The building and ornamental stones of North Carolina (1906)
Watson, Thomas L. (Thomas Leonard), 1871-1924, Laney, Francis Baker, 1875-1938, Merrill, George P. (George Perkins), 1854-1929 · Raleigh, [N.C.] : E.M. Uzzell, Public Printer · leaf 341
d down by hand implements, such asthe point, chisel, tooth chisel, pitching chisel, drove, axe or pean ham-mer, and the patent or bush hammer. Here, too, machinery is cominginto use as in the pneumatic stone-surfacing machine shown in Fig. 10. 248 BUILDING AND ORNAMENTAL STONES OE NORTH CAROLINA.… … Fig. 8.—Ingersoll-Sergeant channelling machine. composed of crushed steel or chilled iron is sometimes used as the cut-ting medium, but is liable to rust and stain the stone. Lathes are usedby some of the larger firms for turning columns. A monster machine METHODS OF QUARRYING AND WORKING STONE.…
Building stones · Quarries and quarrying
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