installation for u0437u0430u044fu043au043eu0440u0438u0432u0430u043du0438u044f and expanding the pipes of small diameter borehole drilling small diameter holes and method using such an installation

摘要

proposed installation for u0437u0430u044fu043au043eu0440u0438u0432u0430u043du0438u044f and increase the containing device (20, 20 ') for u0437u0430u044fu043au043eu0440u0438u0432u0430u043du0438u044f and device (30, 30') to expand, connected to each other with the u0437u043cu043eu0436u043du043eu0441u0442u044cu044e disconnecting.with the specified device (20, 20 ') for u0437u0430u044fu043au043eu0440u0438u0432u0430u043du0438u044f is extensible, and a device (30, 30') for the expansion contains a number of (33u0430, 33b) expansionimplemented with the opportunity of and fixation of at least two different working positions, and the means (33u0430,33b) expansion are u0440u0430u0434u0438u0430u043bu044cu043du043eu043c direction from a device (30, 30 ') for expansion.