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    • 6. 发明专利
    • Detachable two-part electric coupling devices
    • GB887515A
    • 1962-01-17
    • GB3972956
    • 1956-12-31
    • PREC ELECTRONIC TERMINATIONS LRONALD THOMAS MANN
    • H01R9/05
    • 887,515. Two-part couplings. PRECISION ELECTRONIC TERMINATIONS Ltd., and MANN, R. J. March 31, 1958 [Dec. 31, 1956], No. 39729/56. Class 38 (1). In a plug-and-socket coupling (Fig. 6) for concentric cables, the braided outer cable conductors 34 are connected through the outer casings 6, 22 of the plug-and-socket units, which are held together by a coupling-nut 28, and the inner conductors 32 are joined by a pin-andsocket connection 3, 20. In both plug-andsocket units the braided wire outer conductor 34 is turned back to lie over the outside of a sleeve member 14 and is clamped thereon by a splitring 2. The insulated core protruding out of the end of the sleeve, together with a plug pin 20 or socket contact 3 soldered, or crimped, or secured by a washer 42 (Fig. 4b) to the inner conductor, is enclosed either in moulded insulating sleeves 38, 39 (Figs. 4a and 4b) or in a body 4 of polythene or other thermo-plastic insulating material which is moulded thereon and unites with the polythene core insulation (Figs. 3a and 3b). A resilient sealing-ring 37 may be provided in a groove in the body 4. The socket contact 3 (Fig. 2a) has a number of axial slits and the resilient fingers thus formed are kept under spring tension by a resilient split sleeve 13. Low resistance contact between outer casings 6 and 22 (Figs. 5a and 5b) is secured by providing a rolled spring 5 in the casing 6 which grips the end of casing 22 when the coupling is brought into engagement by nut 28. Sealing-rings 19 and 19a are provided to prevent air leakage. Ring 19a also provides a friction lock as does friction washer 30. A nut may be provided to mount casing 6 on a suitable panel. The apparatus is applicable to a multi-cored cable.