| 摘要 |
<p>The burner tube is connected via a pressure regulator to the inside of a gas bottle. The bottle (3) is a closed cylinder, having a union piece (12) in the top with a thread (13) onto which the regulator (2) screws. The portion of the union piece extending inside the bottle (15) accommodates a valve (16), above which is a bore (17) open to the outside and containing a seal (18). The internal radius of the latter corresponds to the external radius of a probe (23) on the regulator coaxial to the screwthread, so that when the regulator is screwed home the probe, which contains an axial gas passage (24) leading to the interior of the regulator, opens the valve.</p> |
