Joint for carbon electrodes
AssigneeUnion Carbide Corporation
InventorFrank J. Dagata
Life of this patent
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Abstract
A joint for electrodes with a peg securing electrode members together produces an electrode joint of superior strength, and with resistance to thermal, and mechanical stress which tend to loosen the joint.
Claims14
A joint for a carbon electrode which comprises:
- an upper member with a bottom surface;
- a lower member with a top surface;
- means for maintaining the top surface and bottom surface in opposing relationship;
- a peg hole extending from the bottom surface into the upper member;
- a peg dimensioned to slide in the peg hole;
- releasable retention means in the peg hole which retains the entire length of the peg in the peg hole, which upon heating of the joint to an operating temperature releases the peg to slide within the peg hole;
- a catch hole extending from the top surface into the lower member, the catch hole being aligned with the peg hole such that when the peg is released, a lower portion of the peg slides from the peg hole into the catch hole with an upper portion of the peg remaining in the peg hole;
- upper securing means which secures the upper portion of the peg in the peg hole after the lower portion of the peg has slid into the catch hole;
- and
- lower securing means which secures the lower portion of the peg in the catch hole after the lower portion of the peg has slid into the catch hole.
The joint of claim wherein the upper member comprises an electrode segment with a female threaded socket and the bottom surface corresponds to the base of the socket with the axis of the peg hole aligned along the center axis of the socket. and the lower member comprises an electrode segment with a threaded male nipple and the top surface corresponds to the end face of the threaded nipple with the catch hole aligned along the center axis of the nipple.
A joint for a carbon electrode which comprises:
- an upper segment with a female threaded socket;
- a lower segment with female threaded socket;
- a threaded nipple screwed into each socket to join the upper and lower segments together;
- a first peg hole extending from the base of the socket of the upper segment;
- a first peg dimensioned to slide in the first peg hole;
- first releasable retention means in the first peg hole which retains the entire length of the first peg in the first peg hole, which upon heating of the joint to an operating temperature releases the first peg to slide within the first peg hole;
- a first catch hole extending from the top face of the nipple into the nipple, the first catch hole being aligned with the first peg hole such that when the first peg is released, a lower portion of the first peg slides from the first peg hole into the first catch hole with an upper portion of the first peg remaining in the first peg hole;
- first upper securing means which secures the upper portion of the first peg in the first peg hole after the lower portion of the first peg has slid into the first catch hole;
- first lower securing means which secures the lower portion of the first peg in the first catch hole after the lower portion of the first peg has slid into the first catch hole.
- a second peg hole extending from the lower face of the nipple;
- a second peg dimensioned to slide in the second peg hole;
- second releasable retention means in the second peg hole which retains the entire length of the second peg in the second peg hole, which upon heating of the joint to an operating temperature releases the second peg to slide within the second peg hole;
- a second catch hole extending from the base of the socket of the second segment, the second catch hole being aligned with the second peg hole such that when the second peg is released, a lower portion of the second peg slides from the second peg hole into the second catch hole with an upper portion of the second peg remaining in the second peg hole;
- second upper securing means which secures the upper portion of the second peg in the second peg hole after the lower portion of the second peg has slid into the second catch hole;
- and
- second lower securing means which secures the lower portion of the second peg in the second catch hole after the lower portion of the second peg has slid into the second catch hole.
Dependencies are inferred from the claim text.