| 摘要 |
<p>An automatic pressure regulator which can be connected in a liquid conduit to provide a substantially constant pressure comprises a hollow body (1) with an inlet (3) and an outlet (6) and an overflow stand (8) coupled to a tube (9). A pivotal member (11) is located inside the body and has a sealing surface (15) and an end coupled to a wire (10) which is connected to the end of the lever arm (17). The other end of the lever supports a hollow vessel (22) which can communicate with the outlet tube (7) through its base by means of a tube (23). As the liquid level in the vessel (22) rises or falls the lever (17) pivots to operate the member (11) and thereby control flow through the body 1. <IMAGE></p> |
