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ing the flue spaces, that the draught can pass either directly out, or duwn the back, under, up the front, and over the top of the oven, and between it and the bottom of the fire chamber. In the back fiue spaces there are two partitions, dividing that part of it which extends from the top plate of the stove to the top plate of the oven into three compartments, the two side ones being extensions of the back flue space, and the middle one the exit pipe from the flue between the oven and fire chamber, the latter being provided with a damper to permit the draught to pass directly out, or to carry it entirely around the oven.

Claim.-“What I claim is the manner of forming the space leading to the exit pipe, by means of the partition plates, for the purpose set forth, in combination with the enlarged flue space leading thereto;" (from the upper flue of the oven,) " by which arrangement, and that of the flues leading thereto, I secure an unobstructed draught into the exit pipe; and am enabled to direct the draught around the oven), in the manner herein fully made known.” 4. For an improvement in the Cooking Stove ; Thomas Bent, Cina

cinnati, Ohio: assigned to W. and R. P. Resor, of the same place, June 5.

In this stove there are two ovens, one occupying the space between the back of the fire chamber and the back of the stove, and the other the entire space below these. In other double oven stoves the draught passes between the two ovens, but in this it does not, this space being converted into a heated air chamber by a close partition at the back, so that the bottom of the upper, and the top of the under, ovens are heated by the hot air between them.

Claim.-“What I claim is the manner in which the flue spaces are arranged and governed, so as to convert that part which is usually employed as a flue space between the two, into a heated air space, by means of the permanent partition; the whole arrangement of the flies, and their combination with the other parts, being such as described."

5. For improvements in the Process of Tanning Leather; John Cox,

of Edinburgh, Great Britain, June 5.

This is for improvements in the method long known of applying the tanning liquor to the hides, or skins, by infiltration, or percolation, and consists in applying the liquor to the skins formed into bags suspended to supply pipes from a reservoir above, and the hides separated from each other by being contained in separate compartments, or stalls, or immersed in a vat of tanning.

Claim.-“I would have it understood that I do not claim the principle of tanning hides, or skins, by causing percolation of liquor by hydrostatic pressure through their pores and fibres, nor the sewing of hides and skins into bags, nor simply filling them with liquor when unconnected with a feeding cistern, and without causing additional hydrostatic pressure; but I do claim the peculiar methods of tanning

by hydrostatic pressure, as described. First, I claim tanning hides and skins by hydrostatic pressure, when formed into bags, when they are confined, or supported, or suspended, into continuous smooth sided narrow compartments, or stalls, as described. Secondly, I claim tanning by hydrostatic pressure when a hide, or skin, is formed into a bag, and immersed totally, or partially, into liquor, and either confined in a continuous smooth sided compartment, or allowed to expand, or swell, to its natural dimensions without confinement, or jammed against other hides and skins, as described.”

6. For an improvement in Cork Sole Boots; William S. McCauley,

Baltimore, Maryland, June 5.

Claim.—“What I claim as my invention, is the construction of the cork sole boot in the manner described, having a vand extending from the ball of the foot, where the welt terminates round the toe, which, together with the two in-soles, completely envelopes, and securely confines the cork sole, and they together form a firm basis to peg the out-sole to; the whole being constructed and arranged in the manner and for the purpose substantially as set forth."

7. For an improvement in the Butter Churn; Jason B. Schermer

horn, Deerfield, Oneida county, New York, June 5.

Claim.-—"I do not claim the general plan and principle of constructing churns with plungers worked either by hand, or by crank, motion, but what I do claim as my iuvention, and desire to secure by letters patent, is the mode of constructing dairy churns with two rakeformed plungers, with the teeth inter-raking, and with oppositely reciprocating motions, communicated to them by a cranked shaft, as set forth.”

8. For an improvement in the Smut Machine for Cleaning Grain;

James W. Webster, Luray, Page county, Virginia, June 5.

A cylinder with oblique curved beaters works in a horizontal cas. ing, and on the same shaft there is a fan, formed with oblique wings, to force a current of air through the meshes of a reticulated partition in the case, and between the fan and beaters the inclination of the former being the reverse of the latter, so that the current of air shall move in the reverse direction of the grain, and separate and carry off the impurities.

Claim.—“What I claim as my invention, is the combination of the cylinder of oblique curved beaters, the oblique wings, and reticulated partition, under an arrangement as aforesaid, for the purpose of cleaning grain as set forth.”

9. For an improvement in the method of Turning Wood Tupering;

Wyllys Avery, Salisbury, New York, June 5.

We have here a modification of that mode of turning in which the wood to be turned is passed through a hollow mandrel, to which are attached the cutters. In this machine the cutter, which gives the taper to the wood, slides in an aperture in the mandrel, and is caused to approach to, or recede from, the centre by a wedge attached to a plate, or collar, that slides on the mandrel; the said plate being embraced by a groove in an arm of a rock shast, the end of another arm on the same shaft being caused to rise and fall by an inclined guide on the carriage that feeds the machine.

Claim.-“What I claim is the mode of moving the cutter, causing it to recede from the centre of the hollow mandrel, to cut pieces of wood tapering, by the combination of the wedge, plate, arms, and rock shast, carriage and gauge rod, arranged and operated in the manner and for the purpose set forth, or in any other mode substantially the same, by which analogous results are produced.”



10. For a machine for making Mercurial Ointment ; James W. W.

Gordon, Baltimore, Maryland, June 5.

The material to be acted upon is placed in a vertical cylinder, in which works a series of knives that radiate from a hub attached to the lower end of a rod connected by a swivel joint to a sliding crosshead which receives its movement from a crank shaft. One side of the radial knives is flat and vertical, and the other has a double bevel, which bevel causes the whole to rotate as it moves up and down. Other kvives may be attached to the radial ones, and so arranged aş to project from each side, and at right angles to them.

Claim.-“What I claim as new, is the manner of forming and arranging my combined knives, each of them having a flat and a double beveled side, and being attached, in the manner set forth, to a piston rod, which is allowed to rotate ; said combined knives operating in a cylinder in the manuer and for the purpose set forth.”

11. For an improvement in the Thrashing Machine for Separating

Grain from Straw; Frederick A. Stuart, Catharine, Chemung county, New York, June 5.

Claim.--"What I clain is the described mode of separating grain from straw by subjecting it to the action of an inclined revolving cyl. inder of teeth within a smooth case made larger at one end than at the other, for the purpose of allowing the straw and grain to have a spiral movement downwards, and around the cylinder from the feeding board, the discharging end by which it is subjected to the action of the revolving tecth at every revolution of the cylinder, without the danger of the machine clogging, and without the use of any concave of the ordinary construction provided with teeth, said concave being constructed and arranged as before described.”


12. For a machine for Mixing Cements; William H. Smith, George

town, District of Columbia, June 10.

This machine consists of a cylinder closed at both ends, except an opening at one end for feeding in the materials to be acted upon, and

another at the opposite end for discharging the cement mixed; within this cylinder there is a rotating shaft with rubbers that extend from the shaft to the inner surface of the cylinder, against which they rub.

Claim.--"What I claim is the above described machine, consisting of a metallic cylinder, metallic axle, and metallic rubbers, all as above described. The cylinder to be either stationary, or revolving, the axle to revolve within it, and the rubbers to be spirally arranged, so as to rub against the cylinder when the machine is in motion.”

13. For an improvement in the Brick Press; Mark Twitchell, Gray,

Cumberland county, Maine, June 10.

Just under the hopper, which supplies the clay, there is a pulverizer in an inclined position, which consists of two parts, an upper and a lower, with their surfaces armed with teeth, in the form of saw teeth, and set so close together as to sist the clay as well as pulverize it by a reciprocate movement of the under one. The clay is discharged into a box which conducts it to the mould that moves back and forth with a carriage, by means of cams. The mould embraces the bed and piston, the latter sliding within it, and operated by a toggle, or elbow joint, one arm of which is in the form of a bent lever, with one of its arms connected with a crank by a connecting rod, (the other arm is termed in the claim the elbow.). The upper face of the mould has vent holes in it for the purpose of forcing back into the box the surplus clay; the bricks, after being pressed, are forced out of the mould by a small piston that moves at right angles with the main piston.

Claim.-"I claim the construction of the pulverizer, as set forth, the arrangement of the vent, to let off the surplus clay into the box, or hopper, facing the pistons with felt, gum elastic, or leather, and the combination of the small press for discharging the brick with the brick press, said small press being constructed and arranged as described. I also claim the mode of operating the press by means of the elbow and lever, operated by a connecting rod and crank, in combination with the several cams upon the wheel; said cams acting in unison with the lever and carriage-the whole being constructed and operating as set forth.”

14. For an improvement in the Furnace for Heating Buildings;

George Walker, New Haven, Connecticut, June 10.

Above the combustion chamber there is a drum, the lower part of which is in the form of the frustrum of an inverted cone, and the upper part a semi-spheroid, and at the junction of the upper and lower parts, inside, there is a disk which acts as a deflector, there being sufficient space around it for the passage of the smoke, and other products of combustion. Back of the combustion chamber and of this drum, there are two tiers of such drums, connected together by a pipe at the bottom, and all the tiers are connected together at top by means of a pipe, provided with a damper between the first and second tiers of drums, so that the draught shall pass from the first drum through Vol. IX, 3RD SERIES - No. 2.-FEBRUART, 1845.


the top pipe, down the first tier of drums, through the bottom pipe, up the second tier of drums, and through the top pipe into the chimney; the whole is to be surrounded by a hot air chamber of masonry.

Claim.-“I do not claim the parts of the above apparatus, but what I do claim as my invention, and desire to secure by letters patent, is the arrangement of the drums and combustion chamber, in the manner and for the purpose specified.”

15. For an improvement in the Cooking Slove; James White, Mil

ton, Northumberland county, Pennsylvania, June 10.

This is for an improvement on that kind of cooking stoves which have two ovens, one back of the fire chamber, and the other under the fire chamber and top oven, and consists of a shield plate, back of the plate which separates the fire chamber and back oven, to protect the articles in the oven from being over heated; this shield plate is attached to, and projects from, a grate parallel with, and a few inches above, the bottom plate of this oven.

Claim.—“I wish it to be understood that I do not claim the diving flue, or double oven; but what I claim as my invention, and desire to secure by letters patent, is the shield plate attached to the grate in the manner and for the purpose set forth, so that it can be removed therewith at pleasure.

16. For an improvement in the Water-Wheel; Daniel Weaver, Mc

Keansburg, Schuylkill county, Pennsylvania, June 10.

The wheel, which is horizontal, and provided with radial buckets, parallel with the shaft, for about two-thirds their length, from the bottom up, and then inclined at an angle of about fifty degrees, is surrounded with tangent shutes, equal in number to the number of buckets, so as to discharge the water on every bucket of the wheel at once. These shutes discharge the water only on the inclined part of the buckets.

Claim.—“What I claim as my invention, is the combination of the wheel constructed as aforesaid, with the circle of shutes in the case in which the wheel is placed, as set forth.”

17. For improvements in the Cooking Stove : Calvin Fulton, Roches

ter, Monroe county, New York, June 10.

In this stove there are three plates between the fire chamber and oven; they are designated in the claim by the letters a, b, and c; a, being the fire back; c, the oven plate; and b, the one between the two, thus forming two spaces; the one between band c, communicates with the flue space around the oven at the bottom only, no current of air being admitted to it; and the one between a and b, is opened for the circulation of air at the bottom and sides, to prevent the fire back from being over heated. The plate a, constitutes only the vertical part of the fire back, and at bottom it is connected with a curved plate d, which forms the lower and curved part of the fire back, the two being connected together by catches projecting from plate d, that

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