variously modified. But what we claim as our invention, and desire to secure by letters patent, is the method, substantially as herein described, of supplying currents of atmospheric air to the products of the combustion at or near the throat leading from the fire chamber to the flues, in combination with what is known as Nott's fire chamber, having the draught-throat leading therefrom between the top and the grate, that the upper part of the fire-pot may constitute a feeder or chamber of preparation, substantially in the manner and for the purposes specified. JAMES SHIELDS, No. 7892.-Improved Parallel Vice. What I claim as my invention, and desire to secure by letters patent, is the attaching the lower end of the moving jaw of the vice to a block that is attached to, and moves with, the end of the screw, in the manner and for the purposes herein described. SAMUEL R. SIMPSON. No. 7893.-Improvement in Ox Yokes. What I claim as my invention, and desire to have secured to me by letters patent, is arranging in the beam of the yoke two draught staples, some six inches apart, in lieu of one at the centre; and the combination, or use therewith, of a branch chain of proper length, connected to the main draught chain at a proper distance from the beam, and the adjustable hook for modifying the length of the branch chain, as hereinabove specified, and for the purpose set forth. ANDREW L. SIMPSON. No. 7894.-Improved means for revolving the Breeches of Repeating Fire-Arms, What I claim as of my own invention, and desire to secure by letters patent of the United States, is the cranked shaft (e, c, b) operated by the tumbler having its axis of vibration in the line, or nearly so, with the axis of rotation of the cylinder, substantially in the manner herein set forth. JAMES WARNER. No. 7895.—Improvement in the manufacture of Caviar. What I claim, therefore, as my invention, is the improvement in the process of salting the roe or ova, whereby extraneous matters are separated; the same consisting in suffering it to stand in pickle, or a strong saline solution, until it undergoes a process or change by which the ova, and such extraneous matters, separate from one another-the former rising to the surface of the pickle, while the latter falls to the bottom of it. And I also claim the combination of the male sturgeon oil, as above mentioned, with the salted ova, for the purpose of improving the manufacture thereof as specified R. G. WESTACOTT. No. 7896.-Improvement in Tires for Railroad Car Wheels. What I claim, therefore, as my invention, and for which I wish to ob tain letters patent, is making the tire of car wheels, by the combination. of several distinct pieces, so arranged and disposed as mutually to support and confine each other, substantially in the manner above described. T. T. ABBOT. No. 7897.-Improvement in raising Carriage Tops. What I claim as my invention, and wish to secure by letters patent, is the application of a spiral spring to operate upon the braces of a carriage top, so as to assist in supporting and elevating the top, substantially as described and shown. JOHN L. ALLEN. No. 7898.-Improvement in Looms for weaving Piled Fabrics. I do not wish to limit myself to the particular mode of connecting the series of bars or plates to admit of the required vibration, as other modes of connecting them may be employed; as, for instance, instead of hanging them back of the lathe by pendulous jointed links, the rods by which they are connected may be adapted to work in slides; but I have described and represented the mode which I have essayed with success. and deem the best. What I claim as my invention, and desire to secure by letters patent, is connecting the intersecting bars or plates with the loom, substantially as described, so that they shall be free to vibrate and yield to the beat of the lathe and shedding of the warps, as described. And I also claim, combining with the said vibrating bars or plates, a stop or stops, to arrest them at the required point, substantially as described, that the continued beat of the lathe may cause the fabric to move forward over them, as described. E. B. BIGELOW. No. 7899.-Improvement in connecting and disconnecting Hubs and Axles. What I claim as my invention, and desire to secure by letters patent, is my device for detaching a wheel from its axle-tree by means of the plate, C, C, acting as a wrench for unscrewing the nut, B, which holds the wheel to the axle; said plate being advanced and withdrawn by the screw, D, substantially in the manner herein described. A. M. BILLINGS. No. 7900.-Improvements in Tuyers. What I claim in the foregoing as my invention, and desire to secure by letters patent, is the curved partition in the air chamber, placed opposite the orifice of the windpipe, with its lower edge extending beneath this orifice; the arrangement and construction of the partition being such that it serves the double purpose of directing the blast upwards and facilitating the descent of the cinders, as herein set forth. JOSEPH DORWART. No. 7901.-Improvement in Rotary Pumps. I do not claim to be the inventor of the centrifugal pump. I do not claim simply using collars extending from the openings in the outer case to the openings in the piston case, to prevent the water or air from passing between said cases; nor extending the inlet or suctionpipe inwards in such a manner as to supply the place of one of said collars-this having already been done; but I only claim thus extending said pipe when the collar on the opposite side is made adjustable, and the parts so arranged that the joints of the piston-case with said pipe and collar may be tightened, as they wear by tightening the adjustable collar only, as described; the piston and case, and the suction pipe being constructed substantially as herein described. J. STUART GWYNNE. No. 7902.-Improvement in changing a reciprocating into a rotary motion. What I claim as my invention, and desire to secure by letters patent, is the application to steam or other engines, or machines of a mechan ical arrangement, whereby the effect of the applied power is rendered equal, (or nearly so,) both on the outward and return strokes of any reciprocating or vibrating movement, using for that purpose the aforesaid combination of the cranks, connecting rods, and oscillating lever, or their equivalents, as described in the above specification, and shown in the accompanying drawings. JOSEPH HARRIS, JR. No. 7903.-Improvement in Cast Iron Car Wheels. What I claim as my invention, and desire to secure by letters patent, is the mode of constructing a cast iron car wheel, by the use of spokes or arms, composed in part of portions of a hollow cone, connected by brackets, and in part by straight spokes or arms, forming a continuation of plates and spokes, possessing the advantages and obviating the objection of both. GEO. R. MCFARLAN. No. 7904.-Improvement in Reflectors for Street Lamps. What we claim as our invention, and desire to secure by letters patent, is making the faces of the reflector in concave rings, substantially in the manner and for the purposes herein set forth. HUGH SANGSTER, No. 7905.—Improved Steering Apparatus. What I claim as new in my invention, and desire to secure by letters patent, is the combination of the cranks, H, H, and the connecting rods, K, K', which are attached by universal joints to the projections or arms, X, X, on the rudder post, the cranks having a worm-wheel, G, on their shaft or axis, which gears with and is actuated by an endless screw, F, on the axle or shaft of the steering wheel, the whole of the parts being arranged in the manner substantially as described. JAS. E. ANDREWS. No. 7906.-Improvement in Carriages. What I claim as my invention, and desire to secure by letters patent, is the arrangement of two bars or reaches, placed in connexion with the straight reach, as above described, and combination with the spring-rod and cross-bar, substantially in the manner described. No. 7907.-Improved Propeller. JOHN JONES. What I claim as my invention, and desire to secure by letters patent, is a propeller, constructed as herein described, in such manner that any one of its blades in any line drawn either parallel or perpendicular to its entering edge shall have the curvature of a parabola produced, as herein set forth. A. W. THOMPSON. No. 790S.-Improvement in Brick Presses. Having thus fully described my invention, what I claim therein as new, and desire to secure by letters patent, is— First. I claim, in combination with the clay ducts and alternating carriage of moulds, the rods, g', with their knives, H', (for the purpose of cutting off and forcing into the moulds the regular quantity of clay,) and sliding plate or gafe, Z, for the purpose of opening and closing the communication between the clay ducts and moulds, as herein described and represented. Second. I claim the arrangement of the pins, n, n, connecting rods, o, o, and standard, N, with its arm, Q, for the purpose of removing the brick after it is raised from the moulds, when the same are operated by means of the cranks, as herein described and shown. J. SCHEITLIN. No. 7909.-Improvement in Stoves. Having thus described my improvements in the combined open and air-tight stoves, and shown the advantages of the same, I wish it to be understood that I do not claim the device of sliding doors between parallel jambs or plates for the purpose of concealing the same. But what I do claim as new, and desire to secure by letters patent, is the providing of the sliding doors, A, with flanges, H, H, on their vertical edges, the real flanges serving the purpose of hinges-in opening and closing the same, and also serving to form air-tight joints when the doors are closed; and the front flanges serving, in connexion with the projecting ends, E, E, of side plates, B, B, to relieve the appearance of a joint. when the doors are opened, as before described. I also claim the providing of the side plates, B, B, with projecting front plates, F, F, for the purpose of forming fronts to the spaces into which the doors are slid when open, to conceal the same; and in connexion with the rear flanges, H, H, to form the hinges of the doors when closing the same; and also to conceal a portion of the front flanges when the doors are opened and slid back, as described. GEORGE H. THATCHER. No. 7910.-Improvement in Convertible Plough Stock. What I claim as my invention, and desire to secure by letters patent, is so constructing a subsoil plough, with removable mould board and cutter, in combination with the tri-pronged cultivating teeth, that the same stock may be used either for a subsoil plough or common ploughing and cultivating the land, as herein set forth. EDWARD T. PARKER. No. 7911.-Improvement in Tools for embossing Backs of Books. I do not claim forming various devices by gluing or securing loose or detached tools to a surface, as that is common. But what I do claim as my invention, and desire to secure by letters patent, is forming circular embossing, gilding, or lettering tools of any required pattern for embossing, gilding, and lettering book-covers, by having a case or hollow metal cylinder, B, fitting on a roller, A, and having an opening, b, b, or openings, in it of any required form for a panel or other border, the part of the periphery of the roller, A, within the opening or openings in the case, having any required number of small tools, c, c, c, of any suitable form or pattern secured to it; the surfaces of the said tools standing even with the outer face of the case or cylinder, B, or by the employment of any number of tools consisting of parts of a hollow cylinder secured to a solid cylinder, substantially in the manner herein described. CHARLES STARR. No. 7912.-Improved Lee-way Indicator. What I claim as my invention, and desire to secure by letters patent, is hanging the vane, E, loose at the bottom of the rod, C, which carries or communicates with the pointer, and holding it either in position for operation or secure within the vessel, above the bottom of the keel, by means of a spring, d, or its equivalent, operating substantially as herein shown, and for the purposes set forth. A. A. WILDER. No. 7913.-Horse Shoe Nail Machine. What, therefore, I claim is the simple combination of the punch, the slotted bed-die, the heading die, the header slide, discharging orifice, and header as arranged, constructed, and made to operate together, substantially as specified; or, in other words, their arrangement and construction essentially as explained, whereby they are made to separate the nail blank |