Robbins's lubricating oil, the process of producing which I have herein fully set forth. I also claim every use and application of the said oil. LEWIS S. ROBBINS. No. 8490.-Improvement in distilling Acid and Naphtha from Rosin. Having thus fully described my new and improved process of distilling rosin, what I claim therein as my invention, and desire to secure by letters patent, is— First. The process of separating the acid and water, arising from the decomposition of rosin, at the temperature of 325 degrees Fahrenheit, or thereabout, by means of fire heat, substantially in the manner herein. set forth. I also claim, in combination with the above, the process of separating the naphtha from the other component parts of the rosin by preserving the temperature of the liquid mass within the still at about the range of 325 degrees Fahrenheit, as above stated, and injecting steam into the same, by which I am enabled to throw off the naphtha at the same temperature employed for throwing off the acid. I do not intend to limit my improved process of distillation, as hereinbefore described, to the production of oil from rosin, but shall employ it for redistilling the crude article known as rosin oil. LEWIS S. ROBBINS. No. 8491.-Improvement in Paint Oil from Rosin. What I claim as my invention, and desire to secure by letters patent, is the new and original product or manufacture which I denominate Robbins's paint oil, the process of producing which I have herein fully set forth. I also claim every use and application of my said oil. LOUIS S. ROBBINS. No. 8492.-Improvement in the manufacture of Charcoal. What I claim as my invention, and desire to secure by letters patent, is the iron cylinder with a double bottom, the upper one being perforated, and these combined with several flues, covered at the top with dampers,. and protected within with iron rings, the whole so constructed that the fire may be applied either on the top, under the bottom, or within the flues, or in all together, at pleasure; and the whole adapted, as herein described, to the uses and purposes specified, and these only. WM. P. McCONNELL. No. 8493.—Improvement in Folding Doors of Stoves. Having thus fully described my improved doors for grates and stoves, what I claim therein as new, and for which I desire to secure letters pat-ent, is the sliding and folding doors, in combination with pilasters, by which I prevent the heating of the doors and warping consequent thereon and admit a free radiation of heat from the side of the stove, substantially in the manner and for the purposes set forth. JAMES ROOT. No. 8494.-Improvement in processes for Dyeing Blue. I claim as my invention the mode of producing a dark blue, or color to take the place of indigo, which color can be produced at a very great saving of expense, in comparison to that incurred by the employment of indigo in the usual way. I do not mean to claim the use of a prussiate of potash dye alone; but do claim the employment of such dye, in combination with either one or more of the above-named woods, substantially in manner as specified. EDWARD SWINEY. No. 8495.—Improvement in Compounds for Extinguishing Fires. What I claim is the application of a compound of sulphur and nitre, in a state of combustion, within a room or apartment on fire, for the purpose of extinguishing the fire tending to destroy the said room or building thereof. JOSHUA UPHAM. No. 8496.-Improvement in Springs. Having described the nature of my said invention, and the manner of performing the same, I declare that I claim, as of my invention, the above specified mode of arranging or combining springs and inclined planes, or surfaces, curved or plane, so that the points, or arms, of the springs may be applied to or press against the inclines, or inclined planes, for the purpose of thereby obtaining the action of said springs, in manner hereinbefore described. JAMES WEBSTER. No. 8497.-Improvements in Planing Machines. Having thus fully described the nature of my invention, what I claim therein as new, and desire to secure by letters patent, is the application of springs or weights to cutter stocks, both at their point, in line with the cutting-edge of the knife, and also to the heel, by which a double action is given to the stock, both at the heel and edge, allowing it to rise and oscillate to the inequalities of boards or plank, substantially as described and for the purposes herein set forth. GEO. W. BEARDSLEE. No. 8498.-Improvement in Carriage Springs. My improvement, and, therefore, what I claim, consists in combining buttress blocks, C, D, with the wood bar, A, and the metallic strap bar, B, in such manner, substantially as specified, so that such blocks, when the spring is in use, shall act as levers, to compress the wood and counteract the tendency of the fibres to be elongated and ruptured by the downward strain. LEVI BISSELL. No. 8499.-Improvement in Machines for Dressing Staves. What I claim as my invention, and desire to secure by letters patent, is dressing staves by means of stationary knives, in combination with a pressure roller, directly over the cut, when this is combined with the bed, constructed with a raised portion where the cutting is done, for the purpose of allowing a crooked or bent stave freedom of motion while being dressed, substantially as described. LEWIS S. CHICHESTER. No. 8500.-Improvement in Bating and Tanning Hides. What I claim as my invention, and desire to secure by letters patent, is the method, herein described, of bating hides and other skins in the process of tanning, by subjecting them to a vapor bath, applied substantially in the manner herein described. I also claim the combination of the rocking frame and the shaft above, the two being connected, as herein set forth, in such manner that the shaft may be used either to rock the frame or to raise it from the vat. WM. B. MILLIGAN. No. 8501.-Improvement in Cheese, Butter, and Bread Cutters. What I claim as my invention, and desire to secure by letters patent, is the arrangement of the circular revolving table (e) and knife, (,) the said knife being attached to the sliding shaft, (i,) and operated by means of a treadle (,) and weighted cord and pulley, or their equivalents, so that the cheese, or other article to be cut, may be placed upon the table and not removed until, by a single revolution of the wheel, and a few slight pressures of the foot upon the treadle, it is cut into as many parts as may be desired, without crumbling or waste. B. F. ADAMS. No. 8502.-Improvement in the construction of Scythe Fastenings. What I claim as my invention, and desire to secure by letters patent, is the mode of adjusting the lever, D, by rotating the ring, C, around its own axis, by which the point of the scythe is thrown out or drawn in, as shown and described, the upper end of the lever, D, passing through an eye, g, attached to the ring, C, the fulcrum of the lever being near the end of the snath, as shown at e, and the scythe attached to the lower end of the lever, as set forth. DAVID ANTHONY, SEN. No. 8503.-Improvement in Hand Planes. What I claim as my invention, and desire to secure by letters patent, is the application to carpenters' planes and moulding tools of a new method of confining the iron, by a metallic apparatus, acting upon the principles of the lever and cam, in combination with the set screw for adjusting the same, as herein described, using for the purpose the aforesaid contrivance or arrangement of parts, or any other substantially the same, and which will produce the same effects in like manner. BENJAMIN F. BEE. No. 8504.-Improvement in Screens of Winnowing Machines. I do not claim any part or portion of the gear, fans, or forms of the hopper or shoe as an original invention, as I am aware that all these have been in common use. But what I do claim as new, and desire to secure by letters patent, is the arrangement of guides, D, D, and side apertures on the upper movable screen, as seen in figure 3, and the lower screen, as seen in figure 4, attached to the shoe, and which screen may be attached to any common winnowing machine, in the manner and for the purposes before described. JONATHAN BEAN. No. 8505.-Improvement in Stave Jointing Machines. What I claim as my invention, and desire to secure by letters patent, is the adjustable knife, in combination with the adjustable rest, as described, to adapt them to the jointing of staves for casks of different bilge. DANIEL DRAWBAUGH. No. 8506.-Improvement in Shuttle motions of Looms. What I do claim, and desire to secure by letters patent, is hanging the picker staff or staves upon radius rods, D and E, having two distinct radial motions, substantially as herein set forth, for the purpose of causing the end which operates upon the shuttle to describe or make a rectilinear motion parallel with the raceway, and with less power than has heretofore been done. GEORGE W. PERRY. No. 8507.-Improvement in Machines for cutting the Soles of Boots and Shoes. What I claim as my invention, and desire to have secured to me by letters patent, is the mode or means, herein above described, for insuring the unerring turning of the knife-frame for cutting both sides of the sole, said means consisting of the notched pawl lever and spring, y, y, operating on the journal plates of said frame, substantially as hereinabove described. JOSEPH STEGER. No. 850S.-Improvement in Car Seats. Having thus described the nature of our invention, what we claim as new, and desire to secure by letters patent, is the arrangement of two levers in a cross position, so that any required height of back may be carried and reversed from and to either side of the seat, and secure it firmly in its position at any required angle, substantially the same as described and represented. EZEKIEL BOOTH, No. 8509.-Improvement in Telescopes. What I claim as my invention, or improvement, consists in combining the glasses, or glasses and diaphragms, with a sliding or eye-piece tube, A, of a telescope, by means of a tube, or slide, B, perforated through its side or sides in such manner as to enable a person, when the said tube, B, is withdrawn from its enclosing tube, to obtain ready access through the openings, or perforations, to the glasses, or lenses; the whole being substantially in the manner and for the purpose as described. ALVAN CLARK. No. 8510.-Improvement in Machines for cutting Hides. What I claim as my invention is the combination of mechanism for reducing dry hide to a strip, and mechanism for cutting or removing the hair from the under-side of the said strip, at one continued operation, substantially in the manner as described. JACOB C. FLINT. No. 8511.-Improvement in bending Felloes. What I claim as new, and desire to secure by letters patent, is the curbs, C, D, in combination with the box, B, or its equivalent, said curbs being constructed in the manner and for the purpose substantially as described. A. W. JOHNSTON. No. 8512.-Improvement in Card Grinders. What I claim, and desire to secure by letters patent, is an instrument for grinding or sharpening wool, cotton, or other cards, made with sectional card teeth, which are so bent at the heel as to make the sharp edge more prominent than its opposite and broad edge, together with its application to the card that is to be ground in such a direction as to cause the sharp edge of the teeth of the grinder to be first presented to and enter among the teeth of the card. RICHARD KITSON. No. 8513.-Improvement in Daguerreotype Apparatus. Therefore, we claim First. The construction of a camera box, with a cross-opening, or mortise, to receive a sliding frame, that carries both an object glass and the Daguerreotype plate, as described. Second. The construction and application of a sliding frame, i, with a division, to receive a frame carrying an oblong object glass, so formed as to be placed either vertically or horizontally, as described and shown. Third. The construction of the slide, i, so as to receive in the other division a Daguerreotype plate in a frame, n, such frame, n, being pressed in place by springs, 16, and held in place by blocks, 17, taking notches in the frame, n, as described and shown. WILLIAM LEWIS, |