| 摘要 |
<p>1,214,294. Storing liquids in flexible tanks; reservoirs. NATIONAL RESEARCH DEVELOPMENT CORP. 17 Nov., 1967 [18 Nov., 1966], No. 51859/66. Addition to 1,187,777. Headings E1H and EIT. In addition to the liquid 23 lying beneath the bottom wall 13 of the flexible tank 10 in the pit or recess 15 of the installation for storing liquids described in Specification 1,187,777, a second liquid 23A lies within the recess and outside the tank. The density of this second liquid 23A is less than that of the first liquid 23 and is preferably the same as that of the liquid to be stored within the tank.</p> |
