18. For a Press for Cotton, Hay. &c.; Ebenezer Macomber, and Laban S. Macomber, Gardiner, Kennebec county, Maine, August 15. This press is peculiar in the mode in which it is acted upon, which is by levers applied by hand to teeth on a vertical piston, or shaft, on the top of which is the follower. The main lever used for the purpose must correspond in length and in stoutness, to the power with which it is to act. Upon the bottom, or platform, of the press there are boxes of cast-iron which have ridges upon them serving as fulcra to sustain the lever; these fulcra are movable, so that the power applied'may vary with the resistance. The distance gained by raising the piston is retained by wedges which slide forward by the action of a weight, passing over a pulley. The whole appears to be skilfully arranged, and we have been informed that in packing cotton it has performed considerably more work with the same power than any of the presses known in the neighbourhood of the place where it was erected; an effect which appears to be due, principally, to the little friction to which it is subjected.

We do not give the claims, as they refer not only to the general arrangement, but also to certain particular parts which we cannot take time to describe.

19. For Machinery to facilitate Evaporation; John Goulding, of Boston, and Reuben Brackett, of Lynn, Massachusetts, August 15.

This patent is obtained for "machinery for facilitating the evaporation of solvents, or fluids, and in various water proof compositions or mixtures, from the cloth or other substance to which said mixtures or compositions may be applied, and also for condensing the same again, or converting them from an aeriform into a liquid state."

The cloth coated with a solution of India rubber is to be wound upon a roll in such a manner as to allow it to form a spiral with a space between each coil. The reel and the cloth so wound on it is then to be enclosed in a box, or case, of wood or of metal, fitting together so perfectly as to prevent the entrance or the escape of air. From the top of this case, or box, there is a tube leading to a condensing apparatus of any convenient form. Heated air, or steam, is to be admitted into the case, either through the axis of the reel, if made hollow for that purpose, or through any other convenient opening, the effect of which will be to evaporate the volatile solvent. The claim is to the accomplishing this object, and to the collecting of the solvents by the means described.

20. For a Stove for heating Tailors' and Hatters' Irons; John Lewis, Derby, New Haven county, Connecticut, August 17.

A cast-iron furnace is to be made to contain anthracite, and under this there is to be an ash pit. Around the furnace, or "chamber of combustion, are placed several linings of sheet-iron, about an inch apart, forming air-tight chambers enclosing columns of fixed air (?) to prevent the lateral escape of the heat." There is to be a cover to the stove, which is to be an "air-tight chamber formed by several linings of sheet-iron or tin, enclosing columns of fixed air, to prevent the escape of the heat into the room." The claim is to "the application of fixed air chambers around a stove for the purpose of heating tailors' and hatters' irons; at the same time preventing the heated air being trausmitted into the apartment in which the stove is placed in the manner before described.

By fixed air, we suppose is meant air fixed within the chambers. The

embracing a quadrant, or more, of its lower half. The segments stand at a sufficient distance at the upper edges, to feed the machine. The description is not full, and there is no claim.

8. For a Cooking Stove; Solomon Dixon, Richmond, Wayne county, Indiana, August 15.

This stove is intended for wood, or coal; we do not see any thing in it entitling it to special notice, although we do not know of any other in precisely the same shape, or having exactly similar shifting, or moving, parts. "The improvements which are new, and for which I claim a patent, are the slides, the valve, with the cuts, or openings, in the diagonal plate, the passage for the heat and smoke caused by the cuts, and in the vacuum below, in the semicircular box."

and

9. For a vertical Cutting and Press Machine for Books and Paper; Benjamin Morris, Oxford, Chenango county, New York, August

15.

The cutting part of this machine is very similar to that of those in general use, in which a long knife is brought down vertically to cut the edges of books, or paper. The following may give some idea of the points of novelty claimed by the patentee.

"I have thus shown the construction of my vertical cutting and press machine in all its principal parts, and, in so doing, have described many things which I do not claim as of my invention; but what I do claim is, first, the attaching the knife by which the cutting is to be effected, to a separate frame, as shown in the drawing, which separate frame, with the knife, may be removed from the sliding frame, and again affixed thereto by means of thumb screws and buttons, for the purpose of sharpening the knife, without altering the setting or adjustment thereof. I claim, secondly, the general combination and arrangement of the different parts of this machine, as described, for the purpose of moving the frame of the cutting knife, and also of the frame for pressing; not intending, however, by this claim, to confine myself to the precise arrangement which I have exhibited, but to vary this as I may think proper, whilst I attain the same end by means substantially similar.

10. For a Machine for Splitting Shoe Pegs; Mark Wilder, Peterborough, Hillsborough county, New Hampshire, August 15.

A vertical frame has, at its lower end, a cutting knife for cutting the pegs, which knife is attached to a vertical slide, that is operated upon by a toggle joint, worked by a bar, or pitman, in the usual way. The blocks, after having been pointed by a grooving tool, are placed upon a sliding bed below the knife, where they are secured upon a metallic disk adapted to receive them. The sliding bed is made to advance by the action of a feed rod, which receives its motion from that of the toggle joint, and slide. The grooved block must, of course, be adjusted to the knife, and must also be surrounded by a strap, to keep the rived parts together.

The claim is, to "the toggle joint, lever, and knife shaft, the revolving disk, and appendages, together with the palls by which the feeding is effected, the whole operating in combination for the purposes, and in the manner, herein set forth and described."

The claiming of the toggle joint, palls, &c., separately, is not a safe

course, as they are not the invention of the patentee; yet, by a fair construction of the foregoing, they are claimed individually, as well as in combination.

11. For an improvement in Hubbard's Rotary Pump; David M. Walker, Cavendish, Windsor county, Vermont, August 15.

This might as well have been called an improvement upon a dozen other rotary pumps, as upon Hubbard's. Like the rotary pumps which have preceded it, it is difficult to make, and of little worth after it is made, as its operation depends upon the fitting of revolving pieces of metal to the interior of a drum, or cylinder, in which they revolve. Had the patentee been acquainted with the history of rotary pumps, as they have been known for upwards of a century, he would not have placed this upon record.

12. For Making Potash; Elijah Williams, Harbour Creek, Erie county, Pennsylvania, August 15. (See specification.)

13. For Ships, constructed wholly of Iron; Charles Olcott, Medina, Medina county, Ohio, August 15.

The only thing proposed to be changed is the material of which ships are constructed, as no alteration is made in the exterior shape, or model, of vessels. The relative proportions of the hulls, masts, spars, and other parts of vessels, are to be the same, or nearly the same, in ships built on this plan, as before." In the claim, the patentee confines himself to the forms of the various individual parts, furnished with flanches, &c., for putting them together, "all exactly in the manner and of the materials above described."

The patentee states that the invention was made by him in the year 1815, although circumstances have caused him to delay the taking of a patent until the present time.

Steamboats, and various masted vessels, have, many years since, been made of iron. Masts for ships, also, have been constructed of the same material, and the question of adopting it in the building of sea vessels generally, has been a subject much discussed. Who first suggested the idea, we cannot tell, and it is likely that the thing is not known; but we are certain that it could be traced back beyond the year 1815. The mere building of ships of iron is not now, therefore, a legitimate subject for a patent, as the proposition is not new to the public. The exact construction, or form, of the individual parts, as described and claimed by Mr. Olcott, if new, is his; but this, without a claim to the system, will be of little value, and such a claim would, manifestly, be invalid.

14. For a Washing Machine; Calvin H. Farnum, Norwich, New London county, Connecticut, August 15.

A cylinder is to revolve within a box, in the manner of the common dash wheels; the periphery of this cylinder is to consist of slats set in the manner of the buckets of a water wheel, in order that they may cause the suds in the box to pass forcibly into the cylinder. The box is to be enclosed, to keep in the steam; the lid at the top is to be of zinc, brass, or copper, an the gudgeons, and other metallic parts, are also to be of one of these substances, instead of iron.

"The invention claimed, is the improvement made in the above described

machine, by the use of a metallic top and lid; and the confinement and ap. plication of the steam; and the use of zinc, copper, or brass, gudgeons and boxes, and the arrangement of the floats of the wheel."

The metallic covering is injurious, defeating, by its conducting power, the very object for which it is professedly adapted; well fitted and arranged coverings and doors of wood are to be preferred. The substitution of the metals named for gudgeons and boxes, to avoid the danger from oxide of iron, is a thing well known; the form of the floats may probably be advantageous.

15. For a Machine for Sawing Shingles; David B. Moore, Gilmanton, Strafford county, New Hampshire, August 15.

In this shingle machine, the sawing is to be effected by a circular saw. The bolt, or block, from which the shingles are to be sawed, is confined on a carriage by proper hold-fasts. A shifting motion is described, by which the thick and the thin ends of the shingle are alternated. Many of the parts are much like those used in other shingle machines, and the claims, therefore, are limited to the particular modes of construction devised and described by the patentee.

16. For a Machine for Making Bricks; George W. Gilbert, Pittsburgh, Allegheny county, Pennsylvania, August 15.

The machine here patented is accompanied by a drawing, sufficiently well executed, so far as it goes; and it might probably be found sufficient for its purpose, if the specification were such as to fulfil its share of the business of description; this, however, is altogether defective, containing little more than a mere catalogue of the respective parts. It ends with a claim to "the arrangement and adaptation of the several parts of the before described machine for making bricks, particularly the wheel of moulds, the pistons, guides, pin, and lever, and the spiral cam for moving the wheel of moulds."

The wheel of moulds, which is particularly claimed, is not new, and the individual things enumerated may be important as making parts of a combination, but, taken by themselves, they are trifling, and not fit subjects of a claim.

17. For Bricks for Fire Proof Roofs; James Parker, Gardiner, Kennebec county, Maine, August 15.

These bricks are rhomboidal at their ends, so that when their flat sides are placed horizontally, their edges will have the same inclination with the intended roof. This comprises all the information necessary respecting their shape. To form a roof they are to be laid on laths, or on smooth boards, as may be preferred, when they will present a smooth and even surface. The claim is to "the peculiar form of the bricks, and of the mould in which they are to be made; and the application of bricks to the purpose, in the manner described."

Without animadverting upon the claim, we will observe that the use of tiles is objectionable on account of their great weight, which renders it necessary to frame the roof, and to build the walls with corresponding strength. How it may be with the houses in Maine we know not, but in most parts of the union the roofs and walls would not sustain the load which it is here proposed to put upon them, and to enable them to do so would cost more than metal roofs, which are incontestibly superior in all respects to those of brick.

18. For a Press for Cotton, Hay. &c.; Ebenezer Macomber, and Laban S. Macomber, Gardiner, Kennebec county, Maine, August 15. This press is peculiar in the mode in which it is acted upon, which is by levers applied by hand to teeth on a vertical piston, or shaft, on the top of which is the follower. The main lever used for the purpose must correspond in length and in stoutness, to the power with which it is to act. Upon the bottom, or platform, of the press there are boxes of cast-iron which have ridges upon them serving as fulcra to sustain the lever; these fulcra are movable, so that the power applied'may vary with the resistance. The distance gained by raising the piston is retained by wedges which slide forward by the action of a weight, passing over a pulley. The whole appears to be skilfully arranged, and we have been informed that in packing cotton it has performed considerably more work with the same power than any of the presses known in the neighbourhood of the place where it was erected; an effect which appears to be due, principally, to the little friction to which it is subjected.

We do not give the claims, as they refer not only to the general arrangement, but also to certain particular parts which we cannot take time to describe.

19. For Machinery to facilitate Evaporation; John Goulding, of Boston, and Reuben Brackett, of Lynn, Massachusetts, August 15.

This patent is obtained for "machinery for facilitating the evaporation of solvents, or fluids, and in various water proof compositions or mixtures, from the cloth or other substance to which said mixtures or compositions may be applied, and also for condensing the same again, or converting them from an aeriform into a liquid state."

The cloth coated with a solution of India rubber is to be wound upon a roll in such a manner as to allow it to form a spiral with a space between each coil. The reel and the cloth so wound on it is then to be enclosed in a box, or case, of wood or of metal, fitting together so perfectly as to prevent the entrance or the escape of air. From the top of this case, or box, there is a tube leading to a condensing apparatus of any convenient form. Heated air, or steam, is to be admitted into the case, either through the axis of the reel, if made hollow for that purpose, or through any other convenient opening, the effect of which will be to evaporate the volatile solvent. The claim is to the accomplishing this object, and to the collecting of the solvents by the means described.

20. For a Stove for heating Tailors' and Hatters' Irons; John Lewis, Derby, New Haven county, Connecticut, August 17.

A cast-iron furnace is to be made to contain anthracite, and under this there is to be an ash pit. Around the furnace, or "chamber of combustion, are placed several linings of sheet-iron, about an inch apart, forming air-tight chambers enclosing columns of fixed air (?) to prevent the lateral escape of the heat." There is to be a cover to the stove, which is to be an "air-tight chamber formed by several linings of sheet-iron or tin, enclosing columns of fixed air, to prevent the escape of the heat into the room." The claim is to "the application of fixed air chambers around a stove for the purpose of heating tailors' and hatters' irons; at the same time preventing the heated air being trausmitted into the apartment in which the stove is placed in the manner before described.

By fixed air, we suppose is meant air fixed within the chambers. The