B - Operations – Transporting – 44 – B
Patent
B - Operations, Transporting
44
B
101/2
B44B 7/00 (2006.01) B44B 5/02 (2006.01) E04B 1/76 (2006.01) E04D 13/16 (2006.01) E04B 1/74 (2006.01)
Patent
CA 1302155
- 1 - ABSTRACT Process and device for applying marking lines to a web of mineral fibre containing a binding agent Markings are to be applied to the surface (41) of a web of mineral fibre (38), running at right angles to its longitudinal direction or the direction of travel. For this purpose, a cylinder (1) is envisaged with heating areas around the circumference corresponding in shape and position to the markings to be applied; these heating areas take the form of heating elements (26), which rotate at such a speed that the heating elements (26) or marking ribs (30) provided on the heating ele- ments roll over the surface (41) of the web of mineral fibre (38) without slipping, as a result of the contact. The heating elements (26) or, where appropriate, the marking strips (30) are made of metal, and are heated electrically by tubular heating elements (31) located on the inside, to such a temperature that contact with the surface (41) of the web of mineral fibre (38) causes a shallow zone of disintegration (43) corresponding to the shape of the marking strips (30), in which the binding agent of the web of mineral fibre (38) disintegrates and forms an optically visible marking line through scorch- ing. The cylinder (1) can be driven either by a d.c. motor synchronously with the line speed of the web of mineral fibre (38), or by being transported by the sur- face (41) of the web of mineral fibre (38). (Fig. 2)
535041
Kaufmann Friedrich
Schlobherr Horst-Werner
Stoyke Reinhard
Zinn Egon
Goudreau Gage Dubuc
Isover Saint-Gobain
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