Jeieufifie �mtticau. ENGINEERING INVENTIONS. I with wiree that radiate from a central point, eo that the hoisting rope eo contrived to rnn that the bncketcan be • wiree will be held very fi rmly at the center of the frame, controlled by a single rope or chain, and will be opened The propelling of marine vessels forms, and the frame will be cheap and strong. and closed automatically, the apparatus being inexpen· 41 T4e chargeff»' Insertion under this head is One lJoUar a linefor each insertion;

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... lmtt eight words to a line. Adverti8f31lU)nt/J must be rece;1Jed at publica/ian qffiC6 as early as ThU1'8day mornin to appear in next is8 e. the subject of a patent issued to Mr. William O. Rob. I A convertible chair has been patented sive to manufacture and its working easily controlled. bins, of New York city. Compressed air pipes lead by Mr. Edward H. Lewis, of Nashville, Tenn. It is a A carriage axle and box have been pa fro� the stern of a vessel close to the prop � ller bla�es, folding chair of novel design, readily convertible into a tented by Mr. Josiah Fowler, of St. John, N. B., Cana which ar� made to revolve by the force of au at a Il1gh I settee, bed, or cot, a lounge, a child's crib, or a carpet da. The outer end of the axle has no screw or nut to pressure, w�ereby only short propeller � hafts are needor wall paper exhibiting frame; it is composed of three hold the wheel in place, but instead there is a screw cap ed, and friction and danger of breakage IS removed main bent sections, which may be put together without slipped over the bed of the axle, which is screwed by an Fur Sale.-At a low price, a full set of Pat.nt Office A r has be t t d b Reports,exceptingthe yearI843; all but 5volumes bound