it having been attempted to propel such machines by flapping instruments called wings, by revolving screws, by paddles, and by other similar means. I am also aware that machines thus attempted to be propelled have been furnished with jointed inclined planes, for the purpose of guiding them, in the manner of the tail of a bird; it is to be understood, therefore, that I do not claim as of my invention the mere application of inclined planes for the decomposition or resolution of the ascending and descending forces. But what I do claim as my invention, and desire to secure by letters patent, is the combination of inclined planes, substantially as herein described, with an äerial machine, or balloon, which is made to ascend and descend by a change in its specific gravity, as set forth; the ascending and descending forces decomposed or neutralized, and resolved into a horizontal one, or rather into a progressive line more or less inclined to the horizon, by the aid of atmospheric resistance; whereby the whole machine is impelled forward, and the direction changed at pleasure, by altering the inclination of the planes; the same being effected substantially as herein described. But it is to be distinctly understood that I do not limit my claim to the number or to the form of the inclined planes, or to the particular manner of operating them, or to the manner of obtaining an ascending and descending force, so long as the same is effected by a change of the specific gravity of the balloon, which, it will be evident, may be effected by the generation of hydrogen, as well as by its discharge."

31. For an improved Surgical Instrument called the "Uterinator;" Daniel Gale, Boston, Massachusetts, October 16.

"This instrument is to be employed in the cure of chlorosis, amenorrhoea, menorrhagia difficulties, and in many uterine diseases; its object being to assist the surgeon in the introduction into the uterus of such injections as are generally used in the cure of such irregularities or disorders." It consists of a tube of silver, or other suitable metal, about nine inches in length, and in many respects resembling the instrument called a 'catheter.' One end of the said tube is rounded and pierced with small holes, and terminates in a small knob or button, and the other end is bell mouthed.

Claim. "I do not claim the employment of a metallic or flexible tube in the operations necessary in uterine affections; but what I do claim, is my improved instrument, having a knob at one end, and an expanded mouth-piece at the other end, or being constructed without the said mouth-piece, but in other respects substantially as described -the same being for the purposes as hereinbefore specified."

32. For an improvement in Spinning Machinery; Francis McCully, Jr., Paterson, Passaic county, New Jersey, October 19. This improvement is fully expressed in the followingClaim. What I claim as my invention and improvement, and desire to secure by letters patent, is giving to the bobbins the required rotary and traversing motion as herein described, by causing them to

rest on the peripherics of wheels arranged on a horizontal traversing shaft, whether applied to the cap frame, live spindle throttle, or other modes of spinning substantially the same, in which the bobbins receive rotating and traversing motions."

33. For an improvement in the Valves of Steam Engines; Frederick Ellsworth Sickels, New York city, N. Y., October 19.

Claim. "What I claim therein as new, and desire to secure by letters patent, is-1st. My improvement in the periods of the movements of the valves, by which they are opened and closed relatively to each other, and to the movement of the piston; by means of which, the piston completes each stroke in equilibrio, or nearly so, without admitting steam against the movement of the piston, by a lead to the steam valve, which is effected, as before stated, by opening the lower exhaust-valve before the end of the upward stroke of the piston, and before the upper exhaust-valve is closed, and opening the upper exhaust-valve before the end of the downward stroke of the piston, and before the lower exhaust-valve is closed; the movement of the steam valves being so regulated as to admit steam to the cylinder only after the exhaust-valve on the corresponding end of the cylinder has been closed.

"I also claim as my next improvement, and as a means of carrying into effect my first and essential improvement, the arrangement of the toes on the rock-shaft, in such manner relatively to the location and form of the feet on the lifting rods, that at the middle, or nearly so, of the rocking motion of the rock-shaft, both lifting rods, with their exhaust-valves, shall be partly up, as herein described; and I also claim, in combination with this arrangement, the slip of the lifters on the steam-valve stems, as described, to insure the closing of the exhaust-valves before the opening of the steam-valves on the corresponding ends of the cylinder, as herein described.”

Without drawings, the above improvements could not be more clearly pointed out than they are in the claim.

34. For an improvement in the machine for Harvesting Wheat and other kinds of small Grain; George Esterly, Heart Prairie, Walworth county, Wisconsin, October 22.

This is for an improvement in that kind of machines by which the heads of the plants only are cut off, and the straw or stocks permited to remain.

The box which receives the grain is supported on wheels, and is provided with a permanent knife in front, and a rotating reel with beaters which carry the heads of grain up against the permanent knife. to cut them off. This reel is set in motion by a belt at each end that passes around a wheel on the carrying wheels of the machine, it be ing deemed important to have the reel of such length as to require a belt at each end, and as this would occasion difficulty in turning the machine, the reel is made in two parts, the shaft of one half being tubular to receive the solid shaft of the other. The axle-tree of the supVOL. IX, 3RD SERIES-No. 6.-June, 1845.

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porting wheels works in adjustable boxes connected with the body of the machine so as to enable the operator to adjust the machine to the average height of the grain to be harvested, and in addition to this arrangement the body is connected with the horse frame at the axletree, and by means of a lever connecting the two, the attendant can adjust the cutter to the varying height of the grain in the field.

Claim. "What I claim as my invention, and desire to secure by letters patent, is the mode of adapting the machine to different and varying heights of grain, by the combination of the adjustable boxes which connect the axle of the wheels with the receiver to which the cutters and reel are attached, in combination with the lever that connects the receiver with the horse-frame, as described.

"I also claim as my invention, and desire to secure by letters patent, making the reel in two independent parts, the shaft of one passing through the shaft of the other, so that they can turn with velocities corresponding with the velocities of the main wheels in turning curves of various degrees, as described, and removing the strain from the axle of the reel, cutters, and propelling gear, as herein set forth."

35. For an improvement in the Current Water Wheel; J. D. Robinson, Peori, Illinois, October 24.

The buckets are cach composed of several narrow strips attached. to chains hinged to a cylinder, so formed as to permit them to fold in one direction but not to go beyond a line radiating from the centre of the cylinder to which they are jointed-when acted upon by the current, these buckets are thrown open, but so soon as they begin to make back water they fold on the periphery of the cylinder and prevent undue resistance.

Claim. "Having thus described my invention, what I claim therein, and desire to secure by letters patent, is the combination of the cylinder and buckets, constructed and arranged in the manner and for the purpose above described."

36. For improvements in the Lathe for Turning Irregular Forms; Edwin Tucker, Bucyrus, Crawford county, Ohio, October 24. This is for a modification of Blanchard's well-known machine for turning irregular forms, in which the pattern and the piece of wood to be turned are put upon opposite sides of a rocking frame, and the pattern and cutter-wheel on a carriage that has but one motion from end to end. On the cutter carriage there is a rocking shaft, with a pattern wheel on one end, and a burr cutter on the other, to smooth or finish the work.

Claim. "What I claim as my invention, and desire to secure by letters patent, is arranging the pattern on one set of arms of a tilting or vibrating frame, and the article to be turned or formed on another. set, vibrating on the same centre, and with them, as herein described; the gearing for communicating motion to the pattern and mandrel being arranged at one end of the tilting or vibrating frmae, substantially as herein described. I also claim arranging the smoothing wheel and

small pattern or guide wheel, on different sets of arms vibrating together, and on the same centre, attached to the frame of, and traveling with, the reducing and main pattern wheels, as described; and this arrangement of the small smoothing and pattern wheels I claim, in combination of the pattern and article to be formed, as above described."

37. For improvements in the Method of Regulating the Draught of Stoves and Furnaces; Joseph Saxton, and George Elliot, assigned to Harned & Elliot, Philadelphia, Pennsylvania, October 30. In this stove, all the joints are made with the view to have them all air tight, as near as practicable, by luting or other known means.— The fuel is introduced through a hole in the top covered by a disk, having a flanch around it, and dipping into sand contained in an annular trough, or cup. The ash box, which is circular, is also provided with an annular cup containing sand, which, when borne up, receives a rim, or ring, surrounding the opening of the grate, and for the purpose of bearing up the ash box it rests on three circular inclined planes, which force it up when turned partially around; when let down it can be drawn out in the usual manner.

The air for feeding the fire is admitted through a small hole governed by a valve connected with a compensation bar attached to the stove. This compensation bar is composed of two metals of different expansibility, the most sensitive being placed next the stove, and the connexion between the bar and the valve is by means of a regulating screw-when the temperature is too great the bar expands, and permits the valve to close and cut off the supply of air, and when it contracts the valve is opened to admit air.

Claim. "We do not claim the use of a compensation bar regulating the heat of the stoves; but what we do claim is the manner herein described, of combining with our stove, or any other substantially the same in principle, the compensating bar; the construction and arrangement being substantially the same as herein set forth.

"We also claim the manner of closing the draught by means of the combination of the ash-box, sand lute and inclined plane, in the manner herein set forth."

38. For an improvement in the Cooking Stove; John W. Riggs, Fort Plain, Montgomery county, New York, October 30.

The main fire chamber of this stove is placed above the oven, in a manner will known to stove makers, the draught being admitted through an aperture in front, and near the top of the stove and descending to the bottom of the fire chamber, between the front plate of the stove and the front plate of the said fire chamber. This simply heats the top of the oven and such boilers as may be adapted to the top of the stove; and for the purpose of heating the front, bottom, and back of the oven there is an additional fire chamber placed in front, and on a level with the oven. The draught from this passes out from

the upper part of the back, descends between the back plate of this fire chamber and the front plate of the oven, under, and then up the back of the oven to the chimney. There is a space left between the front plates of the stove and oven, to prevent overheating the front of the oven. Another object of this additional fire chamber, we are told, is to combine in one a winter and summer stove.

Claim. "I do not claim an extra stove or fire chamber, nor the construction of my main stove; but what I do claim as my invention, and desire to secure by letters patent, is the manner in which I have combined the extra fire box with the main stove; that is, there being between the fire box and the oven, three division plates, or two flue spaces, for the purpose above described-the main stove being constructed substantially as described, viz: having a fire chamber above the oven, and the flues and dampers arranged and operating as set forth."

39. For an improvement in the Self Setting Saw Mill; Nathaniel P. Stearns, Linklaen, Chenango county, N. Y., October 30. Without drawings we could not give a clearer notion of this improvement than will be found in the following.

Claim."I do not claim as my invention the combination of the right-angle lever with its jointed arm, and the trip-lever operated by the inclined bar to set the log, as this has been applied to set the tail end of the log, the levers being brought back to their appropriate position for a repetition of this action by a spring; but what I do claim as my invention, and desire to secure by letters patent, is reversing this arrangement in combination with the head block for a saw-mill carriage, so that the lever is brought back for a repetition of the action by the inclined bar, and the log is set by the spring the moment the lever is relieved from the inclined bar. I also claim the combination of the cog wheel, ratchet wheel, drum and axle operated by the rack on the side of the carriage, with the dogs, springs, cords, weights, pole and bar for opening and shutting the water-gate, in the manner and for the purpose set forth."

40. For an improvement in Ladies' Bonnets; Thomas Hammond, New York city, N. Y., October 30.

Claim. "What I claim as my invention, and desire to secure by letters patent, is the method herein described of making and forming bonnet-frames of steel or iron wire, case hardened, and so constructing it as to be purely elastic, so that when bent up to the shape of the bonnet, or flattened out, it retains its tension; also in hanging the crown by a small hinge to the back of the elastic frame; all of which is described in the specification.