i &W9 *S 4 THE ADVOCATE OP INDUSTRY, AND JOURNAL OP SCIENTIFIC, MECHANICAL AND OTHER IMPROVEMENTS. NEW YORK JUl^Y 20, 1850. [NUMBER 44. VOLUME 5.] 16 inches wide and the tape is drawn out 16 THE Scientific American, inches, the inner plate will show that in a ROTARY BOARD AND LOG RULE, AND MEASURE.… … inches, a corresponding figure will be found on New York to London in eight days, and per- from the wheel, which is inside; 4 is a plate This improved instrument is the invention the outer edge ofthe inner plate 6, underwhich haps seven. Halifax might yet become the distinct from the case, and is…
Patents · Ment · Claim · Plate · Manner · Inner plate · Railroad · Hemp rope · Engravings represent · Scientific American · Patent office · Great number · Large property · Wire rope · Drill tooth
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