the socket itself, which is directly attached to the fabric. In the Kraetzer fastener the part which engages the button-head or stud serves no other purpose whatever, but rests loosely in the chamber of its holder. This holder or shell is clamped permanently and firmly to the fabric, and is never expanded or contracted as in the Mead socket. In engaging and disengaging the fastener, the wire ring alone expands and contracts.
From this statement of the construction of the two devices, which can be made more apparent by a comparison of the drawings, it is very evident that they are constructed upon different principles and operated in a wholly different manner.
But it is claimed that an elastic mouth, combined with and firmly united to a dome, the mouth1. Field of the Invention
The present invention relates to a cooled ring carrier assembly. In particular, this invention relates to a cooled ring carrier assembly that allows for a safe and tight welded joint between the ring carrier and a metal sheet cooling duct when the duct is secured on the ring carrier.
2. The Prior Art
A ring carrier is known from DE 26 24 412, where a planar circular metal sheet is placed against the lower flank of a ring carrier, bent around the ring carrier so as to assume a U-shaped cross section, placed in pre-turned recesses of the ring carrier, clamped tight, and subsequently welded. As the metal sheet is bent around the ring carrier in the a U-shaped form, it is possible to obtain a