Abstract: A clamp has two injection moulded tangs 1, 2 hinges together by a pin 3 and held closed by a wing nut 4 and a screw 5 having a cross-head 6. The tangs each have a tapered groove 7 running around inside them. In use, this groove engages flanges F on tubes T with a seal S therebetween to hold the tubes in sealing relationship with each other. The one tang 2 has a clevis 10 defined by two lugs 11. Each has an overhung recess 12 into which the cross-head 6 of the screw clips. A crossbar 14 connects the lugs remote from their tang, whereby the screw is limited in its angular displacement about the recesses 12, as shown in FIG. 3. The crossbar also stabilises the lugs against relative displacement under load when the nut is tightened. The other tang 1 has a part conical formation 21 on lugs 22 defining a clevis 23 similar to clevis 10. The nut has a complementary conical recess 24. Engagement of the formation 21 in the recess 24 restrains the lugs from separating under load as the nut is tightened.

Abstract: A clamp has two injection moulded tangs 1, 2 hinges together by a pin 3 and held closed by a wing nut 4 and a screw 5 having a cross-head 6. The tangs each have a tapered groove 7 running around inside them. In use, this groove engages flanges F on tubes T with a seal S therebetween to hold the tubes in sealing relationship with each other. The one tang 2 has a clevis 10 defined by two lugs 11. Each has an overhung recess 12 into which the cross-head 6 of the screw clips. A crossbar 14 connects the lugs remote from their tang, whereby the screw is limited in its angular displacement about the recesses 12, as shown in FIG. 3. The crossbar also stabilizes the lugs against relative displacement under load when the nut is tightened. The other tang 1 has a part conical formation 21 on lugs 22 defining a clevis 23 similar to clevis 10. The nut has a complementary conical recess 24. Engagement of the formation 21 in the recess 24 restrains the lugs from separating under load as the nut is tightened.