| http://www.w3.org/ns/prov#value | - While the apparatus of FIG. 1 could be utilized by inserting an extra amount of liquid refrigerant into the enclosure 30 above the capillary tube 22, the preferred embodiment is best seen in FIG. 2 which is generally similar to the apparatus shown in FIG. 1 except in an upright or vertical position and in which like parts are designated by like numbers with the suffix a.
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