SCRAPING SAMPLER Russian patent published in 1995 - IPC

FIELD: mining industry. SUBSTANCE: sampler is connected with the lifting tackle on the well head and has a hollow housing with an opening in the lateral wall. The housing is hinged in the housing cavity of the grooved-shaped scraper with the cutting edge on the upper face end and the cutting ledge on the outer surface of the scraper. The sampler is provided with a load located outside the housing and connected with the scraper with the aid of a flexible link. The free shoulder of the scraper is spring-loaded in the direction from the sampler axle. The flexible link connecting the scraper and the load is equipped along the whole length with the members for the load fastening. EFFECT: ensured automatic operation of the sampler during its descent-ascent for a preset interval of the wall, enhanced confidence of the sample. 2 cl, 3 dwg