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5. For an improvement in the Truss for Hernia; John L. Heintzelman, city of Philadelphia, June 6.

“ Now all that I claim as my invention and improvement, and for which I ask letters patent, is the mode of placing the metal disk of the pad between the two sheets of caoutchouc, impressed and united as herein described and set forth, instead of placing it, as formerly, behind them, and dispensing with a covering of silk, leather, or any other substance whatsoever; thereby rendering the pad more elastic, more simple and durable, and perfectly easy to be cleansed without difficulty."

The caoutchouc pad is formed by pressing two sheets of caoutchouc, cut to a suitable size and shape, between heated metallic dies, by which the edges of the substance are united, and a proper form given to each side of the pad, the brass plate being enclosed between them, with a suitable tube projecting from the back of the pad, by which to attach it to the spring.

6. For a Pyrimidal Slove; Thomas M. Southwick, 'Troy, Rensselaer county, New York, June 6.

This is a sheet iron stove lined in the furnace part with soap stone. The only peculiarity which we see in it, is the forming of an air-light chamber at the lower part, from which tubes are to ascend up into the furnace. The object proposed is to heat the lower part of the stove by the descent of heated air into the chamber; it will be found, however, that more heat would be conducted down by solid rods than by the air tubes: the contrivance is, in fact, at variance with well known principles.

" The invention claimed and desired to be secured by letters patent, consists in the arrangement and adaptation of the several parts of the stove so as to produce the one described; but I particularly claim the tubes which convey the heated air downward into the close vessel below for warming the feet, and the construction of the furnace containing the coal.”

The description is very confused and indistinct, and the claim corresponds well with it.

7. For a Machine for Mixing Mortar and Hoisting Brick; Jesse Rinehart, Danville, Vermillion county, Illinois, June 6.

A horse power is to be used to turn a cylinder furnished with projecting pins, and revolving within a concave, into which the sand and lime are to fall from a bopper. As in the preceding patent the description is altogether defective. Nothing is said about the construction of the hoisting part; we are only told that “the mortar or brick is hoisted by the same power which makes the mortar, and much in the same way as other hoisting machines.” The drawing represents sereral things not alluded to in the specification.

The claim is to "the arrangement and adaptation of the several parts of the machine so as to produce the one before described, for mixing mortar and hoisting materials combined.

8. For a Machine for Hulling Clover Seed and Rice; Winslow Braley and Jeremiah Walker, Phillips, Somerset county, Maine, June 6.

This machine consists of a grater or rubbing board, worked up and down by means of a lever, the seed descending between this and a stationary grater. The graters are made of punched sheet iron, fixed upon wooden cylindrical segments crossing the rubbing boards. The machine is well described, but there is no claim made, although it certainly possesses sufficient

originality upon which to have founded one. Several parts referred to in the specification, have been omitted in the drawing; it is therefore defective, as it would not be a sufficient guide to a workman about to make the machine it represents.

9. For a Thrashing Machine; Hugh and Isaac W. Edgar, Wayne county, Ohio, June 6.

This is called a “ Portable Grain Thrasher,” but a horse power, which is certainly a separate and distinct machine, is also described in the same specification. The thrashing machine works by a cylinder and concave, and the general construction of the horse power is the same with many others.

"We claim, as our improvement, ihe peculiarly simple and substantial construction of the frame of the horse power and machine. The cheap and durable form of the master wheel; the proportionate shape of the bevil wheel, which gives it greater strength in proportion to the weight than the usual plan. The square pieces of iron with pins on the corners in ratchet joint

, which are easier made, more substantial, and work with less friction at a great angle than those used heretofore. The form of the bar and bar tooth cylinder, the teeth of which are not liable to fly out by the centrifugal force of the cylinder when in motion. Placing wood or fát bars between the bars in the concave, which leave greater space for the grain. The regulating the concave to or from the cylinder with keys, to suit the state of the grain. The ratchet wheel shaft passing through the machine, so that the tumbling shaft may be attached to either end to suit different situations. Placing half the gearing on the machine, which reduces the motion of the tumbling sbaft, and simplifies the horse power.”

If the patentee can sustain all the foregoing claims, together with an exclusive right to his two machines, he will do more than we believe he can accomplish.

10. For a Cooking Stove; Elijah Skinner, Sandwich, Strafford county, New Hampshire, June 12.

This stove is to be set in a common open fireplace, and differs so little in its general arrangements from some others, as not to require or to admit of special description. The claim is to the particular arrangement and effect of the flues, funnels, damper and oven, and the appendages for letting off the steam; and the application of the whole to the common open fireplace, as before described.”

11. For an improvement in the Common Fireplace; Ira A. Bean and Elijah Skinner, Sandwich, Stratford county, New Hampshire,

June 12.

A box is to be formed across the fireplace somewhat like a hollow iron back-log; below this box or furnace there is to be an air chamber, and a plate is to rise vertically near its back edge, so as, with the chimney back, to form a five for the escape of smoke. In the top plate of the box there are openings for cooking utensils ; there is an opening also for admitting fuel, and tobes to let heated air into the room, which, however, will never produce this effect, as the draught will be the other way. The claim is to " the construction of the box in the hearth, and the arrangement and application of the same, with the flues, funnels and false back, to common open fireplaces; the object of which is to save room and fuel, furnish a cheap and Vol. XVII.-No. 1. -JANUARY, 1836.

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convenient apparatus for cooking, and at the same time avoid the impure air occasioned by close stoves, and ihe steam from cooking stoves."

The whole of the above named objects will not be attained by means of this contrivance; we do not think that there will be any special convenience in its use, and it certainly will not be economical when intended for heating in the place of a well constructed close stove.

12. For a Thrashing Machine; Thomas Rucker, Jr. of Murphreysborough, Rutherford county, Tennessee, assignee of Pendleton Check, of the same county, June 12.

In this machine there are two revolving cylinders, one placed over the other; the upper one is furnished with knives or cutters, acting against an opposing fixed cutting edge, and these together operate in the manner of shears. The grained ends of the sheaves are fed to this cutting apparatus, and the pieces cut off fall between a thrashing cylinder and a concave, grooved from end to end, in the form of saw teeth. by which the grain is thrashed out. The clain is to “ the manner of separating the heads of wheat or other grain from the straw, previous to thrashing it by the combination of machinery herein specified and described.” It is said that in this instrument “ the wheat is thrashed out more completely, and with far less labour than in those machines where the whole sheaf is operated on.”

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13. For a Plat-form Balance ; Alexander Bliss, Benson, Rutland county, Vermont, June 12.

" What I claim as my own invention, and not previously known in the above described machine is,

First, The arrangement of the levers, by which they form parallel lines and right angles, in the construction of the machine.

Second, The application of crank suspensions attached to the axle. Third, The described swing and its crank suspensions.

Fourth, The employment of the swings in front and rear of the machine described in the specification, upon which the short arms of the upper levers rest.”

Those acquainted with the platform balance will see from the foregoing, that there is nothing essentially differing from it in the action or construction of the machine proposed by this patentee. We are not aware that any advantage can result from arranging the levers all at right angles, and think that in this and some other points the change is in form rather than in substance,

14. For an improvement in Bridges; George Law, Easton, Northampton county, Pennsylvania, June 12.

The object proposed to be attained by the patentee is without lessening their strength, to give increased height to wooden bridges, thereby admitting of the passing of high loads, and of locomotives without lowering their chimneys. The framing of the bridge is to be the same as that now most commonly adopted, namely, double posts passing from one chord to the other with diagonal braces between them, thus forming a truss frame. The patentee says, "what I claim as my improvement and invention in the above described mode of construction, is limited to the additional stories, or tiers, of truss frames above the first or lower-most one, (which one has been used before.) I do not claim the principle of sloping the braces at right angle,

Ror the use of the arch, but simply the repetition or additional combination attained by adding tier upon tier as above described.”

There certainly is but little, if any, invention in the foregoing plan; and, in most cases, the increasing the height of a bridge is objectionable from its greater exposure to injury by wind; independently of this consideration, we do not apprehend that any builder would find it difficult to increase the height of such structures without the fear of weakening them.

15. For a Cheese Press; David Phelps, Bangor, Penobscot county, Maine, June 12.

A windlass crosses the frame of the press, near to its bottom, the ends of the shaft passing through the cheeks so as to draw upon ropes, which are to communicate the pressure; a rope from each of these projecting ends is attached above to a bent, or progressive, lever, working upon suitable fulcra, and bearing at their inner ends against a follower, which they force up; they have friction rollers on their ends to enable them to operate freely. There is no claim made, although the patentee says that it has advantages over all others in use, for reasons, which may be seen at a single view."

This may be the case, but we do not think so, although we have no doubt that it will answer the purpose intended in all its parts; but in all its parts

it is not new.

16. For an improvement in Fireplaces for Grates to burn anthracite; Joseph Snyder, Philadelphia county, Pennsylvania, June 12.

The greater part of this fireplace is proposed to be made of cast-iron; the bottom of it is formed of two parallel plates, two or three inches apart, and constituting a part of a circulating flue. This may stand upon feet, raising it a little from the ordinary hearth, and on it rests the back and jambs, the back also being formed of double plates, connecting with those at the bottom. The grate is situated as is usual in open fireplaces, and above it are double top plates also forming a flue between them. Hollow columns at the corner of this fireplace, in front, connect the hollow hearth with this hollow top, the back end of which passes into the chimney, in the man. ner of a Franklin stove; there is a damper situated on the lower plate of the upper base, which being opened allows of a direct draught into the chimney, but when closed, causes it to circulate around the whole structure. The grate is lined in the usual way, and supposing the damper to be closed, the draught is over the sloping back into the back flue, then downwards between the two back plates, then forward in the hollow hearth, and upward through the columns into the cap flue, and back into the chimney. The claim is to "the principle of diffusing the heat of an open fireplace or grate to the hearth and parts situated below the fire, by a descending and ascending flue, or flues, and double hearth, as set forth and described.”

17. For an improvement in Sloves; John C. Parry, Pittsburgh, Pennsylvania, June 12.

Although many patents are taken for triding things, the one before us may be considered as standing alone in its own littlenes. The whole thing proposed is to cover the rods used for connecting the tops and bottoms of Franklin, ten plate, and other stoves, by half columns of cast iron.

18. For a Saw Set; Herrick Aiken, Dracut, Middlesex county, Massachusetts, June 12.

The description of the saw set is very imperfect, or the instrument itself is strikingly so. There is to be a small piece of steel with a rounding face set in an iron bed, and upon this the setting is to be effected. Two horns, or projecting pieces on the bed, are employed to hold the said blade in its place, and there is to be a regulating guage, which in the drawing is represented as having teeth on it like those of a saw, and we are told that “the set of the teeth is performed by a hammer, or hammer and punch. The claim is to the foregoing parts." We know something about saws, saw sets, and saw setting, but should be at a loss, with all the helps before us, in attempting to construct and use the foregoing instrument.

19. For Splitting and Paring Leather; Herrick Aiken, Dracut, Middlesex county, Massachusetts, June 12.

This machine is for cutting or skiving leather after it has been cut in strips or pieces to the required length and width. Like the foregoing, it is but imperfectly described, and could not, therefore, be carried into effect withoui the aid of invention. A cutting knife is to enter horizontally along a cast iron frame, and what is called a revolving regulator, which we are told " is an inclined, hollow semicircle,” is placed above the knife, extending between two upright studs, to which, we suppose, it is attached by gudgeons, placed eccentrically, so that when turned down over the edge of the knife, its distance therefrom may be regulated by its eccentricity, and thus serves as a guage for different thicknesses. There are some other parts for which we could suppose a use, and a mode of fixing, but this is rather a departure from our general design. Very simple instruments have been long in use for the same purpose, and although this is called an improvement, the term must be taken in its technical acception only, meaning that it is not precisely like those which have preceded it.

The claim made, is to “the arrangement and adaptation of the several parts of the machine so as to produce the one before described, and particularly the method of confining the knife, and the construction of the regulator.” The former part of the claim may be tacked on to any specification; the latter portion is to things not properly described.

20. For an improvement in Pumps and Fire Engines; Henry Gates, Northampton, Hampshire county, Massachusetts, June 12.

The body of this pump is to be a short cylinder or drum, its axis standing horizontally, and truncated or cut off on its upper side so as to reduce it to about two-thirds of its cylindrical capacity; this upper part is covered, water tight, by a horizontal plate. An axis passes through the cylinder, and has attached to it two buckets or leaves, standing at right angles to each other, fitting the lower part of the cylinder and the two heads, water tight, to effect which they are made of durable metallic plates, screwed together with packing between them. Each of these leaves bas a valve opening outwards, or towards the upper plate of the chamber.

The upper part of the drum is divided into two chambers by a fixed partition descending from the upper plate to the upper side of the vibrating axis, against which it is to fit water tight. There are two valves opening upwards on the top plate, one on each side of the partition, and these are both covered by a conical delivery pipe, by which the water is to be con

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