Engineering TRACTION EKGINE.—Edward Ingleton, Pottstown. Pa. This improvement provides an endless tread for the traction wheels, of such a character that the tread of a wheel will be much enlarged over its circumference, the tread being adapted to be raised in such a manner that the traction wheel will turn practically on its own center when the engine is being steered. The elevation and depression of the tread is accomplished automatically with the operation of the steering apparatus. FURNACE GRATE.— Ed ward P. Eastwick, Jr., New Orleans, La. This improvement relates to traveling grates or stokers which automatically receive theirfuel and discharge their refuse, and provides means for separating the unburned fuel from the ashes. At the discharge side or end ofthe grate is a hopper to receive and retain ashes or refuse, and at its bottom is a valved opening and traveling conveyor, the opening being kept sufficiently closed to prevent a too free admission of air to the furnace. WATER ELEVATOR. — John Tre- vett, Casper, Wyoming. This invention comprises a water wheel with elongated peripheral buckets having side and end openings, th latter closed by a spring-pressed valve actuated by automatic mechanism. The wheel is designed to be mounted on floats to raise water from streams for irrigating and other purposes, the construction of the apparatus being simple throughout, and it being adapted to run continuously without needing attention. DEVICE FOR RAISING SHIPS.—John D. Cooper, Cheboygan, Mich. Submersible pontons are, according to this invention, lowered for attachment to a vessel and emptied of their contents, the mechanism for flUing-, lowering, and emptying the ponton being electrically controlled from a neighboring vessel. Floats on the surface are also connected with the ponton, and all the floats may be connected with and controlled by the current from a dynamo on the vessel. Railway Appliances. CAR EAT.—James M. Osgood, Boston, Mass. This is a chair with reversi ble and reclining backs, to serve as backs and leg rests, while the backs are so divided that each chair may be formed into a tetea-tete, with a half back facing in one direction and the other back in the opposite direction, both backs being simultaneously moved to a safety position. The backs and rests are also so arranged as to be readily adjustable and convertible into a couch or berth, the alternate chairs being raised to form upper berths. forming practically a series of staterooms with a seat in the lower part, thus giving to each berth a separate dressing compartment. Electrical. TELEPHONE TRANSMiTTER.—Ignatius Lucas, Passaic, N. J. Two patents have been granted this inventor, according to one of which the contact disks are embedded in a filling of loose material, preferably sliver or wool as it leaves the carding machine and previous to being felted, the filling being also in contact with the diaphragm and greatly softening the sounds for transmission. According to the other improvement, a material composed of a base having granulated carbon thereon is used between the opposing faces of the buttons of telephones and similar instruments, with the carbon in contact with the buttons, to insure a uniform and perfect transmission of sonnd, even if the transmitter be in a building subjected to unusual noise and jar. Mining, Etc. SEPARATOR AND AMALGAMATOR. — Prank IJ. Fisher, Granger, Oregon. Upon a screwthreaded standard, according to this invention, is a series of wheels with threaded hubs carrying troughs of progressively increasing diameters adapted to deliver from one to the other from the top to the bottom, a spreader plate on the top of the standard delivering into the upper trough. The troughs are filled with mercury, and the tailings flow over the edges of the upper troughs into the lower ones, the sand beingeasily washed and the gold amalgamated. SUB A QUE O U S MINING MACHINE.— Henry W. and William W. Smith,Portland, Oregon. According to this improvement fluke wheels are arranged upon a vertical shaft within a tubular body, the power to operate the shaft being supplied by any suitable motor, aud the machine acting on the suction principle to cany upward by a strong current of water gold and other valuable minerals found in the beds of streams. The tubular body may be swung freely to place it in position for effective operation in the bed of a stream, and it and the wheel shaft may be lengthened as desired. Agricultural. THRASHING MACHINE. — Fran klin P. Mercer, Conway Spring:;:, Kan:as. In this machine the grain is delivered to an elevator which conveys it to a riddle, through which it is passed while being subjected to an air blast to an exit at either side of the machine, as desired, the straw being passed out at one end of the maehine, without possible interference with the riddle or exit for the grain. The machine has virtually two thrashing cylinders, a lower one breaking the bundles and scattering the straw, while an upper cylinder acts in conjunction therewith to thoroughly thrash out the grain. BoLTER.—Niels Nielsen, Copenhagen, Denmark. This invention relates to bolters having a gy ratory motion in a horizontal frame, and is designed to reduce or prevent irregular and injurious vibrations of the bolter frame. Automatic compensation is provided for variations in the weight of material fed to the bolter, to maintain the bvlter frame in equilibrium, and upward and downward vibrations are provided against by adjusting the center of gravity in a vertical direction. miscellaneous. WAGON ROAD SNOW PLow.—Albert C. Plumley, Sherburne, Vt. A sled with long runners has at its front end a V-shaped plow, and near the rear ends of the runners, on each side, are pivoted rearwardly sloped cutter bladee and wings, which may be readily raised and lowered, to cause them to engage with snow at different heights from the ground, so that the removal of a great depth of snow may be effected by degrees. Where the road is narrow, the wing and cutter blade on one side may be removed.. HOSE CLAMP AND PATCH. —Aaron H. Forst, Louisville, Ky. For temporarily repairing burst or otherwise ruptured hose, this inventor has devised a clamp and patch consisting of two narrow semicircular cast metal parte, connected by a hinge, each of the parts lined with rubber, the parts being adapted to be brought together around a hose by a cam-locking device and lever. The device is very simple and readily applied, and for use on steam or hot water pipes the packing or lining is preferably made of material other than rubber—preferably asbestos. METAL SASH RAIL PROT E C TOR. Thomas B. Fultz and Rufus Huff, Sullivan, Ill. This is an improvement more particularly applicable to shop or show windows having large and heavy plate giass panes, the protector being designed to cover the lower rail and furnish a seat for the pane. It is provided with a gutter for receiving the water or drip from condensing vapor on the inner surface of the pane, the water being prevented from contact with the sash rail proper and conducted off outside the building. TABLE AND RACK —J. Emil Dryfoos, New York City. This is a combination device adapted for arrangement as an ordinary table, or which may be conveniently converted into a display rack on which goods may be advantageously displayed. The rack is raised and lowered by hand pulls. and the top of the rack may be adjusted to different inclinations. LINE OR HAMMOCK HoLDER.—John Bohlen, Big Rapids, Mich. TO) effectively support and clamp clothes lines in a taut position and for holding hammocks, etc., this inventor has devised a very simple line holder, consisting of but three pieces, very inexpensively made and put together. The holder consists of a bracket plate, swivel block and clamping lever, and the device has a free lateral movement, accommodating itself to a line stretched diagonally. RAIN WATER CONDUIT.—Walter Van Benthuysen, New Orleans. La. This is an automatically operating device which conducts the first wash of water from a roof into a vessel other than the tank or cistern, but when the roof has been thus washed off, as at the commencement of a rain, a portion of the conductor, which is pivoted, is moved to a position to deliver the remaining portion of the rainfall into the tank or cistern. BLACKBOARD AND DESK.—Louis Doll, Danbury, Conn. This invention consists of a blackboard supporting on its under side a game apparatus, affording an educational appliance for children designed to combine study with pleasure. The board is pivotally connected at its sides with braces pivoted on a fixed support, either face of the board being readily brought into uppermost position. MUSIC LEAF T URNE R. — Frederick Leeds, New York City. This is a simple and inexpensive construction for use with a piano, organ or other instrument, or on a music stand, and in which sheet or bound music may be placed, the performer being then able to readily turn the leaves without interfering with bis or her playing. Any desired number of leaf-turning arms may be employed, the arms being so placed in engagement with the leaves that different leaves cannot follow eacb other from suction when one of them is rapidly turned. OFFICE DiRECTORY.—Daniel Waide, San Francisco, Cal. This is a mechanical directory for business buildings, comprising a casing with hinged glazed cover, there being hinged in the case a carrier frame which may be drawn out and supported at an angle. A head block is designed to receive the words, h floor, Uroom, etc., and the case is adapted to receive indicator strips of wood to receive the names, one strip being readily substituted for another as desired. PRISM POINTER FOR TYPEWRITERS.— Walter B. Dyer, Pottsville, Pa. This device has a body section adapted for connection with the rear portion of the typewriter basket and terminates at its forward end in a yoke, from the center of which an indicator leads to the forward portion of the typewriter basket. With this improvement no disagreeable clinking sound is given out with each stroke of the type keys, and the pointer i adjusts itself automatically. The device also serves as a I rest or support for and assists in preventing the curling ! of the ribbon at the printing point. PRINTING PHOTOGRAPHS IN COLORS. —Edward R. Hewitt, New York City. This inventor has devised a method of forming many-colored photographic prints by applying to a suitable backing a series of superposed films bearing different colors, eonespondI ing approximately with the colors of the object photographed, sensitizing the composite film formed of the films of different colors, rendering portions of the film insoluble by exposure to light through a negative, and finally developing the picture by washing with an appropriate solvent. DENTAL PLUGGER.—Joseph R. Jones, Ontonagon, Mich. The holder frame of this plugger is especially adapted to receive and grasp any of the usual forms of plugging instruments, and improved mechanism is provided for supporting and manipulating the mallet, so that its operation may be more readily effected I and controlled by the operator. The blow given by the mallet is a sharp welding blow, differing from a spring blow, the spring being used simply to retract the mallet. The plugger may be used as a hand pressure instrument without changes or adjustments. BLOUSE OR JACKET. — Henry Shrier, New York City. This is a garment more especially designed for boys wear, and is arranged to permit of reversing the parts, to turn the soiled portions under and bring into view a fresh, clean surface, also changing the appearance of the garment by different trimmings and colors. The neck opening is cut low and has a detachable reversible collar, there being a reversible and detachable front piece. CHECKREIN SWIVEL.—Julius C. Clausen, Hensall, Canada. This is a simple device readily attachable to the bridle or other strap, and which is free to turn in any direction, there being no danger of the strap separating from the swivel. HORSESHOE PAD.—Michael Hallanan, New York City. This pad has a yielding block at the heel provided with side extensions which terminate rearwardly of the nail holes, the extensions and the shoe having squared meeting ends that are each rabbeted and lap each other. The pads are designed for use with shoes of different sizes and shapes, to prevent balling of snow, picking up nails or pebbles, etc. NoTE.—Copies of any of the above patents will be furnished by Munn & Co., for 25 cents each. Please send name of the patentee, title of invention, and date of this paper.