| 摘要 |
<p>Means for dispensing simultaneously two liquids held in respective flexible containers (2,24), one within the other, comprise concentric tubular passages (16,38) for flows of the liquids from their containers when pressure is applied to the outer container. The inner passage has a narrow elongate form and terminates within the outer passage a final exit section of which provides a common conduit for both flows. A reduced liquid pressure is produced at the inner passage termination by having a tapered upstream end (52) of said conduit overlapping said termination and the conduit is configured to inhibit mixing of the flows along its length. The two liquids are thus dispensed in a single stream in which an, eg. coloured, flow from the inner passage is visible in the core of the stream. By adjusting the position of said conduit taper (52) relative to the inner passage termination it is possible to vary the proportions of the two components in the flow. <IMAGE></p> |
