2. For an Improvement in Machines for Sharpening Instruments; W. Z. & J. W. Chapman, Philadelphia, Pennsylvania, November 7.

The patentees say,-"The nature of our invention consists in a new combination and arrangement of known mechanical devices, whereby a rectangular grinding block, having a plain or fluted surface, is caused to move backwards or forwards under an adjustive turning holder, in which the various articles to be ground are held upon the face of the said block with ease and accuracy; also in securing over the ends of the grindstone adjustable bent metallic guards, to keep the articles being ground from slipping over the ends of the stone, and prevent the oil or water from flying off by its momentum at the time the motion of the stone is changed, and likewise to keep the oil or water supplied in sufficient quantity, and evenly spread over the surface of the stone, by means of the sponge or other absorptive substance secured upon their inner ends; and in combining with the reciprocating stone a flat revolving stone, which has likewise a turning adjustive rest connected with it."

Claim.-"What we claim as our invention, is the combination and arrangement of the adjustive turning holder with the grindstone, by means of which the apparatus is adapted to the accurate grinding of all manner of edged instruments. We also claim the combination of the vibrating clamp and turning holder with the adjustive sliding head, in the manner and for the purpose set forth. We also claim the combination of the grinding block with the guards, having sponges to be saturated with water or oil secured to their under ends, substantially in the manner and for the purpose set forth.”

3. For an Improvement in the Composition of Slate Pencils; Lewis J. Cohen, City of New York, November 7.

Claim. "What I claim as my invention, is the mixing or combining, in certain proportions, the materials of alumina, (in any of its forms,) with French chalk, or with soap stone, in combination with water, for making of a clay er mass for making white slate pencils, and the process of making the same, as set forth."

4. For an Improvement in Suspender and Shoulder Braces; H. Day and F. D. Hayward, City of New York, November 7; (ante-dated May 7.) The patentees say,-"The nature of our invention consists in giving the required degree of elasticity to suspenders, shoulder braces, and other similar articles, by the use of an elastic ring, to which is attached the buckle and button leathers by means of a loop, which will slide along the ring nearest to the point of draught, whereby we are enabled to have an elastic spring in any required direction, with equal advantage in each."

Claim. What we claim as our invention, is the forming and rendering elastic suspenders, shoulder braces, riding belts, and other similar articles, by the use, in combination therewith, of the elastic rings, for the purpose of giving spring and draught, substantially as set forth."

5. For an Improvement in Extension Tables; George Pratt, Boston, Suffolk county, Massachusetts, November 7.

Claim. "What I claim as my invention, is the combination of two or more sets of parallel bars, the machinery for extending and contracting the slide bars thereof, or moving them outwards and inwards, and the latching or unlatching contrivances, substantially as set forth. I also claim the said latching and unlatching contrivances, as constructed and applied to their slide bars, and operating (when they are moved by mechanism substantially as set forth) to connect or disconnect them, in manner as set forth. I also claim the manner of adapting the crank of the pinion shaft to said shaft, so that said crank may be moved or drawn outwards, and forced inwards, and turned upwards into a socket, and be made to clutch or engage with, and be disengaged from, the shaft, as occasion may require."

6. For an Improvement in Machinery for Stamping and Cutting Crackers; Cyrus Baldwin;-assigned to J. & E. Baldwin, Goffstown, Hillsboro' county, New Hampshire, November 7.

Claim. "I claim the combination of an air-tight cylinder and piston with each of the cutters, so as to operate in the manner set forth, and, by means of suction or the pressure of the atmosphere, raise the cracker or biscuit out of the dough or scraps, and prevent it from dropping out of the cutter while the latter is being elevated, as set forth; meaning to claim, in connexion with each cutter, an apparatus to create atmospheric pressure on the biscuit or cracker, substantially as set forth. I also claim the combination of the series of cutters or cutting mechanism and the two endless aprons, as made to operate together substantially as set forth. I also claim the revolvable flour duster, as combined with the endless apron, and used substantially as set forth."

7. For an Improvement in Filling Barrels with Flour; B. Bowman and A. Kauffman, Orrstown, Franklin county, Pennsylvania, November 7. Claim. "What we claim as our invention, is a new and useful method of filling flour into barrels in a mill, and weighing the flour and barrel together by one process, by means of a movable trough suspended on axle points near the centre of its sides, giving a preponderance to that division of it that is farthest from the barrel, and a pair of platform scales fixed below the light end of the trough, upon one end of which scales the empty barrel is placed to receive the flour from the trough, and on the other end the weights are placed, with the end of a lever mortised on it also, which, rising with that end of the scales when the barrel has reached its weight, unloops or unhooks a rod or wire from a pin in the frame-work above, that stayed at rest an inclination towards the barrel while it was filling, and thus permits the trough, by its unequal balance, to reverse its inclination, and convey the surplus flour into a chest on the opposite side to receive it."

8. For an Improvement in the Manufacture of Elastic Cloth; Richard Solis, City of New York, November 7.

Claim. "What I claim as my invention, is the mode of preparing the

cloth for the rubber, by stretching it in the manner set forth; and also the placing the rubber on the cloth obliquely, as set forth."

9. For an Improvement in Side Hill Ploughs; Hayward Cox, Peach Bottom P. O., Grayson county, Virginia, November 7.

The patentee says, "This improvement consists in securing a double mould board plough to the forward and back part of the land bar, at its lower part, and to an inclined rod extending from near the point of the land bar to the beam, at its upper forward part, in such a manner that the back and upper parts of said plough can be thrown on either side and secured there, in order to form a right or left hand plough, to throw the furrow either way, or can be secured immediately below the beam, to form a cultivator plough."

Claim, "What I claim as my invention, is the employment of a horizontal plate, perforated with an opening made in the form of the letter E, and fixed to the head of the standard, in combination with the perforated triangular plate and curved dog or lever, and inclined rod, on which the double mould board and land side turns, by which the plough is alternately changed from a right to a left hand plough, for ploughing on the sides of hills, and also for converting it into a cultivator, for ploughing between potatoes, corn, &c., as set forth."

10. For an Improvement in the Duck Foot Propeller; George Seibert, Hagerstown, Washington county, Maryland, November 7.

Claim. "What I claim as my invention, is the opening and closing of the wings of a propeller, by means of the combination of a sliding rod furnished with racks, or with the reciprocating bar, and also with arms having pinion segments, and being connected through the arms with the wings of a propeller when not required to be reversed, as set forth. I also claim, in combination with the reciprocating bar to which are attached springs, the projections on the wings of a propeller, when said springs are employed to deaden the shock which would otherwise be felt on using said wings, in the manner set forth; not claiming the general plan of using springs to arrest motion or prevent shocks. I also claim, in combination, the reciprocating bar, springs, projections, wings, arms, toothed segments, sliding rod, projections, and slot, constructed and acting substantially as set forth."

11. For an Improvement in Tubes for Raising Lamp Wicks; R. C. Overton, City of New York, November 7.

Claim. "What I claim as my invention, is the manner of constructing the wick tubes so as to raise and lower the wicks conveniently, the same consisting of the concentric tubes, the slot in the outer tube, and the pin attached to the inner tube, working through the slot."

12. For an Improvement in the Screw Jack; F. Ellis and B. S. Buckley, Roxbury, Norfolk county, Massachusetts, November 14.

Claim. "We claim, in combination with the two ratchet wheels and

lever apparatus for rotating them and their shaft, the two sets of screw mechanism extending from the shaft on which they are placed, the whole being constructed and made to operate substantially as set forth; not meaning to claim a simple duplication of a screw jack and lever apparatus, but meaning to claim the combination of the two jacks, or the double jack with but one lever apparatus, as set forth. We also claim the particular manner in which we construct the key lever, the frame, and dogged piece, so as to operate together: that is to say, the said key lever being made with a notch, and the said frame being made with a hole through its end piece, to receive said lever, and allow it and the dog piece to operate, and the other parts being constructed and applied together as set forth."

13. For an Improvement in Odometers; William Oldroyd, Mount Vernon, Knox county, Ohio, November 14.

Claim. "What I claim as my invention, is the combination of the circular inclined plane, attached to the hub of a carriage wheel, with the piston, click, and spring, for turning the cog wheels, pinions, and index, in the manner and for the purpose set forth.'

14. For an Improvement in the Manufacture of Buckwheat Size; William A. Comstock, Providence, Rhode Island, November 14.

Claim. "What I claim as my invention, is the making of sizing for yarns from buckwheat meal, substantially in the manner or by the process set forth, the same enabling me, at about one-third the usual expense of preparing wheat flour size, to produce a much better and more substantial size, one more especially adapted for fine yarns or difficult weaving than any heretofore in use."

15. For an Improvement in Mills for Breaking and Grinding; William Beal, Jr., Lowell, Middlesex county, Massachusetts, November 14. Claim. "What I claim as my invention, is the combined and simultaneous action of the teeth of the small cylinder, having a slow motion, with a series of stationary teeth, and with the teeth of the large cylinder, running at a high speed, substantially as set forth."

16. For an Improvement in Furnaces for Steam Boilers, &c.; F. X. Wurm, Vienna, Austria, November 14.

Claim. "What I claim as my invention, is the manner set forth of employing steam and heated air together, the same consisting substantially of the combination of the steam pipes, tuyeres, and close chamber or ash pit. And I also claim the employment of the two sets of tuyeres, for introducing steam and heated air in the manner set forth: that is to say, one being applied at the grate bars while the other is applied to the combustion pit, for the purposes substantially set forth."

17. For an Improvement in Operating Brakes for Railway Cars; C. B. Turner, Buffalo, Erie county, New York, November 14.

The patentee says,-"The nature of my invention consists in a certain new and useful combination of horizontal transverse turning shafts and pendant levers to them, to which are secured horizontal transverse bars, having concave rubbers to press against the peripheries of the car wheels, and intermediate suspended levers, with similar transverse bars and concave rubbers, and for the like purpose to those first mentioned, placed against the opposite sides of the wheels, the said pendant and suspended levers being connected by parallel longitudinal jointed screw rods and nuts, the upper end of the intermediate suspended levers being connected by transverse timbers, the several series of rubbers attached to each car being actuated simultaneously by the momentum of the car, and a corresponding resistance of the contiguous car, by acting against the sliding bumpers, springs, and bars, which, in turn, act against the horizontal transverse timbers that connect the upper ends of the intermediate suspended levers, by which the concave rubbers are made to clasp the wheels in pairs, and thus to arrest the motion of the car gradually, and without producing a sudden and violent shock, a similar operation being produced on the several cars of the train in quick succession, there being two series of rubbers and bumpers to each car, operated simultaneously; said brakes being so arranged and combined with windlasses on the platforms of the cars, by means of levers and connecting rods, and chains, that the rubbers can be brought in contact with the wheels thoughout the train simultaneously, by the brakeman simply turning one of the windlasses."

Claim. "What I claim as my invention, is, 1st, Constructing the brake so as to act simultaneously on all the wheels of the car or cars of the train, on opposite sides, by the momentum and resistance of the several cars, and the consequent contact of the bumpers, which actuate the rubbers, and by which the motion of the cars is arrested: that is to say, I claim the combinations of the rubbers, levers, shafts, bars, and rods, arranged and operated in the manner set forth, or operated by manual power applied through the agency of the windlasses, chains, levers, rods, or other similar contri

vances.

"2d, I claim the manner of constructing the sliding spring bumper, for operating the brake by the momentum and resistance of the cars, as set forth: that is to say, I claim the combination of the slide with the bumper and spring, constructed, arranged and operating in the manner set forth.”

18. For an Improvement in Rotary Valve Musical Instruments; Thomas D. Paine, Smithfield, Providence county, Rhode Island, November 14. The patentee says,-"My improvement consists in the introduction and application of a third or centre valve pipe through the roller of the instrument, which said pipe may be round or oval."

Claim. "What I claim as my invention, is the introduction, use and application of the third or centre valve pipe, through the roller or rollers. of all rotary valved metallic wind instruments, the whole being combined and operating as set forth."