WELL HYDRAULIC GIANT Russian patent published in 1997 - IPC

FIELD: mining; in particular, hydraulic mining of solid minerals from boreholes drilled from underground mine workings. SUBSTANCE: hydraulic giant with nozzle is made in the front part from sections in form of pipes with hinges between them whose rotation axis is perpendicular to pipe axes. The giant is provided with additional hinges on each section, with rotation axis of these hinges coincident with axes of pipes of sections. Additional hinges are made in internal and external bodies. Internal body is connected with main hinge, and external body is connected with pipe of section located on the side of giant nozzle. Recesses are made on external bodies of additional hinges and projections are made on neigh-boring sections on the side of hinges. EFFECT: higher efficiency. 5 dwg