SAMPLER Russian patent published in 1995 - IPC

FIELD: civil engineering. SUBSTANCE: sampler consists of upper plate 1 and lower plate 2 with lengthwise slots and thicker parts 4 at the front of plates. Guides in the form of two cylinders 5 with internal and face lids 6 and 7 and having channels to feed oil into the cylinders, pits for sealing rings of collars with face lid 7 being curvilinear from outside, as well as nozzles 8 and flexible hoses are placed between the plates, and in parallel to them. Sample takers including blind cylinders 12 with internal thread 13 and holes 14 for air outlet, detachable cutting cylinders 15 with internal turning 16, external thread 17 and sharp cutting part 18, measured core taking rings 19 and rods 20 for lifting and descending instrument into the well are screwed on free ends of rods 11. EFFECT: improved quality of the samples taken at the expense of smooth thrusting sample takers into the soil and withdrawal of those. 2 cl, 2 dwg