ROPE DRIVE OF A IVANOV Russian patent published in 2012 - IPC A01B3/66 B66D1/26 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, lifting and transport engineering and rope conveyors. The rope drive in the form of blocked two multiple-grooved pulleys consists of a case in which the driving (2) and the driven (3) multiple-grooved pulleys are mounted. The driving pulley (2) connected to a shaft (4), whose ends are provided with splines (5), and a driven pulley (3) with the axis (6) rotate in bearings (7). The pulleys are connected by gears. Along the edges of the pulleys pivot rings (9) are mounted which fully accept all cumulative force of contraction of the pulleys. A pressure roller (10) located in the mobile bearings (11) is pressed against the driven pulley (3) via spacers (12) by eccentrics (13) fixed to the shaft (14) with a lever, only along edge streams of the driven pulley (3) providing a tension on one or the other descending branch of the rope in case of reverse.

EFFECT: simplified design and ease of management.