VATTENTET ENHET FOR ANVENDNING UNDER MYCKET HOGA TRYCK

摘要

A water-tight assembly of a lamp-glass and a tubular body for use under very high pressures, such as the kind used in underwater exploration devices, in which the lamp-glass is made of translucent plastic material and is characterized by a connecting end that is formed with an outer tapered surface and an inner planar face. The tubular body is metallic and has a connecting end formed with a tapered surface which is of a shape complementary to that of the lamp-glass with the two tapered surfaces in contact with each other. A toroidal seal is located in an annular groove formed in either one or both of the tapered surfaces. An intermediate semi-rigid member is shaped to have an annular shoulder and is screwed axially into the lamp-glass and into the tubular body. A resilient shock-absorbing washer is positioned between the inner face of the lamp-glass and the annular shoulder of the intermediate member.