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Stone-mold′ing ma-chine′.

A machine employed for working moldings in stone. Its general construction is that of one form of stone-saw, except that the frame carrying the revolving grinders may be adjusted by a screw beneath, to adjust it to the thickness of the slab being worked.

Stone-molding machine.

The grinders a b c (Fig. 5868) are turned from solid cylinders of cast iron to the desired shapes Each has a central hole fitted to the axis of the driving-pulley, and is secured thereto by a key or a side-screw. The grinder is made to revolve, so as to cut upward toward the surface, and is kept constantly supplied with moist sand. Moldings on the edges of narrow slips are sometimes wrought in pairs, the two pieces being cemented together at their sides, as shown at c See stone-cutter; stone-planing machine. See also Fig. 3055.

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