VICE Russian patent published in 1998 - IPC

FIELD: machining, used for clamping and fastening of objects during their machining, and at bench and assembly work. SUBSTANCE: movable jaw 1 moves in the hole of hollow cylinder 2 fixed in casing 3 by stop 4. Whenever necessary hollow cylinder 2 can move together with the movable jaw to the extreme right-hand position, where its gets fixed again by stop 4. Bodies of revolution 7 of conical-necked nut 5 are made in the form of elliptic cylinders. Handle 8 of clamping screw 6 is installed for symmetric fixing relative to the longitudinal axis of clamping screw 6. Detachable jaws 8 are hinge-joined through rocker 12 to the vice body, and their longitudinal faces are made in the form of working surfaces. EFFECT: enhanced reliability. 5 cl, 6 dwg