Rule joint


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a knuckle joint having shoulders that abut when the connected pieces come in line with each other, and thus permit folding in one direction only.

See also: Rule

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The rule joint, which connects the top and leaves, may not yet be in your woodworking bag of tricks.
Sand flat any unevenness that may exist at the rule joints on the top surface.