Clamping arrangement for pipes

Claim 1

AN ARRANGEMENT FOR CLAMPING TWO MUTUALLY SLIDABLE AND ROTATABE TUBULAR ELEMENTS ESPECIALLY FOR PHOTOGRAPHIC APPARATUS, COMPRISING AT LEAST TWO TUBULAR MEMBERS ARRANGED FOR TELESCOPIC MOVEMENT RELATIVE TO ONE ANOTHER, A CLAMPING SLEEVE MEMBER ROTATABLY DISPOSED BETWEEN SAID TELESCOPIC TUBULAR MEMBERS, SAID CLAMPING SLEEVE MEMBER BEING ALSO SECURED IN THE AXIAL DIRECTION IN POSITION BETWEEN SAID TELESCOPIC TUBULAR MEMBERS, INTERENGAGEABLE MALE AND FEMALE LOCKING MEANS, ONE OF SAID LOCKING MEANS BEING DISPOSED ON THE FIRST OF SAID TELESCOPIC TUBULAR MEMBERS AND THE OTHER OF SAID LOCKING MEANS BEING DISPOSED ON SAID CLAMPING SLEEVE MEMBER IN SUCH A POSITION AS TO BE ENGAGED OR RELEASED UPON RELATIVE AXIAL MOVEMENT BETWEEN SAID FIRST TELESCOPIC TUBULAR MEMBER AND SAID CLAMPING SLEEV MEMBER, SAID MALE AND FEMALE LOCKING MEANS BEING SO SHAPED THAT WHEN ENGAGED THEY PROVIDE A TORQUE TRANSMITTING CONNECTION BETWEEN SAID CLAMPING SLEEVE MEMBER AND SAID FIRST TELESCOPIC TUBULAR MEMBER, AND FORCE LOCKING CONNECTING MEANS INCLUDING AT LEAST ONE CAM SURFACE DISPOSED ON THE OTHER TELESCOPING TUBULAR MEMBER AND SPRINGY TONGUE MEANS DISPOSED ON SAID CLAMPING SLEEVE MEMBER ADJACENT TO SAID CAM SURFACE, SAID CAM SURFACE AND SAID SPRINGY TONGUE MEANS UPON ROTATION OF SAID CLAMPING SLEEVE MEMBER PROVIDING A FORCE-LOCKING CONNECTION BETWEEN THE TWO TELESCOPIC TUBULAR MEMBERS.