THE ADVOCATE OF INDUSTRY, AND JOURNAL OF SCIENTIFIC, MECHANICAL, AND OTHER IMPROVEMENTS. [NUMBER 27. NEW-YORK MARCH 17, 1855. VOLUME X.] screwing into their backs. The upper sur- in IMPROVED BEVEL PLANES. face of the bar, D, is graduated in degrees, SCIENTIFIC AMERICAN, … The edge of the stile is then planed down nation, and experience has shown that in common axis, and each of which is adjust- The annexed engravings are a perspective till the depth gauge comes in contact with many cases much of the iron has had to be able and capable of being secured in any po-…
