List of American Patents which issued in the month of November, 1841, with Remarks and Exemplifications. By CHARLES M. KELLER, Examiner of Patents.

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42. For a Machine for crushing, corning, or graining, Gunpowder; Leonard S. Swett, Canton, Hartford county, Ct., November 16. The cake is first reduced by being passed between two fluted rollers that discharge it on to a screen, the meshes of which admit the particles sufficiently reduced to pass through, and conduct the rest to a second set of rollers that discharge it into a bolting reel, such as heretofore used.

Claim."I do not claim as my invention any several separate part of this machine, nor any particular shape, or size, in its construction, or any particular materials for its construction, any further than necessary to produce the desired effect. What I claim as my improvement, and for which alone I ask a patent, is the combination of the two sets of rollers, or cylinders, with said screen and said bolting reel, substantially as described."

43. For an improvement in the mode of opening Jaw Temples used in weaving; Erastus Williams and Daniel L. Huntington, Norwich, New London county, Ct., November 16.

In the jaw temples heretofore used, the jaw does not begin to close until the lay runs back, but the present improvement is for so arranging a latch as to cause the jaws to close before the lay begins to run back, and thus cause them to catch the selvage of the cloth near the reed, where it is distended to its full width. To the front of the lay there is affixed a spring latch, the back of which is borne up against a regulating screw; the front part of this latch is an inclined plane, which, on the beating up of the lay, strikes against an inclined projection on the moving jaw of the temple, and opens the jaw, but at the end of the beat, this projection falls in behind the spring latch, which permits the temple to close and gripe the cloth, and on the return of the lay, the projection on the movable jaw opens the spring latch, that immediately falls back by the tension of the spring, to be prepared for the next beat of the lay.

Claim." What we claim as our invention, and desire to secure by letters patent, is the method of opening jaw temples of looms, by means of the jointed latch, whereby the temples are permitted to close before the return of the lathe, for the purpose and in the manner substantially as described."

44. For an improvement in Friction Boxes for the journals of shafts; Martin C. Forrist, Foxborough, Norfolk county, Mass., November

16.

The box encloses three sets of rollers, which bear on the periphery of the journal and the inner periphery of the box. These rollers are

placed all around the journal, and act as truck rollers, and each set is one-third the length of the box. The two outside sets are connected together by small rods or rollers that pass freely through an aperture in each, and lie between, and separate, the rollers of the inner or middle set, which is also provided, in like manner, with small rods or rollers that pass through each one and project at each end sufficiently far to lie between and separate the rollers of the two outer sets.

Claim." I claim as my invention, arranging three sets of friction rollers about the journal of a shaft, or between the exterior of the journal and the interior of the box; and separating said rollers from each other by means of small rolls or rollers, having loose bearings in each of the two outer sets, the whole being constructed and operating substantially in the manner and for the purpose set forth."

45. For improvements in the Machine for Cutting Files; Levi Anderson, Kensington, Philadelphia county, Pa., November 16.

The chisel or cutter is on the end of an arm so connected with its shaft as to be free to turn, that the cutting edge of the cutter may adapt itself to the face of the file; and for the purpose of lifting this chisel, a band passes around the arm and is hooked to a "hand" or lever operated by the tappet wheel. The striker is forced down by springs, the tension of which is regulated by a bar that slides on top of them, and the motion of the bar corresponds with the form of the file.

Claim." What I claim, is the manner of regulating the force of the blow by means of the varying length of the springs which bear upon the hammers, such variation in length being produced by the sliding bar, under an arrangement of parts substantially the same with that herein described. I also claim the manner of lifting the chisels by means of a band attached to the hand and arm in combination with the striker, as set forth."

46. For improvements in Chucks for Turning Lathes; Sidney S. Hogle, Rushville, Ontario county, N. Y., November 16.

This, in common with the well-known universal chuck, has four sliding gripe pieces, which slide towards and from the centre of the plate in radial grooves, but instead of having one screw for each, there are two shafts crossing one another at right angles, there being a right and a left-handed screw on each, so that by the turning of each shaft, two gripes are made to approach towards or recede from each other, and thus the article to be chucked is griped by two instead of four operations. For the purpose of increasing the capacity of the chuck, separate griping pieces are put on to those above named, the latter fitting in a mortise in the former, and the two secured together by a

screw.

And with the view to adapt this chuck to very thin articles, a gaugeplate is provided, which has small rods projecting from the back of it and sliding in holes made for that purpose in the face plate of the chuck, so that by means of screws, the gauge-plate can be secured at any desired distance from the ends of the gripes.

Claim." What I claim, is the manner of combining a right and left-handed screw on the same shaft, with two sliding pieces, so as to bring them up, and to hold firmly against any article which is to be turned or otherwise operated upon in the lathe. I also claim the manner of combining with the sliding pieces, what I have denominated gripes, clips, or holding pieces, by means of which, a chuck of small size may be made to receive and hold an article of any dimensions within the capacity of the lathe to which the chuck is fitted. I claim, also, the manner of combining the gauge with the chuck, so as to adapt it to the convenient holding of articles of various thicknesses, substantially in the manner set forth."

47. For improvements in Machinery employed in the manufacture of Elliptical Springs; Wm. T. Richards, Poultney, Rutland county, Vt., November 16.

This is for forming by machinery the sockets required upon the ends of the upper springs to receive the lower springs, to form the joints.

Claim." What I claim, is the method described of forming the sockets of elliptical springs, by placing them upon the form and acting upon them by means of the shears for the purpose, and in the manner substantially as described. I also claim the clamp and gauge in combination with the form, for the purpose and in the manner described. And I further claim the shears in combination with the stocks, constructed and operating substantially as described, whereby the shears can be moved out of the way to enable the operator to get at the form."

The plate intended for a spring is secured to a bed, or form, by means of a clamp screw, and then shears are brought up from each side to trim the circular ends. The shears are attached to sliding stocks, one on each side of the form, and they are forced towards each other by two levers, operated by a treadle and toggle joint, and forced back by a weighted lever. The stocks that carry the shears work on journals below the line of the shears, so that they can be thrown back as well as slide lengthwise, to enable the workman to get at the form.

48. For a Machine for Mincing Blubber on board of ships engaged in the whale fishery; George Kilburn and John J. Kilburn, Fall River, Bristol county, Mass., November 16.

This machine consists of a wheel, one face of which is at right angles with the shaft, and the other beveled towards the periphery. To the straight face of this wheel, a curved knife is attached, which extends from a little beyond the periphery to about midway between. the periphery and the centre, and back of this knife the wheel is pierced with a beveled opening. The blubber is fed up to the cutter in a hopper, the bottom of which is a little below the range of the outer extremity of the knife, so that each slice that is cut, is not entirely severed from the mass.

Claim.

"We do not claim the knife on the wheel, or the opening

in the face of the wheel, nor the beveled edge of the wheel, as these have long since been known and used separately, as also the hopper; but what we do claim as our invention, and desire to secure by letters patent, is making the back face of the wheel beveled towards the periphery, and the beveled opening through which the blubber passes after it has been cut, in combination with the curved knife, and these thus combined in combination with the arrangement of the hopper, so that the part cut shall not be entirely severed from the mass in the hopper, substantially as specified.

49. For an improvement in the Washing Machine; Leonard Proctor, Fultonville, Glen county, N. Y., November 16.

The clothes to be washed are put between cloths attached to one end of a tub, and passing over a roller at the other, and between these two points they are operated upon by two rollers attached to a vibrating frame. These rollers are pressed together by springs, to make pressure on the clothes as they vibrate from end to end, and this is increased by causing the clothes to pass over one of the rollers and under the other.

Claim." What I claim, is the combination of the elastic springs with the rollers, double cloth and vibrating frame, as applied to the washing of clothes and other articles of domestic use, by means of which, (viz: the springs) the rollers are allowed to diverge and converge, so as to adapt themselves to the inequalities of the clothes. I do not claim the principle by which the double cloth is made to pass above one roller and beneath the other, that being no part of my invention."

50. For an improvement in Pumps for raising water; Joel Farnam, Stillwater, Saratoga county, N. Y., November 16.

Claim." What I claim, is combining the receiving and discharging cups with each other and with the cylinder, by means of a double chamber connected by trunks with the cylinder-that is to say, connecting the pump with a chamber around the outside of the cylinder, divided by partitions, said chamber communicating with the receiving and discharging cups, and also with the cylinder at either end by two tubes or trunks formed in arms or projections cast on the under side of the cylinder, one on the solid end of the cylinder on the right of the lower partition, and the other next the end of the cylinder, closed by the screw cup, on the left of the said partition, both being for the purpose of conducting the water to and from the cylinder through chambers, at the alternate backward and forward stroke of the piston, as described."

51. For improvements in the Furnace for Heating Buildings; Matthew Stewart, Jr., Philadelphia, Pa., November 16.

This furnace is provided with a central fire-chamber, and hot-air chambers surrounding it; and the first improvement claimed is for lining the interior with thin vertical plates, bent at right angles, form

ing spaces between said plates and the cylinder. Over the sides of these plates, towards the centre of the cylinder, are arranged a series of oblique ribs, for preventing the fuel from becoming packed in a solid mass against said plates, and also from burning out rapidly; and the plates are for preventing the same effect on the cylinder, columns of smoke and other gas being kept circulating between the plates and the other cylinder, which ascend to the chimney. The other improvement claimed is fully expressed in the claim.

Claim. "What I claim, is, first, the construction of the furnace with the lining of thin bent plates, for the purpose and in the manner set forth; secondly, the method of constructing and combining the water vessel with the hot-air chamber, by forming it with a projection and arranging it immediately over said chamber, with the tube for conducting off the smoke passing through the opening in its centre, as described."

52. For improvements in the Machine for Sawing Staves; Robert Stewart, Michigan City, Laporte county, Ia., November 25.

The patentee says-" My machine is of that kind in which the saw is made in the form of a hoop, which has teeth upon one of its edges." The improvements are fully expressed in the

Claim. "What I claim, is, first, the manner of driving the saw by means of the strap or band on its outside, in combination with the arrangement for driving it by means of the friction wheels in the interior, as set forth; and, secondly, the manner of keeping the hoop saw up to its bearing on the back plate, or flanch of the friction wheels, by placing the shafts of the said friction wheels out of parallelism with the axis of the saw as set forth."

53. For an improvement in the Machine for Ginning, Burring or Cleaning Wool and Cotion; Francis A. Calvert, Lowell, Mass., November 25.

The patentee says "The general principle upon which this machine operates is the same with that invented and applied to the same purpose by Wm. W. Calvert and Alanson Crane; and like it, the principal difference between it and some other machines which have been heretofore employed for burring and cleaning wool and cotton, consists in substituting for the knife or guard formerly used to arrest and separate the burs, seeds, and other foreign matter from the animal or vegetable fibres to be cleaned, an apparatus which shall operate upon such fibres in a manner analogous to that of picking out such foreign matter by hand. But instead of projecting edges of a revolving fluted or channeled roller to strike against the burs and other foreign matter, as in Calvert and Crane's machine, I employ what I denominate an angular toothed guard, which is made of sheet metal, which has openings or slots between each of its teeth, into which openings or slots, the pointed wires, or teeth, of a revolving cylinder, or roller, which I denominate the intersecting toothed cylinder, or roller, passes as said cylinder is made to revolve; the intention of this combined apparatus be