DEVICE FOR REMOVAL OF JACKBIT FROM ROD Russian patent published in 2010 - IPC E21B19/18 

FIELD: mining.

SUBSTANCE: invention refers to mining industry, namely to devices for removal of jackbit from rod. Device includes casing interacting with butt-end of jackbit and provided with longitudinal groove for rod, and casing movement unit fixed in groove and containing pivot, installed at right angle to casing longitudinal axis, with handle and working part interacting with rod. Special feature of device is the following: working part of casing movement unit is designed as eccentric roller which outer surface is congruent to outer surface of rod. At that roller may be designed removable and as separate disks secured against rotation with respect to pivot, at that disks are installed on pivot with possibility of radial movement.

EFFECT: enhancement of device operating efficiency and simplification of its manufacturing technique.

3 cl, 3 dwg