| 摘要 |
<p>335,457. British Bemberg, Ltd. Dec. 15, 1928, [Convention date]. Digesters. - Cotton fibres are cleared out of a digester 1 after the treating liquid has been run off by agitating them with fresh liquid by the introduction of compressed air through-pipe 3 until the material is evenly distributed and then forcing them out of the vessel through a downwardly extending pipe 4 under the action of the compressed air which collects in the vessel. At the commencement of the agitation, cock 5 is open to allow compressed air to escape. When the material is to be forced out, cock 5 is closed and cock 6 is opened. The cock 7 serves for draining and, if a sieve be placed in front of it, can be used for withdrawing the treating liquid by suction.</p> |
