US 4,047,403 AGranted

Apparatus for the continuous wet treatment of textiles in rope form

AssigneeHoechst Aktiengesellschaft

InventorHans-Ulrich von der Eltz

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Abstract

Sealing device for the continuous inlet and outlet of textile material in the form of endless ropes into and from a pressure-tight container under high temperature conditions, consisting of a number of locks of graduated pressure, which are positioned one behind the other in the transport direction of the rope, and characterized in that each pressure lock is a sealing element made of elastic material in the form of the common shell of two frusta of straight circular cones of different height, which abut on each other axially with their top faces, and which face, in the direction toward the open base of the lower frustum the room under higher pressure, and whose internal surface is lined with a smooth layer and the inner diameter of the sealing element approximately corresponds to the diameter of the cylindrically shaped textile rope, so as to be tightly pressed from all sides onto the textile material under the action of the higher internal pressure exerted in the pressure container on the outer shell of the frusta.

Claims5

Dependent claims

A sealing device for the inlet and outlet of a continuous textile material in a dry or wet state, and in the form of an endless rope, into and from a pressure tight container that is under high pressure conditions, comprising at least one pressure lock including a sealing element formed of an elastic material, said sealing element having a shell configuration comprising two frustro-conical sections of different height having complementary small base portions located adjacent each other to define a narrow neck in the sealing element and larger, different diameter base portions remote from said neck on opposite ends of the sealing element with one of said larger diameter base portions freely protruding into the pressure container, said sealing element having an internal surface lined with a smooth layer, and the inner diameter of said neck of the sealing element being selected to be substantially equal to the diameter of the rope whereby the shell of the sealing element is tightly pressed from all sides by the pressure in said container to engage the inner surface of the sealing element at said neck with the rope to form a pressure seal therebetween.

Dependencies are inferred from the claim text.