Pressure sealing device for high pressure steamer

Claim 1

A pressure dealing device for a high pressure steamer for conveying a cloth material into or out of the drum body of the high pressure steamer, comprising a main sealing body arranged to be connected to the drum body, said main sealing body having a first port arranged to open into the drum body and a second port arranged to open to the exterior of the drum body, a first pair of seal rolls located at and inwardly of said first port relative to the drum body, a second pair of seal rolls located at and outwardly of said second port relative to the drum body, in each of said first and second pair of rolls, said rolls being disposed in pressed contact with one another for closing the adjacent first and second port, partition means in combination with said main sealing body forming between two and five serially arranged pressure reducing chambers positioned between said first and second ports, and air release means associated with said pressure reducing chambers, and said pressure reducing chambers comprising a first pressure reducing chamber associated directly with said first port and at least one second pressure reducing chamber located between said first pressure reducing chamber and said second port, said partition means comprises a partition wall located between each pair of adjacent serially arranged pressure reducing chambers and each said partition wall having a cloth passing hole therethrough, each said second pressure chamber having a nozzle therein spaced inwardly from said main sealing body, said nozzle mounted on the one of said partition walls of said second pressure chamber located closer to said second port and extending therefrom toward and in spaced relation with said partition wall of said second pressure chamber located closer to said first