07-01), Stickel
patent: 3332138 (1967-07-01), Garner
patent: 4117582 (1978-10-01), Borelly
patent: 4633806 (1987-01-01), Schuierer
patent: 4689003 (1987-08-01), Schreiner et al.
patent: 5019417 (1991-05-01), Northcult
patent: 5104592 (1992-04-01), Hunter
patent: 5175930 (1993-01-01), Okuyama et al.

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