The fore and hind wheels are to have separate frames, but they are to be connected by jointed, transverse coupling rods, in order to enable them to turn easily, and to adapt themselves to the curvature of the road. The axles are each to be divided in the middle, to allow an independent motion to each wheel, the axles are also to be enclosed within a safety tube, running along it, which will support it in case of breaking. The transverse rods, and the divided axles, have so often come under our notice that we have nothing further to say about them. They however, form prominent parts of the present claim.

18. For Eradicating Corns; William Davis, Williamsburg, James City county, Virginia, September 9.

Diluted nitric acid is to be applied to the corns to soften them, and they are to be rubbed down with pummice stone; that is all. Nitric acid has often been applied to corns, and they have been rubbed down by files, or by emery sticks, made for the purpose; we apprehend, therefore, that those who have corns may still use the indicated means of cure.

19. For an improvement in the Coffee and Corn Mill; Elijah Morse, and Caleb Putnam, Knoxville, Tennessee, September 9.

Nominal improvements are so easily made that it requires no talent whatever to be the author of them, and such is that which forms the subject of the present patent. The mill in which the pretended improvement is made, is the common cast iron mill with a conical shell and nut, in its unaltered state, excepting only that the patentees "claim as their own invention, and not previously known in the above machine, that the furrows in their mill run straight through, and not spiral, as in all other mills." It does not require two grains of mechanical knowledge to enable a person to decide that this change deteriorates instead of improves the mill; nor is it necessary to have dipped deeply into the logic of Aristotle, or of Watts, to arrive at the conclusion that it requires one and one to make two, yet in the case before us we are to admit that the inventive genius of two individuals might be put into requisition to devise one set of straight furrows.

20. For a Bedstead for the Sick; Nathaniel Richardson, Boston, Massachusetts, September 9.

It would be a sheer waste of time to detain our readers with a particular description of this contrivance, which is intended only to elevate the upper or lower half of the frame and sacking bottom of a bedstead, by means of a windlass and cord. The mode of doing it is no improvement upon others, and the end obtained does not differ in the slightest degree from that often accomplished, and attainable by any mechanic in his own way. "The combination and arrangement of the parts" forms the stereotyped claim.

21. For a Saw Set; Lewis Barmore, Hanover, Chataque county, New York, September 9.

The principal part of the specification of this patent consists in the exact measurement of the respective parts, and other matters of no moment. The setting is to be effected by placing the teeth of the saw upon a small anvil, and striking with a hammer, the handle of which passes through a shaft turning on gudgeons in uprights, the hammer being raised by the revolution of a piece of wire, bent crank fashion. The saw is to be sustained upon

a rest, and the points of the teeth are to bear against a metallic roller. The claims are to "the application of the crank to the hammer handle; the rollers to guide the teeth of the saw across the anvil, and the rest, block, and gauge, and their advantages," which latter appear to us to be few in number, as there are many saw sets in the Patent office which we should prefer to this last improvement.

22. For Stamps for Post Offices; Benjamin Chambers, city of Washington, September 9.

These stamps are to have a fillet round the outer edge of the face, which fillet is cut, or left, on the solid metal. It surrounds, and is intended to protect, the letters which designate the office. The claim made is "the manner in which I construct the ledge, or projection on the outside circumference of the face of the block, being cut out in relief from the solid body of the cylindrical block."

We have seen such fillets, or ledges, cut out of solid blocks both of wood and metal, in use long before the obtaining of this patent.

23. For Supplying and Regulating the Draught of Air to Fire Places; Robert Mayo, city of Washington, September 9.

Pipes, or tubes, of tin, or other material, which may be from one and a half to three inches in diameter, are to lead from the lower part of a building, up the outer walls, their upper ends opening under the grate or fire place. Such pipes may be added to buildings already erected; but in the erection of new ones it is proposed to form these ascending air channels within the thickness of the walls, their lower ends opening to the external air, and their inner to the fire place. Valves to regulate the quantity of air admitted, may be constructed of any suitable form.

The claims made are "First. The arrangement, combination of parts, and adaptation of the air pipes, or tubes, to ascend the outer walls or chimneys of buildings, or apartments, and penetrate the same contiguous to fire places. Second. I claim the construction of air channels or flues in the masonry of chimneys, or the walls of buildings, to ascend from a lower stratum of atmosphere and terminate near to, or in, the fire places.'

With the exception of extending the tubes to the lower part of a building, it will not be pretended that there is any novelty in this contrivance, the practice of admitting air from without to feed fires, being old and common; but even the ascending tubes themselves are not new, they having been frequently recommended and applied to the supply of fires for the purpose of ventilating cellars, and other lower apartments; it may be said, however, in the present case, that this is not their object, that object being merely the supply of the fire; without inquiring into the validity of this allegation, it is proper to ask what are the advantages of these descending pipes, and we believe that this is a question which cannot be satisfactorily answered. The patentee says that we shall "thereby create a constant current through the tube, or pipe, of a strength proportionate to the height of the pipe, or the greater weight of the medium of atmosphere at the lower extremity, or inlet, than that at its upper extremity, or outlet; which takes place upon the same principle of pneumatic or atmospheric pressure, which forces water in a tube, or well, to rise to the height indicated by the known weight of the atmosphere: and this principle is equally applicable, of course, to the air channels, or flues, constructed in the masonry."

The foregoing may pass with the illiterate for good reasoning, but it is altogether false and unfounded. The pressure at the opening of the tube within the room will not be altered by the extra height of the atmosphere above the lower opening, the column within the tube being a perfect balance to this; the whole trouble and expense of the tubes may, therefore, be saved, together with the cost of a patent right to do that which is in itself altogether useless.

24. For a Saw Mill Gauge; William A. Needham, Brimfield, Hampden county, Massachusetts, September 9.

This appears to be a very imperfect affair, when compared with many other devices for setting or gauging saw logs. A bar of iron is to be bent twice at right angles, thus, its ends being attached by hinge joints to the head block; upon the top bar there is to be a

slide, which may be secured by screws, and which is to be graduated into inches and parts. The end of this bar towards the log has a piece attached to it, thus, which piece is to bear against the log, and to keep it upright. The claim is to "the arrangement of the parts described, to cause a log to be sawed into any required thickness marked upon the graduated edge of the slide.”

25. For a Cooking Stove; John Whiting, of Boston, and John Mears, of Dorchester, Norfolk county, Massachusetts, September 9.

The main, or only, novelty in this cooking stove, consists, like that of most others, in the particular arrangement of the respective parts, as devised by the patentees. The claim is to "the construction of such stoves, as aforesaid, and the several parts thereof, not separately, but in combination for the purposes aforesaid; and also the construction of stoves so that the hot air may pass first over, then down by the side of, and then under, the oven, and then between the oven, and the furnace, in manner aforesaid, and for purposes aforesaid. The construction of the oven and furnace may be somewhat varied, at discretion, and the side door for roasting may be dispensed with, if thought advisable; but the construction above mentioned is deemed most convenient, in all cases." We cannot attempt a description of the particular arrangement, which is well shown in the drawing, referred to throughout in the specification.

26. For a Coopers' Stock, Howel, and Croes; Melancthon Sutton, Penfield, Monroe county, New York, September 9.

In this invention, the work heretofore requiring the use of two instruments, is to be performed by one. A very particular description of the tool is furnished, and explained by reference to the drawings, which show the peculiar form given to the cutting iron. The claim is to "the peculiar construction of the edge and angles of the cutting instrument, by which it supersedes the necessity of à separate howeling iron, and performs the work in less time. The moulding of the faced edge of the stock face, to conform to the cutting angles of said instrument; and the sliding gauge, as described, and delineated in the drawing."

27. For a Washing Machine; James Lombard, Readfield, Kennebec county, Maine, September 9.

The trough of this machine is a concave semi-cylinder, closed at the ends,

and fluted along the semicircular part. The rubber, which is to act upon the clothes, is also a semi-cylinder, which passes into the trough, and is suspended by an axis at, or near, its centre. This rubber is either fluted, or covered with fluted rollers, passing from end to end on its curved surface. It is so hung, by means of a strap, or chain, as that it may recede from the trough, when too great a quantity of clothes may be between them, and also to admit of its continued pressure upon them. The rubber is to be made to vibrate by means of a handle. The claims are to "the form and application of the rubber, or interior cylinder. The mode of suspending and operating the rubber, and the application of the strap, or chain, whereby the pressure is regulated, and the rubber allowed to yield."

28. For an improvement in the Saw Mill; Linus Yale, Utica, Oneida county, New York, September 11.

Upon the head block there is to be a plate of cast-iron, about three feet in length, which slides between grooves, or ledges, on a cast-iron bed, that is fastened to the block. A bar of iron, which may be an inch and a half square, is to be placed upon the slide, along that edge of it which is farthest from the log; by means of pins and holes, properly constructed, it may be placed firmly upon the slide, with either of its sides uppermost, and these four sides are divided and notched to suit four different thicknesses of stuff, the notches serving for a setting pall to fall into, which is acted on by a lever, which lever, when raised by the hand, sets the log. A similar slide, and its appurtenances, are affixed to the tail block, but here it is rendered self-setting by an apparatus, not very clearly described, and for the study. of which we cannot afford much time. A particular construction of the dog is also described, but so obscurely that we know little, or nothing, about it, although it forms one of the matters claimed. Neither the use of the lever, nor of the slide containing the dog and bar, is claimed, but, "first. The dogs swinging upon a vertical shaft, as described. Second. The construction and use of the notched bar, as set forth. The construction and use of the pointed, or setting, arm, as set forth. Fourth. The manner in which I construct the inclined plane, as set forth. Fifth. The manner of casting the plates and slides together."

Third.

The third and fourth claims refer to the self-setting part; the fifth at least, it might have been better to have omitted.

29. For a Machine for Breaking and Cultivating Sward Ground; Guy Gray, Industry, Somerset county, Maine, September 18.

A square frame is made to contain a roller, like that used for rolling ground, and a tongue is attached to the frame to draw it by. The roller, as described, is four feet long, and is set with teeth in twelve rows, containing, alternately, five and six in a row; the teeth, which are pointed, are seven inches long, but curved so as not to project more than six inches from the roller. There are teeth, also, on the back rail of the frame, so set as to allow the roller to pass between them. The patentee says, that when this is "drawn over the closest sward land, it breaks it more thoroughly than any other machine known to him, so that the ground may be afterwards ploughed with less than half the strength of team otherwise required, whilst it is left in a much better state for cultivation."

There is not any claim made; the whole must, therefore, be considered as new, or the patent cannot be sustained.

30. For a Loom for Weaving the Cloth for Stocks; Conrad Kile, Erie, Erie county, Pennsylvania, September 18.

The frame, warp, and cloth beams, &c., are placed in the usual manner, the improvement consisting "in the form, or mode, of constructing them, and is grounded on the following requisite, to make the stock set closely to the neck, and accommodate itself to the shape, viz: that the selvage should be much longer than the centre of the cloth, so that, while the centre of the stock fits the neck closely, the selvage, both at top and bottom, is so loose as to yield easily to the motion of the chin, after the manner generally effected by inserting pieces of an angular shape around the top and bottom. This object of increasing the length of the selvage, I effect by means of the shape I give the beams above mentioned on their circumference, for, instead of their being straight from one end to the other, I form them concave, so proportioned that the girth of the centre of the beam is about one-third less than that of each end."

The particular arrangements necessary, or adopted, in completing the plan, are described at considerable length, and a claim is made to the concave shape given to all the beams, and to the reed; to the manner of making the lower semicircular bar of the reed; and the manner of joining the uprights of the reed, by means of arms, to the axis of the straining beam."

31. For a Tailors' Measuring Apparatus; John S. Rockafellow, Flemington, Huntingdon county, New Jersey, September 18.

The claim made is to "an improvement on D. Williams' patent, by the construction of a scale equal in length to the entire circumference of the human body, and having the tape of an entire length, and the movable slide and upright to secure a correct measurement for the cutting of garments."

32. For an improvement in Beds, Cots, and Hammocks; William I, and Alfred E. Lyman, Easthampton, Hampshire county, Massachusetts, September 18.

The specification of this patent is more sentimental in its commendatory, than clear in its descriptive, part. It seems, however, that conical, spiral springs of wire, are to be interposed between the rails of a bedstead, and a frame above it, over which a covering of cloth, leather, &c., is to be stretched. For cots, &c., the fixtures must be adapted to them. In warm weather, a sheet only, and, at other seasons, a covering adapted thereto, will, we are told, "render this bed a great comfort to the sick, the weary, and the aged, and a great exciter to 'nature's sweet restorer, balmy sleep.' By the action and reaction of the springs, support is afforded to the inequalities of the human frame in equal measures, so that muscular action is in a sense suspended, and a quiet repose given to the whole system."

The patentees "claim as their own invention and improvement, the application of metallic conical spiral springs, as a support in the fabrication of beds, cots, or hammocks, in the manner herein described."

How many patents for the application of spiral springs we have seen recorded, we cannot tell, but they are not few. We, however, recollect one from the same county with the foregoing, dated August 25th, 1831, and noticed at p. 128, vol. ix., which, uninviting as we thought it, appeared to offer more comfort than the one under consideration.