FIELD: methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells, particularly subsoil filtering means.
SUBSTANCE: device comprises portable body, which may slide relatively screen body in horizontal and vertical planes. The body includes two separate parts rigidly connected with each other through tightening columns. Upper part is made as slide and receives executive mechanism, drive and working tool mounted therein. Two clips are secured to slide. Double-arm levers having non-equal arm lengths are pivotally connected to clips. Slide is supported by screen body through lever arm and roller rotating about the arm. The slide is connected to manual carrying means, which grips, fixes and moves thereof through the second larger arm. Replaceable prism is connected to lower part of portable body.
EFFECT: decreased labor inputs for filter production.
6 cl, 6 dwg
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