| 摘要 |
<p>1073487 Pipe joints ARTHUR D LITTLE Inc 1 Sept 1964 [6 Sept 1963] 35819/64 Headings F4H and HG13 A tube (80), Fig. 9 (not shown), surrounding inner and outer coaxial high and low-pressure gas pipes (54, 56) and forming an evacuated annular space (86) has an extension (97) which is screwthreaded to a sleeve (119) containing a longitudinally adjustable plug (120) restrained from arcuate movement by pins (122) and welded to a sheath (126) surrounding a tube (133) secured to extension (97) of tube (80) and the free end of the longitudinally adjustable sheath (126) is closed by the stem (148), Fig. 10 (not shown), of a Joule-Thompson gas expansion valve.</p> |
