Reported Officially for the Scientific AmericanIssued from the United States Patent Office FOR THE WEEK, ENDING JANUARY 18,1853. TREADLES OF LOOMS—By Robert "W. Andrews, of Stafford, Conn.: I claim operating each, treadle, by means of a mover, having two outwardly acting cam surfaces of unequal lengths, combined in one piece, aad producing the movements and retentions, substantially set /orth. I also claim such, a form and arrangement, respectively, of the treadles, as can be reversed in their poaitions upon their fulcrums, and thereby cause a reversal of the movement and retentions of the said trfeadles, as set forth. BEDSTEAD FASTENINGS—By Chas. L. Bander, of Cleveland, Ohio : I claim the fastening of bedsteads by the use of a metal bar, having upon its extremities, arms, with inner faces, formed of sections of screws, which, arma work against the faces of castings secured in the bed posts, and to the ends of the rails, thus drawing the ends of the rails against the posts; the facings of these castings, against which the arms of the bar work, being likewise constructed of sections of screws, the joint being kept close, and the bedstead firm, by the pressure of the slat frame) caused by the weight of the bed, and its occupants, upon arms attached to the metal bar, thus forming a self tightening fastening;, the whole being constructed and arranged as set forth. MACHINERY roa REDUCING METAL BARS—ByD. H. Chamberlain (assignor to C. G. Howard), ofBos-ton, Mass.: I claim the combination of the bolster, with the three rollers, as arranged and made to operate together, substantially as specified, the object of the said bolster being to prevent the over-riding or squeezing out of the metal, so as to form a fin between the rollers. SADDLE TREES—By JOS. Contner, of Milroy, Pa.: I claim connecting the bridge spring seat to the pommel of the saddle, by hooking or fastening the hook or curvature, oa the front end of the longitudinal centre spring of the bridge spring seat, to the semi-oval or semi-circular steel or iron-plate or strap, fastened down, underneath the pommel, by screws or otherwise, through its legs to the legs of the pommel, to give add.tion&l spring or play, by its motion on its pivots, to the seat, and to allow the bridge spring seat to "be disconnected from the frame of the saddle, when necessary, and to strengthen the pom-msl by rendering the hole through it, near the horn (which weakens it), for connecting with the seat, unnecessary. DRIVING CIRCULAR SAWS, &c.-—By George & David Cook, of New Haven, Conn.: We claim the curved or hooked tooth pinion acting in the manner set forth. HARNESS BOARDS FOR JAQII,A.RD LOOMS—By Edward Everett, of Lawrence, Mass., and S. T:~Thomas of Lowell, Mass, :? We claim the sectional harness board, in combination with the movable supporting "bars, placed on each side of the frame, for the purpose of adjusting and retaining said harness boards, in the position required j the whole constructed, combined and arranged as specified. WOOL CONDENSERS—By James S. Hogeland, of Lafayette, Ind.: I claim the method described, of detaehing the ropeings from the rub roller, and guiding them on their passage to the spool, in such manner as to prevent them from being unequally deflected, and thereby unequally stretched, by means of a relief and guide roller, arranged, and operating as set forth. SCREW CUTTING DIES—By John Griffiths, of Philadelphia, Pa.: I claim the circular die with an off-sett, which makes a cutting edge, which is held in position by a bolt and screw, and the threads which are cut in its periphery (Joeing parallel, instead of having a running pitch, as described. COMPOUNDS FOR STEREOTYPE PLATES—By J. L. Kiagsley, of New York city : I do not claim the mixture of the gums, gutta percha, india rubber, etc., with other non-elastic gums, resins, etc., or shellac, sulphur, etc., nor do I claim vulcanizing, nor do I use vulcanized compounds, nor do I claim mixing the elastic gums with the alkaline earths or earth proper, nor with the carbonates, nor the sulphates of these ba.368, as pulverized marble, plaster of Paris, epsotn salts, etc., all of these things having been done .before by Nelson Goodyear and others, for hardening and otherwise modifying the elastic gums, but I claim the making of stereotype moulds and plates of the raw or uncured gum, combined with the pulverized oxyde of iron and antimony, or their equivalents, as set forth. CORN SHELLERS—By J. P. Smith, of Hummels-town, Pa.: Pa.: I claim the bevelled spring blocks or shelling bars, in separate] pieces, in the manner and for the purpose set forth; but I do not claim to be the inventor of spring blocks or shelling bars. VALVES OF ROTARY STEAM ENGINES—By J. W. Webb {assignor to Benj. Gould), of Aurora, N. Y.: I claim making two exhaust openings, such as described, separate and distinct from each other, through each steam and cut-off valve, said valves having seats on the uppsr as well as lower side of the steam chamber, each of said exhaust openings communicating with the exhaust chamber through apertures in the upper side of the steam chamber, which are opened and closed at pleasure, by slides, used in connection with the valves, for governing or reversing the engine. SEED PLANTERS—By Samuel & Wm. H. Withe-row (as&ignor to Samuel Witherow), of Gettysburgh, Pa.: We claim arranging the spring and roller within a tube, forming one end of the hopper, in auch manner as to prevent any more seedfromleaving the hopper than is required for planting, the whole arranged as set forth. Also, the arrangement of the drag bar under Ihe plow beam, and passing through the adjustable hanger, and a slot in the neck of the mould board, for the purpose of giving additional lateral support to it, and protecting it Irom the earth, which runs up on the mould-board, in turning the furrows, the wkole being arranged and combined as described.