| 摘要 |
<p>DEVICE FOR PASSING ELECTRIC CURRENT THROUGH A WALL SUBJECTED TO EXCESS PRESSURE ON ITS INNER SIDE A device for passing an electric current through a wall subjected to excess pressure on its inner side, and comprising: a sleeve received in an aperture in the wall, which sleeve is integrally formed at its inner end with a collar engaging the inner surface of the wall; an electric conduit enclosing a conductor for passing said electric current, which conduit includes a shaft passing through the sleeve, a head on the inner end of said shaft, and an inclined, e.g. conical, surface on said head tapering towards said shaft; a recess at the inner end of said sleeve; an opposing surface in said recess facing said inclined suface on the head of the electric conduit; an outer insulator including a hollow cylindrical portion engaging between the outer end of the sleeve and the aperture in the wall; a seal, such as an O-ring seal, between the hollow cylindrical portion and the sleeve; and axially operating clamping means carried by the outer end of the shaft, which clamping means act on the outer end of the sleeve, and on said outer insulator, to compress the sleeve between said clamping means and said head on the inner end of the shaft.</p> |
