Patent Number: 042257905
Section: claims

1. In radiographic apparatus for manipulating a quantity of radioactive material between a stored position and a use position including a capsule of said radioactive material, a storage unit with a passage through it for storing the capsule in the passage and shielding the surrounding environment from the stored radioactive material, manipulating means for location remote from said storage unit, first flexible conduit means connectible to said storage unit between one end of said passage and the manipulating means, and flexible elongated drive means movable within said conduit means and said passage for moving said capsule between a stored position and a use position under control of said manipulating means, the improvement comprising: reel means mounting said manipulating means and providing a form for coiling said conduit means externally around said reel means, and second conduit means permanently coiled on said reel means for housing a supply of said drive means. 2. Apparatus according to claim 1 wherein said second conduit means is coiled within said form. 3. Apparatus according to claim 1 wherein said second conduit means is permanently coiled in a shape including straight-linear and curved-linear portions. 4. Apparatus according to claim 3 including means for supporting said second conduit means at the outer peripheries of said curved linear portions. 5. Apparatus according to claim 1 wherein said second conduit means is a tube made of a flexible material characterized by low sliding friction to drive means housed therein. 6. Apparatus according to claim 1 wherein said first conduit means is a tube reinforced to resist crushing and external abrasion and said second conduit means is a substantially lighter-weight tube devoid of such reinforcing means. 7. Apparatus according to claim 1 including disconnectible coupler means comprised of a first component fixed to said storage unit at said one end of said passage and a second component of tubular shape fixed at one end to an end of said flexible conduit means remote from said manipulating means, said first component having a tubular aperture for receiving said second component endwise therein, and means for releasably locking said second component to said first component. 8. Apparatus according to claim 1 including a support affixed to said form and mounting said manipulating means, said form including wall means providing a housing, said second conduit means being fixed to said wall means within said housing. 9. Apparatus according to claim 8 including closure means for said housing, said manipulating means including a portion within said housing communicating with both of said conduit means, and a hand crank portion outside of said housing. 10. Apparatus according to claim 9 wherein said first-named conduit means extends through said wall means for communicating with said manipulating means inside said housing.