| 摘要 |
1279332 Releasable fastenings SCHLOEMANN AG 13 April 1970 [2 May 1969] 17416/70 Heading E2A In a contracting or expanding clamp for gripping the outside or inside surface respectively of a pipe 7, 17 pressure is applied from a fluid on a resilient sleeve 1, 11 acting on segmental gripping shoes 6 which are located by T-shaped guides 3, 13 secured to the resilient sleeve. The shoes are lifted by spring rings 9, 19 in circumferential grooves. In the form shown in Fig. 8, the guides 23 are of double T shape the segments 26 being spaced by springs 29. |
