THE ADVOCATE OF INDUSTRY, AND JOURNAL OF SCIENTIFIC, MECHANICAL, AND OTHER IMPROVEMENTS. [NUMBER 33. VOLUME X.] NEW-YORK APRIL 28,1855. THl SPEAR'S PATENT MITER BOX. SCIENTIFIC AMERICAN, … wedges, w' w' w w, with clamp heads, pass rect idea of the nature and construction of below d', so that the supports spread out to miter to any angle. The rests, it will be down through an opening in each rest, and the machine, and its adaptability, from the from that axis which is the center of…
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