| 摘要 |
(54) Title: APPARATUS FOR MECHANICALLY PROJECTING DEVICES THROUGH TUBES (57) Apparatus is disclosed for projecting a stiffly flexible conduit or cable (3) through a bore of a tube to be cleaned, surveyed or other vise processed, said appar-atus comprising a drum (I) enabling the conduit or cable (3) to be stored wherein in a plurality of wound coils with a distal or free end of the conduit or cable (3) to be projected from the apparatus and into the bore of the tube to be cleaned, surveyed or the like, the drum (I) being mounted for simultaneous axial and rotary motionand drive means (14, 15) being provided to effect the axial and rotary motion of the drum (1), restraining means (4, 5) being provided to prevent radial expansion of the wound coils on the drum (1). + See back of ????
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