FIELD: engineering industry. ^ SUBSTANCE: invention deals with engineering industry and may be used for the connection along the generatrix of cylinder cores with different cross-sectional radius. G-clamp includes a shackle connected in the upper part with the nut, and in the lower part - with support plate. In the nut there is vertical clamp screw connected with moving plate. On support and moving plates there located are lower and upper slip jaws one over the other correspondingly. Each cylinder jaw has cylinder groove the cross-section of which matches cross-section of cylinder core located in it. ^ EFFECT: provision of high accuracy mating of core molds cross-sections. ^ 4 dwg
