The following inventions have been patented this week, as will be found by referring to our List of Claims on another page :— SPINNING OAKmi.—A machine for this purpose has been invented by Smith Baldwin, of St. Louis, Mo., which combines the processes of carding and spinning ; and the picked oakum, when supplied to it, is converted into a merchantable state, for the use of caulkers, &c., at one continuous operation. PLATFOKM SCALES.—This invention consists in the peculiar manner of connecting the scale beam with the platform, whereby but little motion is allowed the platform ; and the weight upon the platform is made to bear equally upon the lever that supports it ; it being immaterial on what part of the platform the weight is placed. It is the invention of James Kelly, of Sag Harbor, N. Y., who has assigned it to John Sherry, of the same place. BUILDING SHIPS.—This improvement consists in preventing the vibrations of the sides of the ship, and the consequent leakage at the keel, by arranging diagonally two rods and braces in opposite directions from the keel to the top side of the ship ; said braces and rods bearing against strong knees or shoes, which securely tie the timbers of the keel together. We regard this as a good arrangement, which ought to be adopted in every large steamer. It is the invention of John Reeves, of Brooklyn, N. Y. LIGHTING LANTERNS.—This invention consists in having a match socket attached to a spring, which is secured to the inner side of the door, and held back to the side of the door by a catch. A corrugated plate is attached to the inner side of the lantern, and the parts are so arranged that the match which is fitted in the socket will, when the socket is liberated from the catch, have its ignitible end forcsd over the corrugated plate, and the match being then in a line with the wick, lights the lamp. It is the invention of A. C. Richard, of New-town, Conn. PEEPETUAL LniE KILN.—This invention provides a perpetual kiln, wherein lime and coal, or fuel, may be mixed or burned together perfectly, in the same kiln, without the necesB'ity of using side furnaces or grates ; and the lime, when burned and discharged, is purer, and freer from carbon, ashes, or other impurities which usually escape from the coal or fuel, by reason of imperfect combustion during the process of burning in perpetual kilns of ordinary construction. It is the invention of H. R. Fell, of Texas, Md. liPROVED SHINGLE MACHINE.—This invention relates to an improvement in that class of shingle machines in which a, cii'cu-lar saw is employed for cutting the shingle from the bolts. The improvement consists in the employment of a pendulous frame provided with a proper clamp to hold the bolt, and arranged relatively with a circular saw, and setting device for adjusting the bolt within the frame; the whole being so arranged that the shingles are cut from the bolt with great facility, and adjusted so as to be eut in proper taper form. It is the invention of Robert Law, of Portage City, Wis. CLEARING SEED PINTER TUBES.—This invention consists in arranging a shaft set with edged blades behind the cultivator tubes —said blades revolving with the shaft, and in their revolution passing up alongside of the tubes, and carrying with them such grass, weeds, or obstructions as prevent a perfect entrance of the seed into the soil. T1iis is a device much needed by farmers, judging from the fact that considerable inventive ingenuity has been exercised by previous inventors in constructing a device for accomplishing the clearing of cultivator teeth. It is the invention of H. F. Baker, of Centerville, Ind. PAPER-SLVKING MACHINERY.—The object of this improvement is to prevent th breaking or tearing of the paper, as it passes from the upper one of the second press rolls to the dryer. This is attained by the use of a small roll arranged parallel with the press rolls, between the highest part of the upper press roll and doctor, about opposite the line where the paper should leave the upper press roll, on its way to the dryer, so that the web of paper will pass between it and the upper press roll. The slight cohesion of the web to this Small roll eases it off the upper press roll and prevents it breaking ; and if a slight break should occur in the web, it prevents the edge of the break being carried under the doctor, and thereby increased. This improvement, though simple in its character, is highly important in its results, and is found, by practice, to effect a great increase in the quantity of paper produced in a given time, by saving nearly all the time that is expended when breakages of the web occur. It is the invention of Stephen Rossman, of Stuyvesant, N. Y. PAINT VEHICLE. —This is a new compound for mixing paints, and consists of four fluid ounces of oil of turpentine, put into a bottle with one-quarter of an ounce of gum mastic, and one-eighth of an ounce of caoutchouc. These are well shaken three or four times a day for three or four days, and then allowed to rest for a short time. One gallon of soft soap, which should be one year old, and of good quality, is next dissolved over a fire in one gallon of distilled rain water. One gallon of linseed oil is boiled anci poured into the soft soap and water with frequent stirring, while both are at about blood heat. The gum mastic and caoutchouc solution is then poured from its dregs and added, and after the whole has been well stirred, it is placed over a gentle fire and heated, the heat being increased for about half an hour until it almost reaches the boiling point, but it must not be allowed to boil. The composition is then strained through a coarse cloth, and when cold is ready for use. It makes a paint that is cheaper than common oil paint, and is more durable, owing to the alkali and gums preventing the oil leaving the paint, and being absorbed by the wood. It is also susceptible of a hi'gh polish when well dried, and takes varnish well. A. C. Church, of Union City, Mich., is the inventor.
This article was originally published with the title "Recent Patented Improvements"