Core-sampling appliance for graphite-type nuclear reactor

Claim 1

CORE SAMPLING APPARATUS FOR OBTAINING SAMPLES FROM THE SIDE WALLS OF A BORE COMPRISING AN ELONGATED ELEMENT INSERTABLE INTO THE BORE FOR AXIAL DISPLACEMENT THEREIN, AN END-CUT CUTTING TOOL TAPERED TOWARD ITS BASE MOUNTED ON SAID ELEMENT AND ROTATABLE ABOUT AN AXIS PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID ELEMENT, MOTOR MEANS OUTSIDE OF THE BORE FOR DRIVING SAID TOOL, POWER TRANSMITTING MEANS CONNECTING SAID MOTOR AND SAID TOOL, A TOOL BASE, FORWARD FEED MEANS FOR MOVING SAID TOOL ALONG ITS AXIS, FOR BREAKING THE CORE SAMPLE OFF AT ITS BASE AND FOR REMOVAL OF THE SAMPLE INCLUDING SAID TOOL BASE MOVABLE AT AN ANGLE TO THE LONGITUDINAL AXIS OF SAID ELEMENT, TWO PAIRS OF GUIDE LUGS FIXED TO SAID BASE, OPPOSED ELONGATED GROOVES IN SAID ELEMENTS RECEIVING SAID PAIRS OF SAID LUGS FOR SLIDING MOVEMENT THEREIN, A PAIR OF CAM GROOVES MOUNTED FOR LONGITUDINAL MOVEMENT IN SAID ELEMENT AND CONSTITUTING AN INCLINED RAMP WITH RESPECT TO THE LONGITUDINAL AXIS OF SAID ELEMENT, SAID RAMP ENGAGING A PAIR OF SAID PAIRS OF LUGS AND A MANUALLY ACTUATED ROD SYSTEM FOR MOVING SAID RAMP, SAID ELONGATED GROOVES HAVING LATERALLY EXTENDING PORTIONS AT THE EXTREME OUTER POSITION OF SAID TOOL, ENTERED BY THE OTHER PAIR OF SAID PAIRS OF LUGS WHEREBY SAID TOOL IS TILTED AND THE SAMPLE BROKEN FROM THE BORE, THE TAPER OF SAID TOOL BEING PROVIDED FOR TIPPING OF SAID TOOL WITHOUT BINDING OF SAID TOOL IN THE CUT.