ADJUSTABLE STOVEPIPE THIMBLE.--H.N. Bill, Willimantic, Conn.--This invention relates to improvements in thimbles for the passage of stovepipes through the walls into flues, and consists in providing a vertically-sliding thimble plate in a metallic frame, having a long opening, and adapted for insertion in an opening through the wall, so as to support the thin plate at or about the line of the face of the flue wall, so that the plate may be drawn up or down to vary the hight of the thimble for pipes of different vertical lengths. The invention, also, comprises an improved mode of attaching the thimbles to this plate by means of radial studs at the rim, separated from the main part of the rim and bent inward so as to pass through slots in the thimble plate around the hole, to engage behind the edge of the plate by turning the thimbles on their axes a short distance after being passed through the slots, while the main part of the rims of the said thimbles bear against the front face of the thimble plate and cover the slots when so turned. COMBINED HAY RAKE AND TEDDER.--John C. Mills, Palmyra, N.Y.--This invention relates to a new and useful improvement in combining two important agricultural machines in one (or combining a tedder with a hay rake), and it consists in the construction of the tedder and the arrangement of the same in combination with the rake. Patented Dec. 7, 1869. POST-HOLE AUGER.--Geo. Seeger and Chas H. Shaffer, Clark's Hill, Ind.--This invention relates to a post hole boring apparatus, mounted upon a wheelbarrow, and the invention consists in providing the barrow with legs that may be either turned up out of the way or adjusted at any required angle so as to keep the barrow level when on uneven ground. SELF-DROPPER FOR REAPERS.--T.F. Lippencott, Conemaugh, Pa.--This invention has for its object to furnish an improved self-dropper for reapers, which shall be so constructed as to operate automatically, to fall and deposit the grain and to rise to receive another supply, making the gavels all of about the same size. PLOWING MACHINE.--Albert Bondeli, Philadelphia, Mo.--This invention has for its object to furnish an improved machine for preparing the ground to receive seed, and which shall be so constructed and arranged as to prepare the ground more thoroughly and put it in better condition to receive seed, and which shall be so constructed and arranged as to prepare the ground more thoroughly and put it in better condition to receive the seed than when the ordinary plows are used. EXPANDING TRIPLE SHOVEL PLOWS.--Edward Wiard, Louisville, Ky.--This invention has for its object to furnish an improved triple shovel plow, which shall be so constructed and arranged that the shovels may be conveniently expanded and contracted, or set at any desired pitch, and, at the same time, in such a way as to be securely held in any desired position.