CAST METAL CASES FOR SPRING BALANCES.--John Chattillon, New York city.--This invention relates to a new manner of arranging the cast metal cases for spring balances, so that they can be made less expensive and simpler than they are now made, and consists in fitting the iron, to which the upper end of the spring is secured, directly through the upper head of the case, instead of using an additional head in the case for that purpose. TWEERS.--John B. Himberg, Frederick City, Md.--This invention relates to a new tweers, which is so arranged that the center part or ring can be easily taken out, whenever desired, but not accidentally, by a hook or stirrer, and that it can be easily cleaned and taken apart whenever desired, and that it may conduct a strong blast of air to the fire. PUNCH.--C. D. Flesche, New York city.--This invention consists in arranging a punch in such a manner that it consists of two parts, which are firmly connected together for cutting the metal, while for bending the same, an inner sliding punch will be moved out of the stationary cutting punch, thus making both operations by one instrument, and avoiding the removal of the article from the cutting to the bonding punch, which was heretofore necessary. RAILROAD CHAIR.--Leander Pollock, Matteawan, N.Y.--This invention consists in making the chair of two pieces, each piece consisting of one cheek and of a portion of the case. When the two pieces are connected, the base of one rests upon the base of the other, the line of division between the two bases being inclined so that as the rail presses upon the upper base, it, will tend to force the same downward on the incline, whereby the two cheeks will be brought together. FIRE LADDER.--Johan Blomgren, Galesburg, Ill.--The main feature in this invention is a telescopic tube, expanded or closed by a coil fitting within it, and worked by a toothed wheel. HARVESTER.--Francis C. Coppage, Terre Haute, Ind.--The object of my invention is to render more simple and effective the machinery for operating and adjusting the cutter bar and the reel of harvesters. BOAT-DETACHING APPARATUS.--David L. Cohen, Pensacola, Fla.--The object of this invention is to furnish a device by which a ship's boat can be readily shipped or launched at sea, without danger of capsizing or fouling. DEVICE FOR HITHING HORSES.--Samuel Galbraith, New Orleans, La.--This invention is a neat, cheap, and durable device, designed to be attached to halters used in hitching horses, mules, etc., to prevent their being thrown, hung, or injured. HYDROSTATIC MACHINE.--Dr. J. R. Cole, Kenton Station, Tenn.--The object of this invention is to construct a machine which, by the application of but little power, will raise a stream of water to any desired hight, to furnish motive power for machinery or for other purposes.