β Scribed by G.G. Zhun; V.F. Getmanets; R.S. Mikhalchenko; V.V. Sutula; A.G. Podolski
No coin nor oath required. For personal study only.
e have experimentally investigated tiie effect of the methods of mounting oΒ£ tile superinsulation, its structure, degassing time and temperature, the area of its contact with the neck, contamination witii adsorbent dust and cryocondensate and operating impact overloads on the lifetime of the cryovesseis. The manufacturing met]~ods have been optimized, and vessels with a lifetime of about I year made.
YChT-IO papers, etco) provided 30-40 ~ improvemant of the thermal charactez'istics oi" vessels (Fig,~s. i azld 4) and considerable i'educ-
π SIMILAR VOLUMES
## Abstract A small still, made from heatβresisting glass, for the fractionation of about 20 ml. of liquid, is described. It comprises a fractionating column 6 in. long and I in. bore packed with in. gauze rings and sealed to a boiler which is fined wih an external resistance heater. The column, w