claim first A head block for sawmill carriages provided with a block or base piece. B of wrought iron substantially as set forth. Second Connecting the rack C to the block or base piece B by means of a dovetail rib or projection b on the rack a of the block or base piece and fitted in a reless c in the back surface of the rack substan tially as described. Third The combination of the arms D H cranks F G and slide, scientific american, 1862-10-11
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claim first, head block, sawmill carriages provided, block, base piece, B, wrought iron substantially, set forth, Second Connecting, rack C, block, base piece B, means, dovetail rib, projection b, rack, block, base piece, fitted, reless, back surface, rack substan tially, described, Third, combination, arms D H cranks F G, slide, scientific american, 1862-10-11, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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