the stove into two distinct and parallel flues, by means of the horizontal partition plate, the upper flue communicating directly with the smokepipe, and the lower connected with the fire-box by openings governed by dampers; the whole being constructed and operating as herein described

and represented. - WILLIAM B. TREADWELL, No. 4805.

Having thus fully described the nature of my improvement in the machine for shelling and cleaning corn, what I claim therein as new, and desire to secure by letters patent, is the employment, in the manner set forth, of the guards of leather or other flexible material, for the purpose of preventing the escape of the corn with the cobs, and the choking of the machine by the insinuation of chaff and dirt into the moving parts thereof. JAS. MURRAY, Millirright.

No. 4806.

Having thus fully described my improvement, I wish it to be under. stood that I do not claim a revolving tube armed with teeth on the inside for shelling corn, as that has before been done; but what I do claim as my onvention, and desire to secure by letters patent, is the revolving spring arms, having segments of screws on their ends for drawing in the cobs through, and teeth for shelling the corn from the cob, in the manner described, and in combination therewith the jaws for holding the ear of corn to prevent its turning while being shelled, as described.

- J. W. GORDON.

No. 4807.

What I claim as my invention, and desire to secure by letters patent, is the manner of constructing the glass isolaters with shoulders and cylindrical recesses, in the manner and for the purpose above described, in combination with the frame and rod, constructed as above set forth. RENE L’ANGAIS.

No. 4808.

What Islaim as my invention, and desire to secure by letters patent, is o of the lamp with the surrounding suñuel-shaped glass case, in combination with the open reservoir or basin filled with biofany o: and the ..". which is inserted from above, with the cone, for. êuse and urpose to de troy bee-indths and other night flying inset forth in the specification and represented in the drawings. -- -, -, -o- "S. C. WILT.

No. 1809.

What I claim as my invention, and desire to secure by letters patent, is o - my o ëthe , intersecting o eWated a e centré'of the wheels, in combination

with a straight hole in one and a tapering pin in the other, for the use and purpose as described in the specification and illustrated by the drawings. ISAAC SLACK.

- , so o What I claim as my invention, and desire to secure by letters patent, is arranging the two ropes to wind on the drums or windlasses in opposite directions, when this is combined with one of the drums made to clutch and unclutch for the purpose of regulating the length of the ropes to suit the depth to which the buckets, &c., are to descend, substantially as de

scribed." ---, ... . . . * HARVEY W. SABIN. No. 4811.

What we claim, and desire to secure by letters patent, is the damper, &c., connected with the openings or passa essor a draught of air to the fire and that which leads to the o as by one operation to close

the whole, or in part the one, and in corresponding proportion o: the other, in o with the inside botton plate and hot-air fiber and inside top plate therewith connected preventing condensation of steam and for preventing explosion; all. oves ed and o *CHAS. H. ROGERS.* SAMUEL H. HANCOX.

, - -a.

Having thus fully set forth the nature of my improvement, what I claim, and desire to be secured by letters, patent, is the employment of . eels with chilled cast-iron flanches in combination with an engine having six or eight driving wheels, with axles, parallel to each other, and accommodating itself to curves and turnouts, by way of the devices or modesherein described for that purpose, and having the power applied to all the axles by connecting rods and cranks.

o ROSS WINANS.

No. 4813.

The utility of toughening the hulls of the grain in some way previous to grinding, and also the difficulty of effecting this desideratum uniformly, is well known to practical millers. When grain is ground in too dry a state, the hull is so tender and brittle that a portion of it is pulverized and passes through the bolt with the flour, disfiguring its appearance, and greatly reducing its merchantable value. "What we claim as our invention, and desire to secure by letters patent, is the method or process of toughening the hulls of wheat and other grains preparatory to grinding, by the application of steam, substantially in the manner and for the purpose as herein set forth." This the 15th day of June, A.D. 1846. - . . . "J. W. HOWLET. - - F. M. WALK R.

No. 4814.

It is not intended to claim any of the parts employed for these purposes, as all are in common use in various ways; but what I do claim as new, and desire to secure by letters patent of the United States, is the application of the two-edged knife 2, constructed and fixed to direct and act in conjunction with the vibrating knife 33, and gauge guides k, k, adapted to the form of the brush, when employed for the purpose of trimming the faces of brushes; the whole arranged, constructed, applied, and combined substantially as herein set forth and shown.

In testimony whereof, I have hereunto set my hand in the city of New York, this twenty-fourth day of June, one thousand eight hundred and

forty-six. - BENJAMIN BABBITT. No. 4815.

What we claim as our invention, and desire to secure by letters patent in the within described machine, is the operation of the teeth in the cylinder N, for the purpose of removing the straw from the drum—each row by its own gravity sliding in the grooves, project the teeth far enough to catch the straw, which, by its revolution, is brought up over the cylinder, when they return by their gravity, and the straw is thrown from the ma

chine. - CLINTON FOSTER. LEWI JONES.

No. 4816.

What we claim as our invention, and desire to secure by letters patent, is the combination of the drops with the tumblers, drop-levers, and slides, substantially in the manner and for the purpose herein set forth. J. D. JACKSON. ALFRED JUDSON.

No. 4817. What I claim as my invention, and desire to secure by letters patent, is, first, the cleaner, when placed in the hopper and forward of the saw, in combination with the gin saws and ribs, substantially as described, whereby the pods of cotton are loosened and the trash cleaned out, and the unginned pods that have been acted upon by the saws are carried back to the cleaner again to be acted upon by the teeth thereof, as described. Second, making the upper and outer surface of the ribs between the saws with a series of teeth, substantially as described, for the purpose of resisting the upward movement of the pods, and causing them to turn as they are carried up, as described. Third, attaching the ribs so as to vibrate at top, on a hinged joint, when this is combined with the spring connexion at bottom, substantially as described, whereby they receive a tremulous or vibratory motion to carry the pods towards and from the saws, as described. Fourth, the series of permanent brushes below the rotating brushes,

when combined with the rotating brushes and saws, substantially as described, for brushing the fibres, and more effectually removing the motes and other impurities therefrom, as described; and in combination with this, I further claim the grate and discharge passage for the motes and other impurities below the permanent brushes, substantially as described. And, finally, I claim, in combination with the rotating brushes, the spiral or oblique fan blowers at each end, substantially as described, for the purpose of introducing within the brushes currents of air to discharge the fibres from the brushes, and to carry out the motes and other impurities,

as described. w PETER WON SCHMIDT.

No. 4818.

What I claim as my invention, and desire to secure by letters patent, is the method herein described of forming the connexion between the windlass and the ends of the progressive levers by passing the chains or ropes, by which they are operated, around the rollers that run on the two rails, the treads of the rollers and the pulleys around which the chains or ropes pass being of equal diameters, to prevent slipping or bighting; all sub

stantially as herein described. - NICHOLAS J. LAMPMAN. No. 4819.

What I claim as my invention, and desire to secure by letters patent, is the application of the new and improved feeding hands, herein described, to saw-mills, acting laterally by a bight on the wheel, and insuring greater Aprecision and regularity in giving feed to the saw. NATHAN COMPTON.

No. 4820.

What I claim as my invention, and desire to secure by letters patent, is making the pistons of steam engines cylindrical, and of sufficient length to work through a stuffing-box around it, at the open end of the steam cylinder, substantially in the manner and for the purpose specified, in combination with the jointing of the connecting rod to the bottom thereof, for the purpose of saving the room occupied by the piston rod, the piston being guided by the stuffing-box at the end of the cylinder, and preventing the upper edge of the piston from cutting the cylinder, as would be the case with a shorter piston, as described. NATHAN N. BARLOW.

* No. 4821.

What I claim as my invention, and desire to secure by letters patent, is the before-described machine for polishing and finishing cloth; that is to say, I claim the combination of the emery cylinder L, regulating cylinder N, moistening cylinder B, and cylinder brush Y, and rollers k, n, o, p, q, r, with their vibrating bars b, b”, and screws m and mo for pressing the cloth against the above-named cylinder and brush; likewise the waterbox, as constructed, with a cloth moistened between its lower edges, and screws for pressing one side of the box towards the other, in combination

with the moistening cylinder covered with cloth. - - - JOSIAH. C. CARLISLE. .

What I claim is the exclusive right of preparing cast steel by decarburating pig iron to the degree required to form steel, by mixing with the pig iron, run from a cupola or other furnace into a separate receptacle, malleable iron in the proportion necessary to form steel, and running the mixture of pig iron and malleable iron, while still fluid and in the state of cast steel, into moulds from the receptacle.

In witness whereof, I, the said Josiah Marshall Heath, have hereunto set my hand and seal this eighteenth day of February, one thousand

eight hundred and forty-six. J. M. HEATH, [L. s.]

No. 4823. Having thus fully described by improvements, what I claim as new, and desire to secure by letters patent, is connecting all the joints of a double cylinder force pump, substantially in the manner described, so as

to hold them firmly together by means of one key, as above specified. DAVID HINMAN.

No. 4824.

What I claim as my invention, and desire to secure by letters patent, is placing a filter in an enlargement or chamber of the stop-cock between the valve and delivery spout, when these are connected by screwing on each other, and provided with packing, so that the pressure of the column of water shall press the filter against it, and thus form a water-tight joint, all substantially as described, whereby the filterer can be removed or reversed for cleansing, and the stop can be used independent of the filter,

as described. WILLIAM READ. No. 4825.

What I claim as my invention, and desire to secure by letters patent, is the attaching to the pessaries a curved inflexible tube A A, as shown in

the drawings, and set forth in this specification. JOEL B. MERRIMAN.

No. 4826.

Having thus fully described the manner in which I construct and manage the respective parts of my boiler and surnace for the heating of tannin or other liquids, and shown the operation of the same, what I claim therein as new, and desire to secure by letters patent, is the manner of combining the boiler (which is to be kept full of liquid) with the respective