ring gate
- a gate having a widened opening containing a centered disk to prevent molten metal from falling in a direct vertical stream.
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Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ring gate
Historical Examples
Basal ring square, with two lateral spines, and two triangular gates scarcely one-third as broad as the ring-gate.