pecial drill chuck, form- panying engraving. In this machine the usual vertically to lathes, ordinary braces, ratchet braces, and all other de- ing part of the invention, is provided, and attached to the reciprocating chisel is replaced by an endless chain consist- scriptions of drilling apparatus.… … moted by Mr. Hollingshead, is to work the Lontin system, dered necessary by the peculiar movement of the cutting GREEN’S MORTISING MACHINE, and is patronized by the frequenters of the Gayety, and all edges of the drill, which does not operate or rotate ona who walk through the Strand during certain…
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