the present invention relates to a device (1) for retrieving objects, such as a pump (2), disposed at the bottom of a deep borehole (3) and connected to the surface (5) by a cable (4).the lifting device (1) comprising a frame (10), a driving means (15, 16, 11, 13a, 13b.non slip) suitable for lead the cable (4) and to allow the ascent or descent of the subject.the portion of the cable (4) out of the driving means is not engaged in a pulley or subjected to the tensile force due to the mass of the object.the lifting device (1) comprising means (18, 19) to avoid du00e9coincement definitely that the cable (4) is stuck in the ways of practice.
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