, of Roxbury, Paris, held on the ninth of last month (Oct.) a car acts asa guiding lever to make the axles Mass., for improvement in Screw Jacks.— new system of steam engines was submitted by and wheels conform to the curvature of the Patented Nov 14, 1848. road. M. Boutigny whoasgerted, from… … tented Nov. 14, 1848. Fig. 1 is a top view and represents the po- of M. Boutigny, is old and weil known to our The Camera Lucida. sition of the wheels, axles and body of the engineers and was first discovered by Perkins, Thé engraving and description of this ex- INVENTOR’S CLAIMS. an account of…
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