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Twin′ning-ma-chine′.

A machine for cutting two combs (twins) from the single piece. It is said to have been invented by Mr. Thomas of Philadelphia. The cutter consists of two chisels which act perpendicularly and alternately upon the plate which passes beneath them. Each chisel cuts one side of two teeth, and severs one from the opposite back at each stroke. See comb.

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John F. Thomas (1)
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