Telescopic construction guiding means

Claim 1

A TELESCOPIC CONSTRUCTION, COMPRISING: AN ELONGATED TUBULAR OUTER PART HAVING A CENTRAL OPENING WHICH IS POLYGONAL IN CROSS SECTION: AN ELONGATED INNER PART WHOSE OUTER SURFACE IS POLYGONAL IN CROSS SECTION, SAID INENR PART BEING SLIDABLY DISPOSED WITHIN SAID OUTER PART FOR LONGTUDINAL MOVEMENT WITH RESPECT THERETO, SAID OUTER SURFACE BEING SPACED FROM THE WALL DEFINING SAID CENTRAL OPENING AND AT LEAST TWO CORNERS OF SAID INNER PART BEING ALIGNED WITH AND OPPOSED TO CORRESPONDING CORNERS OF SAID CENTRAL OPENING; FRICTION-REDUCING BODIES DISPOSED IN THE SPACE BETWEEN SAID OPPOSING CORNERS OF SAID INNER AND OUTER PARTS, SAID FRICTION-REDUCING BODIES EACH HAVING A GROOVE INTO WHICH THE ADJACENT CORNER ON THE INNER PART PROJECTS WHEREBY TO GUIDE THE LONGITUDINAL MOVEMENT IN THE INNER PART, THE FRICTION-REDUCING BODIES IN THE RESPECTIVE PAIRS OF OPPOSING CORBERS BEING INDEPENDENT OF AND FREE FROM CONNECTION WITH THE FRICTION-REDUCING BODIES IN THE OTHER PAIRS OF OPPOSING CORNERS, AT LEAST ONE OF THE OUTER AND INNER PARTS BEING RESILIENT AND CONSTRUCTED SO THAT IT CAN BE RESILIENTLY DEFORMED IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL AXIS THEREOF AND BEING OF SUCH SIZE THAT AFTER THE INTRODUCTION OF THE FRICTION-REDUCING BODIES BETWEEN THE OUTER AND THE INNER PARTS ACCOMPANIED BY A DEFORMATION OF THE RESILIENT PART, THE BODIES ARE UNDER A PRESSURE EXERTED THEREON BY THE RESILIENT PART.